Identify the expression equivalent to 2x + 8 by substituting x = 7 and x = 5. a. 2x + 10 + 10 b. 2(x + 2) c. (x + 4) + (x + 4) d. (x + 4) e. 2(2x + 4)

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

ιт ωαѕ 5¢м вє¢αυѕє 1/4 σf 20 ιѕ 5

αи∂ 5*4=20

нσρє ι ¢συℓ∂ нєℓρ уσυ

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