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3 years ago

Help me with this i only have 10 mis left

Mathematics

1 answer:

Tpy6a [65]3 years ago

4 0

Answer:

It's definitely C

Step-by-step explanation:

Boston is 35 degrees as well but the lowest temperature of Seattle is 45

You might be interested in

Which polynomial can be factored using the binomial theorem?

Galina-37 [17]

Answer:

Step-by-step explanation:

I think the one you want is the last one, but I've never called it that.

21x^2 + 147x + x^3 + 343

x^3 + 343 is a cubic binomial. It factors into (x + 7) (x^2 - 7x + 49)

21x(x + 7) + (x + 7)(x^2 - 7x + 49)

(x + 7) [ 21x - 7x + x^2 + 49)

(x + 7) [x^2 + 14x + 49]

(x + 7) ( x+7)^2

(x + 7)^3

It's the only answer that does factor. There must be a simpler way of doing it, but this will give you the right answer.

4 0

3 years ago

Find the area of a 3/4 circle with a raidius of 6

Whitepunk [10]

Answer:

84.82275

Step-by-step explanation:

The formula for Area of a circle is

$A=\pi r^{2} \\A=\pi 6^{2} \\A=113.097$

That would be for the entire circle, now divide that number by .75 to get 3/4 of the circle.

84.82275

6 0

3 years ago

I WILL GIVE BRAINLIST PLZZZ 50PTS

makvit [3.9K]

You didn’t give us enough info but I will say C.

7 0

3 years ago

Read 2 more answers

I need someone to explain this step by step. I have a test very soon.

8090 [49]

Answer:

So you are going to multiply what is in the parentheses by two it will become 6x + 4.This will be for the second statement box. And the next will be 6x=18 and that will be the subtraction property or equality. For the last it would be x=3 and that would be the division property of equality.

Step-by-step explanation:

8 0

3 years ago

Katrina wants to estimate the proportion of adults who read at least 10 books last year. To do so, she obtains a simple random

kicyunya [14]

Answer:

D. Matthew's estimate will have the smaller margin of error because the larger sample size more than compensates for the higher level of confidence

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence interval $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error is the division by 2 of the upper level of the interval $\pi + z\sqrt{\frac{\pi(1-\pi)}{n}}$ by the lower level $\pi - z\sqrt{\frac{\pi(1-\pi)}{n}}$ , so this is

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

Both Katrina and Matthew are working with the same population, so $\pi$ is equal for both.

Katrina

Katrina wants to estimate the proportion of adults who read at least 10 books last year. To do so, she obtains a simple random sample of 100 adults and constructs a 95% confidence interval. This means that she has $z = 1.96$ and $n = 100$ . So her margin of error is