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3 years ago

I dont understand this question.Help?

Mathematics

1 answer:

Maurinko [17]3 years ago

4 0

the first step Andre made was

2x+6=3x-8

or, -x+6=-8

And the first step Diego made was

2x+6=3x-8

or, +6=3x-2x

or, 6=x-8

...

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Which of the following is the lowest common denominator for the fractions 5/6 and 3/4? A)4 B)12 C)15 D)24

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It would be 12 the answer

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3 years ago

Taron unpacked 47 boxes of light bulbs for the discount warehouse. Each box contained 6 bulbs. How many bulbs were in the 47 box

Zolol [24]

Answer:

282 bulbs

Step-by-step explanation:

Find how many bulbs there were by multiplying 47 by 6

47(6)

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So, in the 47 boxes, there were 282 bulbs

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3 years ago

Find the number of positive integral solutions of ABC=45.

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4 years ago

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Ahat [919]

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3 years ago

A manufacturer of televisions subjects the equipment to a comprehensive testing process for all essential functions before the t

Vikki [24]

Answer:

The value is $P(X \ge 9) = 0.9138$

Step-by-step explanation:

From the question we are told that

The probability of passing the test is $p = 0.95$

The sample size is n = 10

Generally the distribution of the comprehensive testing of equipment follows a binomial distribution

i.e

$X \~ \ \ \ B(n , p)$

and the probability distribution function for binomial distribution is

$P(X = x) = ^{n}C_x * p^x * (1- p)^{n-x}$

Here C stands for combination hence we are going to be making use of the combination function in our calculators

Generally the probability that at least 9 pass the test is mathematically represented as

$P(X \ge 9) = P(X = 9 ) + P(X = 10 )$

=> $P(X \ge 9) = [^{10}C_9 * (0.95)^9 * (1- 0.95)^{10-9}] + [^{10}C_{10} * (0.95)^{10} * (1- 0.95)^{10-10}]$

=> $P(X \ge 9) = [0.3151] + [0.5987]$

=> $P(X \ge 9) = 0.9138$

7 0

3 years ago