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4 years ago

9

A piece of rope 94.2 inches long will enclose a circular child’s wading pool. What is the diameter

of the pool?

1 answer:

Elis [28]4 years ago

4 0

The circumference of a circle is pi times D. So, 94.2/pi = 29.98 or about 30 in

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Helpppp a girl outtt i will give brainlest

Ivenika [448]

Answer:

Y= 40

Step-by-step explanation:

I know the y equals 40 because I used

$a {}^{2} + b {}^{2} = c {}^{2}$

But for z and x I got stuck, so I hope I helped you a little to move forward with this problem.

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7 0

3 years ago

How much of each snack should hunter purchase to satisfy this senerio

bagirrra123 [75]

B is the correct answer

3 0

3 years ago

The owners of an eyeglass store claim that they fill customers' orders, on average, in 60 minutes with a standard deviation of 1

melomori [17]

By applying z-score formula we got that if a reporter determines a mean order time of 63 minutes then value o Z is 1.19

<h3>What is standard deviation?</h3>

Standard deviation is a number used to tell how measurements for a group are spread out from the average (mean), or expected value

Here given that

The owners of an eyeglass store claim that they fill customers' orders, on average, in 60 minutes with a standard deviation of 15. 9 minutes. Based on a random sample of 40 orders, a reporter determines a mean order time of 63 minutes

mean=μ=60

standard deviation=σ=15.9

number of sample=n=40

$\bar{x}=63 \\$

Now we can calculate z by z-score formula as

$z=\frac{\bar{x}-\mu}{\frac{\sigma}{\sqrt{n}}} \\\\&=\frac{63-60}{\frac{15 \cdot 9}{40}} \\ \\=\frac{3}{2.5140} \\ \\=1.19\end{aligned}$

By applying z-score formula we got that if a reporter determines a mean order time of 63 minutes then value o Z is 1.19

To learn more about standard deviation visit :brainly.com/question/12402189

5 0

2 years ago

Find the quotient of 9 divided by 5/8 .

MissTica

9 / 5/8 =

9/1 / 5/8 =

9/1 * 8/5 = 72/5 = 14 2/5

5 0

3 years ago

Which of the following can be the side lengths of a triangle?

kogti [31]

<span>In a triangle the sum of two sides is always greater than the third side.

</span><span>A:12,9,21
</span><span>12+9 = 21
21 = 21 </span>⇒ no

<span>B:7,6,12
</span>7+6 = 13
13 > 12 ⇒ yes

<span>C:3,8,14
</span>3+8 = 11
11 < 14 ⇒ no

<span>D:23,13,37
</span>23+13= 36
36 < 37 ⇒ no

Answer: <span>B:7,6,12</span>

7 0

4 years ago