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2 years ago

9

A man shares his money between his sons, Cyrus and Peter in the ratio 4 : 9. If Cyrus' share is GH¢100, find the amount shared a

nd Peter's share.

1 answer:

statuscvo [17]2 years ago

6 0

Answer:

peter will get 225

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Chapter 7, Section 7.2, Question P9 The process for manufacturing a ball bearing results in weights that have an approximately n

bogdanovich [222]

a. Let $X$ be a random variable representing the weight of a ball bearing selected at random. We're told that $X\sim\mathcal N(0.15,0.005^2)$ , so

$\mathrm P(X$

where $Z\sim\mathcal N(0,1)$ . This probability is approximately

$\mathrm P(Z$

b. Let $X_i$ be a random variable representing the weight of the $i$ -th ball that is selected, and let $Y$ be the mean of these 4 weights,

$Y=\dfrac{X_1+X_2+X_3+X_4}4$

The sum of normally distributed random variables is a random variable that also follows a normal distribution,

$X_1+X_2+X_3+X_4\sim\mathcal N(4\cdot0.15,4\cdot0.005^2)$

so that

$Y\sim\mathcal N(0.15,0.005^2)$

Then

$\mathrm P(Y$

c. Same as (b).

8 0

2 years ago

Lesha wants to prove that the measures of the 3 angles in a triangle always have a sum of 180°. She decided to prove

levacccp [35]

Answer:

A

Step-by-step explanation:

Reflecting it across the lines will bring the triangle on to the other triangles. This will show that when the triangle goes under a transformation such as reflection, the angles will stay the same.

5 0

2 years ago

Factor the GCF: 28a^3b^4 + 20a^2b^2 − 16ab^3.

9966 [12]

D. 4ab(7a^2b^3+5a-4b^3)

7 0

2 years ago

3/4x + 17 = 23 what does x equal

stepladder [879]

3/4x+17=23
-17 -17
3/4x=6
/ 3/4 / 3/4
x=8
I hope I helped! ♥

6 0

2 years ago

Read 2 more answers

Find the Mean Absolute Deviation.<br> 12<br> 5<br> 7<br> 8<br> 15<br> 15<br> 2<br> 8

patriot [66]

The mean would be 7 I think I am not sure

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2 years ago