What is the area of the trapezoid?
8 m
110 m
12 m
80 m2
96 m2
100 m2
120 m2​

Answer:

Step-by-step explanation:

43feet

Answer: => means “implies” or “if and then”

p,q,r are statements

Step-by-step explanation:

The length between is the number 9 , just add 29 to 20 which is just 9 more numbers

Answer:

71.57% of student heights are lower than Darnell's height

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

[tex]\mu = 150, \sigma = 20[/tex]

Darnell has a height of 161.4 centimeters. What proportion of student heights are lower than Darnell's height?

This is the pvalue of Z when X = 161.4.

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{161.4 - 150}{20}[/tex]

[tex]Z = 0.57[/tex]

[tex]Z = 0.57[/tex] has a pvalue of 0.7157

71.57% of student heights are lower than Darnell's height

Answer:

0.7157

Step-by-step explanation:

Darnell's height is 161.4 - 150 = \goldD{11.4}161.4−150=11.4161, point, 4, minus, 150, equals, start color #e07d10, 11, point, 4, end color #e07d10 relative to the mean.

This is \dfrac{\goldD{11.4}}{20} = \blueD{0.57}  

20

11.4

​  

=0.57start fraction, start color #e07d10, 11, point, 4, end color #e07d10, divided by, 20, end fraction, equals, start color #11accd, 0, point, 57, end color #11accd standard deviations relative to the mean. This is Darnell's z-score.

Hint #22 / 4

We want to find the proportion of student heights below a z-score of \blueD{0.57}0.57start color #11accd, 0, point, 57, end color #11accd:

Answer:

I think the answer is 3 for 1 length side. And in you need 12 for both length sides. So the total is 36 and one side is 12. Since it's a rectangle,you now know two side lengths since they are the same,just opposite from each other. So 12 + 12 = 24. You do 36 – 24 because you need to get the total number for length which is 12. 12 divided by 2 is 6 which is one length side. You can check by doing 6 + 6 + 12 + 12 and you get 36.

Hope this helped!

Can I get brainliest?

Answer:

2450

Step-by-step explanation:

First you will divide;

200÷4=50

Then you multiply;

50×9=450

Last you add;

2000+450=2450

Hope this helps :D

Answer:

4949 is your answer

Step-by-step explanation:

Answer:

57 miles

Step-by-step explanation:

Answer:

57 miles

Step-by-step explanation:

divide 199.5/3.5 and you will get 57 miles

Answer:

a^2 +a -6

Step-by-step explanation:

(a + 3)(a - 2)

FOIL

first: a*a = a^2

outer: -2*a = -2a

inner: 3*a =3a

Last : -2*3 = -6

Add them together

a^2 -2a+3a -6

Combine like terms

a^2 +a -6

Answer:

a² + a - 6

Step-by-step explanation:

(a + 3)(a - 2) = a² - 2a + 3a - 6 = a² + a - 6

This question is incomplete and it lacks the attached diagram of the square based pyramid. Find attached to this answer, the square based pyramid.

Correct Question

A concrete planter is formed from a square-based pyramid that was inverted and placed inside a cube.

A. What is the slant height of the pyramid?

B. What is the surface area of the composite figure?

HINT: The surface area consists of lateral faces of the inside of the inverted pyramid and the remaining 5 faces of the cube.

C. How many cubic yards of concrete are needed to make the planter?

Answer:

A. The slant height of the pyramid = 2.24 yards.

B. The surface area of the composite figure = 12.94 square yards.

C. The cubic yards of concrete are needed to make the planter = 2.67 cubic yards.

Step-by-step explanation:

A. What is the slant height of the pyramid?

To calculate the Slant height of a pyramid we make use of the Pythagoras Theorem which is given as:

a² + b² = c²

Where a = Height of the square pyramid represent by h

b = radius of the square pyramid represented by r

c = Slant height of the square pyramid represented by s

Therefore, we have

h² + r² = s²

Looking at the attached diagram, we are given the side length = 2 yards.

The radius of the square based pyramid = side length ÷ 2

= 2÷ 2 = 1 yard.

The height of a square based pyramid = 2 yards

Since , h² + r² = s²

The slant height of the square pyramid is calculated as :

√h² + r² = s

√(2² + 1²) = s

√5 = s

s = 2.24 yards

B. What is the surface area of the composite figure?

We were given hints in the question that the the surface area consists of lateral faces of the inside of the inverted pyramid and the remaining 5 faces of the cube.

Step 1

We find the Lateral area of the faces of the insides of the inverted pyramid

We have 4 faces, Hence,

The formula is given as

a × √( a² + 4h²

a = 2 yards

h = 2 yards

So, = 2 × √( 2² + 4 ×2²

The Lateral area of the faces = 8.94 square yards.

Step 2

Area of the 5 faces of the cube

= a²

Where a = side length = 2 yards

= 2²

= 4 square yards.

Step 3

Therefore, surface area of the composite figure = 8.94 square yards + 4 square yards

= 12.94 square yards.

C. How many cubic yards of concrete are needed to make the planter?

This is calculated by find the Volume of the Square based pyramid.

The formula is given as :

V = (1/3)a²h

Where a = side length = 2 yards

h = height of the square based pyramid = 2 yards

V = 1/3 × 2² × 2

V = 2.67 cubic yards

The number of possible combinations of 8 objects taken 6 at a time is 28. Then the correct option is D.

Combinations are the way of selecting objects or elements from a group of objects or collections, in such a way the order of the objects does not matter.

The number of possible combinations of 8 objects taken 6 at a time.

Then the number of the combination is given as

[tex]\rm ^8C_6 = \dfrac{8!}{(8-6)! 6!}\\\\\\^8C_6 = \dfrac{8 \times 7 \times 6!}{2 \times 1 6!}\\\\\\^8C_6 = 7 \times 4\\\\\\^8C_6 = 28[/tex]

More about the combination link is given below.

https://brainly.com/question/11732255

#SPJ1

Answer:

5/7

Step-by-step explanation:

Billy experienced a rate of catfish to toral fish of 10/14. This is 5/7. So if this rate continues, he could expect the probability of catching a catfish to be : 5/7

Answer:

y/x = 1 got it right on edg

Step-by-step explanation:

Answer:

y/x = 1  on E2020

Step-by-step explanation:

Have a Great Day :)

Answer:

5 minutes

Step-by-step explanation:

Do a proportion

440/75= 1760/x

cross multiply

440x=1760(75)

simplify

132000/440

Hope this helps

Answer: [tex]y=3x[/tex]

Step-by-step explanation:

parallel lines have the same slope so you can have any line that is y=3x plus a number thats not 4

EXAMPLES:

[tex]y=3x-3[/tex]

[tex]y=3x+5[/tex]

[tex]y=3x-2[/tex]

Answer:

[tex]-\frac{15}{4}[/tex]

Step-by-step explanation:

To find the slope or the gradient of a line you have to utilise the formula

[tex]\frac{y2-y1}{x2-x1}[/tex]

Y₂ = -7

Y₁ = 8

X₂ = 7

X₁ = 3

So,

[tex]\frac{-7-8}{7-3}[/tex]

→ Simplify

[tex]-\frac{15}{4}[/tex]

By using the given points, we will see that the slope is -15/4.

If we know that a given line passes through two known points (x₁, y₁) and (x₂, y₂), then the slope can be written as:

[tex]s = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Here the line passes through the points (3, 8) and (7, -7).

Using the above formula, we can see that the slope is:

[tex]s = \frac{-7 - 8}{7 - 3} = \frac{-15}{4}[/tex]

If you want to learn more about linear equations, you can read:

https://brainly.com/question/4074386

There are 118 adult tickets sold

This is because 354/3 =118

and 118+118=236

236 are the child tickets

therefore 118 are the adult tickets.

Hope this helped!

The total number of adult ticket sold is 118 tickets.

Let's write "x" to represent how many adult tickets were sold.

The information provided indicates that there were twice as many student tickets sold as adult tickets. The quantity of student tickets sold can therefore be stated as 2x.

There were 354 total tickets sold, which includes both student and adult tickets.

We may construct an equation based on the total number of tickets to resolve this issue:

x + 2x = 354

Combining comparable variables

3x = 354

x = 354 / 3

x = 118

118 adult tickets were consequently sold.

Learn more on linear equation here: https://brainly.com/question/12788590

#SPJ2

Answer:39?

Step-by-step explanation:

Answer:

43

Step-by-step explanation:

+ Total age of 5 people: 37 x5 = 185

+ Total age of 6 people (when 1 person enters the room): 38 x 6 = 228

+ The age of the person who enter the room is: 228 - 185 = 43 age

Answer:

1. B

2. A

3. B

4. ???

5. A

6 ???

7. I can't see it

Step-by-step explanation:

Answer:

r = 26

Step-by-step explanation:

C = 2 π r

163.28 = 2 (3.14) (r)

163.28 / 2 / 3.14

26 = r

Answer:

26 yards

Step-by-step explanation:

2πr=163.28

2×3.14×r=163.28

r=163.28÷6.28=26 yards

Answer:

[tex]\dfrac{1}{6}[/tex]

Step-by-step explanation:

Let A be the event of getting an odd number.

P(A) be the probability of getting an odd number.

Total odd numbers here are 6 i.e. [tex]\{1,3,5,7,9,11\}[/tex]

Here, total numbers in the game are 12 i.e [tex]\{1,2,3,....,12\}[/tex].

Formula for probability of an event E can be observed as:

[tex]P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}[/tex]

[tex]P(A) = \dfrac{6}{12}\\\Rightarrow \dfrac{1}{2}[/tex]

Let B be the event of getting 11.

P(B) be the probability of getting 11.

Total number of possible cases is 1.

[tex]P(B) = \dfrac{1}{12}[/tex]

[tex]P(A \cap B)[/tex] is the probability that we get 11 and an odd number.

Possible number of cases = 1

[tex]P(A\cap B) = \dfrac{1}{12}[/tex]

P(B/A) is the probability that we get an 11 given that it is an odd number.

[tex]P(B/A) = \dfrac{P(A \cap B)}{P(A)}\\\Rightarrow \dfrac{\dfrac{1}{12}}{\dfrac{1}{2}}\\\Rightarrow \dfrac{1}{6}[/tex]

Hence, P(B/A) = [tex]\dfrac{1}{6}[/tex]

Answer:

The probability in fraction is [tex]\frac{1}{12}[/tex].

Step-by-step explanation:

Total number of outcomes is = 12

Now we have to find the probability that spun number is 11.

That means favorable outcome is 1.

In this case, the probability can be determined by dividing the number of favorable outcomes by the total outcome. Accordingly, the total outcomes are 12 and favorable outcome is 1.  

[tex]\text{P(The spun number is 11)}= \frac{\text{Favorable outcomes}}{\text{total outcomes}} \\\text{P(The spun number is 11)}= \frac{1}{12} \ (in \ fraction)\\\text{P(The spun number is 11)} = 0.083 \ (in \ decimal)[/tex]

Answer:

y=x-4

Step-by-step explanation:

The general scaffold for the slope intercept form is y=mx+b, where m is the slope and b is the y intercept. You can rearrange the equation that you are given like this:

2x-2y=8

-2y=-2x+8

y=x-4

Hope this helps!

Answer:

Rearrange the equation so that it is written in slope intercept form:

y=mx+b.

2x+2y=8.

2y=−2x+8.

y=−x+4.

Answer:

Step-by-step explanation:

the distributive properrty of 6 + 30

6(1 + 5)

Answer:

center = [tex](-4,8)[/tex]

Radius = 7 units

Step-by-step explanation:

Given: Equation of circle is [tex]x^2+y^2+8x-16y+31=0[/tex]

To find: Radius and center of the circle

Solution:

Equation of circle is [tex](x-a)^2+(y-b)^2=r^2[/tex]

Here, [tex](a,b)[/tex] is the center and r is the radius.

[tex]x^2+y^2+8x-16y+31=0\\\left [ x^2+2(4)x+4^2 \right ]+\left [ y^2-2(8)y+8^2 \right ]+31=4^2+8^2[/tex]

Use formula [tex](u+v)^2=u^2+v^2+2uv[/tex]

[tex](x+4)^2+(y-8)^2=16+64-31\\(x+4)^2+(y-8)^2=49=7^2[/tex]

On comparing this equation with equation of circle,

center = [tex](-4,8)[/tex]

Radius = 7 units

Answer:

center: (4,-4)

Radius: 9

Step-by-step explanation:

KHAN ACADEMY

Complete question:

Noah drew a triangle so that all the sides are 5 inches long. He wants to draw a new triangle, but increase the length of each side by x inches. The perimeter of the new triangle is 24 inches. Find the value of x and length of the new side.

Answer:

x = 3 inches

The length of the new sides of the triangle is 8 inches

Step-by-step explanation:

If each of the sides of the original triangle is 5 inches, then it is an equilateral triangle.

Let the length of each of the side of the new triangle be, A, B and C.

A = 5 + x

B = 5 + x

C = 5 + x

A + B + C = 24

(5 + x) + (5 + x)  + (5 + x) = 24

15 + 3x = 24

3x = 24 -15

3x = 9

x = 9/3

x = 3

A = B = C = 5 + x = 5 + 3 = 8 inches

The length of the new sides of the triangle is 8 inches

Answer:

see below

Step-by-step explanation:

Experimental means what actually happened

P(odd) = (number of 1 + number of 3 + number of 5) / total

           = (10+8+8) / 50

           = 26/50

           = 13/25 = 52%

Theoretical means  what we expect to happen

P (odd) = (number of 1 + number of 3 + number of 5) / total

             =(1+1+1)/6

             =1/2 = 50%

We rolled an odd just a little more than the expected amount of times

Answer:

yes

Step-by-step explanation:

Answer:

[tex] x^2 + \frac{1}{49} =1 [/tex]

And solving for x we got:

[tex] x^2 = 1- \frac{1}{49}[/tex]

[tex] x^2 = \frac{48}{49}[/tex]

And taking square root we got:

[tex] x = \sqrt{\frac{48}{49}}= \frac{\sqrt{48}}{7} = \frac{4\sqrt{3}}{7}[/tex]

Step-by-step explanation:

For this case we have the following point given [tex] P(x , -1/7)[/tex]

And we want to find the value of x, since P lies on the unitray circle if we find the distance from P to the center of the unitary circle (0,0) we need to get 1. Using the definition of Euclidean distance that means:

[tex] d = \sqrt{(x -0)^2 +(-1/7 -0)^2}=1[/tex]

And if we square both sides of the last equation we got:

[tex] x^2 + \frac{1}{49} =1 [/tex]

And solving for x we got:

[tex] x^2 = 1- \frac{1}{49}[/tex]

[tex] x^2 = \frac{48}{49}[/tex]

And taking square root we got:

[tex] x = \sqrt{\frac{48}{49}}= \frac{\sqrt{48}}{7} = \frac{4\sqrt{3}}{7}[/tex]

Answer:

- 4

Step-by-step explanation:

The number of points earned by Anthony is the sum of all the individual points earned from the 5 throws. Considering that he had -6 on 2 throws, 10 from one throw, 2 and the -4 from the final set of throws, the total is equivalent to

= -6 - 6 + 10 + 2 -4

= -4

Anthony earned a total of - 4 from the 5 throws.

Answer:

Students to attend camp = 56 x 44/100 = 24.64

Students to attend camp = 25

Step-by-step explanation:

Answer:

≈25 students

Step-by-step explanation:

Find out 44% of 56:

(44*56)÷100=

2464÷100=

24.64

So about 25 students out of 56 said yes, they were going to attend summer camp.

Answer:

8

Step-by-step explanation:

f(x)=5x^2−3x+8

Let x=0

f(0) = 5(0) -3(0) +8

     = 8