3 years ago

Need help on answering number 12.

Mathematics

1 answer:

Greeley [361]3 years ago

5 0

A) 9.06 is the square root of 82
b) a. he evaluated 82/2 instead of evaluating the square root of 82

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Matt bought 8 pie molds at a cost of $0.67 per mold. He also bought 8 pre-

kupik [55]

Answer:

$5.36

Step-by-step explanation:

multiply 8 by .67

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2 years ago

Solve this equation. the answers are listed below

madreJ [45]

The answer to the equation is 6

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3 years ago

The GCD(a, b) = 9, the LCM(a, b)=378. Find the least possible value of a+b.

denis-greek [22]

$\mathrm{gcd}(a,b)=9\implies9\mid a\text{ and }9\mid b\implies9\mid a+b$

which means there is some integer $k$ for which $a+b=9k$ .

Because $9\mid a$ and $9\mid b$ , there are integers $n_1,n_2$ such that $a=9n_1$ and $b=9n_2$ , and

$\mathrm{lcm}(a,b)=\mathrm{lcm}(9n_1,9n_2)=9\mathrm{lcm}(n_1,n_2)=378\implies\mathrm{lcm}(n_1,n_2)=42$

We have $42=2\cdot3\cdot7$ , which means there are four possible choices of $n_1,n_2$ :

1, 42
2, 21
3, 14
6, 7

which is to say there are also four corresponding choices for $a,b$ :

9, 378
18, 189
27, 126
54, 63

whose sums are:

387
207
153
117

So the least possible value of $a+b$ is 117.

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3 years ago

A man who can row in still water at 5 mph heads directly across a river flowing at 6 mph. At what speed does he drift downstream

Rashid [163]

7.8 mph... Hope it helps

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2 years ago

Read 2 more answers

Let X be a continuous random variable with probability density function: fX(x) = ( 3 4 x (2 − x) 0 ≤ x ≤ 2 0 otherwise. (a) Dete

nikklg [1K]

Answer:

attached below

Step-by-step explanation:

Given : FX (x) = 3/4x (2-x) 0 ≤ x ≤ 2

a) Calculate the cumulative distribution function FX

Cdf =

attached below is the detailed solution

b) Let Y = √ X. determine CDF

attached below

c) calculate PDF

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2 years ago