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Tems11 [23]
3 years ago
8

Simplify the following. Express your answer with positive exponents

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
8 0

On simplification, the expression is 15b^10/a^5

Step-by-step explanation:

  • Step 1: Use the laws of exponents to solve this. a^m · a^n = a^m+n and a^m ÷ a^n = a^m-n.
  • Answer is shown in attachment.

                                                                 

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It would be C, because there are 700,000 people and with A, B, and D there are more people than there are the original population.
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How many solutions does the equation −5a + 5a + 9 = 8 have?
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Answer: the answer will be none

Step-by-step explanation:

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A new car battery is sold with a two-year warranty whereby the owner gets the battery replaced free of cost if it breaks down du
Mariana [72]

Answer:

4.01% probability that the battery will break down during the warranty period

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

\mu = 45, \sigma = 12

a. What is the probability that the battery will break down during the warranty period

Warranty of 2 years = 24 months. So this is the pvalue of Z when X = 24.

Z = \frac{X - \mu}{\sigma}

Z = \frac{24 - 45}{12}

Z = -1.75

Z = -1.75 has a pvalue of 0.0401

4.01% probability that the battery will break down during the warranty period

7 0
3 years ago
Which inequality represents this situation? The number of students, s, who ride in a bus is less than 30. A. S < 30 B. S >
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Answer:

A.s<30

Step-by-step explanation:

We are given that

Number of students who ride in a bus=s

We have to find the inequality which represents the given situation.

According to question

s<30

A.s<30

It is true.

B.s>30

It is false because s is less than 30

C.s\geq 30

It is false because s<30

D.s\leq 30

It is false because s<30

Option A is true.

7 0
2 years ago
7. log(x+3)(2x + 3) +log(x+3)(x + 5) = 2
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Answer:67

Step-by-step explanation: the first one is the best. that’s why

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3 years ago
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