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Dmitry_Shevchenko [17]
2 years ago
14

If f(x) = 2x² + 5 and g(x) = x² - 2, find

Mathematics
1 answer:
IgorLugansk [536]2 years ago
4 0

Answer:

C. x² + 7

Step-by-step explanation:

If f(x) = 2x² + 5 and g(x) = x² - 2, then

(f - g)(x) = f(x) - g(x)

            = (2x² + 5) - (x² - 2)

            = 2x² + 5 - x² + 2

            = 2x² - x² + 5  + 2

            = x² + 7

           

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What is the sum of the first 9 terms of 7+21+63+...
attashe74 [19]

Answer:

Step-by-step explanation:

7

21

+63 =91

7 0
3 years ago
Jasmine has only $46.50 to spend at forever 21. She wants to buy a shirt that costs $19, including tax, and some bracelets that
ivanzaharov [21]
46.50 - 19 = 5.50x

We get the 46.50 from her budget and the 19 from the shirt she wants to buy. If we subtract 19 from 46.50, we'll get the amount of money Jasmine can spend on bracelets.

46.50 - 19 = 27.50

She has $27.50 to spend on bracelets. Now, we divide that by 5.50 (the price of a bracelet) to see how many she can buy.

27.50 ÷ 5.50 = 5

Jasmine can buy 5 bracelets.

Hope this helps!
4 0
3 years ago
I need help with 8–4 + 9 x 12​
Alenkasestr [34]

Answer:

112

Step-by-step explanation:

8–4 + (9 x 12)

8–4 + 108

112

3 0
3 years ago
3a+11=7a-13 with shown work​
DaniilM [7]

3a+11=7a-13

move 7a to the other side

sign changes from +7a to -7a

3a-7a+11= 7a-7a-13( combine like terms)

3a-7a+11= -13

-4a+11= -13

move 11 to the other side

sign changes from +11 to -11

-4a+11-11= -13-11

-4a= -13-11

-4a= -24

divide both sides by -4 to get a by itself

-4a/-4= -24/-4

Answer: a= 6

4 0
3 years ago
SOMEONE PLEASE HELP MATH
klio [65]
Circumference = 2πr
3π=2πr
r=3π÷2π
r=3/2
area of a circle= πr²
=π×(3/2)²
=2.25π
5 0
3 years ago
Read 2 more answers
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