is my answer correct or nah if not pls fix I have 4 min

Answer:

diameter=14

radius =14/2=7

area =πr²

hope it helps

Step-by-step explanation:

Area of circle = 2π r²

diameter is 14 cm so radius will be 7 cm

= 2 × 22/7 × 7 × 7

= 44 × 7

= 308 cm²

Answer:

1. 2

2. 5.2

3. (c * 2) - 3= a

4. ($85 + $35 * h)

Step-by-step explanation:

1. |4−2| (simplified)

= |2|

=2

2. 2a^2 = 5.2

(22)(1.3)

=(4)(1.3)

=5.2

(2.6 - (2*1.3))=

5.2 - (2.6 - 2.6) = 5.2

3. (c * 2) - 3= a

4. ($85 + $35 * h)

=================================================

Explanation:

Your teacher wants you to find the slope

m = slope

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

m = (-1-2)/(3-9)

m = -3/(-6)

m = 1/2

----------------

Extra info:

We can think of the slope as

slope = rise/run

and furthermore,

Essentially we subtract the corresponding y coordinates together, subtract the x together (in the same order as the y values), then divide the differences.

Answer:

The ordered pair (-2,5) reflected over the y-axis is (2,5)

Step-by-step explanation:

Answer:

2 cookies each

Step-by-step explanation:

79/9 ÷ 4 = 79/9 x 1/4 = 79/36 = 2.2

Answer:

? = 43.8°

Step-by-step explanation:

cos ? = 13/18 = 0.7222

? = 43.8°

Answer:

sorry need the points

Step-by-step explanation

A triangle has a total degrees of 180, so you add 55 and 53 to get 108

then you subtract that from 180 to get 72. 72 is your answer

Answer:

72 degrees

Step-by-step explanation:

First of all, you should know that each triangle equals to 180 degrees. So just add 55 + 53 which equals 108. Then you just subtract 108 from 180 (180-108) which equals to 72 degrees.

Therefore, the third missing angle measure is 72 degrees.

Hope this helps! :)

Answer:

Cora

Daniel

Daniel

Step-by-step explanation:

Forming equation for Daniel's saving from the plot:

Slope, m :

m = y2 - y1 / x2 - x1

m = (300 - 150) / (3 - 1)

m = 150 /2

m = 75

Intercept, c ; value of y when, x = 0

c = 75

Daniel's equation :

y = 75x + 75

Initial amout is described by intercept

Cora's intercept = 100

Daniel's intercept = 75

Rate is described by the slope

Daniel = 75

Cora = 65

So, Daniel is saving at a faster rate ; 75 to Cora's 65

Amount after 6 months :

After 6 months

y = 75*6 + 75 = $525

Cora:

y = 65x + 100

y = 65*6 + 100 = $490

Answer:

The smallest number is 7

Step-by-step explanation:

Using simultaneous equation;

x+y = 18.....(1)

4x-y = 17.....(2)

from equation (1)..

x+y = 18

y = 18-x...(3)

substitute y into equation (2)

4x-y = 17

4x-(18-x) = 17

4x-18+x = 17

4x+x = 17+18

5x = 35

x = 35÷5

x = 7

substitute x into equation (3)

y = 18-x

y = 18-7

y = 11

Therefore; x=7

y=11

11+7=18

(4×7)-11=17

the smallest number is 7

Answer:

348 cents per pack

Step-by-step explanation:

$3.48         348 cents

----------- or ----------------- = 348 cents per pack

1 pack          1 pack

Answer:

804.25

Step-by-step explanation:

The area of a circle = pi(r)^2

Given the diameter, we can find the radius by dividing the diameter in half.

r=16

pi(16)^2 = 804.25

Answer:

803.84 OR 256 pi

Step-by-step explanation:

Ok!

Step 1:

The area of a circle is Pir^2. (Sorry it’s pi r squared, I don’t have the pi symbol or the exponent function on my iPad.)

R is radius. Remember, radius is half the diameter.

32/2=16.

Step 2:

Do 16^2.

You should get 256.

Step 3:

Multiply 256 by Pi. Pi is 3.14. You should get 803.84.

Step 4:

803.84 should be the answer, I THINK (not sure) you can also write your answer as 256 pi. Depends on what your teacher wants. Hope this helps! Next time you can search up how to find the area of a circle, there are lots are tutorials!

Answer:

130 students

Step-by-step explanation:

12/30 have pets

12:30

2:5

2/5 × 325= 130

130 students will be the correct answer

Answer:

y = -x - 1   &  y = -3x - 1

Step-by-step explanation:

Answer: 1,1 for he first one and 1/4 on the second

Step-by-step explanation: rise/ run

Answer:

A

Step-by-step explanation:

correct on edge

Answer:

A) [-1,1]

Step-by-step explanation:

The function of y=cos⁻¹(x) has a domain of [-1,1] and a range of [0,π]. Observe the graph.

Answer:

It is -0.465 when you add it to the nearest thousandth

Step-by-step explanation:

Answer:

It is actually C, just took it and D was wrong

Step-by-step explanation:

Answer:

Hope that helps! :)

-Aphrodite

Step-by-step explanation:

Answer:

hope it is helpful to you

Answer:

f(-7) = 18

Step-by-step explanation:

Add AbS in calculator

or

2(-7) = -14 (AbS) -> 14

-4 -> (AbS) = 4

14+4 = 18

Answer:

Step-by-step explanation:

(2+x)(2-x)

2(2-x)+x(2-x)

4-2x+2x-x^2

4-x^2

Answer:

G: 135

Step-by-step explanation:

The plot has a trend of increasing every year by some number so in year 1980 the participants should be more than 120 (because 1972 has 120 people) to follow the given trend. Thus, best answer is G = 135 countries.

Answer:

C: Experimental

Step-by-step explanation:

This is an experimental study because you have two separate groups (the control and experimental groups) you are comparing and manipulating the results.

Answer:

hope this will help you more...good luck

Answer:

10 for number 1

2. 106

Step-by-step explanation:

each time you go your moving by one

Answer:

3, 4, 5

Step-by-step explanation:

3² + 4² = 5²

=> 9 + 16 = 25

=> 25 = 25

Answer:

Side 1: 6

Side 2: 8

Side 3: 10

6² + 8²

36 + 64

√100 = 10

Side 1: 3

Side 2: 4

Side 3: 5

3² + 4²

9 + 16

√25 = 5

The sum of the square of the base and height should be equal to the square of the third number.

Answer: -188

Step-by-step explanation: i had to subtract 3 63 times and i got -188