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2 years ago

Angie has 5 less cds than david

Mathematics

2 answers:

maxonik [38]2 years ago

7 0

The answer is the third one

Hope this helps! :)

Mariana [72]2 years ago

3 0

The answer is a=5-d

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for a coloring activity, Mr. Smith needs 15 boxes of crayons for 25 students. how many boxes does Mrs. Jones need for 30 student

sergejj [24]

18 boxes of crayons for 30 students

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3 years ago

I only need help with the second part of this question. please can you help?

matrenka [14]

13,822 to one significant figure is 10,000

623 to one significant figure is 600

14 to one significant figure is 10

10,000 times 600 = 6,000,000

6,000,000/10 = 600,000

4 0

2 years ago

Find the radius of a sphere whose surface area is 154cm².with stepss

worty [1.4K]

Answer:

THIS IS YOUR ANSWER:

$area \: of \: spere \: = 4\pi \: r {}^{2} \\ 154cm {}^{2} = 4 \times \frac{22}{7} \times r {}^{2}$

$\frac{154 \times 7}{4 \times 22} = r {}^{2} \\ r {}^{2} = 12.25 \\$

$r = \sqrt{12.25} \\ r = 3.5cm$

✍️HOPE IT HELPS YOU ✍️

7 0

2 years ago

Read 2 more answers

− 4 + 8 [ 4 + 3 ( ( − 7 )^2 + 2 ) ]

yawa3891 [41]

I looked it up on google it is 1252

8 0

2 years ago

A production manager at a wall clock company wants to test their new wall clocks. The designer claims they have a mean life of 1

Harman [31]

The probability that the mean clock life would differ from the population mean by greater than 12.5 years is 98.30%.

Given mean of 14 years, variance of 25 and sample size is 50.

We have to calculate the probability that the mean clock life would differ from the population mean by greater than 1.5 years.

μ=14,

σ= $\sqrt{25}$ =5

n=50

s orσ =5/ $\sqrt{50}$ =0.7071.

This is 1 subtracted by the p value of z when X=12.5.

So,

z=X-μ/σ

=12.5-14/0.7071

=-2.12

P value=0.0170

1-0.0170=0.9830

=98.30%

Hence the probability that the mean clock life would differ from the population mean by greater than 1.5 years is 98.30%.

Learn more about probability at brainly.com/question/24756209

#SPJ4

There is a mistake in question and correct question is as under:

What is the probability that the mean clock life would differ from the population mean by greater than 12.5 years?

5 0

1 year ago