4 years ago

Please help 20 points

Mathematics

1 answer:

lorasvet [3.4K]4 years ago

4 0

All I see is a white image I think something is wrong I’m not sure..

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2x+5=10<br> I need to find out x pls help

Finger [1]

Answer:

Step-by-step explanation:

2x + 5 = 10

you minus the 5

2x = 5

you divide both sides by 2

x = 5

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4 years ago

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guapka [62]

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3 years ago

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Which algebraic expression is equivalent to the expression below?

Anna007 [38]

Answer:

$\boxed {52x - 45}$ (Choice B)

Step-by-step explanation:

Solve the following expression:

$9(5x - 5) + 7x$

-Use <u>Distributive Property</u>:

$9(5x - 5) + 7x$

$45x - 45 + 7x$

-Combine like terms:

$45x - 45 + 7x$

$\boxed {52x - 45}$

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4 years ago

What is cos 45º?...........

Alenkinab [10]

Answer:

$\frac{1}{\sqrt{2} }$

Step-by-step explanation:

Cosine (cos) is adjacent by hypotenuse. $\frac{adjacent}{hypotenuse}$

In any of the 45° angles, 1 is adjacent and √2 is the hypotenuse.

So arrange them to get $\frac{1}{\sqrt{2} }$

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3 years ago

Which number is equal to 10 to the power of neg 3

Shkiper50 [21]

Answer:

0.001

Step-by-step explanation:

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