Answer:
Total area of pyramid = 113.57 sq units
Step-by-step explanation:
Given that
Pyramid has a regular hexagonal with side, a = 4 units
Slant height = 6 units
To find: Total Area of pyramid = ?
Solution:
Total area of pyramid = Area of hexagon + Area of each triangular face
Area of hexagon is given as:
[tex]A = 6 \times \dfrac{\sqrt3}{4}a^2\\\Rightarrow A = 6 \times \dfrac{\sqrt3}{4}4^2\\\\\Rightarrow A = 41.57\ sq\ units[/tex]
There are 6 triangular faces with base = 4 units and height as 6 units.
Area of 6 triangular faces:
[tex]6 \times \dfrac{1}{2} \times Base\times Height\\\Rightarrow 6 \times \dfrac{1}{2} \times 4\times 6\\\\\Rightarrow 72\ sq\ units[/tex]
Total area of pyramid = 41.57 + 72 = 113.57 sq units
what is 4 3/4 of rupee 1
Answer:
[tex]\frac{19}{4}=Rs 1[/tex]
[tex]Rs. 1 = 100 paise[/tex]
[tex]\frac{19}{4}=100 paise[/tex]
[tex]4.75=100 paise[/tex]
[tex]\frac{4.75}{100}=paise[/tex]
[tex]0.0475=paise[/tex]
i hope this will help you :)
=1,075
Therefore,
\frac{43}{4} =1,075
Hope it helps you!!!
Plz Mark me as a brailiest
Step-by-step explanation:
y=-5x-8
y=-2x-6
Round to the nearest hundredth.
(x, y) =
please tell ans of attached photo
Answer:
192 m^2.
Step-by-step explanation:
We can split this up into 3 rectangles:
Area of the bottom rectangle = 27 * (9-3)
= 27 * 6 = 162 m^2.
Area of rectangle on the left = (18-6)*2
= 24 m^2
Area of small rectangle on the right = 3*2
= 6 m^2
Total area = 162+24+6
192 m^2.
what is the remainder when p(x) is divided by (x-3) please help
Answer:
1
Step-by-step explanation:
We will use polynomial remainder theorem or little Bézout's theorem. It states that reminder p(x) divided by (x - a) is p(a). In our case (a = 3) it is p(3) = 1
Will give brainliest answer
Answer:
Radius = 6.5cm
Diameter = 13cm
Step-by-step explanation:
The diameter is given (13)
Radius is half the diameter (13/2=6.5)
Answer:
Radius = 13 / 2 = 6.5 cmDiameter = 13 cmExplanation
RadiusThe straight line is drawn from the centre of a circle to a point on its circumference is called radius of the circle. The radius of a circle is half of its diameter.
DiameterThe chord that passes through the centre of a circle is called diameter of circle. Diameter is also called the largest chord of any circle. The length of diameter of a circle is two times it's radius.
Hope this helps...
Good luck on your assignment...
PLS HELP (pic included)
hope it helps uh.......
The circumference of a boxing ring is 37.68 yd. What is the APPROXIMATE area of the boxing ring? Use 3.14 for π.
1. 904.4 sq yd
2. 113.0 sq yd
3. 452.2 sq yd
4. 226.1 sq yd
Answer:
2. 113.0 yd²
Step-by-step explanation:
Circumference Formula: C = 2πr
Area of a Circle Formula: A = πr²
Since we are given circumference, simply plug it in to find radius r:
Step 1: Find r
37.68 = 2πr
r = 37.68/2π
r = 5.99696
Step 2: Find area
A = π(5.99696)²
A = 112.983
Reflections over the X Axis
y = -✔️X
Domain:
Range:
A stone is dropped into a lake, creating a circular ripple that travels outward at a speed of 60 cm/s. Find the rate which the area within the circle is increasing after
a) 1 second, b) 3 seconds, and c) 5 seconds.
What can you conclude?
Answer:
[tex]\frac{dA}{dt} = 7200\pi t[/tex]
a) [tex]\frac{dA}{dt} = 7200\pi\ cm^2/s[/tex]
b) [tex]\frac{dA}{dt} = 21600\pi\ cm^2/s[/tex]
c) [tex]\frac{dA}{dt} = 36000\pi\ cm^2/s[/tex]
We can conclude that the area of the circle increases faster when the time increases.
Step-by-step explanation:
First let's write the equation for the area of the circle:
[tex]A = \pi*r^2[/tex]
The rate that the radius of the circle increases is 60 cm/s, so we have:
[tex]\frac{dr}{dt} = 60[/tex]
[tex]dr = 60dt \rightarrow r = 60t[/tex]
To find the rate that the area increases, let's take the derivative of the equation of the area in relation to time:
[tex]\frac{dA}{dt} = \pi*\frac{d}{dt} r^2[/tex]
[tex]\frac{dA}{dt} = \pi *\frac{dr^2}{dr} \frac{dr}{dt}[/tex]
[tex]\frac{dA}{dt} = \pi *2r *\frac{dr}{dt}[/tex]
[tex]\frac{dA}{dt} = 2\pi *(60t) *60[/tex]
[tex]\frac{dA}{dt} = 7200\pi t[/tex]
a)
Using t = 1, we have:
[tex]\frac{dA}{dt} = 7200\pi *1 = 7200\pi\ cm^2/s[/tex]
b)
Using t = 3, we have:
[tex]\frac{dA}{dt} = 7200\pi *3 = 21600\pi\ cm^2/s[/tex]
c)
Using t = 5, we have:
[tex]\frac{dA}{dt} = 7200\pi *5= 36000\pi\ cm^2/s[/tex]
We can conclude that the area of the circle increases faster when the time increases.
Quadrilateral DEFG is rotated 180° about the origin to create quadrilateral D'E'F'G'. In which quadrant does G' lie? A. I B. II C. III D. IV
Answer:
B. II
Step-by-step explanation:
G is in quadrant IV. The quadrant that is across the origin from that is quadrant II.
G' will lie in quadrant II
Answer:
B. 11
Step-by-step explanation:
Deluxe coffee is to be mixed with regular coffee to make at least 5151 pounds of a blended coffee. The mixture must contain at least 99 pounds of deluxe coffee. Deluxe coffee costs $55 per pound and regular coffee $33 per pound. How many pounds of each kind of coffee should be used to minimize costs?
Answer:
9 pounds of deluxe
42 pounds of regular
Step-by-step explanation:
given data
Deluxe coffee mix with regular coffee = 51
mix contains deluxe coffee = 9 pounds
Deluxe coffee costs $5
regular coffee costr = $3
solution
we consider here
deluxe coffee = x lbs
regular coffee = y lbs
and
x+ y ≥ 52
and mixture contains at least 9 pounds of deluxe coffee
so x ≥ 9
and
cost equation will be
cost C = 5x + 3 y
deluxe costs more than regular
and here we want to use as possible as to minimize the cost
so least amount
x + y = 51
x = 9
y = 51 - 9
y = 42
Julie went to visit her aunt and uncle for the weekend. She took the following clothes: two pairs of slacks – one brown, one black; three sweaters – one tan, one red and one white; two shirts – one white and one gray. What is the probability that Julie will wear brown slacks and a white shirt
Answer: 0.25
Step-by-step explanation:
The data we have is:
Slacks: one brown, one black.
Sweaters: one tan, one red, one white.
Shirts: one white, one gray.
If the clothes are selected at random, then the probability that Julie will wear brown slacks is equal to the number of brown slacks, divided the total number of slacks.
We have 1 brown slack and 2 slacks in total, so the probability is:
p1 = 1/2 = 0.5
We do the same for the white shirt, we have 2 shirts and one is white, so the probability is:
p2 = 1/2 = 0.5
And we do not have any condition in the sweater, so we can ignore that selection.
Then the probability of both events happening at the same time (that Julie will wear brown slacks and a white shirt) is equal to the product of the individual probabilities: P = p1*p2 = 0.5*0.5 = 0.25
If possible, find AB. & State the dimension of the result.
Answer:
Step-by-step explanation:
[tex]A=\begin{bmatrix}0 &0 &5 \\ 0 &0 &-3 \\ 0 &0 &3 \end{bmatrix}[/tex]
[tex]B=\begin{bmatrix}8 &-12 &5 \\ 7 &19 &5 \\ 0 &0 &0 \end{bmatrix}[/tex]
A.B = A × B
[tex]A.B=\begin{bmatrix}0 &0 &0 \\ 0 &0 &0 \\ 0 &0 &0 \end{bmatrix}[/tex]
Dimension of the resultant matrix is (3 × 3)
The ratio of surface areas of 2 similar cones is 16:49. What is the ratio of volumes of similar cones?
First, you need to get their square roots.
4:7
Next, you need to get the cube of their square roots so,
4^3:7^3
The answer is
64:343
Evaluate geometric series sigma1^20 4(8/9)^n-1
Answer:
32.5861
Step-by-step explanation:
I interpreted it this way:
20 - stop at n = 20 (inclusive)
1 - start at n = 1
4(8/9)^(n - 1) - geometric expression
In the right triangle show below are any altitudes shown does lead to any generalizations about tight triangles explain your answer.
Answer:
Yes altitudes are shown.
Two altitudes can be there depending upon the choice of base and altitude of triangle.
Step-by-step explanation:
First of all, let us have a look at the definition of an altitude in a triangle.
Altitude of any triangle is the perpendicular dropped (making a right angle with the side) on any side opposite to a vertex of triangle.
Here, in the given [tex]\triangle ABC[/tex], we can see that the [tex]\angle B[/tex] is right angle.
i.e. Altitudes are shown here.
Generalization about right triangles:
There can be two choices of altitudes in a right angled triangle depending upon the choice of base.
In the given triangle [tex]\angle B[/tex] is right angle.
If we choose AB as the base of triangle, the vertex opposite to AB is C.
The side BC is at right angle to AB i.e. perpendicular dropped from vertex C to side AB. Therefore BC is the altitude.
Now, If we choose BC as the base of triangle, the vertex opposite to BC is A.
The side AB is at right angle to CD i.e. perpendicular dropped from vertex A to side BC. Therefore AB is the altitude.
Using a Graph to Find Positive or Negative Intervals
Answer:
Step-by-step explanation:
The second is correct
f(x) <0 on ( _ infinit, -2.7) and ( -1, 0.8)
help help help help
Answer:
g=3
Step-by-step explanation:
f(g) = g^2 +3g
Let f(g) = 18
18 = g^2 +3g
Subtract 18 from each side
18-18 =g^2 +3g-18
0 = g^2 +3g-18
Factor
0 = (g+6) (g-3)
Using the zero product property
g+6 =0 g-3 =0
g = -6 g =3
The only solution listed is g=3
Four horizontal forces of magnitudes 1 N, 2 N, 3N and 4N act at a point in the direction whose bearings are 000, 060, 120 and 270 respectively. a Calculate the magnitude of their resultant. b. A 5th horizontal force of magnitude 3 N now acts at the same points so that the resultant of all five forces has a bearing of 090. Find the bearing of the 5th force
Answer:
resultant = 0.356N 202.1°
Step-by-step explanation:
Resultant force = √((x component)² + (y component)²)
X component= 1 cos 90 + 2 cos 30 + 3 cos 30 -4 cos 0
X component = 0 + 1.732 + 2.598 - 4
X component = 0.33
Y component = 1 sin 90 + 2 sin 60 -3sin 60 + 3 sin 0
Y component= 1+1.732-2.598
Y component= 0.134
Resultant = √( (0.33)² +(0.134)²)
Resultant= √(0.1089+0.017956)
Resultant= √ 0.126856
Resultant= 0.3562 N
Tan tita = 0.134/0.33
Tan tita = 0.406
Tita = 22.1°
Tab is positive In the third quadrant and first quadrant but the magnitude of the force lies mainly on the third so resultant = 0.356N 202.1°
For the fifth force.
X component =- 0.356 cos 67.9 +x
X component= -0.134 +x
Y component = 0.356sin22.1 +0
Y component= 0.1334
Tan tita = 0.1334/(-0.134+x)
Tita = tan^-1 0.1334/(-0.134+x)
90 = 0.1334/(-0.134+x)
Tan 90 is undefined so no more solution
Kelsey is going to graph the ordered pairs that are represented by this table on a coordinate plane
Answer:
4
Step-by-step explanation:
Since there are 4 columns of x and y values the answer is 4.
Answer:
How many points should appear in Kelsey’s graph Option B
(B) 4
Step-by-step explanation:
The following display from a graphing calculator presents the least-squares regression line for predicting the price of a certain commodity (y) from the price of a barrel of oil (x).
Y = a + bx
a = 4.95
b = 0.29
r2 = 0.53045
r = 0.72832
Predict the commodity price when oil costs $107 per barrel.
Answer:
35.98
Step-by-step explanation:
Fill in the numbers and do the arithmetic.
y = a + bx . . . . . . a=4.95, b=0.29, x=107
y = 4.95 + 0.29(107) = 35.98
The predicted price is 35.98.
The probability of the event "have a Bachelor's Degree" is ▼ by the occurrence of the event "never married", and the probability of the event "never married" is ▼ by the occurrence of the event "have a Bachelor's Degree", so the events are ▼
Answer:
a) Fill in the spaces
The probability of the event "have a Bachelor's Degree" is affected by the occurrence of the event "never married", and the probability of the event "never married" is affected by the occurrence of the event "have a Bachelor's Degree", so the events are not independent.
b) Probability of a woman aged 25 or older having a bachelor's degree and having never married = P(B n NM) = 0.0369
This probability is the probability of the intersect of the two events, 'have bachelor's degree' and 'have never married' for women aged 25 or older.
Step-by-step explanation:
Complete Question
According to a government statistics department, 20.6% of women in a country aged 25 years or older have a Bachelor's Degree; 16.6% of women in the country aged 25 years or older have never married; among women in the country aged 25 years or older who have never married, 22.2% have a Bachelor's Degree; and among women in the country aged 25 years or older who have a Bachelor's Degree, 17.9% have never married. Complete parts a) and (b) below.
(a) Are the events "have a Bachelor's Degree" and "never married"? independent? Explain.
(b) Suppose a woman in the country aged 25 years or older is randomly selected. What is the probability she has a Bachelor's Degree and has never married? Interpret this probability.
Solution
The probability of the event that a woman aged 25 or older has a bachelor's degree = P(B) = 20.6% = 0.206
The probability of the event that a woman aged 25 or older has never married = P(NM) = 16.6% = 0.166
Among women in the country aged 25 years or older who have never married, 22.2% have a Bachelor's Degree.
This means that the probability of having a bachelor's degree given that a woman aged 25 or older have never married is 22.2%.
P(B|NM) = 22.2% = 0.222
And among women in the country aged 25 years or older who have a Bachelor's Degree, 17.9% have never married
This means that the probability of having never married given that a woman aged 25 or older has bachelor's degree is 22.2
P(NM|B) = 17.9% = 0.179
a) To investigate if the two events 'have a bachelor's degree' and 'have never married' are independent for women aged 25 or older.
Two events are said to be independent if the probability of one of them occurring does not depend on the probability of the other occurring. Two events A and B can be proven mathematically to be independent if
P(A|B) = P(A) or P(B|A) = P(B)
For the two events in question,
P(B) = 0.206
P(NM) = 0.166
P(B|NM) = 0.222
P(NM|B) = 0.179
It is evident that
P(B) = 0.206 ≠ 0.222 = P(B|NM)
P(NM) = 0.166 ≠ 0.179 = P(NM|B)
Since the probabilities of the two events do not satisfy the conditions for them to be independent, the two events are not independent.
b) Probability of a woman aged 25 or older having a bachelor's degree and having never married = P(B n NM)
The conditional probability, P(A|B), is given mathematically as
P(A|B) = P(A n B) ÷ P(B)
P(A n B) = P(A|B) × P(B)
or
= P(B|A) × P(A)
Hence,
P(B n NM) = P(NM n B) = P(B|NM) × P(NM) = P(NM|B) × P(B)
P(B|NM) × P(NM) = 0.222 × 0.166 = 0.036852 = 0.0369
P(NM|B) × P(B) = 0.179 × 0.206 = 0.036874 = 0.0369
Hope this Helps!!!
A. Translation: (x,y) → (x – 5,y); Reflection across y-axis
B. Translation: (x,y) → (x,y + 5); Reflection across x-axis
C. Translation: (x,y) → (x,y – 5); Reflection across y-axis
D. Translation: (x,y) → (x,y + 5); Reflection across y-axis
Answer:
Option D
Step-by-step explanation:
Let's choose a point A to understand the transformations given in the picture attached,
Coordinates of A → (2, -1)
Coordinates of image A' → (-2, 4)
From these coordinates of A and A' we can calculate the vertical shift of point A = [4 - (-1)] = 5 units
Rule used for the translation,
(x, y) → (x, y + 5)
A(2, -1) → A"(2, 4)
Followed by the reflection across y - axis,
Rule for the reflection of a point across y-axis,
(x, y) → (-x, y)
By this rule, A"(2, 4) → A'(-2, 4)
Therefore, There is a translation of 5 units upwards and reflection across y-axis.
Option D will be the answer.
I AM GIVING + 20 POINTS !!!!! PLEASE ANSWER SOON!!!!! Which is NOT a good reason to perform step 1 in the solution shown? equation: 4x = 88 step 1: 4x/4 = 88/4 step 2: x = 22 a. divide by 4, because 4 is a factor of 88. b. dividing 4x by 4 isolates x on one side of the equation. c. dividing is the inverse of multiplying d. dividing both sides by 4 keeps the equation balanced
Answer:
c. dividing is the inverse of multiplying because it doesn't really relate the equation like the others do.
A man 6 ft tall walks at a rate of 6 ft/sec away from a lamppost that is 24 ft high. At what rate is the length of his shadow changing when he is 75 ft away from the lamppost
Answer:
2 ft/s
Step-by-step explanation:
The lamppost is 24 ft. tall, and the man is 6 ft. tall. So, we will use a proportion to find the shadow.
Let s is the length of the base of the lamppost to the shadow while x is the length of the base of the lamppost to the man, so the length of the shadow is s - x.
Using triangular ratio, we have;
24/6 = s/(s - x)
4 = s/(s - x)
We cross multiply and distribute to get;
4s - 4x = s
4s - s = 4x
3s = 4x
s = 4x/3
Taking the derivative of both sides according to time, we have;
ds/dt = (4/3)dx/dt
Now, dx/dt is given as 6 ft/s
So;
ds/dt = (4/3) × 6
ds/dt = 8 ft/s
For us to find the rate of length of the shadow according to time, we recall that the shadow = s - x, so we will just take the derivative of each and subtract. Thus;
d(s - x)/dt = ds/dt - dx/dt
Plugging in the relevant values, we have;
ds/dt - dx/dt = 8 - 6 = 2 ft/s
3x−1−(x+3)=1 PLEASE HELP IDK HOW TO DO IT
Answer:
x = 5/2
x = 2 1/2
x = 2.5
Step-by-step explanation:
3x - 1 - (x + 3) = 1
3x - 1 - x - 3 = 1
2x - 1 - 3 = 1
2x - 4 = 1
2x = 1 + 4
2x + 5
2x = 5
x = 5/2 → 2 1/2 → 2.5 ( can be written in any of these forms depending on what you need to do)
Hope this helped! :)
Answer:
x = 5/2Step-by-step explanation:
3x−1−(x+3)=1
First remove the bracket
That's
3x - 1 - x - 3 = 1
Group the constants at the right side of the equation
That's
3x - x = 1 + 1 + 3
Simplify
We have
2x = 5
Divide both sides by 2
That's
2x / 2 = 5/2
x = 5/2Hope this helps you
There were 35,000 hardback copies of a certain novel sold before the paperback version was issued. From the time the first paperback copy was sold until the last copy of the novel was sold, nine times as many paperback copies as hardback copies were sold. If a total of 448,000 copies of the novel were sold in all, how many paperback copies were sold
Answer:
3,717,000
Step-by-step explanation:
The calculation of paperback copies is shown below:-
Let us assume hardback copies is x, so paperback copies will be 9x
now the equation is
35,000 + x + 9x = 448,000
10x = 448,000 - 35,000
10x = 413,000
[tex]= \frac{413,000}{10}[/tex]
= 41,300
Therefore, the paperback copies are
= [tex]9\times 41,300[/tex]
= 3,717,000
Hence, the paperback copies is 3,717,000
Add and write the fraction or mixed number in its simplest form: 2/5 + 1/4 + 7/10
Answer:
The LCM of 5, 4, and 10 is 20 so we can rewrite this expression as:
8/20 + 5/20 + 14/20 = (8 + 5 + 14) / 20 = 27 / 20 = [tex]1\frac{7}{20}[/tex]
Adding all the three fractions ,
Simplest form is
[tex]1\frac{7}{20}[/tex]
Given :
[tex]\frac{2}{5}+\frac{1}{4} +\frac{7}{10}[/tex]
Step-by-step explanation:
To add all the fractions , the denominators should be same
Lets find out LCD of 5,4 and 10
[tex]5= 1,5\\4=2,2\\10=5,2\\LCD=5\cdot 2\cdot 2=20[/tex]
Least common denominator = 20
Multiply the first fraction by 4 and second fraction by5 and third fraction by 2 to get same LCD 20
[tex]\frac{2}{5}+\frac{1}{4}+\frac{7}{10}\\\frac{8}{20}+\frac{5}{20}+\frac{14}{20}\\\\\frac{8+5+14}{20}\\\frac{27}{20}[/tex]
We cannot simplify the fraction further . So we write it in mixed form
[tex]1\frac{7}{20}[/tex]
Learn more : brainly.com/question/22881654
If you deposit $5,000 into an account that pays 4% simple interest per year, what will the balance be in 6 years?
Answer:
$6,200.
Step-by-step explanation:
Using the Simple Interest Formula, you can calculate how much interest you can get after 6 years.
Interest = 5000 * 0.04 * 6 = 5000 * 0.24 = 1,200
The total interest that you can gain from those 6 years is $1,200.
Add your $5,000 initial deposit, and you will have $6,200 in 6 years.
Hope this helps!
The balance will be $6,200 in 6 years.
What is the simple interest?Simple interest is defined as interest paid on the original principal and calculated with the following formula:
S.I. = P × R × T, where P = Principal, R = Rate of Interest in % per annum, and T = Time, usually calculated as the number of years. The rate of interest is in percentage r% and is to be written as r/100
If you deposit $5,000 into an account that pays 4% simple interest per year.
Here, Principal (P) = $5,000 ,
Rate of Interest in % per annum( R )= 4%, and
Time (T ) = 6 years
Using the Simple Interest Formula, you can calculate how much interest you can get after 6 years.
Simple interest = P × R × T
Simple interest = 5000 × 0.04 × 6
Simple interest = 5000 × 0.24
Simple interest = 1,200
You can earn $1,200 in interest over the duration of those six years.
Now you add a $5,000 Principal amount, and you will have $6,200 in 6 years.
Therefore, the balance will be $6,200 in 6 years.
Learn more about the simple interest here:
brainly.com/question/22621039
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Solve the one-variable equation using the distributive property and properties of equality.
-6(2 + a) = -48
What is the value of a?
O a = -6
O a = -3
O a = 5
Са= 6
Hey there! :)
Answer:
Last choice. a= 6.
Step-by-step explanation:
Starting with:
-6(2 + a) = -48
Distribute the -6:
-6(2) -6(a) = -48
Simplify:
-12 - 6a = -48
Add 12 to both sides:
-12 + 12 - 6a = -48 + 12
-6a = -36
Divide both sides by -6:
a = 6. Therefore, the last choice is correct.
Answer:
a = 6
Step-by-step explanation:
Solve the one-variable equation using the distributive property and properties of equality.
–6(2 + a) = –48
What is the value of a?
a = –6
a = –3
a = 5
a = 6