3 years ago

What is the center and radius of the circle?

Mathematics

2 answers:

Setler79 [48]3 years ago

5 0

I believe the answer should be B. Because of the standard circle equation.

aliya0001 [1]3 years ago

5 0

Answer:B: Center (-4,5)

Radius:11

Step-by-step explanation:Happy to help:)

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Farmer bob's square plot ofland is slowly eroding away. Worried about the future of his farm. Farmer Bob measures the rate of er

kow [346]

Answer:

Option A.

Step-by-step explanation:

Area of a square is

$A=x^2$ .... (1)

where, x is side length.

The length of each side of his square plot is decreasing at the constant rate of 2 feet/year.

$\dfrac{dx}{dt}=2$

It is given that bob currently owns 250,000 square feet of land.

Fist find the length of each side.

$A=250000$

$x^2=250000$

Taking square root on both sides.

$x=500$

Differentiate with respect to t.

$\dfrac{dA}{dt}=2x\dfrac{dx}{dt}$

Substitute x=500 and $\frac{dx}{dt}=2$ in the above equation.

$\dfrac{dA}{dt}=2(500)(2)$

$\dfrac{dA}{dt}=2000$

Farmer bob is losing 2,000 square feet of land per year.

Therefore, the correct option is A.

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2 years ago

Juan is a teacher who has an annual salary of 65,798. how has to pay an income tax of 5%. What is the amount of state income tax

charle [14.2K]

He has to pay $3,289.90

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2 years ago

Zoe and hannah share tips in the ratio 3:7 last week zoe recieved £24 how much did hannah recive last week

torisob [31]

Answer:

Step-by-step explanation:

Zoe and Hannah shared tips in the ratio

3:7

Last week Zoe received $24

Hence the amount received by Hannah can be calculated as follows

3/7= 24/x

168= 3x

x= 168/3

= 56

Hence Hannah received €56

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3 years ago

Which of the following World Record times from Track and Field is least

Gre4nikov [31]

I think the answer is B. Or A.

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3 years ago

Read 2 more answers

What does this mean?

vladimir1956 [14]

It’s 31 because 375 divided by 12 is 31

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3 years ago