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yawa3891 [41]
2 years ago
15

Let f(x) = x^2 − 3x − 7. Find f(−3).

Mathematics
2 answers:
Pavel [41]2 years ago
8 0

Answer:

Answer would be 11

I know because it's right on the test I took :)

IRINA_888 [86]2 years ago
7 0

Answer:

11

Step-by-step explanation:

(-3)²-3(-3)-7

9+9-7

11

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Choose the set of equivalent fractions that correctly uses the LCD for these fractions 3/4 and 1/6
valina [46]

Answer: 9/12, 2/12

Step-by-step explanation:

Start by writing multiples of 6 and 4

4: 4, 8, 12

6: 6, 12, 18

Did you see the multiple that both numbers have? Yup, it's 12. So that has to be your denominator for both fractions. This is because you have to have the <u>LEAST</u> COMMON Denominator (LCD). So both numbers have 12 in common as one of their multiples and, it's the least common one because there are no numbers that come before it that are common for both numbers. Now, you just have to change the denominators of both fractions into 12. To do that to 3/4, just multiply the top and bottom by 3 to get 9/12. To do that to 1/6, just multiply the top and bottom by 2 to get 2/12.  Hope this helps!

NOTE: REMEBER THAT WHATEVER YOU DO TO THE TOP OF A FRACTION, YOU HAVE TO DO IT TO THE BOTTOM TOO (AND VICE VERSA)

6 0
3 years ago
Designing a Sprinkler System
Bogdan [553]

Answer: Its B

Step-by-step explanation:

3 0
3 years ago
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7 0
3 years ago
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What is the value of y in the equation 4(5y − 8 − 2) = 185 − 15? 8. 5 9. 7 10. 5 42. 5.
Bezzdna [24]

Answer:

10.5 is the answer

Step-by-step explanation:

4(5y−8−2)=185−15

(4)(5y)+(4)(−8)+(4)(−2)=185+−15(Distribute)

20y+−32+−8=185+−15

(20y)+(−32+−8)=(185+−15)(Combine Like Terms)

20y+−40=170

20y−40=170

20y−40+40=170+40

20y=210

20y/20=210/20

y=21/2

y=10.5

6 0
3 years ago
Write the equation in standard form.<br><br> 3x−9=7y
Ket [755]
In standard form the answer will be if you go by (Ax+by=c )then I must say it's 3x-7y=9
6 0
3 years ago
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