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!
4 (whole number) and 5/10 (.50 over 100)
11) 8:48 I believe and I think that number 13 is 6 hours and 30 minutes
Answer:
Let
a
=
8
and
b
=
8.5
Let the angle between
a
and
b
be
θ
Let the unknown side be
c
As
θ
→
0
,
88
c
→
0.5
As
θ
→
180
∘
,
88
c
→
16.5
So the lenght of side
c
will be in the interval:
0.5
<
c
<
16.6
Step-by-step explanation: