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stiks02 [169]
2 years ago
7

The radius of a circle is 11 feet. What is the circle's area? Use 3.14 for ​

Mathematics
1 answer:
vovikov84 [41]2 years ago
7 0

Answer:

Formula for area of a circle;

<u>A = πr^2</u>

where pi is 3.14 in this case, and r is the radius squared

Plug in the actual values;

A = 3.14 x 11^2

A = 3.14 x 121

A = 379.94 square feet

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A line that includes the point (-3,-4) and (-4,f ) has a slope of 6. What is the value of f?
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Answer:

f = -10

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Step-by-step explanation:

Formula for slope

m =( y_2 - y_1)/(x _2 - x _1)

m = 6

6 = (y_2 - y_1) / (x _2 - x_1)

Substitute the points

( -3 , -4) ( -4 , f)

x_1 = -3

y_1 = -4

x_2 = -4

y_2 = f

Insert the values into

6 = (y_2 - y_1) / (x_2 - x_1)

6 = (f - (-4))/ ( -4 - (-3)

6 = ( f + 4)/ ( -4 + 3)

Cross multiply

6 ( -4 + 3) = f + 4

6 ( -1) = f + 4

-6 = f + 4

-6 - 4 = f

f = -6 - 4

f = -10

( -3 , -4) ( -3 , f)

The value of f is -10

( -3 , -4) ( -3 , -10)

8 0
3 years ago
Find the values of m and b for this line.
Andrej [43]

Answer:

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Step-by-step explanation:

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2 years ago
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Step-by-step explanation:

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