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iris [78.8K]
2 years ago
5

Five hundred yards of fence is to be used to enclose a rectangular area next to a straight river. The river bank acts as one sid

e of the rectangle, and the fence is used to make the other three sides of the rectangle. Suppose the width w in yards of the rectangle is along the river bank.
Mathematics
1 answer:
fenix001 [56]2 years ago
3 0

Answer:

the requirements are missing:

  1. express the height of the rectangle in terms of w
  2. express the area of the rectangle in terms of w

1) the height of the rectangle is:

w + h + h + w = 500 + w

2w + 2h = 500 + w

2h = 500 + w - 2w = 500 - w

h = (500 - w) / 2 = 250 - 0.5w

2) the are of the rectangle is:

w x h = w x (250 - 0.5w) = 250w - 0.5w²

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3 years ago
My teacher saysni should know this but i dont. 2+2=?
yanalaym [24]

Answer: 4

Step-by-step explanation:

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6 0
2 years ago
Read 2 more answers
A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n indepe
Mila [183]
<h3>Answer:  0.1319</h3>

==========================================

Work Shown:

P(x) = (_n C_x)*(p)^x*(1-p)^{n-x}\\\\P(14) = (_{15} C_{14})*(0.8)^{14}*(1-0.8)^{15-14}\\\\P(14) = 15*(0.8)^{14}*(0.2)^{1}\\\\P(14) \approx 0.13194139533312 \\\\P(14) \approx \boldsymbol{0.1319} \\\\

Side note: you can use the nCr formula to compute _{15} C_{14}; however, it's much quicker to use the shortcut formula _{n} C_{n-1} = n. You can also use Pascal's Triangle to find the value of _{15} C_{14}

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2 years ago
In which situation could the quotient of -24 divided by 3 be used to answer the question?
tresset_1 [31]

The situation in which the quotient of -24 divided by 3 be used to answer the question is;

  • Julia withdrew a total of $24 from her bank account over 3 days. She withdrew the same amount each day. By how much did the amount in her bank account change each day?

<h3>Algebra</h3>

Check all options:

A. The temperature of a substance decreased by 24∘C per minute for 3 minutes. What was the overall change of the temperature of the substance?

Temperature decrease = 24°C per minutes × 3 minutes

= 72°C decrease in temperature

B. A football team lost 24 yards on one play, then gained 3 yards on the next play. How many total yards did the team gain on the two plays?

Loss = -24 yards

Gain = 3 yards

Total gain = -24 + 3

= -21 yards

C. Julia withdrew a total of $24 from her bank account over 3 days. She withdrew the same amount each day. By how much did the amount in her bank account change each day?

Amount withdrawn per day = -$24 / 3

= -$8 per day

Change in her account per day = $8

D. A cookie jar contains 24 cookies. Each child receives 3 cookies. How many children are there?

Number of children = 24 cookies / 3 cookies

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Learn more about algebra:

brainly.com/question/4344214

#SPJ1

7 0
2 years ago
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