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Aleksandr-060686 [28]
3 years ago
11

Find the area of the circle. Use 3.14 for pi

Mathematics
2 answers:
Zigmanuir [339]3 years ago
7 0

Answer:

b) 153.86 m^2

Step-by-step explanation:

Area=Pi x R^2

Area=3.14 X 7^2

Area=3.14 x 49

Area=153.86

klemol [59]3 years ago
7 0

<em>d. 38.47 </em>m^{2}<em></em>

<em>circumference is 21.99114858.</em>

<em>diameter is 7.000000002.</em>

<em>radius is 3.500000001.</em>

<em>area is 38.48451003.</em>

<em></em>

<h3><em>Hope I helped you!</em></h3><h3><em>Succes!</em></h3>
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How do you do this math
Basile [38]

Answer: y = -3x - 6

Step-by-step explanation:

One way to write a <u>linear equation</u> is with slope-intercept form.               Slope-intercept form is y = mx + b, where m is the slope, and b is the              y-intercept.

Thus, the equation is y = -3x - 6

Hope it helps :) and let me know if you are confused anywhere.

8 0
2 years ago
Read 2 more answers
In 1990 the average family income was about $ 39 , 000 , and in 2010 it was about $ 70 , 768 . Let x = 0 represent 1990, x = 1 r
iren2701 [21]

Answer:

<em />f(x) = 1588.4x + 39000<em />

f(15) = 62826

Step-by-step explanation:

Given

In 1990; Income= $39000

In 2010; Income= $70768

Solving (a): An equation in form of f(x) = ax + b

First, we need to determine the slope, a

a = \frac{y_2 - y_1}{x_2 - x_1}

Taking y as income and x as year index.

When x = 0; y = 39000

When x = 20; y = 70768

Substitute these values in the above formula

a = \frac{70768 - 39000}{20 - 0}

a = \frac{31768}{20}

a = 1588.4

Next, is to determine the formula using:

y - y_1 = a(x - x_1)

<em>Considering :When x = 0; y = 39000, we have</em>

<em />y - 39000 = 1588.4(x - 0)<em />

<em />y - 39000 = 1588.4x<em />

<em>Make y the subject of formula</em>

<em />y = 1588.4x + 39000<em />

<em />

<em>Express y as a function of x</em>

<em />f(x) = 1588.4x + 39000<em />

Solving (b): Income in 2005

<em>In 2005, x = 15</em>

So:

f(x) = 1588.4x + 39000 becomes

f(15) = 1588.4 * 15 + 39000

f(15) = 62826

3 0
3 years ago
Compute 7 2/3 + 8 1/2 + 4 1/6. which is the sum in simplified form\
kotegsom [21]
hope I'm right but either 2 or 4 i can kinda go either way
6 0
3 years ago
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How many eigths are in 1/4 and how many tenths are in1/2
Hitman42 [59]
There are 2/8 in 1/4 and 5/10 in 1/2 
6 0
3 years ago
Is this correct please explain
uysha [10]

Answer:

79°

Step-by-step explanation:

since this figure goes around completely, the sum would be 360°

1 and 3 are equal, so you would multiply 101 by 2

101 × 2 = 202

subtract 202 from 360

360 - 202 = 158

4 and 2 are equal, so divide 158 by 2

158 ÷ 2 = 79

so angle 4 = 79°

3 0
2 years ago
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