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3 years ago

Point A is (-4,8) and point M is (1,7.5) what is point B

Mathematics

2 answers:

Tanya [424]3 years ago

8 0

Sorry man, but I'm gonna need some sort of picture to give you the answer.

Gelneren [198K]3 years ago

7 0

Answer:(6,7)

Step-by-step explanation:

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The wheels ona bike have a diameter of 26 inches. How many full revolutions will the wheels need to make to travel 100 feet?

kirill115 [55]

Answer:

82 revolutions Step-by-step explanation:

One revolution will be the circumference of the tire, so multiply pi (3.1416) times the diameter (26 in.) to get 81.68 in. then round it up to 82.

7 0

3 years ago

Read 2 more answers

Rounding factors to their greatest place results in this

devlian [24]

Answer:

I think a polynomial... could be wrong though....

Step-by-step explanation:

7 0

3 years ago

What is the simplified form of the following expression? 2√27+√12-3√3-2√12

LiRa [457]

Answer:

√3

Step-by-step explanation:

The given expression to be simplified is

$2 \sqrt{27}+\sqrt{12}-3\sqrt{3}-2 \sqrt{12}$

but

$2 \sqrt{27}=2\sqrt{9 \times 3}=2 \times \sqrt{9}\times \sqrt{3}=2 \times 3 \times\sqrt{3}=6 \sqrt{3}$

$\sqrt{12}=\sqrt{4\times3}= \sqrt{4}\times \sqrt{3}=2\sqrt{3}$

Since √12=2√3,this implies that,

$2\sqrt{12}=2\times2\sqrt{3}=4 \sqrt{3}$

Therefore,

$2 \sqrt{27}+\sqrt{12}-3\sqrt{3}-2 \sqrt{12}=6\sqrt{3}+2\sqrt{3}-3 \sqrt{3} -4\sqrt{3}$

$=(6+2-3-4)\sqrt{3}$

$=\sqrt{3}$

The simplified form of ,

$2 \sqrt{27}+\sqrt{12}-3\sqrt{3}-2 \sqrt{12}$ is √3

8 0

3 years ago

Suppose a sample of 80 with a sample proportion of 0.58 is taken from a

Anvisha [2.4K]

Answer:

99.7% confidence interval is $[0.4162,0.7437]$

Step-by-step explanation:

The formula for a confidence interval for a population proportion is $CI=\hat{p}\pm z^*\sqrt{\frac{\hat{p}(1-\hat{p})}{n} }$ where $\hat{p}$ is the sample proportion, $n$ is the sample size, and $z^*$ is the critical score for the desired confidence level.

We are given a sample size of $n=80$ and a sample proportion of $\hat{p}=0.58$ . Our critical score for a 99.7% confidence level would be $z^*=normalcdf(0.9985,0,1)=2.9677$

Therefore, the approximate 99.7% confidence interval for the population parameter is $CI=\hat{p}\pm z^*\sqrt{\frac{\hat{p}(1-\hat{p})}{n} }=0.58\pm 2.9677\sqrt{\frac{0.58(1-0.58)}{80} }=[0.4162,0.7438]$

So we are 99.7% confident that the true population proportion is contained within the interval $[0.4162,0.7437]$

3 0

3 years ago

Somebody please help. And be fr cause I’ll give that brainilest or whatever it’s called but please be the right answer.

bearhunter [10]

130 you multiply the left side by 13 to get the right side.

8 0

3 years ago