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jenyasd209 [6]
3 years ago
7

What is the surface area of a sphere with a radius of 5 meters rounded to the nearest square meter

Mathematics
1 answer:
GrogVix [38]3 years ago
4 0
It would probably be 10 or 15
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There is 1 in. of water in a pool. The water level is increasing at 0.75 in./min . Which linear equation represents the total de
Crank

y = 0.75 + 1 → B

increasing at 0.75 in/min , thus 0.75x after x min

The depth is already at 1 in

y = 0.75x + 1 is the equation.


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Help help help help heeeeeellllp<br>​
ZanzabumX [31]

Step-by-step explanation:

2/5 is closest to 1/2

5/8 is closest to 1/2

1/2 + 1/2 = 1

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What is the economic term used for sustained increase in the price of goods and services?
vova2212 [387]
The economic term used to describe a period of sustained increase in the prices of goods and services is called inflation. Inflation is characterised mainly by a general increase in the prices of goods and services and a reduction in the currency's purchasing power. Hope this helps. Let me know if you need additional help!
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3 years ago
Solve for x. Assume that lines which appear tangent are tangent. X=
Orlov [11]

Answer:

x = 32

Step-by-step explanation:

(whole secant) x (external part) = (tangent)^2

(x+18) * 18 = 30^2

(x+18) * 18 = 900

Divide each side by 18

(x+18) * 18/18 = 900/18

(x+18)  = 50

Subtract 18 from each side

x+18-18 = 50-18

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5 0
3 years ago
Read 2 more answers
At the beginning of a population study, the population of a large city was 1.65 million people. Three years later, the populatio
Maksim231197 [3]

Answer:

C. 1.8027

Step-by-step explanation:

The exponential population growth model is given by:

P(t) = P_{0}e^{rt}

In which P(t) is the population after t years, P_{0} is the initial population and r is the growth rate.

At the beginning of a population study, the population of a large city was 1.65 million people. Three years later, the population was 1.74 million people.

This means that P_{0} = 1.65, P(3) = 1.74

Applying this to the equation, we find r. So

P(t) = P_{0}e^{rt}

1.74 = 1.65e^{3r}

e^{3r} = \frac{1.74}{1.65}

e^{3r} = 1.0545

Applying ln to both sides

\ln{e^{3r}} = \ln{1.0545}

3r = \ln{1.0545}

r = \frac{\ln{1.0545}}{3}

r = 0.0177

So

P(t) = 1.65e^{0.0177t}

What would be the population of the city 5 years after the start of the population study?

This is P(5).

P(t) = 1.65e^{0.0177t}

P(5) = 1.65e^{0.0177*5}

P(5) = 1.8027

So the correct answer is:

C. 1.8027

6 0
3 years ago
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