Evaluate the function

F(x)=-x2-10x

Find F(-5)

F(-5)=25

Step-by-step explanation:

Hi there!

We are given the function:

F(x)=-x²-10x

And we want to find F(-5)

If we want to find f(number), then we will be substituting that number as x into the other side of the function.

In other words, if the function is F(-3), then we would substitute -3 as x in the function, giving us -(-3)²-10(-3)

So for this, we'll substitute -5 as x in the function.

Therefore:

F(-5)=-(-5)²-10(-5)

Going with the order of operations, raise (-5) to the second power

F(-5)=-(25)-10(-5)

Now multiply 25 by -1 (the minus in front of the 25 means -1 * 25)

F(-5)=-25-10(-5)

Multiply -10 by -5

F(-5)=-25 + 50

Add the numbers together

F(-5)=25

Hope this helps!

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have