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3 years ago

M+8=8+m A. true(communicative property) B. True(associative property) C. False

Mathematics

1 answer:

Alja [10]3 years ago

6 0

Answer:

Step-by-step explanation:

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LekaFEV [45]

The answer should be B.

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2 years ago

Megan's cousin wants to buy a new sound system for his car. She goes to the electronics store to help him to pick it out. The ba

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Step-by-step explanation:

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3 years ago

An expression to convert 50 miles per hour to miles per minute is shown. 50 miles Over 1 hour into 1 hour Over blank minutes

Darina [25.2K]

Answer:

$\frac{50 miles}{1 hour} * \frac{1 hour}{60 minutes}$

Step-by-step explanation:

Since 1 hour contains 60 minutes, So 1 hour would by divided by 60

So, the required expression is,

=> $\frac{50 miles}{1 hour} * \frac{1 hour}{60 minutes}$

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3 years ago

Read 2 more answers

Angle sum in a triangle

Aneli [31]

Answer:

x=8

Step-by-step explanation:

7x-6+60+70=180°

7x-6+130=180°

7x+124=180°

7x=180-124

7x=56

x=56

___

x=8

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3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

coldgirl [10]

Answer:

z = -0.4.

Step-by-step explanation:

Here's the formula for finding the z-score (a.k.a. standardized normal variable) of one measurement $x$ of a normal random variable $X \sim N(\mu,\; \sigma^{2})$ :

$\displaystyle z = \frac{x-\mu}{\sigma}$ ,

where

$z$ is the z-score of this measurement,
$x$ is the value of this measurement,
$\mu$ is the mean of the random normal variable, and
$\sigma$ is the standard deviation (the square root of variance) of the random normal variable.