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Maurinko [17]
2 years ago
9

Evaluate 5x²-4 when x = 3

Mathematics
2 answers:
krek1111 [17]2 years ago
3 0
5(3)^2-4
5(9)-4
45-4
41
kakasveta [241]2 years ago
3 0
5(3²) - 4
Simplify the exponent.
5(9) - 4
Distribute the 5 into 9
45 - 4
41

Your answer is 41

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I need help please please
Aliun [14]

Answer:

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Step-by-step explanation:

well first you got to simply for equation

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then you divide everything by 3

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3 years ago
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sasho [114]

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adelina 88 [10]

Answer:

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valentinak56 [21]

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5 0
3 years ago
Your cell phone plan is by the minute. each minute of use cost $0.10. create a relation that represents the amount spent, A, per
Dmitriy789 [7]

Answer:

Talking 65 minutes, $ 6.50 must be paid.

Step-by-step explanation:

Since your cell phone plan is by the minute, and each minute of use cost $ 0.10, to create a relation that represents the amount spent, A, per minute, m, of call time, and then use the relation to find the amount spent if you talk 65 minutes, the following calculations must be performed:

0.10 x M = A

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Thus, talking 65 minutes, $ 6.50 must be paid.

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