2 years ago

Write the following expression without negative exponents and without parentheses.

1 answer:

6 0

ANSWER: -3/x^2

The negative exponent correlates to the x. In order for the exponent to be positive, it changes from the numerator to the denominator.

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Kaylis [27]

Combine the like terms
-x-x^2+7

4 0

3 years ago

lozanna [386]

your equation is linear, so there isn't any arch

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3 years ago

My name is Ann [436]

Let D be Daniel's present age, then we can represent Kevin's present age as 3D because Kevin is 3 times as old as Daniel.

We can write an expression for Daniel's age 4 years ago as D-4 and Kevin's age 4 years ago as 3D-4.

We are told that 4 years ago Kevin was 5 times as old as Daniel. We can write this information as:

$3D-4=5\cdot(D-4)$

Now let us solve our equation to find Daniel's present age.

$3D-4=5D-20$

$-4+20=5D-3D$

$16=2D$

$D=\frac{16}{2}=8$

Daniel's present age is 8 years. Now we will multiply 8 by 3 to get Kevin's present age as Kevin is 3 times old as Daniel.

$\text{Kevin's present age}=8\cdot3=24$

Therefore, Kevin is 24 years old now.

8 0

3 years ago

telo118 [61]

I believe the answers would be b. and c.

5 0

3 years ago

Dmitry [639]

200-144=56
56/2=28
Neil is 28

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3 years ago