can you help out with this ​

Answer:

20x² - 10x - 30

Step-by-step explanation:

Height = 5

Width = 4x² - 2x - 6

Area of rectangle = length × breadth

Area of triangle = height × width

Area = 5 × (4x² - 2x - 6)

Area = 20x² - 10x - 30

Area of the rectangle is 20x² - 10x - 30

Answer:

1/2

Step-by-step explanation:

The slope is given by

m = (y2-y1)/(x2-x1)

   = (6 - -1)/(12 - -2)

    = (6+1)/(12+2)

    7/14

   1/2

Step-by-step explanation:

Step 1:  Find the slope

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

[tex]m=\frac{6-(-1)}{12-(-2)}[/tex]

[tex]m=\frac{6+1}{12+2}[/tex]

[tex]m=\frac{7}{14}[/tex]

[tex]m=\frac{1}{2}[/tex]

Answer: The slope is 1/2

Answer:

a) cylinder

b) Tetrahedron

Step-by-step explanation:

Thank you

(a) Cylinder is the figure formed by the given net of two circles and rectangle.

(b) Tetrahedron is the figure formed by given net of triangles.

(a) The net made up of two circles and a rectangle represents a shape known as a cylinder.

The two circles form the top and bottom faces of the cylinder, and the rectangle wraps around the circles to form the curved surface.

(b) the triangles are connected with their bases adjacent to each other, forming a closed figure, the resulting shape is a tetrahedron (a specific type of pyramid with four triangular faces).

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Answer:

-4( -2x^2 -3x+4)

Step-by-step explanation:

8x^2+ 12x-16​

Factor out a 4 from each term

4 (2x^2 +3x-4)

We can also factor out a negative 4

-4( -2x^2 -3x+4)

it is the first one -4(-2x^2-3x+4)

Answer:

The length of the arc is 221π/18 ft or 38.55 ft

Step-by-step explanation:

Given

Subtended angle, θ = 17π/18

Radius, r = 13 ft

Required

Length of the arc.

When an angle is given in radians, the length of the arc is calculated using the formula below

Length = rθ

By substituting

Length = 13 * 17π/18

Length = 221π/18

The answer can be left in this form.

But for simplification purpose, I'll solve further.

Taking π as 3.14

Length = 221 * 3.14/18

Length = 693.94/18

Length = 38.552222

Length = 38.55 ft (Approximated).

Hence, the length of the arc is 221π/18 ft or 38.55 ft

Answer:

x = 14

Step-by-step explanation:

[tex] \sin \: 30 \degree = \frac{7}{x} \\ \frac{1}{2 } = \frac{7}{x} \\ x = 7 \times 2\\ x=14[/tex]

Answer:

B) x = 1/4y²

Step-by-step explanation:

I graphed x = 1/4y² below and it matched the graph that you gave.

Answer:

1) 3 and 4

2) B

Step-by-step explanation:

sorry if i am wrong

Step-by-step explanation:

Simple if there are 2 watches defective from 250 then 2000 ÷ 250 = 8

So total 10 watches are defective

Answer:

16 are defective

Step-by-step explanation:

2000/250=8

8*2=16

Answer:

3 miles

Step-by-step explanation:

5-2=3

Answer: 64 years old

Step-by-step explanation:You subtract 2082 by 2018 to get the sum of 64

Answer:

64/63

Step-by-step explanation:

It depends on what day it is in 2082 however the calculation should be simple...

2082-2018=64

If it is before September 12th in 2082, then they would be 63 because their 64th birthday would be on September 12th!

Hope this helps!

Answer:

6

Step-by-step explanation:

Answer:

6 red 2 yellow 3 blue so the answer is 6

Step-by-step explanation:

Answer:

Grothendieck used his remarkable capacity for abstract thinking to make advances across the entire spectrum of mathematics. He developed unifying concepts that could be applied to a variety of avenues of mathematical thought, including number theory, category theory, functional analysis and topology

Step-by-step explanation:

Answer:

yes I agree with teacher

Step-by-step explanation:

I I think this because 1 people that have a phone and a computer are the highest group and two becauseit seems that most of the class has a phone it also seems that most of the class has a computer

Answer:

sorry I don't see the grap or the function

Answer:

-2, 6

Hope this helps :)

Answer:

17.94

I think you would do 897 divided by 50. Tell me if im wrong.

To find the number of steps between each landing in an 897-step stairwell with 50 landings, divide the total steps by the number of segments, resulting in approximately 17 to 18 steps per segment.

Step by Step Solution:

To determine how many steps are between each landing in an 897-step stairwell with 50 landings, follow these steps:

Therefore, each segment will have approximately 17 or 18 steps.

Answer:

False

Step-by-step explanation:

Please have a look at the attached photo

As we know the shapes of the horizontal cross-sections of the cylinder  are circles congruent with the circle at the base and at the top of the cylinder because they are parallel to each other.

Answer:

Step-by-step explanation:

70

Answer:

it is 70 hahaha thanks

Step-by-step explanation:

Answer:

Range: 13 and 15        Mean: 247 and 286

Step-by-step explanation:

Answer:

it is the blue box (not teal)

64 x 7/4 is less than 64 because 7/4 > 1

Hope this helps :)

Answer:

50

Step-by-step explanation:

A six-sided fair number cube has numbers 1, 2, 3, 4, 5, and 6 on each side.

so, 300/6= 50

For each number it is predicted that it will roll 50 times.

Answer:

Sample Response: A number cube has six sides. The probability of landing on any of the numbers is equal. The theoretical probability of rolling a 6 is 1/6. I expect a 6 to be rolled (1/6)(300), or 50 of 300 times.

Step-by-step explanation:

Answer:

E. 1 nickel

Step-by-step explanation:

2 ten cent= 20 cent

a quarter is 25 cent

25-20=5

a nickel is 5 cent

Answer:

E.) nickle (5 cents)

Step-by-step explanation:

You give 25 cents (value of a quarter)

2 ten-cent candies is equal to 20 cents:

[tex]2*10=20\\10+10=20[/tex]

Find the difference between what you paid and the actual amount:

[tex]25-20=5[/tex]

You paid an extra 5 cents. Find the answer that has the same value as 5 cents:

A. ) 1 dime

This is wrong because a dime is worth 10 cents, not 5

B.) 1 nickel 2 pennies

this is wrong because a nickle is worth 5 cents and a penny is worthy 1 cent. Add the values, and the change would be 7 cents.

C.) 2 dimes

This is wrong because a dime is worth 10 cents, so 2 dimes would be 20 cents.

D.) 2 nickles

This is wrong because a nickle is worth 5 cents, so 2 nickles would be 10 cents.

E.) 1 nickle

This is correct because a nickle is worth 5 cents, the exact change you should receive.

:Done

Let x represent the number of times Joe should expect the spinner to land on green.

We have been Joe has a spinner. The probability of landing on green is 3/8. Joe spins the spinner 184 times. We are asked to find the number of times Joe should expect the spinner to land on green.

We will use proportions to solve our given problem.

[tex]\frac{\text{Green}}{\text{Total}}=\frac{3}{8}[/tex]

Upon substituting our given values in above equation, we will get:

[tex]\frac{x}{184}=\frac{3}{8}[/tex]

[tex]\frac{x}{184}\cdot 184=\frac{3}{8}\cdot 184[/tex]

[tex]x=3\cdot 23[/tex]

[tex]x=69[/tex]

Therefore, Joe should expect the spinner to land on green 69 times.

Answer:

15

Step-by-step explanation:

b/c .15 tims 15 =2.25

p.s can  u mark me brainliest if i got it right plz?

The number of items carol can buy is 225.

Multiplication or division by a numerical factor, selection of the correct number of significant figures, and unit conversion are all steps in a multi-step procedure.

Given that Carol bought some items at a variety store. All the items were the same price, and she bought as many items as the price of each item in cents. The items cost 10 cents, she would have bought 10 of them.) Her bill was $2.25.

The number of the items will be calculated as below:-

1 dollar = 100 cents

2.25 dollars = 2.25 x 100 cents

2.25 dollars = 225 cents.

It is given that the number of items bought is equal to the number of cents.

Therefore, the number of items carol can buy is 225.

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Answer:

a: 5

b: -3

c: -1

d: 1

Step-by-step explanation:

Given the matrix:

A = [4   12

       1   10]

its determinant is: 4*10 - 1*12 = 28

the inverse of A is:

1/28*[10  -12

        -1    4]    

[10/28  -12/28

-1/28    4/28]    

A^-1 = [5/14  -3/7

          -1/28  1/7]

a: 5

b: -3

c: -1

d: 1

Given the matrix:

A = [4   12

      1   10]

its determinant is: 4(10) - 1(12) = 28

Now

the inverse of A is:

1 ÷ 28 × [10  -12

       -1    4]    

[10 ÷ 28  -12 ÷ 28

-1 ÷ 28    4 ÷ 28]    

A^-1 = [5÷  14  -3 ÷ 7

         -1÷  28  1 ÷  7]

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Answer:

Option D or 3

Step-by-step explanation:

It says so on edge 2020. I thought it was option c, but it is D. Can anyone tell me whyyyyyy.

The solution is, the scale factor of this dilation is option D. 3.

A scale factor is when you enlarge a shape and each side is multiplied by the same number. This number is called the scale factor. Maps use scale factors to represent the distance between two places accurately.

here, we have,

given that,

Line segments X Y and X prime Y prime.

From the point of dilation, the distance to point Y is 3 and the distance to point X is 2.

The distance from point Y to Y prime is 6, and the distance from X to X prime is 4.

Hence, The solution is, the scale factor of this dilation is option D. 3.

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Yes, the Normal condition for finding confidence intervals is met because np = 18 and n(1 − p) = 57, both of which are greater than 10.

The following information should be considered:

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The Normal condition for constructing confidence intervals is met if both np and n(1-p) are greater than 10. In Candice's case, both conditions are met, so she can proceed with constructing a confidence interval for the proportion of freshmen who like sports drinks.

In order to determine if the Normal condition for constructing confidence intervals is met, we need to check if both np and [tex]\( n(1-p)[/tex] are greater than 10. Here n is the sample size and p is the sample proportion.

For Candice's sample:

Now, calculate np and n(1-p):

Both values (18 and 57) are greater than 10, so the Normal condition is met. Therefore, it is appropriate to proceed with constructing a confidence interval for the proportion of freshmen who like sports drinks.

Answer:

a = 2

b = -1

7(2y^2 + (-1)y - 3) =

14y^2 - 7y -21

Step-by-step explanation: