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elena-s [515]
4 years ago
6

Find the solution set for x2 + 3x – 40 = 0.

Mathematics
1 answer:
Temka [501]4 years ago
8 0
I am going to assume that x2 = x squared
So: X^2 + 3x -40 
= (X+8)(X-5)=0

X+8 = 0
X= - 8

The other solution is X -5 = 0
X = 5

Therefore the solution set is {-8, 5}
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When she graduates college Linda will owe 43,000 in student loans. The interest rate on the federal Liana is 4.5 % and the rate
Amanda [17]

Answer:

federal loan amount = $29,000

private loan amount = $14,000

Step-by-step explanation:

Total amount is 43000

Let amount in federal be f

and

amount in private be 43,000 - f

Interest rate at federal is 0.045

Interest rate at private is 0.02

THus, we can form the equation shown below and solve:

f(0.045) + (43,000 - f)(0.02) = 1585

0.045f +860 - 0.02f = 1585

0.025f = 725

f = 29,000

and on private = 43,000 - 29,000 = 14,000

Hence

federal loan amount = $29,000

private loan amount = $14,000

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3 years ago
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guajiro [1.7K]

Answer:

1 and 4, 2 and 3, 5 and 8, 6 and 7

Step-by-step explanation:

Any of those would work

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3 years ago
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Wewaii [24]

Answer:

The missing number is 16.

Step-by-step explanation:

The ratio between x and y is 1:4. 4 times 4 is 16. Hope this helped! :)

4 0
3 years ago
What is an equation that passes through (18,2) and is parallel to 3y-x=-12
MrRa [10]
3(2)-18=-12
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5 0
3 years ago
Please help ASAP!!!!!!!
AveGali [126]

Answer: 63.3

Step-by-step explanation:

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28.5 + 34.8

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8 0
3 years ago
Read 2 more answers
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