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2 years ago

What is the value of 2x 4x-3x-6x when x =3

Mathematics

1 answer:

Kruka [31]2 years ago

7 0

2x + 4x - 3x - 6x = -3x

When x = 3,
-3x = -3(3) = -9

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Will give brainiest answer, I need step-by-step answer

Korvikt [17]

Answer: Choice A

The volume expression is 4/3 times pi times (3x)^3

===================================================

The volume of a sphere is found through the formula

V = (4/3)*pi*r^3

so we start with the fraction 4/3, multiply it with pi, and then multiply it with r^3

In this case, the radius is r = 3x because this is half of the diameter d = 6x

We simply replace the r with 3x in that formula above

V = (4/3)*pi*r^3

V = (4/3)*pi*( r )^3

V = (4/3)*pi*(3x)^3 ... replace r with 3x

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2 years ago

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IgorC [24]

ans C) each additional t-shirt being printed will increase the total cost by$11

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3 years ago

36.25= 45.5% of ____

aev [14]

Answer:

36.25 is equal to the 45.5% of 79.67

Step-by-step explanation:

To solve this you just have to find the value that represents the 100%.

To do this, you can use the Rule of Three that allows you to solve problems of proportions.

In this case, you know that the 45.5% of the magnitude <em>X </em>is 36.25, now you have to find the value which corresponds to the 100%.

Mathematically it will be:

$\frac{X}{36.25} =\frac{100}{45.5}$

Then you have to solve the equation to find <em>X</em>:

$X=\frac{100}{45.5}*36.25$

And finally, the answer is:

$X=79.67$

7 0

3 years ago

2 7/8 divided by 2 1/4

trasher [3.6K]

2 7/8 = 23/8

2 1/4 = 9/4

23/8 / 9/4 =

23/8 * 4/9 = 92/72 = 1 20/72 = 1 5/18

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3 years ago

Find the intervals of increase and decrease for (x+2)^3-3x-2

Tanzania [10]

(-∞,-4.196)∪(-4.196,-3)∪(-3,-1)∪(-1,0)∪(0,∞)

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3 years ago