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2 years ago

Find the length of the missing side of the right triangle 15 and 9 Round your answer to the nearest tenth, if necessary.

Mathematics

1 answer:

mamaluj [8]2 years ago

5 0

Answer:

17.5

Step-by-step explanation:

a^2+b^2=c^2

15^2+9^2=306^2

square root of 306= 17.49

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Which of the following is a statistical question? A. How many students know how much they weigh? B. What is Kaycee's weight? C.

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Answer: D

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3 years ago

A computer repairman makes $25 per hour. Which equation models the situation?

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2 years ago

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Suppose that prior to conducting a coin-flipping experiment, we suspect that the coin is fair. How many times would we have to f

BabaBlast [244]

Answer:

153 times

Step-by-step explanation:

We have to flip the coin in order to obtain a 95.8% confidence interval of width of at most .14

Width = 0.14

ME = $\frac{width}{2}$

ME = $\frac{0.14}{2}$

ME = $0.07$

$ME\geq z \times \sqrt{\frac{\widecap{p}(1-\widecap{p})}{n}}$

use p = 0.5

z at 95.8% is 1.727(using calculator)

$0.07 \geq 1.727 \times \sqrt{\frac{0.5(1-0.5)}{n}}$

$\frac{0.07}{1.727}\geq sqrt{\frac{0.5(1-0.5)}{n}}$

$(\frac{0.07}{1.727})^2 \geq \frac{0.5(1-0.5)}{n}$

$n \geq \frac{0.5(1-0.5)}{(\frac{0.07}{1.727})^2}$

$n \geq 152.169$

So, Option B is true

Hence we have to flip 153 times the coin in order to obtain a 95.8% confidence interval of width of at most .14 for the probability of flipping a head

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2 years ago

Can someone pls help me<br> Pls

lora16 [44]

Answer:

help u with what? Say what u need

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2 years ago

X/3-4=-7<br><br> please help me solve

Vanyuwa [196]

In order to solve this we need to get x by itself on one side.

We need o start by adding across the 4 so that we get:

x/3 = -7 + 4 = -3

We then need to multiply both sides by 3 to get a singular x:

x = -3 * 3 = -9

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2 years ago

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