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IgorC [24]
3 years ago
15

For the function, f(x)=1/4x-2, find x if f(x)=-1

Mathematics
2 answers:
Rama09 [41]3 years ago
8 0

f(x) = 1/4x-3

When f(x) = -1,

= 1/4(-1)-3

= -13/4

Rama09 [41]3 years ago
8 0

Answer

-2.25

Step-by-step explanation:

(1/-4) -2= (1/-4)- 2^4= -9/4= -2.25

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Let f(x) = 4x2 + x + 1 and g(x) = x2 – 2. Find g(f(x)). Show each step of your work.<br> Help please
STatiana [176]
For the answer to the question above, 
<span>g(f(x)) = (4x^2 + x + 1)^2 - 2 </span>

<span>g(f(x)) = (16x^4 + 4x^3 + 4x^2 + 4x^3 + x^2 + x + 4x^2 + x + 1) - 2 </span>

<span>g(f(x)) = 16x^2 + 8x^3 + 9x^2 + 2x + 1 - 2 </span>

<span>g(f(x)) = 16x^2 + 8x^3 + 9x^2 + 2x - 1
I hope my answer helped you. Feel free to ask more questions. Have a nice day!</span>
6 0
3 years ago
Read 2 more answers
How many solutions does this linear system have <br><br> y = 2x - 5<br><br> -8x - 4y = -20
Ray Of Light [21]

replace the 1st equation into the 2nd one for y

-8x-4(2x-5) = -20

-8x-8x+20 =-20

-16x+20 = -40

-16x=-40

x = 5/2 = 2.5

y = 2x-5 - 2(2.5) - 5 = 5-5 = 0

one solution (2.5,0)


8 0
3 years ago
Read 2 more answers
PLEASE PLEASE HELP!!!!
Gennadij [26K]

Answer:

3

Step-by-step explanation:

4 0
2 years ago
Please answer if u do know
PSYCHO15rus [73]
The answer is 14 because they already give you x
7 0
2 years ago
Please help, I honestly have no clue if it's each or none.
RideAnS [48]

Answer:

C there is no mode

Step-by-step explanation:

The mode is the number that appears most often.  Since there is no number that appears more than once, there is no mode

6 0
3 years ago
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