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Grace [21]
3 years ago
8

Given: f(x) = 2x^2 - 3 and g(x) = x + 4

Mathematics
1 answer:
nevsk [136]3 years ago
4 0
(fg)(x) = (2 {x}^{2} - 3)(x + 4) = 2 {x}^{3} + 8 {x}^{2} - 3x - 12
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What percent of 80 is 20
Olenka [21]
25% is the answer
Hope this helps and
7 0
3 years ago
5/3x−2y=−2 −x+y=2<br> What is the solution of the system of equations?
gtnhenbr [62]

Answer:

  (x, y) = (-6, -4)

Step-by-step explanation:

The solution can be found quickly using a graphing calculator. It is the point of intersection of the two lines.

_____

If you like, you can solve the system algebraically. The second equation can be rewritten to give ...

  y = x +2

Substituting this into the first equation gives ...

  5/3x -2(x +2) = -2

  -1/3x -4 = -2

Adding 4 and multiplying by -3 gives ...

  x = -3(-2+4) = -6

Then our equation for y tells us ...

  y = -6 +2 = -4

The solution is (x, y) = (-6, -4).

5 0
3 years ago
Graph the two equations in the system;<br> y = 2x + 1 y=-3x +6​
NeTakaya

Answer:

Hello!

Step-by-step explanation:

The ordered pair answer is (1, 3) And I have attached a picture of the graph!

4 0
2 years ago
Read 2 more answers
The density of aluminum is 2.7 g cm3 what is its density in kilograms per cubic meter
maw [93]

The only thing that we have to do in this problem is to convert the units.

We know that:

1000 g = 1 kg

100 cm = 1 m

 

Therefore:

density = (2.7 g / cm^3) * (1 kg / 1000 g) * (100 cm / m)^3

<span>density = 2700 kg / m^3</span>

3 0
3 years ago
WHICH OF THESE IS EQUIVALENT TO 4^-3 ? <br> (-4)(-4)(-4)<br> 3^4<br> (-1/4)(-1/4)(-1/4)<br> 1/4^3
iVinArrow [24]

Answer:

I believe it is 1/ 4^3

Step-by-step explanation:

When dealing with negative exponents you convert the number into a fraction. When so, the number 4 in the denominator then has the positive exponent of 3

3 0
3 years ago
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