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Dennis_Churaev [7]
2 years ago
14

Which value of a would make the following expression completely factored?

Mathematics
1 answer:
ehidna [41]2 years ago
7 0

Answer:

12

Step-by-step explanation:

x^2 - a

If a is a perfect square we could factor

x^2 - b^2 = (x-b)(x+b)

So a cannot be 36,49,81 since they are perfect squares

a must be 12

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5 days = ? hours <br> Can you please show work so i can understand better?
son4ous [18]
24 Hours in one Day

5 Days

24 <span>× 5 = 120 Hours


Hope that helps! </span>
8 0
2 years ago
Read 2 more answers
a parallelogram has one angle that measures 40. what are the measures of the other three angles in the parallelogram?
KonstantinChe [14]
Since one side is 40°, you subtract that from 180.

180° - 40°= 140°.

So therefore your missing side lengths are 140, 40, and 140.

hopefully this helps





6 0
3 years ago
Read 2 more answers
a soccer team practiced 3 times a week. each practice lasts for 110 minutes. the team practices for 14 weeks during the season.
Fittoniya [83]
3 weeks x 110 minutes = 330 minutes
330 minutes a week x 14 weeks = 4620 minutes
4620 divided by 60 minutes = 77 hours
77 hours is your answer
5 0
3 years ago
Natalie invested $40,000 in an account paying an interest rate of 8 % compounded
NARA [144]

Answer:

8000

Step-by-step explanation:

Natalie

Divide 40k by 2 to get 20k and divide 20k by 5 to get 4k we are at 10%

4k / 5 = 800 that means that every 2% is 800 now we multiply by 4x

To get 8% and we get 3200 and multiply by 20 representing the yrs

3200 x 20 = 64k + 40+ = 104k

Mackenzie

40k divide by 2 to get 50% 40k / 2 = 20k and now we divide by 5 to get 10% 20k / 5 = 4k now we divide by 10 to get the amount of each percents worth 4k / 10 = 400 we multiply by 9 to get the compounded interest

400 x 9 = 3600 multiply by 20 to get the compounded daily investment after 20yrs 3600 x 20 = 72k + 40k = 112k

112k - 104k = 8k

5 0
2 years ago
Enter the ZEROS of the function below. Select 2 answers:
nexus9112 [7]
F(x) = x² - 13x + 30

f(x) = x² - 3x - 10x + 30 = 0

f(x) = x(x - 3) -10(x - 3) = 0

f(x) = (x-3)(x-10) = 0

f(x) = 3 OR 10

In short, Your Answer would be Option B & D

Hope this helps!
5 0
3 years ago
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