2 years ago

Expressions that are equivalent to 3(5x-2)

Mathematics

1 answer:

anastassius [24]2 years ago

3 0

Answer:

15x-6

Step-by-step explanation:

3(5x-2)

5x(3)-2(3)

15x-6

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Answer:

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Step-by-step explanation:

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I have no clue what this is can any one help ?

elixir [45]

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3 years ago

What is the length of BD?

I am Lyosha [343]

Answer:

$10\sqrt{3}$

Step-by-step explanation:

Trigonometric Ratios

This problem will be solved by the use of a trigonometric ratio called sine because it relates the opposite side of a given angle with the hypotenuse of the triangle.

Selecting the angle of 60° in triangle ABD:

Sine Ratio

$\displaystyle \sin 60^\circ=\frac{\text{opposite leg}}{\text{hypotenuse}}$

$\displaystyle \sin 60^\circ=\frac{BD}{20}$

Solving for BD:

$\displaystyle BD=20\sin 60^\circ$

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$\boxed{\displaystyle BD=10\sqrt{3}}$

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2 years ago

last week , it rained x inches. This week the amount of rain decreased by 5%. which expressions represent the amount of rain tha

MArishka [77]

$0.95 x$

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extra help:
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3 years ago

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What is 2x+4 if x is equal to 45

swat32

Hey there!

For this problem you need to replace x with 45

So the new problem is 2(45)+4

2 x 45 = 90
then 90+4 = 94

Your answer is 94

Hope I was able to help!

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3 years ago

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