3 years ago

Help me on #8 on a-d please.

1 answer:

5 0

So for these types of questions you want to substitute the value given into the equation...
So for a,

f(x)=2x-7
f(-3)=?
well instead of x you place -3,
so
f(-3)= 2*-3 - 7
So now you solve using order of operations (PEMDAS)
So,
2*-3=-6 So,
f(-3)=-6-7
-6-7=-13
So,
f(-3)=-13

Try to do that for the others and I'll let you know if you're right. Good luck!

You might be interested in

beyonce michelle and kelly shared a carton of soft drink containing 2 dozen cans. Beyonce takes 3/8 Michelle takes 5/12 and kell

Shalnov [3]

Beyonce gets 9 cans worth, Michelle drinks 10 cans worth of soft drink and kelly receives 5 cans worth.

Dozen = 12 so 2 dozens = 12x2=24

3/8 = 9/24 because 8x3=24 & 3x3=9
5/12 =10/24 because 12x2=24 & 5x2=10
5/24 is fine because it is already out of 24

5 0

3 years ago

Half of the students in Max's class volunteer at the local community center.Fifteen students do not volunteer.If there are 12 bo

yulyashka [42]

18 girls
Half of the students volunteer
15 don't -- so the other half must be 15 as well making there 30 students in the class.
If 12 are boys, then 30(students in class) - 12 (boys) = 18 girls

7 0

3 years ago

4. A substantial snowstorm is hitting the Northeast region and is predicted to snow at a rate of 2 inches per

Stolb23 [73]

This is number a and I will list take the other