The function shown is f(x)= -1/2 cos(x).

sin(x) makes the line way more “curverier” So both sin(x) functions are out. It is NOT 1/2 cos(x) because it would make the y-intercept 0, not .5 In the picture it’s starting at .5 so it’s f(x)=-1/2 cos(x)

4 0

3 years ago

What is the scale factor of the two triangles below?

irina [24]

The correct answer is: [A]: " $\frac{3}{4}$ " .
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<u>Note</u>: "3/4" = "6/8" = "15/20" .
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8 0

2 years ago

10. The expression 4 (2x-5)+7(x+2) can be written in simplest form as

ankoles [38]

Answer:

15x-6

Step-by-step explanation: 4 * 2x = 8x

4*-5 = -20

7*x = 7x

7*2= 14

Combine like terms 8x + 7x + 14-20

15x-6

4 0

2 years ago