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hoa [83]
2 years ago
12

Which expressions are equivalent to each other?

Mathematics
1 answer:
Aneli [31]2 years ago
3 0
B and D if you multiply 13 by z it would be 13z and you can add 5 and 8 because they have the same variable equaling 13z
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Identify the exponent in the term –3x 2 . A. 3 B. x C. 2 D. minus sign (–)
leva [86]

Answer:

Correct option is:

C. 2

Step-by-step explanation:

We have to find the exponent in the term -3x²

An exponent refers to the number of times a number is multiplied by itself.

Here, x is multiplied to itself 2 times

i.e. x\times x=x^2

Hence, exponent in the term -3x² is:

2

So, the correct option is:

C. 2

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3 years ago
PLS HELP!! There are 8 lifesavers in a roll and 3 of them are red. What is the probability of opening the roll and the 1st lifes
Sati [7]

Answer:

37.5 percent (3/8)

Step-by-step explanation:

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The formula to determine energy is uppercase E = one-half m v squared. What is the formula solved for v?
alexandr402 [8]

Answer:

Step-by-step explanation:

E=\frac{1}{2}mv^2

All the variables on the right are being multiplied together then the whole mess is being divided by 2.  Let's get rid of the 2 first.  The undoing of division is multiplication, so we will begin by multiplying both sides by 2 to get

2E=mv^2

Next we will move the m. The undoing of multiplication is division.  So we divide both sides by m to get

\frac{2E}{m}=v^2

The undoing of a square is to take the square root, so we will do that to both sides giving us, finally

\sqrt{\frac{2E}{m} }=v

6 0
3 years ago
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4.7 is 10 times as much as what number
viktelen [127]

Answer: 4.7 is 10 as much as the number 0.47.

If you multiply 0.47 x 10 it will equal 4.7

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3 years ago
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