F(-5)= 3-2(-5)
= 3+10
= 13
Hope it helps :))
Answer:
The first mechanic charges $105 per hour, and the second mechanic charges $90 per hour.
Step-by-step explanation:
If x is the rate of the first mechanic, and y is the rate of the second mechanic, then:
10x + 5y = 1500
x + y = 195
Solve the system of equations using elimination or substitution. Using substitution:
10x + 5 (195 − x) = 1500
10x + 975 − 5x = 1500
5x = 525
x = 105
y = 195 − x
y = 90
The first mechanic charges $105 per hour, and the second mechanic charges $90 per hour.
Step-by-step explanation:
A - 3×3×-3×-3×-3 = 243
B - 3×-3×3 = 27
C - 3×3×-3×-3 = -81
D - 3×-3 = 9
The correct option is C
Answer:
There are 2 solutions:
X=-7.5
X=4.5
**The positive one is 4.5** so it should be that
Step-by-step explanation:
