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3 years ago

Help me pls this is 8th grade math fastest answer gets brainliest show work pls

Mathematics

2 answers:

murzikaleks [220]3 years ago

6 0

Answer:

1. x^11 2. x^7 3. y^12

Step-by-step explanation:

1. you add the exponents together 8+3 = 11 2. you subtract the exponents 9-2=7 3. you multiple the exponents 4x3=12

miskamm [114]3 years ago

3 0

Answer:

1: x ^11

2: y ^12

3: x^ 7

Step-by-step explanation:

In 1 we give the sum

In 2 we give the multiple

In 3 we minus

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Pls answer 17 and 18 I will give brainist

Nataly_w [17]

Answers:

Step-by-step explanation:

17. We need to understand what an indirect proof is. In an indirect proof, you prove a statement by showing that the negation of the statement is false.

The "then" part of the conditional is the "to prove" statement.

In an indirect proof, we assume the opposite of what we want to prove, this is also called proof by contradiction.

So if we need to prove angle A is not an obtuse angle, we will assume it is and then use the proof format to show that angle A cannot be obtuse.

<h2>The answer is B: Assume angle A is an obtuse angle</h2>

18. This question is asking us to use an indirect proof again. The "then" part of the statement is "KL > JK" and is the "to prove" statement.

We need the opposite of this, which would be assuming that KL <u><</u> JK.

<h2>The answer is B: Assume that KL <u><</u> JK</h2><h2>I'm always happy to help :)</h2>

4 0

3 years ago

Read 2 more answers

I just need number 1

Schach [20]

b is the awnser

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A group of science students plans to take an SRS of 25 days in the year to see what proportion of days sampled have a low below

scZoUnD [109]

Answer:

mean = 0.41

SD = $\sqrt (.41(1-.41))/25)$

Step-by-step explanation:

khan told me

6 0

3 years ago

Trucks in a delivery fleet travel a mean of 100 miles per day with a standard deviation of 38 miles per day. The mileage per day

WINSTONCH [101]

Answer:

0.7931 = 79.31% probability that a truck drives between 43 and 141 miles in a day.

Step-by-step explanation:

Problems of normally distributed samples are solved using 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 problem, we have that:

$\mu = 100, \sigma = 38$