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Dmitriy789 [7]
2 years ago
9

Evaluate variable expressions for 1 and 2

Mathematics
2 answers:
zheka24 [161]2 years ago
6 0
2a + b^2

2(3) + 2^2

6 + 4

10


(x-3)/y

((12)-3)/(3)

9/3

3/1

3
mixas84 [53]2 years ago
6 0

Answer: The answer is 10

Step-by-step explanation:

2a = 2 times 3 which is 6. b2= 2 times 2. 2 times 3 is 6, 2 times 2 is 4. 6 + 4 is 10

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Step-by-step explanation:

7/10= 0.7

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Which expression is equivalent to 1/3b - 7?
olga55 [171]

Answer:

\dfrac{1}{3}(b-21)

Step-by-step explanation:

We need to find an equivalent expression for \dfrac{1}{3}b-7

The denominator of first fraction is 3 and that of other is 1.

\dfrac{1}{3}b-7\\\\=\dfrac{b-21}{3}

or

=\dfrac{1}{3}(b-21)

Hence, the equivalent expression is \dfrac{1}{3}(b-21).

3 0
3 years ago
Read 2 more answers
What are the zeros of the quadratic function f(x) = 6x^2 + 12x – 7?
irinina [24]
<span>6x^2 + 12x – 7 = 0

Use the quadratic formula:

x=  \frac{-b +/-  \sqrt{b^2 -4ac} }{2a}

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</span>
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Answer:

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