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3 years ago

Combine like terms in the expression –5x + 2y + 5x – 8y.

2 answers:

6 0

You need to combine -5x and 5x together and that would give you zero so you need to combine 2y and -8y which would give you -6y so the answer is C. -6y

fenix001 [56]3 years ago

5 0

C

-5x + 5x
0x

2y - 8y
-6y

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Answer:

Step-by-step explanation:

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3 years ago

To find the area of a circle with a diameter of 18.

Serga [27]

$\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the Concept of the areas.

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3 years ago

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3 years ago

A random variable x is uniformly distributed over the interval (-4, 6). Find the standard deviation of x. (Note: Uniform distrib

Pachacha [2.7K]

Answer:

The standard deviation of x is 2.8867

Step-by-step explanation:

The standard deviation of variable x that follows a uniform distribution is calculated as:

$s = \sqrt{\frac{(b-a)^{2} }{12} }$

Where (a,b) is the interval where x is defined.

So, replacing a by -4 and b by 6, the standard deviation is:

$s = \sqrt{\frac{(6-(-4))^{2} }{12} }$

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4 years ago

What percent of 450 is 60? Round to the nearest hundredth of a percent.

EleoNora [17]

Hello!

To solve this, to these steps..

Turn 450 _ 60 into fraction.
450/60.
Multiply both by 100. (450 & 60)
750 / 100
Turn 750/100 into decimal.
0.750
Turn 0.750 into percent
750%

Hope this helps! ☺♥

7 0

3 years ago

Read 2 more answers