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3 years ago

What is 10-10×10+10=

Mathematics

2 answers:

Sergeu [11.5K]3 years ago

8 0

Answer:

The answer is -80

Dmitry [639]3 years ago

4 0

10-10•10+10=-80
The answer would be negative eighty

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kari74 [83]

Answer:

-3.2

Step-by-step explanation:

Do you have to work this out on paper because I just used a calculator but just add 3.1 + -6.3.

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3 years ago

A cube has a volume of 125 cubic inches. What is the length of each edge?

Bingel [31]

The formula for the volume of a cube is V = a^3.

We know the volume is 125 cubic inches.

125 = a^3

Take the third square root

5 = a

The length of each edge is 5 inches

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2 years ago

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Karolina [17]

Answer:

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Step-by-step explanation:

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3 years ago

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Nonamiya [84]

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2 years ago

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A polymer is manufactured in a batch chemical process. Viscosity measurements show that it is approximately normally distributed

PilotLPTM [1.2K]

Answer: (751.05, 766.95)

Step-by-step explanation:

We know that the confidence interval for population mean is given by :-

$\overline{x}\pm z*\dfrac{\sigma}{\sqrt{n}}$ ,

where $\sigma$ =population standard deviation.

$\overline{x}$ = sample mean

n= sample size

z* = Two-tailed critical z-value.

Given : $\sigma= 20$

n= 42

$\overline{x}=759$

We know that from z-table , the two-tailed critical value for 99% confidence interval : z* =2.576

Now, the 99% confidence interval around the true population mean viscosity :-

$759\pm (2.5760)\dfrac{20}{\sqrt{42}}\\\\=759\pm (2.5760)(3.086067)\\\\=759\pm7.9497=(759-7.9497,\ 759+7.9497)\]\\=(751.0503,\ 766.9497)\approx(751.05,\ 766.95)$

∴ A 99% confidence interval around the true population mean viscosity : (751.05, 766.95)

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3 years ago