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Tema [17]
2 years ago
7

If f(x)=2x^2+1 and g(x)= x^2-7 find (f-g)(x)

Mathematics
1 answer:
kvasek [131]2 years ago
3 0

Answer:

x² + 8

Step-by-step explanation:

(f - g)(x)

= f(x) - g(x)

= 2x² + 1 - (x² - 7)

= 2x² + 1 - x² + 7 ← collect like terms

= x² + 8

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Find x and Y pls help
lisabon 2012 [21]

Answer:

Step-by-step explanation:

Comment

The angle supplementary to x and 3x are equal.

Supplementary angles = 180

Solution

x + 3x = 180

4x = 180                  Divide by 4

4x/4 = 180/4

x = 45

The angle supplementary to x is 3x

3x = 3*45

3x = 135

This angle is vertically opposite y. Vertically opposite angles are equal. So  y = 135

Answer

x = 45

y = 135

3 0
1 year ago
Which of the following number would have digit 5 at units place?
BARSIC [14]

Answer:

B

Step-by-step explanation:

cause it's got a 5.....5 x 5 = 25.......make sense

6 0
3 years ago
Brian made 5 free throws at basketball practice. ethan scored 3 more than twice the number of free throws brian made. which equa
Hatshy [7]
Lets Brian => b and Ethan => e so
b=5
e=3+2b
will be the equation of finding free throws.

5 0
3 years ago
Fill in the answer.
OLEGan [10]

Answer:

-9

-2

1

-10

1

6

Step-by-step explanation:

Just follow the equation left to right

4 0
3 years ago
I NEED HELP ON THIS CONSTRUCTED RESPONSE! :(
Simora [160]

Answer:

<em>x = -10</em>

Step-by-step explanation:

(9/2)(8 - x) + 36 = 102 - (5/2)(3x + 24)

Multiply both sides by 2.

9(8 - x) + 2 * 36 = 2 * 102 - 5(3x + 24)

Distribute on both sides.

72 - 9x + 72 = 204 - 15x - 120

Combine like terms on each side.

144 - 9x = 84 - 15x

Subtract 144 from both sides. Add 15x to both sides.

6x = -60

Divide both sides by 6.

x = -10

7 0
3 years ago
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