3 years ago

Do these problems represent a function y^2 = 49 - X^2 y=x^2+36

Mathematics

1 answer:

Readme [11.4K]3 years ago

3 0

Yes they represent a function

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Sunni is riding a raft down a stream that is moving at a rate of 75 feet per minute how far downstream does she travel in 5 minu

sineoko [7]

Answer: 375 feet

Step-by-step explanation:

From the question, we are given the information that Sunni is riding a raft down a stream that is moving at a rate of 75 feet per minute.

To calculate how far downstream that she can travel in 5 minute, we have to multiply the distance covered per minute by 5. This will be:

= 75 feet × 5

= 375 feet

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3 years ago

Evaluate the expression.

Viktor [21]

3x(6^12/6^10)

3x(6^12-10)

3x(6^2)

3x(36)

108x

Answer is c

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4 years ago

What is the quotient of the synthetic division problem below, written in polynomial form?

Alex17521 [72]

Answer:

<em>The answer is (B)</em>

Step-by-step explanation:

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2 years ago

Aiden's bill for lunch at a restaurant is $14.50, and he wants to leave a 18% tip.

zhannawk [14.2K]

Answer:

Tip: $2.61

Total: $17.11

Step-by-step explanation:

tip = total cost * rate of tip

Add the tip to the original bill, that's the total.

I hope this helped.

4 0

2 years ago

A researcher wishes to estimate, with 9090% confidence, the proportion of adults who have high-speed Internet access. Her es

Sunny_sXe [5.5K]

Answer: a) Required minimum sample size= 219

b) Required minimum sample size= 271

Step-by-step explanation:

As per given , we have

Margin of error : E= 5% =0.05

Critical z-value for 90% confidence interval : $z_{\alpha/2}=1.645$

a) Prior estimate of true proportion: p=28%=0.28

Formula to find the sample size :-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.28(1-0.28)(\dfrac{1.645}{0.05})^2\\\\=218.213856\approx219$

Required minimum sample size= 219

b) If no estimate of true proportion is given , then we assume p= 0.5

Formula to find the sample size :-

$n=0.5(1-0.5)(\dfrac{z_{\alpha/2}}{E})^2\\\\=0.25(\dfrac{1.645}{0.05})^2\\\\=270.6025\approx271$

Required minimum sample size= 271

8 0

3 years ago