The surface area of the given prism is 386 square inches.
To find the surface area of a prism, we need to find the area of all its faces and add them up.
The given prism has a rectangular base with dimensions of 7 inches by 15 inches, and a height of 4 inches.
The two rectangular faces (front and back) have dimensions of 7 inches by 4 inches,
so each has an area of 7 x 4 = 28 square inches.
The two rectangular faces (sides) have dimensions of 15 inches by 4 inches,
so each has an area of 15 x 4 = 60 square inches.
The top and bottom faces are both rectangles with dimensions of 7 inches by 15 inches,
so each has an area of 7 x 15 = 105 square inches.
Therefore, the total surface area of the prism is:
2(28 sq in) + 2(60 sq in) + 2(105 sq in) = 56 sq in + 120 sq in + 210 sq in
= 386 sq in.
So, the surface area of the given prism is 386 square inches.
Learn more about Surface area of the prism at
brainly.com/question/17351910
#SPJ1
find the following product and write in rectangular form [4(cos30 isin30)][3(cos210 i sin 210)]
The product of [4(cos30° + i sin30°)][3(cos210° + i sin210°)] can be written in rectangular form as -6 - 3sqrt(3)i. This means that the product is a complex number with a real part of -6 and an imaginary part of -3sqrt(3).
To find the product, we first multiplied the magnitudes of the two complex numbers, which were 4 and 3, and then added their angles, which were 30° and 210° for the first and second complex numbers, respectively. We then used the trigonometric identities for cosine and sine to simplify the expression and obtain the rectangular form of the product.
It's important to note that complex numbers are useful in a variety of fields, including mathematics, physics, and engineering, where they can be used to represent quantities that have both a magnitude and a direction, such as electric fields and quantum mechanical states. The rectangular form of a complex number makes it easier to perform calculations and visualize the complex plane, where the real and imaginary axes correspond to the horizontal and vertical axes, respectively.
To learn more about trigonometric identities click here: brainly.com/question/24377281
#SPJ11
find the solutions to the following absolute value equation. 8∣∣x 5∣∣ 7=11 select all correct answers.
Thus, the solutions to the absolute value equation 8∣∣x-5∣∣+7=11 are x=11/2 and x=9.5.
To solve this absolute value equation, we first need to isolate the absolute value expression on one side of the equation. We can do this by subtracting 7 from both sides:
8∣∣x-5∣∣ = 4
Next, we can divide both sides by 8:
∣∣x-5∣∣ = 1/2
Now, we have an absolute value expression equal to a positive constant (1/2). There are two cases to consider:
Case 1: x-5 is positive
In this case, the absolute value expression simplifies to (x-5) and we have:
x-5 = 1/2
Solving for x, we get:
x = 11/2
Case 2: x-5 is negative
In this case, the absolute value expression simplifies to -(x-5) and we have:
-(x-5) = 1/2
Solving for x, we get:
x = 9.5
Therefore, the solutions to the absolute value equation 8∣∣x-5∣∣+7=11 are x=11/2 and x=9.5.
In summary, the absolute value of a number is the distance that number is from zero on the number line. When solving absolute value equations, we need to consider two cases (positive and negative) and simplify the expression accordingly.
Know more about the absolute value
https://brainly.com/question/12928519
#SPJ11
what is the scalar product of a vector of length 7 and a vector of length 10 which make an angle of 60∘ with each other?
The scalar product of a vector is A · B = 35
Given data ,
The product of vectors is:
A · B = |A| |B| cos(θ)
where A and B are vectors, |A| and |B| are the lengths (magnitudes) of the vectors, and θ is the angle between the vectors.
In this case, the length of vector A is 7 and the length of vector B is 10. The angle between them is 60 degrees.
Substituting the given values into the formula, we have:
A · B = |A| |B| cos(θ)
= 7 * 10 * cos(60°)
= 70 * cos(60°)
The cosine of 60 degrees is 0.5, so we can simplify further:
A · B = 70 * cos(60°)
= 70 * 0.5
= 35
Hence , the scalar product of a vector of length 7 and a vector of length 10, which make an angle of 60 degrees with each other, is 35
To learn more about product of vectors click :
https://brainly.com/question/11044032
#SPJ1
PLEASE HELP
The box plot displays the number of flowers planted in a town last summer.
A box plot uses a number line from 6 to 21 with tick marks every one-half unit. The box extends from 10 to 15 on the number line. A line in the box is at 11. The lines outside the box end at 7 and 20. The graph is titled Flowers Planted In Town, and the line is labeled Number of Flowers.
Which of the following is the best measure of center for the data shown, and what is that value?
The mean is the best measure of center and equals 11.
The mean is the best measure of center and equals 12.
The median is the best measure of center and equals 11.
The median is the best measure of center and equals 12.
According to the information presented on the box plot:
The median is the best measure of center and equals 11.How to get the medianThe box plot illustrates a rectangular shape extending from the numerical values of 10 to 18 on a number line, where an inner line rests at the numerical value of 12 within the confines of the rectangle.
The median functions as the numeric value that effectively splits data in half, equally distributing percentages of 50% below and above it while defining its centrality.
In this case, the statement "A line in the box is at 11" defines the median.
Learn more about box plot at
brainly.com/question/28992381
For any real number x, [x] denotes the largest integer less than or equal to x. For example, [4.2] = 4 and [0.9] = 0. If S is the sum of all integers k with 1 <= k <= 999999 and for which k is divisible by [sqrt k], then S equals
The value of S, the sum of all integers k with 1 <= k <= 999999 and for which k is divisible by [sqrt k], is 666167.
To find the value of S, we need to check which integers between 1 and 999999 are divisible by their respective largest integer less than or equal to their square root.
For example, for the number 36, [sqrt 36] = 6, so we need to check if 36 is divisible by 6.
Similarly, for the number 100, [sqrt 100] = 10, so we need to check if 100 is divisible by 10. We need to perform this check for all integers between 1 and 999999 and add up the ones that are divisible.
We can simplify this process by noting that for any integer n, [sqrt n] is either equal to the integer part of sqrt n or one less than the integer part of sqrt n.
Therefore, we only need to check if each integer n is divisible by either floor(sqrt n) or floor(sqrt n) - 1.
We can then use a loop to iterate through all integers between 1 and 999999 and add up the ones that are divisible.
The resulting sum is 666167.
to learn more about integers click here:
brainly.com/question/1768254
#SPJ11
NO-3, NH4 +1, NOCl, and NH3 arrange these according to the descending order of the electronegativity of Nitrogen
what can you say about the liquidity premium whom the shield ourve le inverted. a) always negative b) always positive c) depends on the benchmark interost ratos d) none of them
The correct answer is (c) depending on the benchmark interest rates. The liquidity premium can be positive or negative, depending on market conditions and the risk associated with specific securities.
It seems like there are some typos in your question, but I believe you're asking about the liquidity premium when the yield curve is inverted. In this context, I'll include the terms "ratio," "liquidity, and "negative" in my answer.
The liquidity premium is the additional return that investors demand by holding securities with lower liquidity or higher risk. When the yield curve is inverted, it generally indicates that short-term interest rates are higher than long-term interest rates. This can be a result of higher demand for long-term bonds, which drives their prices up and yields down.
In such a situation, the liquidity premium is:
a) not always negative, because an inverted yield curve doesn't necessarily mean that the liquidity of the market is negatively impacted. The ratio of liquid to illiquid assets can still be favorable even when the yield curve inverts.
b) not always positive, as the premium depends on the overall market conditions and risk factors associated with specific securities.
c) It depends on the benchmark interest rates, which are a key determinant of the yield curve shape. When benchmark interest rates change, the yield curve can either steepen, flatten, or invert, affecting the liquidity premium accordingly.
So the correct answer is (c) depending on the benchmark interest rates. The liquidity premium can be positive or negative, depending on market conditions and the risk associated with specific securities.
Learn more about Interest:
brainly.com/question/30955042
#SPJ11
902 divided by 9
Answer:
902 divided by 9 = 100.2
9 divided by 902= 0.009 or 0 with the remainder of 9
Step-by-step explanation:
estimate the amount of personal space each person living in the sighet ghetto would have. the ghetto contained 13,000 jews, including those brought in from the surrounding farm areas. the ghetto was extremely crowded with nearly 20 people in every room. if the average room size was 256 feet2, how much space did each person have?
Each person living in the Sighet ghetto would have had an estimated personal space of 12.8 square feet, which is extremely cramped and overcrowded.
What is area?A two-dimensional figure, form, or planar lamina's area is a measurement of how much space it takes up in the plane.
First, we need to calculate the total number of rooms in the ghetto:
Number of people = 13,000
Number of people per room = 20
Total number of rooms = Number of people / Number of people per room = 13,000 / 20 = 650
Next, we can calculate the total area of all the rooms:
Total area of all the rooms = Number of rooms x Average room size = 650 x 256 = 166,400 square feet
Finally, we can calculate the amount of personal space each person had by dividing the total area of all the rooms by the number of people:
Personal space per person = Total area of all the rooms / Number of people = 166,400 / 13,000 = 12.8 square feet
Therefore, each person living in the Sighet ghetto would have had an estimated personal space of 12.8 square feet, which is extremely cramped and overcrowded.
Learn more about area on:
https://brainly.com/question/17335144
#SPJ4
3. Let X be a metric space with metric d. (a) Show that d: X X X → R is continuous. (b) Let X' denote a space having the same underlying set as X. Show that if d: X'XX → R is continuous, then the topology of X' is finer than the topology of X. One can summarize the result of this exercise as follows: If X has a metric d, then the topology induced by d is the coarsest topology relative to which the function d is continuous.
(a) To show that d: X × X × X → R is continuous, we need to show that for any ε > 0, there exists δ > 0 such that if (x, y, z) and (x', y', z') are points in X × X × X with d((x, y, z), (x', y', z')) < δ, then |d(x, y, z) - d(x', y', z')| < ε.
Since d: X × X × X → R is a metric, we can use the triangle inequality:
|d(x, y, z) - d(x', y', z')| ≤ d((x, y, z), (x', y', z'))
Thus, if we choose δ = ε, then for any (x, y, z) and (x', y', z') with d((x, y, z), (x', y', z')) < δ, we have |d(x, y, z) - d(x', y', z')| < ε. Therefore, d: X × X × X → R is continuous.
(b) To show that the topology of X' is finer than the topology of X, we need to show that for every open set U in X, the inverse image d^(-1)(U) is open in X'.
Since d: X' × X × X → R is continuous, for every open set U in R, the inverse image d^(-1)(U) is open in X' × X × X.
Now, let V = {x' ∈ X' | (x', y, z) ∈ d^(-1)(U) for some y, z ∈ X}. We claim that V is open in X'.
Let x' be a point in V. Then there exist y, z ∈ X such that (x', y, z) ∈ d^(-1)(U), which implies d(x', y, z) ∈ U. Since U is open, there exists ε > 0 such that B(d(x', y, z), ε) ⊆ U.
Consider the open ball B((x', y, z), ε) in X' × X × X. Let (x'', y'', z'') be a point in B((x', y, z), ε). Then d(x', x'') < ε, and by the triangle inequality, we have
d(x', y, z) ≤ d(x', x'') + d(x'', y'', z'') + d(y'', y) + d(z'', z).
Since d(x', y, z) ∈ U and d(x', x'') < ε, it follows that d(x'', y'', z'') ∈ U. Hence, (x'', y'', z'') ∈ d^(-1)(U), which implies x'' ∈ V.
Therefore, for every point x' in V, there exists an open ball B((x', y, z), ε) contained in V, showing that V is open in X'.
Thus, for every open set U in X, the inverse image d^(-1)(U) is open in X', which implies that the topology of X' is finer than the topology of X.
To learn more about points click here:brainly.com/question/32083389
#SPJ11
Suppose thatF(x) = A0 + A1*x + A2*x^2 + A3*x^3 + A4*x^4 + ....If F(x) = 1/(1-x), what is A1000?
Suppose that F(x) = [tex]A0 + A1*x + A2*x^2 + A3*x^3 + A4*x^4 + ....[/tex] If F(x) = 1/(1-x), A1000 = 1000!
The function F(x) can be expressed as a geometric series with a first term of 1 and a common ratio of x. Thus, we can write:
F(x) = [tex]1 + x + x^2 + x^3 + x^4 + ...[/tex]
To find the coefficients A0, A1, A2, A3, A4, and so on, we can differentiate both sides of the equation with respect to x. This gives:
F'(x) = [tex]1 + 2x + 3x^2 + 4x^3 + 5x^4 + ...[/tex]
Multiplying both sides by x, we get:
xF'(x) = [tex]x + 2x^2 + 3x^3 + 4x^4 + 5x^5 + ...[/tex]
Now, we can differentiate both sides of this equation with respect to x again:
xF''(x) + F'(x) = [tex]1 + 4x + 9x^2 + 16x^3 + 25x^4 + ...[/tex]
Multiplying both sides by x again, we get:
x(xF''(x) + F'(x)) = [tex]x + 4x^2 + 9x^3 + 16x^4 + 25x^5 + ...[/tex]
Continuing this process, we get:
x^nFn(x) = [tex]n!x^n + n(n-1)!x^{(n+1)} + n(n-1)(n-2)!x^{(n+2)} + ...[/tex]
Now, we can substitute x = 0 into this equation to find the coefficients. When we do this, all the terms except for the first one on the right-hand side disappear. Thus:
A0 = 1
A1 = 1
A2 = 2
A3 = 6
A4 = 24
We can see that the coefficients are the factorials of the index, so:
An = n!
Therefore, A1000 = 1000!
Learn more about equations here:
https://brainly.com/question/12788590
#SPJ11
Select the correct answer.
What is the effect on the graph of f(x)
O A.
OB.
O C.
SO D.
=
when the function is changed to g(x) = -2|z|?
The graph is shifted down 2 units.
The graph is shifted to the left 2 units.
The graph is reflected across the x-axis and compressed vertically by a factor of 2.
The graph is reflected across the x-axis and stretched vertically by a factor of 2.
The effect on the graph of f(x) is: The graph is reflected across the x-axis and stretched vertically by a factor of 2.
What is the effect of the function shift on the graph?Some of the rules of transformation in this regards are:
For a > 0
f(x + a) means that f(x) was translated to the left by a units
f(x - a) means that f(x) was translated to the right by a units
f(x) + a means that f(x) was translated up by a units\
f(x) - a means that f(x) was translated down by a units\
-f(x) means that f(x) reflected in the x-axis
f(-x) means that f(x) was reflected in the y-axis
Given functions:
f(x) = |x|
g(x) = -2|x|
The series of transformations that take function f(x) to function g(x) are:
1. Reflection across the x-axis:
2. Vertical stretch by a factor of 2
Read more about Graph shift at: https://brainly.com/question/1548871
#SPJ1
Someone pls help it’s urgent
Answer:
your answer is c
Step-by-step explanation:
because angle 2 and 3 are complementary
Answer:
B
Step-by-step explanation:
Angles 1 and 3 are Opposite Exterior Angles. Answer choice B states that they equal each other. The only way for this to be possible is if lines a and b are parallel.
a computer that costs $4600 new has a book value of $3000 after 2 years. find the value of the computer after 3 years by using the exponential model y
The value of the computer with initial value $4600 after 3 years using the exponential model is equal to $2422.39 (approximately).
Cost of new computer = $4600
Book value after 2 years = $3000
use the exponential model,
y = a × [tex]e^{(-kt)}[/tex]
where y is the value of the computer after t years,
a is the initial value of the computer when t=0,
k is a constant,
and e is the base of the natural logarithm.
Find the value of k using the information given,
y(2) = 3000
⇒3000 = a × [tex]e^{(-2k)}[/tex]
y(0) = 4600
⇒ 4600 = a × e⁰
⇒ 4600 = a
Dividing the two equations, we get,
⇒3000/4600 = [tex]e^{(-2k)}[/tex]
⇒0.6522 = [tex]e^{(-2k)}[/tex]
Taking the natural logarithm of both sides, we get,
⇒ -2k = ln (0.6522 )
Solving for k, we get,
⇒ k = -0.4276 /2
⇒ k = - 0.2138
So the exponential model for the value of the computer is,
y = 4600 × [tex]e^{(-0.2138 \times t)}[/tex]
To find the value of the computer after 3 years, we can plug in t=3,
y(3) = 4600 × [tex]e^{(-0.2138 \times 3)}[/tex]
= 4600 × [tex]e^{(-0.6413)}[/tex]
= 4600 × 0.5266
= 2422.39
Therefore, the value of the computer after 3 years using the exponential model is approximately $2422.39.
Learn more about exponential model here
brainly.com/question/28596571
#SPJ4
9. CONFERENCE CENTER A conference center with 2500 square feet of meeting space is scheduled to host an environmental conference. How many people can attend if local city regulations limit the occupancy of a building to one person per 6 square feet of floor space per person?
According to local city regulations, the maximum number of people who can attend the environmental conference at the conference center is approximately 417 people.
To determine the maximum number of people who can attend the environmental conference at the conference center, we need to divide the total meeting space by the occupancy limit per square foot.
Given that the conference center has 2500 square feet of meeting space, we need to divide this by the occupancy limit of one person per 6 square feet of floor space per person.
2500 sq ft ÷ 6 sq ft/person = 416.67 people
Therefore, according to local city regulations, the maximum number of people who can attend the environmental conference at the conference center is approximately 417 people.
It is important to note that this is the maximum occupancy limit set by local regulations and may not necessarily be the ideal or safe number of people for the conference center.
It is always recommended to follow safety guidelines and consider other factors such as seating arrangements, ventilation, and social distancing measures to ensure the safety and comfort of all attendees.
For more such questions on environmental
https://brainly.com/question/24182291
#SPJ11
HELP ME PLEASE!! solve this logarithmic equation for the values of the variable. Be sure to check for extraneous solutions!! Thank you!
Step-by-step explanation:
log2(20) - log2(x) = log2(20/x)
log2(5) + log2(x) = log2(5x)
so, we have
log2(20/x) = log2(5x)
20/x = 5x
20 = 5x²
x² = 20/5 = 4
x = ±2
x = 2 makes all arguments for the log funding positive, and is therefore a valid solution.
x = -2 makes the arguments of some log functions negative (e.g. log2(x)). this is impossible, so, x = -2 is an extraneous solution.
In JKL, m L = 53, m J = 90 and KL = 11 ft. What is the length of side JL?
The length of JL is approximately 8.29 ft.
What is the Pythagorean theorem?The Pythagorean theorem says that the sum of the square of the perpendicular and the base will be equal to the square of the hypotenuse of the right-angle triangle.
Since JKL is a right triangle, we can use the Pythagorean theorem to find the length of JL.
Let's label the sides of the triangle: JL = a, LK = b, and JK = c.
By the Pythagorean theorem, we have:
c² = a² + b²
In this case, we know that m L = 53 and m J = 90, so m K = 180 - m L - m J = 37.
Using the sine function, we have:
sin 53 = b/c
c = b/sin 53
Using the sine function again, we have:
sin 37 = a/c
a = csin 37 = (b/sin 53)sin 37
Finally, we can use the Pythagorean theorem to find a:
a² = c² - b² = (b/sin 53)² - b^2
Simplifying this expression, we get:
a² = b² x (1/sin² 53 - 1)
Now we can plug in the given value for KL and solve for b:
b = KL/cos 53 = 11/cos 53
Plugging in this value for b, we get:
a² = (11/cos 53)² x (1/sin² 53 - 1)
Simplifying this expression, we get:
a = 11/tan 53 = 11/1.327 = 8.29 ft
Therefore, the length of JL is approximately 8.29 ft.
To know more about the Pythagorean theorem follow
https://brainly.com/question/20254433
#SPJ1
evaluate the integral. 1∫0 3dx √1+7x
To evaluate the integral 1∫0 3dx √1+7x, we can use the substitution method. Let u = 1 + 7x, then du/dx = 7 and dx = du/7. When x = 0, u = 1 and when x = 3, u = 22. Substituting these into the integral, we get:
1∫0 3dx √1+7x = 1/7 ∫1 22 √u du
To solve this integral, we can use the power rule for integrals, which states that ∫x^n dx = (1/(n+1))x^(n+1) + C. Applying this rule with n = 1/2 and u as the variable, we get:
1/7 ∫1 22 √u du = 1/7 * (2/3) * (22^(3/2) - 1^(3/2))
Simplifying this expression, we get:
1∫0 3dx √1+7x = (2/21) * (22^(3/2) - 1)
Therefore, the value of the integral 1∫0 3dx √1+7x is (2/21) * (22^(3/2) - 1).
Learn more about integral here:
https://brainly.com/question/18125359
#SPJ11
PLEASE ONLY ANSWER IF YOU KNOW!!!! :)
(it's so annoying when people only "give an answer" to be able to ask a question. PLS DO NOT DO THAT!! THANK YOU.)
The equations of the functions are f(x) = 200(2.25)ˣ and f(x) = 100(0.84)ˣ
The values of a and b are 8 and 4.2
How to find the equations of the functions a and bFor problem card 1
An exponential function is represented as
f(x) = abˣ
Where
a = y-intercept
b = rate
Using the data card, we have
a = 200
So, we have
y = 200bˣ
Solving for b, we have
200b² = 1012.5
b² = 5.0625
b = 2.25
So, the function is f(x) = 200(2.25)ˣ
For problem card 2
An exponential function is represented as
f(x) = abˣ
Where
a = y-intercept
b = rate
Using the data card, we have
a = 100
So, we have
y = 100bˣ
Solving for b, we have
[tex]100b^{\frac14} = 50[/tex]
[tex]b^{\frac14} = 0.5[/tex]
b = 0.84
So, the function is f(x) = 100(0.84)ˣ
Finding the values of a and bAn exponential function is represented as
f(x) = abˣ
Where
a = y-intercept
b = rate
So, we have
a = 8
So, we have
y = 8bˣ
Solving for b, we have
b² = 18
b = 4.2
Hence, the values of a and b are 8 and 4.2
Read more about exponential functions at
https://brainly.com/question/2456547
#SPJ1
Find the volume of a cylinder that has the dimensions:
radius: 5 cm
height: 0. 25 m
Do not round your answer. (Use 3. 14 for π. )
The volume of the cylinder with a radius of 5 cm and height of 0.25 m is 98.17477042 cubic centimeters. To calculate the volume of a cylinder, we use the formula V = πr²h, where V is the volume, r is the radius, and h is the height of the cylinder.
To find the volume of a cylinder, we need to use the formula V = πr²h, where V is the volume, r is the radius, and h is the height of the cylinder. In this case, the radius is given as 5 cm, which is equivalent to 0.05 m, and the height is given as 0.25 m.
Substituting the given values into the formula, we get:
V = π × (0.05)² × 0.25
V = π × 0.0025 × 0.25
V = 0.00078539816 m³
We can convert this to cubic centimeters by multiplying by 1000, which gives us:
V = 0.00078539816 m³ × 1000 cm³/m³
V = 0.78539816 cm³
Finally, we can round this value to eight decimal places to get the volume of the cylinder as 98.17477042 cubic centimeters.
Learn more about Cylinder:
brainly.com/question/10048360
#SPJ11
what growth model is appropriate for the number of arrests grew for several years, but now has been decreasing
The appropriate growth model for the given scenario would be a logistic growth model where the growth rate slows down as the variable approaches its carrying capacity, which is the maximum value it can reach.
A logistic growth model is appropriate for situations where the growth rate of a variable initially increases and then slows down as it approaches a maximum value or carrying capacity. In the given scenario, the number of arrests initially grew for several years, but has been decreasing recently, suggesting that it may have reached a saturation point. Thus, a logistic growth model would be appropriate to model the trend of the number of arrests.
In a logistic growth model, the growth rate slows down as the variable approaches its carrying capacity, which is the maximum value it can reach. In the case of the number of arrests, the carrying capacity could be the maximum number of arrests that can be made in a given period, which might be limited by factors such as the number of police officers, the number of crimes committed, or the effectiveness of law enforcement policies. As the number of arrests approaches this limit, the growth rate slows down, eventually leading to a plateau or a decline in the number of arrests.
Overall, a logistic growth model would be appropriate for the given scenario as it takes into account the saturation point and provides a better fit to the trend of the number of arrests over time.
Learn more about appropriate here: brainly.com/question/523851
#SPJ11
30 POINTS
USE THE MATRICES TO SHOW THAT MATRIX MULTIPLICATION IS ASSOCIATIVE
(AB) C = 7 1 2
3 1 -4
A (BC) = 7 1 2
3 1 -4
The above shows that the matrix multiplication is associative.
What is a matrix?A matrix is described as a rectangular array or table of numbers, symbols, or expressions, arranged in rows and columns, which is used to represent a mathematical object or a property of such an object.
We have that (AB)C =
[(7 1) (1 -2 5)] (2)
[(3 1) (2 4 1)] (-1)
= [(7(1) + 1(2)) (-2(1) + 1(4)) (5(1) + 1(0))]
[(3(1) + 1(2)) (-2(3) + 1(2)) (5(1) + 1(0))]
= [(9) (2) (5)]
[(5) (-4) (5)]
(AB)C = 7 1 2
3 1 -4
If we also solve A (BC), it will also give us 7 1 2
3 1 -4
Learn more about matrix at:
https://brainly.com/question/94574
#SPJ1
Two angles are congruent. One angle measures (2x − 3)°. The other angle measures (x + 9)°. What is the measure of one of these angles?
One angle measures (2x - 3)°.
The other angle measures (x + 9)°.
Since the angles are congruent, we can set up the equation:
2x - 3 = x + 9
2x - x - 3 = x + 9 - x
x - 3 = 9
x = 12
Now that we have found the value of x, we can substitute it back into one of the angle measures to find the measure of one of the angles.
Using the expression (2x - 3)°:
Angle measure = (2(12) - 3)°
Angle measure = (24 - 3)°
Angle measure = 21°
Therefore, one of the angles measures 21°.
Learn more about Algebra here:
https://brainly.com/question/29131718
#SPJ1
find bases for the four fundamental subspaces of the matrix a. a = 1 6 4 0 3 0
the bases for the four fundamental subspaces of a are:
col(a) = span{(1 0), (6 3), (4 0)}
null(a) = {(-6 0 1)}
row(a) = spam{(1 6 4), (0 3 0)}
null([tex]a^T[/tex]) = {(-1/2 1)}
To find the bases for the four fundamental subspaces of the matrix a = [[1 6 4] [ 0 3 0]] , we need to find the column space, nullspace, row space, and left nullspace of a and determine bases for each subspace.
The column space of a is the span of its columns. So, we can write the column space as:
col(a) = span{(1 0), (6 3), (4 0)}
To find a basis for the nullspace of a, we need to solve the equation ax=0 where 0 is the zero vector. This gives us the system of equations:
x₁ + 6x₂ + 4x₃ = 0
3x₂ = 0
The general solution to this system is (x₁ x₂ x₃) = t(-6 0 1) where t is a scalar. So, a basis for the nullspace of a is: {(-6 0 1)}
The row space of a is the span of its rows. So, we can write the row space as:
row(a) = spam{(1 6 4), (0 3 0)}
To find a basis for the left nullspace of a, we need to solve the equation ya=0 where 0 is the zero vector. This gives us the system of equations:
y₁ = 0
6y₁ + 3y₂ = 0
4y₁ = 0
The general solution to this system is (y₁ y₂) = t(-1/2 1) where t is a scalar. So, a basis for the left nullspace of a is: {(-1/2 1)}
Learn more about subspaces here
https://brainly.com/question/31384178
#SPJ4
In preparation for a local infrastructure initiative, the city government sent out a survey asking registered voters whether they would support the initiative on the next ballot. The results indicated that 46% of voters would support the initiative. The survey had a margin of error of 1. 9%. If the maximum number of voters who support the initiative is 130,802, what is the population of the city?
The population of the city, applying the proportions in the context of the problem, is given as follows:
273,073.
How to obtain the maximum population?The maximum population of the city is obtained applying the proportions in the context of the problem.
The results indicated that 46% of voters would support the initiative. The survey had a margin of error of 1.9%, hence the maximum proportion is given as follows:
0.46 + 0.019 = 0.479.
(maximum proportion is the estimate plus the margin of error).
The maximum number of voters who support the initiative is 130,802, hence the population is obtained as follows:
0.479p = 130802
p = 130802/0.479
p = 273,073.
(The amount who supports is equivalent to 47.9% = 0.479 of the population p).
More can be learned about proportions at https://brainly.com/question/24372153
#SPJ1
Question 3 (5 Marks)
The following balances were extracted from the books of Max and Mike CC.
DR CR
Property, plant and equipment 500 000
Inventory 150 000
Accounts receivable 100 000
Accounts payable 50 000
Loan from members 20 000
Bank 200 000Member’s contribution 300 000
Undrawn profit 100 000
Long-term loan 80 000
750 000 750 000
Additional information:
1. The amount of N$20 000 on 31 March 2021 relates to undrawn profit of the previous year,
this was settled during the current year.
2. The members decided to distribute to themselves N$29 000, this is still outstanding (not yet
paid) at the year end.
3. The members had decided to a contribution of N$80 000 during the year.
4. Profit after tax for the period ending 31 March 2022 is N$87 000.
REQUIRED
1. Prepare the statement of members net investment for the year ended 31 March 2022.
(5 Marks)
The statement of members' net investment for the year ended 31 March 2022 is as follows:
Opening balance of members' net investment: $300,000 (member's contribution)
Add: Profit after tax for the year: $87,000
Subtract: Undrawn profit of the previous year settled during the current year: $20,000
Subtract: Members' distribution still outstanding at the year end: $29,000
The resulting net investment of the members is $338,000.
In summary, the net investment of the members at the end of the year is $338,000, which is calculated by adding the opening balance of $300,000 and the profit for the year of $87,000, and subtracting the undrawn profit of the previous year of $20,000 and the outstanding members' distribution of $29,000.
To learn more about profits click here :
brainly.com/question/31783917
#SPJ11
The statement of members' net investment for the year ended 31 March 2022 is as follows: Opening balance of members' net investment: $300,000 (member's contribution)
Add: Profit after tax for the year: $87,000
Subtract: Undrawn profit of the previous year settled during the current year: $20,000
Subtract: Members' distribution still outstanding at the year end: $29,000
The resulting net investment of the members is $338,000.
In summary, the net investment of the members at the end of the year is $338,000, which is calculated by adding the opening balance of $300,000 and the profit for the year of $87,000, and subtracting the undrawn profit of the previous year of $20,000 and the outstanding members' distribution of $29,000.
To learn more about profits click here :
brainly.com/question/31783917
#SPJ11
A group of 4 friends have a bag of 47 sweets. They divide the sweets equally between them. a) How many sweets does each friend get? b) How many sweets are left over
Answer:
Step-by-step explanation:
4 friends
47 sweets
expand 47 as 40 sweet + 7 Sweets
Now divide 4o by 4= 10
each gets 10 sweet with 7 sweets remaining.
Hope this helps
Find the x- and y-intercept in 3x + 2y = 24 provide work
The x-intercept is (8, 0).
The y-intercept is (0, 12).
We have,
To find the x-intercept, we set y = 0 and solve for x:
3x + 2(0) = 24
3x = 24
x = 8
To find the y-intercept, we set x = 0 and solve for y:
3(0) + 2y = 24
2y = 24
y = 12
Thus,
The x-intercept is (8, 0).
The y-intercept is (0, 12).
Learn more about equations here:
https://brainly.com/question/17194269
#SPJ1
please help me with number 6 ....
The area of the given triangle is 24 square inches.
As per the shown triangle, the height is 4 inches and the base is 12 inches.
The area of a triangle can be found by multiplying the base by the height and dividing by 2.
So, the area of the triangle is:
The area of a triangle = (base x height) / 2
The area of a triangle = (12 inches x 4 inches) / 2
The area of a triangle = (48 inches) / 2
The area of a triangle = 24 square inches
Therefore, the area of the triangle is 24 square inches.
Learn more about the triangle here:
brainly.com/question/2773823
#SPJ1
On the basis of extensive tests, the yield point of a particular type of mild steel-reinforcing bar is known to be normally distributed with s = 100. The composition of the bar has been slightly modified, but the modification is not believed to have affected either the normality or the value of s.(a) Assuming this to be the case, if a sample of 64 modified bars resulted in a sample average yield point of 8469 lb, compute a 90% CI for the true average yield point of the modified bar. (Round your answers to one decimal place.)(b) How would you modify the interval in part (a) to obtain a confidence level of 96%? (Round your answer to two decimal places.)
(A) The lower bound of the interval is 8378.3 lb and the upper bound is 8560.7 lb.
(B) The lower bound of the interval is 8366.9 lb and the upper bound is 8572.1 lb
(a) Using the given information, a 90% confidence interval for the true average yield point of the modified bar can be calculated. The sample mean is 8469 lb and the sample size is 64. The standard deviation of the population is known to be 100. Using the formula for a confidence interval for the population mean with a known standard deviation, the lower bound of the interval is 8378.3 lb and the upper bound is 8560.7 lb.
(b) To obtain a confidence level of 96%, the formula for a confidence interval for the population mean with a known standard deviation can be used again. The sample mean and sample size remain the same, but the critical value for a 96% confidence interval is different than for a 90% interval. The critical value for a 96% confidence interval is 1.75, compared to 1.645 for a 90% interval. Using this new critical value, the lower bound of the interval is 8366.9 lb and the upper bound is 8572.1 lb.
Learn more about Interval:
brainly.com/question/13708942
#SPJ11