Answer:
∠7=22°
Step-by-step explanation:
∠2 and ∠7 are supplementary angles, meaning they add to 90°.
∠2+∠7=90°
substitute ∠2
68°+∠7=90°
∠7=22°
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
Answer:multiplication
Step-by-step explanation:
No
The exponent to the power 4 means multiply the base, which is 10 here, by itself 4 times
10 x 10 x 10 x 10 = 10,000
If it was 10 x 4, it would be 40, but we're dealing with exponents here.
:)
Answer:
50%
Step-by-step explanation:
93/186=.5
.5*100=50%
