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madam [21]
3 years ago
5

Find f(g(x)) when f(x) = 3x2 + x - 8, and g(x) = 4x + 5.

Mathematics
1 answer:
pshichka [43]3 years ago
7 0

Answer:

Its C.

Step-by-step explanation:

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Encuentra en cada producto notable el error o errores,enciérralo y escribe el resultado correcto.
lbvjy [14]

Given:

The equation is:

(2x+3y)(2x-3y)=4x^2+6y^2

To find:

The error in the given equation and correct it.

Solution:

We have,

(2x+3y)(2x-3y)=4x^2+6y^2

Taking left-hand side, we get

L.H.S.=(2x+3y)(2x-3y)

L.H.S.=(2x)^2-(3y)^2                 [\because a^2-b^2=(a-b)(a+b)]

L.H.S.=(2)^2(x)^2-(3)^2(y)^2       [\because (ab)^x=a^xb^x]

L.H.S.=4x^2-9y^2

It is not equal to right-hand side 4x^2+6y^2. In the right hand side, there must be a negative sign instead of positive sign.

Therefore, (2x+3y)(2x-3y)=4x^2-6y^2.

8 0
3 years ago
Sam studied guinea pigs for his science fair project. He found that the amount of weight the guinea pigs gained varied directly
Oliga [24]

From the given above, we can formulate the equation:

W = C / 218

By substituting the given values:

W = 1090 calories / (218 calories / 1 ounce)

W = 5 ounce

<span>Therefore the guinea pigs will gain additional 5 ounce if the diet was increased by 1090 calories.</span>

4 0
3 years ago
Which of the following methods can be used to determine if a relation is a function?? Select all that apply.
CaHeK987 [17]

Answer:

B)  Write out the relation in an x-y table and check that each x-value corresponds to the only one x - value

8 0
3 years ago
How do I make an equation using 0.5 for slope and 3 for y intercept
Ann [662]

The slope-intercept form of a line is y = mx + b, where m is the slope and b is the y-intercept. Since you are given the slope (0.5) and the y-intercept (3), all you have to do is substitute these given values into the equation.  Substituting them in you get: y = 0.5x + 3, which is your answer.

7 0
3 years ago
Read 2 more answers
Solve the system if equations: 3x+y+3z=4 <br> 4x-y+2x=5 <br> X-2y-z=0
Ugo [173]

Answer:

The answer is in step-by-step explanation

Step-by-step explanation:

3 x + y + 3 z = 4

4 x - y + 2 z = 5

x - 2 y - z = 0

4 0
3 years ago
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