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2 years ago

Solve the equation for x. –x + 10 – 8x + 2x = 17 A. 11 B. –11 C. 1 D. –1

Mathematics

1 answer:

Luden [163]2 years ago

6 0

Answer:

Step-by-step explanation:

take whole numbers to same side

subtract and add the x values

divide both side my the coeffecient of z

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How many eighths are equal to one half

Paul [167]

Answer:

4/8

Step-by-step explanation:

If you simplify it you get 1/2

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2 years ago

PLEASE HELP ME. THIS IS DUE TODAY

MakcuM [25]

I think it’s b it only makes since

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2 years ago

Alona [7]

Answer:

The lower limit is 75.04

The upper limit is 78.96

Step-by-step explanation:

From the question we are told that

The sample size is $n = 25$

The sample mean is $\= x = 77$

The standard deviation is $\sigma = 5$

Given that the confidence level is 95% then the level of significance is mathematically represented as

$\alpha = (100 - 95)\%$

$\alpha = 0.05$

The critical value for $\frac{\alpha }{2}$ obtained from the normal distribution table is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

=> $E = 1.96* \frac{5 }{\sqrt{25} }$

=> $E = 1.96$

The 95% confidence interval is mathematically represented as

$\= x -E < \mu < \= x +E$

=> $77 - 1.96 < \mu < 77 + 1.96$

=> $75.04 < \mu < 78.96$

7 0

2 years ago

A triangle has sides with lengths of 5 meters, 6 meters, and 8 meters. Is it a right triangle?

Sever21 [200]

Answer:

No, it is not a right triangle

Step-by-step explanation:

A scalene right triangle comprised of integers must have the same ration as 5:4:3, and 5:6:8 is not it.

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1 year ago

6/7 Find the slope of the line.

Feliz [49]

The slope, if you have a graph, is the angle the line is going down so look at this graph:

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2 years ago

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