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Bad White [126]
4 years ago
14

Evaluate 9x + 3xy − 2 for x = 3 and y = −3.

Mathematics
1 answer:
klemol [59]4 years ago
5 0

Answer:

- 2

Step-by-step explanation:

Given

9x + 3xy - 2

Substitute x = 3 and y = - 3 into the expression

= 9(3) + 3(3)(- 3) - 2

= 27 - 27 - 2 = - 2

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For the annual rate of change of +70%, find the corresponding growth or Decay Factor.
omeli [17]
Hello there!
1. Okay. So 70% is positive, so it is a corresponding growth. 70% is 0.7 in decimal form. C and D are both eliminated, because that's too large. When something grows by 70%, that is less than double. 0.7 is not right either, because that's more of a decay than a growth. The only answer that makes sense id 1.70, because you are going up, and adding 1 to decimal form brings you to the decimal that when multiplied will bring you to the total. The answer is B: 1.70.

2. So, -75% is negative, so it is a decay factor. A is eliminated, because it makes no sense and B is out, because that represents growth, not decay. You lose 75% of the amount overtime compounded, but you still have 25% that remains. To find that amount, you would subtract that amount from 1 to get the decay. 1 - 0.75 is 0.25. The decay factor is 0.25. The answer is D: 0.25.
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3 years ago
HELP PLEASE (image) Find the volume of this triangular prism.
shutvik [7]

the answer is 235 cubic meters

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3 years ago
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Katena32 [7]

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because there are 20 girls and 10 boys = 30

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2 years ago
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What is the solution to the system of linear equations graphed below?
rusak2 [61]

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abruzzese [7]

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