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Harrizon [31]
3 years ago
8

Which best proves why the expressions 4 (x + 3) + 2 x and 6 (x + 2) must be equivalent expressions?

Mathematics
2 answers:
Maksim231197 [3]3 years ago
8 0

Answer:

A. When x = 3, both expressions have a value of 30.

Step-by-step explanation:

The first expression is 4(x+3)+2x

The second expression is 6(x+2).

When we substitute x=3 into the first equation, we get:

4(3 + 3) + 2(3) = 4 \times 6 + 6 = 24 + 6 = 30

When we substitute x=3 into the second expression we get:

6(3 + 2) = 6(5) = 30

This proves that the two expressions are equivalent.

The correct choice is A

chubhunter [2.5K]3 years ago
4 0

Answer: A

Step-by-step explanation:

Hope this helps can i have brainly-est please

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April shoots an arrow upward at a speed of 80 ft/sec from a platform of 25 ft. High. The pathway of the arrow can be represented
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Answer:

125feet

Step-by-step explanation:

Given the equation that modeled the height expressed as h = -16t^2 + 80t + 25, where h is the height and t is the time in seconds.

The arrow reaches the maximum height at dh/dt = 0

dh/dt = -32t + 80

0= -32t+80

32t = 80

t = 80/32

t = 2.5secs

substitute t = 2.5 into the formula;

h = -16t^2 + 80t + 25

h = -16(2.5)^2 + 80(2.5) + 25

h = -16(6.25)+225

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3 years ago
A craftsman can sell 10 jewelry sets for $500 each. He knows
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Answer:15

Step-by-step explanation:

Given

Craftsman sell 10 Jewelry set for $500 each

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Answer

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Answer:

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Step-by-step explanation:

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