CAN ANYONE HELP WITH THESE PLEASE...? (EASY 21 POINTS)

1 answer:

7 0

1) 2x * 2x = 4x^2
2) 2(-1)+6 = 4
3) (4x)(6x+6) = 24x^2 + 4x
4) ((6)+4)(5(6)) = 300
5) 4x(x+1)= 4x^2+4x
6) (-x-3)(-5x+10) = 5x^2+5x-30
7) (2(4)+3)(5(4)-2) = 198
8) ((5)^2+2)(2(5)-1)=243
9)

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4k + 15 greater than -2k + 3

ioda

Answer:

k>-2

Step-by-step explanation:

4k+15>-2k+3

4k-(-2k)+15>3

4k+2k+15>3

6k+15>3

6k>3-15

6k>-12

k>-12/6

k>-2

8 0

3 years ago

If g(x) = 4√x-8 , which statement is true?

Mariana [72]

We have the following function:

$g(x)=4\sqrt{x}-8$

So if we graph this function we will get the Figure below. Thus, let's study both the equation and the graph to get some conclusions. Therefore, we can assure these statements:

First. The function is defined only for $x\geq 0$ as shown in the Figure. This is also true because of $\sqrt{x}$ where $x$ must be greater (or equal) than zero.

Second. The range of the function are the values of $y\geq -8$ .

Third. If $x$ creases then $y$ always creases, too.