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Tatiana [17]
3 years ago
6

What does it mean to evaluate an expression?

Mathematics
2 answers:
Lunna [17]3 years ago
8 0
Evaluate an expression means to simplifying an expression down to a numerical value
Alekssandra [29.7K]3 years ago
6 0
It means to solve, or simplify the expression.

Let's give two examples.

1) 5 + 2²
    5 + 4
    9      <- We are trying to simplify/solve the expression to as far as we can. 
                 9 cannot be simplified, so the expression has been evaluated.

2) 4x - 5x + 9y
    -x + 9y          <- Can not be simplified any further so the expression has                                                been evaluated via. combining like terms.
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Simplify 0, -6 please :(
snow_tiger [21]

Answer:

You cant simplify it??????

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Justin lives 3 2 5 miles from his grandfather's house. Enter the mixed number as a fraction greater than one. 3 2 5 =
elena-s [515]

Answer: \dfrac{17}{5} miles

Step-by-step explanation:

We can express a mixed fraction as an improper fraction.

The process is as follows:

a\dfrac{b}{c}=\dfrac{ac+b}{c}

The given mixed number = 3\dfrac25 miles

This can be represented as

3\dfrac25=\dfrac{3\times5+2}{5}\\\\=\dfrac{15+2}{5}\\\\=\dfrac{15+2}{5}\\\\=\dfrac{17}{5}>1

Hence, the required fraction= \dfrac{17}{5} miles

3 0
3 years ago
The size of a certain cell is 2.5 x 10^-9 m. Another cell is 1.5 x 10^3 times larger. How large is the larger cell in scientific
Sveta_85 [38]
The answer is d. I just took the quick check.
6 0
3 years ago
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Using the polynomials Q = 3x 2 + 5x - 2, R = 2 - x 2, and S = 2x + 5, perform the indicated operation: Q - [R + S]
sleet_krkn [62]
(3x^2+5x-2)- ((2-x^2+2x+5))
(3x^2+5x-2)- ((7-x^2+2x))
Since no more can be added or broken down
3x^2+5x-2 - 7-x^2+2x
2x^2+7x-9
5 0
3 years ago
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Find each product.<br><br> (5-x2+2)(-3)<br><br> PLEASE HELP!!! ASAP!!!
Bumek [7]

Answer:

3x^2 - 21 (did you mean for the equation to be (5 - x^2 + 2) \cdot -3?)

Step-by-step explanation:

Multiplying -3 by each term:

-3 \cdot 5 = -15

-x^2 \cdot -3 = 3x^2

-3 \cdot 2 = -6

-15-6 = -21

So the equation comes out to 3x^2 - 21 .

Hope this helped!

3 0
3 years ago
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