Answer:
Step-by-step explanation:
f(x) = -8x + 20
f(-1) = -8* -1 + 20 = 8+20 =28
5 - 2[f(-1)] = 5 - 2*28 = 5 - 56 = -51
-7x+y=23
6x+7y=-4
y=7x+23
6x+7(7x+23)=-4
6x+49x+161=-4
55x+161-161=-4-161
55x/55=-165/55
x=-3
-7(-3)+y=23
21+y-21=23-21
y=2
Answer:
The Proof for
is below.
Step-by-step explanation:
To Prove:

Proof:
We know law of indices

Therefore,
Step 1: Applying law of indices

Step 2: Taking common
we get

Step 3:
so add 5 + 1 we get

Step 4: Cancel 6 from both denominator and numerator we get
...That is Divisible by 6 Proved
Answer:
2
Step-by-step explanation:
10-2=8.
1186.30/999=1.187
1.187*1.187=1.409