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2 years ago

4. the dollars you are paid and the number of hours you work

Mathematics

1 answer:

Karolina [17]2 years ago

6 0

The number of hours you work is dependent and so so

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An aquifer holds 146,000 cubic feet of water. Water exits through a well at a steady rate of 500 cubic feet per day, and the aqu

m_a_m_a [10]

Answer:

The value of x = 100 ft^3/ day

Step-by-step explanation:

We need to look at what amount of water comes in and what amount of water leaves

What comes in: x ft^3/ day

What leaves : 500x ft^3/ day

We start with 146 000 ft^3

Water in tank = what we start with + what comes in - what leaves

water in tank = 146000 + x*d - 500*d where d is the number of days

After 365 days , the tank has 0 ft^3 of water

0 = 146000 + x*365 - 500*365

Multiply

0 = 146000 + 365x - 182500

Combine like terms

0 = -36500+365x

Add 36500 to each side

36500 = 36500-36500+365x

36500 = 365x

Divide by 365

36500/365 = 365x/365

100=x

The value of x = 100

8 0

2 years ago

Read 2 more answers

A basketball player makes 70% of the free throws he shoots. Suppose that he tries 15 free throws.

Volgvan

Answer:

a.) .95

b.) The expected number of baskets is 10.50.

c.) 1.7748

Step-by-step explanation:

a.) This is a binomial distribution as there are two possibilities: makes a free throw or doesn't. This means that you can use the binomial function on a calculator to figure out the answer. Use the binomial CDF function on a calculator and the number of trials=15, probability of success=.7, lower bound=0, upper bound=7. Once you have evaluated the answer, .0500, it will need to be subtracted from1, as you want everything not included in this section. The answer to part a is thus 1-.0500=.95.

b.) The expected value is calculated by taking the total number of shots and multiplying it by the probability of making the shot: 15×.7=10.5 shots.

c.) The standard deviation of a binomial distribution can be calculated by the formula $\sqrt{(sample size)(probability)(1-probability)}$ . Plugging in the numbers you get $\sqrt{(15)(.7)(.3)}$ =1.7748.

8 0

2 years ago

Select all of the values for a that would make the inequality 2x > 10 true.

babunello [35]

Answer:

Step-by-step explanation:

2x > 10 Divide by 2

2x/2 >10/2

x > 5

x cannot be 5 or anything smaller.

In English, x >5 reads as x must be greater than 5. (It can't be equal to 5 because 5 is not greater than 5)

The only two items that work are

8 which is greater than 5 and

30 which is also greater than 5

6 0

2 years ago

Heather spent $138 on shirts. Fancy shirts cost $26 and plain shirts cost $15. If she bought a total of 7, then how many of each

Jlenok [28]

She bought about 3.5

3 0

2 years ago

Solve for t. t + 19 = 45) it will give u 29 points if u help me!

Oksi-84 [34.3K]

Hi there!

Answer:

t=26

*The answer must have a positive sign.*

Step-by-step explanation:

First, you subtract by 19 from both sides of an equation.

$t+19-19=45-19$

Then, you subtract by the numbers from left too right.

$45-19=26$

Final answer is t=26

I hope this helps you!

Have a nice day! :)

-Charlie

8 0

2 years ago