3 years ago

Check inequality m> -2

1 answer:

7 0

For this there is a dotted line going through -2 on the graph and the shading is on the right side of the grid so -2,-1, and every positive number.

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A person gets on and off a bathroom scale four times. The four readings (in pounds) are 148, 151, 150, and 152. Each time after

Ganezh [65]

Answer:

See explanation below

Step-by-step explanation:

Since each time after the person gets off the scale, the reading is 2 lb the person's weight must be near the mean of

148-2, 151-2, 150-2, 152-2; that is to say, near the mean of 146, 149, 148, 150 = (146+149+148+150)/4 = 148.25

We could estimate the uncertainty as the standard error SE

$\bf SE=\frac{s}{\sqrt{n}}$

where

s = standard deviation of the sample

n = 4 sample size.

Computing s:

$\bf s=\sqrt{\frac{(146-148.25)^2+(149-148.25)^2+(148-148.25)^2+(150-148.25)^2}{4}}=1.479$

So, the uncertainty is 1.479/2 = 0.736

It is not possible to estimate the bias, since it is the difference between the true weight and the mean, but we do not know the true weight.

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3 years ago

How do u work out what fraction is equal to 1/8

I am Lyosha [343]

If the number on the bottom of the fraction is 8 times the size
of the number on top, then the fraction is equal to 1/8 .

Examples:

100 / 800

20 / 160

8 / 64

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3 years ago

HELP PLEASE

Alex Ar [27]

Answer: 1/5 x = 10 * 1/5. 1/5x = 2. x = 2*5 = 10

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4 years ago

Read 2 more answers

-|7(-5)+7(-8)|-|-6(-7)|

sweet-ann [11.9K]

Answer:

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Step-by-step explanation:

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3 years ago

Laura retired from her job recently, and she has saved about $427,595.00 over the course of her career. She plans to withdraw

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Step-by-step explanation:

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