Answer:
She should choose the second cylinder-shaped box with a diameter of 30 cm and a height of 20 cm.
Step-by-step explanation:
The volume of a cylinder with a diameter of 20 cm (radius of 10 cm) and a height of 40 cm:
[tex]V=\pi{r^2h}[/tex]
[tex]V=\pi{(10^2)(40)}[/tex]
[tex]V\approx{12566.37\text{ cm}\textsuperscript{3}}[/tex]
The volume of a cylinder with a diameter of 30 cm (radius of 15 cm) and a height of 20 cm:
[tex]V=\pi{r^2h}[/tex]
[tex]V=\pi{(15^2)(20)}[/tex]
[tex]V\approx{14137.17\text{ cm}\textsuperscript{3}}[/tex]
Therefore, if Vesa wants to buy more popcorn, she should choose the second cylinder-shaped box with a diameter of 30 cm and a height of 20 cm.
expand and simplify 3(2x+1)+(x+4)
Which equation has the same solution as x² + 4x + 13 = -10?
From the given set of equation the one which has same solution as
x² + 4x + 13 = -10 is given by (x+2)² = -19.
As given in the question,
Given equation is equal to:
x² + 4x + 13 = -10
Simplify it we get,
x² + 4x + 13 +10 =0
⇒ x² + 4x + 23 =0 ___(1)
General quadratic equation is
ax² + bx + c =0
a = 1 , b =4 , c =23
Simplify the given options we have:
a. (x+2)² = -19
⇒ x² + 4x + 4 = -19
⇒ x² + 4x + 4 + 19 =0
⇒ x² + 4x + 23 =0
Has same solution as given one.
b. (x-2)² = -27
⇒ x² -4x + 4 +27 =0
⇒x² -4x +31 =0
'b' and 'c' value are different
Not have same solution.
c. (x-2)² =-19
⇒ x² -4x + 4 +19 =0
⇒x² -4x +23 =0
'b' value is different.
Not have same solution.
d. (x+2)² = -27
⇒ x² +4x + 4 +27 =0
⇒x² +4x +31 =0
'c' value is different
Not have same solution.
Therefore, from the given set of equation the one which has same solution as x² + 4x + 13 = -10 is given by (x+2)² = -19.
The complete question is:
Which equation has the same solution as x² + 4x + 13 = -10?
a. (x+2)² = -19
b. (x-2)² = -27
c. (x-2)² =-19
d. (x+2)² = -27
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What is the y intercept of the line -3x+2y=6 ?
O
-3
-2
2
3
Answer:
positive 3
Step-by-step explanation:
Steps:
1. first you must get y by itself/isolate it to one side of the equation to get it in the format of y = mx + b
-3x + 2y = 6
+3x +3x add 3x to both sides to get 2y by itself
____________
2y = 3x + 6 -3x+3x cancels out and becomes 0
-------------------------
2 divides both sides by 2 to get y by itself
y = (3/2)x + 3
2. Looking at the equation, we know that 3 is the y-intercept because the "b" in the slope-intercept equation is always the y-intercept.
A survey asked 300 students to choose their favorite type of movie.
The results are shown in the following table.
(a) Find the percentage for each type of movie.
Type of movie
Action
Comedy
Drama
Thriller
Number of
students
27
42
120
111
Percentage
1%
%
%
%
X
5
Answer:
300/100%=3%
Step-by-step explanation:
sorry, can't explain.Ihave class tomorrow
The laundry room at a hotel sent 160 bath
towels and 64 washcloths to the most rooms
they could so that each room received the
same number of each type of towel. How
many bath towels and how many washcloths
went to each room?
Answer:
5 bath towels
2 washcloths
Step-by-step explanation:
160 = 2⁵ × 5
64 = 2⁶
HCF= 2⁵ = 32
160 ÷ 32 = 5
64 ÷ 32 = 2
PLEASE HELP BY 8/11/2022
Answer:
9 m
Step-by-step explanation:
given,
area of floor of play pen = 5 m²
we know, area of a square = (side)² sq units
now according to the question,
5 = (side)²
⇒√(side)² = √5 [taking square root on both sides]
⇒ side = √5 m
now, we know,
perimeter of a square = 4 × side = 4 × √5 = 8.94 m (app.) ≈ 9 m
Leticia invests $200 at 5% interest. If y represents the amount of money after x time periods, which describes the graph of the exponential function relating time and money?
The initial value of the graph is 200. The graph increases by a factor of 1.05 per 1 unit increase in time.
The initial value of the graph is 200. The graph increases by a factor of 5 per 1 unit increase in time.
The initial value of the graph is 500. The graph increases by a factor of 2 per 1 unit increase in time.
The initial value of the graph is 500. The graph increases by a factor of 1.02 per 1 unit increase in time.
The exponential function relating time and money will be y = 200 (1.05)ˣ. Then the correct option is A.
What is an exponent?Consider the function:
y = a (1 + r) ˣ
Where x is the number of times this growth occurs, a = initial amount, and r = fraction by which this growth occurs.
Leticia contributes $200 at 5% interest. Assuming that y addresses how much cash after x time spans.
Then the exponential equation is written as,
y = 200(1 + 0.05)ˣ
y = 200 (1.05)ˣ
The exponential function relating time and money will be y = 200 (1.05)ˣ. Then the correct option is A.
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The formula is у= 6х - 5 Determine the value of x, if y=7
Answer:
x=2
Step-by-step explanation:
You can put the equation as 7=6x-5
Move equation
12=6x
Divide
x=2
Over three days, Molly earns $2,568 for a local charity. On the first day, she earns twice as much as she earns on the second day. On the third day, she earns three times as much as the second day. How much does she earn on the first day?
If on the third day, she earns three times as much as the second day. The amount that she earn on the first day is $856.
How to find the amount earned?Let a = Amount earned on the first day
Let b = Amount earned on the second day
Let c = amount earned on the third day
Let a + b + c =2568,
Hence,
2b + b +3b =2568
6b =2568
b =2568/6
b =428 second day
So,
a = 2b
a =2(428)
a =856 first day
Thus
c = 3b where b = 428
c=3(428)
c=1284 third day
Check:
a +b + c = $2568
856 + 428 + 1284 = $2568
Therefore she earned $856 on the first day.
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What is the solution?
3x-10 < 4(x-2)
Answer:
x > -2
Step-by-step explanation:
3x - 10 < 4x - 8
Collect like terms
3x - 4x < 10 - 8
-1x < 2
Divide both sides by -1
-1x/-1 < 2/-1
x > -2
Find the greatest common factor of the two numbers.
12,39
Answer:
3
Step-by-step explanation:
first factor out both the numbers
12:2*2*3
39:3*13
find the common ones and multiply them together
they both share only 3, so 3
What is the y-intercept of a line that has a slope of 2 and ( - 2, 3 ) is a point on the line?
The y-intercept of the line will be equal to 7.
What is an equation of the line?An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.
The general form of the equation of the line:-
y = mx + c
m = slope
c = y-intercept
Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given that a line that has a slope of 2 and ( - 2, 3 ). The y-intercept of the line will be calculated as,
y = mx + c
3 = (-2 x 2 ) +c
3 = -4 + c
c = 4 + 3
c = 7
Therefore, the y-intercept of the line will be equal to 7.
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A2 Lesson 3.2 Practice
1. Does the graph shown represent a function for 0 < x < 6? Explain.
Yes, the graph shown represents a function for 0 < x < 6 because its domain is true about the given interval.
What are the domain and range of the function?The domain of the function includes all possible x values of a function, and the range includes all possible y values of the function.
The function is given in the represented graph
According to the given graph, we can see the value of the domain of the given function f(x) when the function includes all possible variables of x values of a function.
Here the domain of the given function is 0 < x < 6
Therefore, the graph shown represents a function for 0 < x < 6 because its domain is true about the given interval.
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Shaquana's car used 8 gallons of gas to drive 312 miles. Fill out a table of equivalent ratios and plot the points on the coordinate axes provided
A table of equivalent ratios for the miles and gallons of gas driven is as follows:
Miles Gallons
39 1
117 3
312 8
The data points are plotted in the graph shown in the image attached below.
What is a proportional relationship?In Mathematics, a proportional relationship can be modeled or represented by the following mathematical expression:
x = ky
Where:
x represents the miles.y represents the gallons.k represents the constant of proportionality.In order to have a proportional relationship and equivalent ratios, the variables x and y must have the same constant of proportionality.
Next, we would calculate the constant of proportionality (k) as follows:
Constant of proportionality (k) = x/y
Constant of proportionality (k) = 312/8
Constant of proportionality (k) = 39.
When x = 39, the value of y is given by:
y = x/k
y = 39/39
y = 1 gallons.
When y = 3, the value of x is given by:
x = ky
x = 39 × 3
x = 117 miles.
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Khalil filled an ablum with 104 postcards. If there are 4 postcards on each page, how many pages are in the ablum?
Step-by-step explanation:
so there sre 104 postcards .so what we do is 104 ÷ 4 post cards on each page , it will then = to 26 pages
If you cut a sheet of paper in half, stack one piece on top of the other, cut those in half, stack all the pieces together, repeating this process 20 times, how high will the stack of paper be?
Answer:
65c
Step-by-step explanation:
I need asap thank you
Answer:
33 degrees
Step-by-step explanation:
The square in the corner of these two vectors signifies that this is a right angle, which will always equal 90 degrees, so if you subtract angle 2's value of 57 degrees, you will be left with angle 1 as 33 degrees.
The horsepower (hp) that a shaft can safely transmit varies jointly with its speed (in revolutions per minute (rpm))
and the cube of the diameter. If the shaft of a certain material 2 inches in diamter can transmit 16 hp at 120 rpm,
what must the diameter be in order to transmit 30 hp at 150 rpm?
The Diameter of the cube would be 3 inches
What is Variation?
A variation is a relationship that exists between a set of values for one variable and a set of values for other variables.
Solution:
We know that,
Horse Power is directly proportional to RPM * Diameter
So, we can write
Horse Power = k * RPM * Diameter
here, k is any constant
From the first case given, we can find the value of k
16 = k * 2 * 120
k = 1/15
Putting the value of k in second case,
30 = 1/15 * 150 * Diameter
Diameter = 3 inches
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Sheila is making accessories for the soccer team. She uses 784.96 inches of fabric on headbands for 28 players and 4 coaches. She also uses 238.28 inches of fabric on wristbands for just the players. How much fabric was used on a headband and wristband for each player?
Answer: 3.28 inches
Step-by-step explanation:
Fabric used for players and coaches is 776.32 inches.
Number of players is 29 and coaches is 3
So fabric used for each player and coach for the headbands is
776.32/29+3 = 24.26 inches
So, for the players 24.26 of fabric will be used for the headbands.
Total fabric used for the wristbands is 247.66 inches
Fabric used for the wristband is
247.66/29 = 8.54 inches
So, total amount of fabric used by Shelia for the wristband and headband is 24.26 + 8.54 = 32.8 inches.
f(x)=(-3x^2-1)/3x^3 does f have an inverse function?
Answer: Yes, Probably
Suppose that you have a square pyramid like the one pictured. Which plane section will produce a trapezoid? Question 4 options: A) Cutting off one of the bottom corners B) A cut parallel to the vertical axis, directly through the vertical axis C) A cross section cut parallel with the bottom D) A cut parallel to the vertical axis, but off the vertical axis
When you have a square pyramid, the plane section that will produce a trapezoid is B. A cut parallel to the vertical axis, directly through the vertical axis
What is a square pyramid?It is defined in geometry as a shape with a square base with equal side lengths and all of the square's joints at the top that are perpendicular to the center of the square.
Geometry, as we know, is the branch of mathematics concerned with the size, shape, and orientation of two-dimensional figures. A trapezoid, also known as a trapezium, is a closed, flat shape with four straight sides and one pair of parallel sides.
It's parallel sides are known as the bases, and its non-parallel sides are known as the legs. A trapezoid can have parallel legs as well.
In this case, the cut parallel to the vertical axis, directly through the vertical axis will produce the trapezoid.
In conclusion, the correct option is B.
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The weight, in pounds, of a newborn baby t months after birth can be modeled by the equation W=1.75t+6. What is the slope of the equation and what is its interpretation in the context of the problem?
Answer:
the slope is 1.75
Step-by-step explanation:
Interpretation: The weight of newborn is 6 lb at birth, and every month baby gained 1.75 lb. You replace x with month you want to know the weight. For example you can calculate the weight after 4 month : w= 1.75(4)+6= 13 lb
Please Help 2
If a runner traveled a distance of d(h)=/16h4 in time t(h) = 3h4 - 3h3 -5h2 what is the runner's speed?
The runner's speed If a runner traveled a distance of d(h)=/16h4 in time t(h) = 3h^4 - 3h^3 -5h^2 is 4 /3h^2 - 3h -5h.
How can the speed be calculated?The concept that will be used to calculate this is the concept of speed which is the ratio of the distance per time which can be expressed as
speed = distance/time
Then we were given distance as d(h)=/16h^4
time as t(h) = 3h^4 - 3h^3 -5h^2
Speed = [tex]\sqrt{16h^4} /3h^4 - 3h^3 -5h^2[/tex]
Then we will have 4h^2 /3h^4 - 3h^3 -5h^2
then take h^2 from both the numerator and denominator and then cancel them , then we will have
= 4 /3h^2 - 3h -5h.
Therefore, the first option is correct.
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A trail mix is made by adding cashews that sell for $2.75 per pound to chocolate candies that sell for $1 per pound. How many of each should be used to get 50 pounds of trail mix that sells for $2 per pound?
Complete the statements.
The 50 pounds of trail mix includes [DROP DOWN 1] pounds of cashews and [DROP DOWN 2] pounds of chocolate candies.
The 50 pounds of trail mix includes 28.57 pounds of cashews and 21.43 pounds of chocolate candies.
What pounds of cashew and chocolate candies should be mixed to make the trail mix?let
x = pounds of cashewy = pounds of chocolate candiesx + y = 50
2.75x + y = 50 × 2
Solve the equation simultaneously
x + y = 50
2.75x + y = 100
Substract the equations2.75x - x = 100 - 50
1.75x = 50
x = 50/1.75
x = 28.57 pounds
Substitute into
x + y = 50
28.57 + y = 50
y = 50 + 28.57
y = 21.43 pounds
So therefore, the pounds of cashew and chocolate candies needed are 28.75 and 21.43 respectively.
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a fabric designer is mapping out a new design. part of the pattern is formed by a repeating polygon the inital polygon has vertices ( -7, 3), (- 4,6), ( -1, 3) and (-4, 0) The next polygon is a translation of the first along the vector {3, -3}. Which is not a vertex of the image?
Considering the given translation, the vertex that is not part of the image is:
H(3,0).
What are the translations to an image?
The translations to an image are represented as follows:
The vector notation of a translation is given as follows:
{x ± a, y ± a}
In this problem, this notation is:
{3, -3}.
Hence the rule applied to each vertex of the image is:
(x,y) -> (x + 3, y - 3).
The vertices of the original figure are as follows:
( -7, 3), (- 4,6), ( -1, 3) and (-4, 0)
Applying the translation rule, the vertices of the image are given as follows:
(-4, 0), (-1, 3), (2, 0), (-1, -3).
The lone coordinate without a vertex of the image is H(3,0).
Missing InformationThe problem is given by the image at the end of the answer.
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I need help on this question and it is the last one please help!
Both function in item I is decreasing, and the function in item II is increasing.
What is function?
A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output. Each function has a range, co-domain, and domain.
What is domain?
The range of values that we are permitted to enter into our function is known as the domain of a function. The x values for a function like f make up this set (x). A function's range is the collection of values it can take as input. After we enter an x value, the function outputs this sequence of values.
What is range?
The difference between the lowest and highest values in a list or set is known as the range. Put all the numbers in order before determining the range. The lowest number should then be subtracted from the highest. The range of the list is provided in the response.
1) As shown in the I that the function is in 3rd quadrant so thats why it decreases.
2)As show in II figure if ;
x1 = -1 ,y1 = -1
x2 = 0 , y2 =2
x3 = 1, y3 = 5
from the above observation it is clear that ;
x1<x2, y1<y2, x2<x3, y2<y3
So, the II item is increases (monotone increasing)
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What is 8% off of 12$?
Answer:
11.04 U.S. dollarsStep-by-step explanation:
because it is the answer I looked it up (;-;)The screenshot included A crate of medicine with a density of 2050 kilograms per cubic meter that will be shipped from England to the U.S. What is the crate's density in pounds per cubic foot?
The crate's density in pounds per cubic foot?
What is the crate's density in pounds per cubic foot?Since the crate of medicine with a density of 2050 kilograms per cubic meter will be shipped from England to the U.S, we require its density in pounds per cubic foot.
To do this, we convert the density in kilograms per cubic foot to pounds per cubic foot by using the ratios of conversion given
Since the density of the crate in kilograms per cubic meter is
2050 kg/m³, using the conversion ratios, we have
2050 kg/m³ = 2050 kg/m³ × 1 m³/35.3 ft³ × 2.2 lb/kg
= 4510 lb/m³ × 1 m³/35.3 ft³
= 127.76 lb/ft³
So, crate's density is 127.76 lb/ft³
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You want to have $300,000 when you retire in 30 years. If you can earn 4% interest compounded continuously, how much would you need to deposit now into the account to reach your retirement goal?
An amount of $ 92,495.60 must be the initial deposit to become into $ 300,000 by compound interest.
How much money must be deposited to obtain a given quantity for retirement?
In this problem we must determine the initial deposit that must become into $ 300,000 by compound interest after a period of 30 years. Compound interest model is a model where money gains interest continuously, whose formula is:
C' = C · (1 + r / 100)ⁿ
Where:
C - Initial deposit, in monetary units.C' - Final deposit, in monetary units. r - Interest rate, in percentage.n - Number of periods, in years.If we know that C' = 300,000, r = 4 and n = 30, then the initial deposit is:
C = C' / (1 + r / 100)ⁿ
C = 300,000 / (1 + 4 / 100)³⁰
C = 92,495.60
The initial deposit must be $ 92,495.60.
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Consider the equation and the following ordered pairs: (−3,y) and (x,2).
y=−3x−1
Step 1 of 2 : Compute the missing x and y values so that each ordered pair will satisfy the given equation.
Complete the table below.
x y
row 1−3 Answer
row 2 Answer
2
The missing values of the ordered pairs using the given equation are:
x = -1; y = 8
The computed table is:
x | y
-3 8
-1, 2
How to Complete a table Using Equation?To complete a table of values, we can plug in the known value of each of the ordered pairs that are represented in a table into the given equation that models the relationship, then find the value of the missing variable.
The equation that represents the relationship between x and y is given as y = -3x - 1.
Find the value y in the ordered pair (-3, y) by substituting x = -3 into y = -3x - 1:
y = -3(-3) - 1 = 8
y = 8
Find the value x in the ordered pair (x, 2) by substituting y = 2 into y = -3x - 1:
2 = -3x - 1
Add 1 to both sides
3 = -3x
Divide both sides by -3
x = 3/-3
x = -1
The ordered pairs with the missing values are: (-3, 8) and (-1, 2).
The table would be computed as:
x | y
-3 8
-1, 2
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