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1 year ago

PLEASE HELP find the arch shown in red leave your answer in terms of pi

Mathematics

1 answer:

Norma-Jean [14]1 year ago

6 0

Answer:

Answer:1296π

Step-by-step explanation:

As we know,

Area of cicle=πr^2

= π(36)^2

=1296π

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TEST: portional Relationships - Part 1 Which table shows a proportional relationship between x and y? will give brainliest

Artemon [7]

Answer:

First table

Step-by-step explanation:

The first table shows the relationship y=1/7x

The second table doesn't show a relationship due to (6,15)

The third table doesn't show a relationship due to (3,5)

The fourth table doesn't show a relationship due to (2,10)

So the first table is correct

6 0

3 years ago

Choose all the expressions with accurately written descriptions.

valentina_108 [34]

There are two expressions which do not match with the written descriptions to ist right.

Those are:

1) (4x - 3)^2 - 1: see that the written description does not square the difference of 4x and 3

2) 3(5x^2 + 14x + 7): see that the written description tells that 5 is added to the square ox x, which is not what the expression shows.

The other 4 expressions match with the written descriptions.

So, you can choose those other 4 expressions.

4 0

3 years ago

(1 pt) In a study of red/green color blindness, 950 men and 2050 women are randomly selected and tested. Among the men, 89 have

Ivahew [28]

Answer: (0.066,0.116)

Step-by-step explanation:

The confidence interval for proportion is given by :-

$p_1-p_2\pm z_{\alpha/2}\sqrt{\dfrac{p_1(1-p_1)}{n_1}+\dfrac{p_2(1-p_2)}{n_2}}$

Given : The proportion of men have red/green color blindness = $p_1=\dfrac{89}{950}\approx0.094$

The proportion of women have red/green color blindness = $p_2=\dfrac{6}{2050}\approx0.003$

Significance level : $\alpha=1-0.99=0.01$

Critical value : $z_{\alpha/2}=z_{0.005}=\pm2.576$

Now, the 99% confidence interval for the difference between the color blindness rates of men and women will be:-

$(0.094-0.003)\pm (2.576)\sqrt{\dfrac{0.094(1-0.094)}{950}+\dfrac{0.003(1-0.003)}{2050}}\approx0.091\pm 0.025\\\\=(0.09-0.025,0.09+0.025)=(0.066,\ 0.116)$

Hence, the 99% confidence interval for the difference between the color blindness rates of men and women= (0.066,0.116)

4 0

3 years ago

Which graph shows the solution to the following inequality. -5c+2<27

bogdanovich [222]

Answer:

c > -5

Step-by-step explanation:

-5c + 2 < 27

- 2 - 2 Subtract 2 from both sides

-5c < 25 Divide both sides by -5 and flip the sign

c > -5

I graphed the inequality on the graph below.

If this answer is correct, please make me Brainliest!

8 0

3 years ago

At a sporting good store the price of a basketball at $650 during a sale this prices marked down 45% what is the sale price of a

Ne4ueva [31]

The multiplier for decreasing by 45% is 0.55
So you times the multiplier by the price to get your answer:

650 x 0.55 = $357.50

4 0

3 years ago