Answer:
c = 5
Step-by-step explanation:
Distribute the left side and compare like terms with the right side.
- 2x³(cx³ + x²) = - 2c
- 2
Compare to - 10
- 2
For the 2 sides to equate then
- 2c
= - 10
Hence c =
= 5
Answer:
1
Step-by-step explanation:
f(g(x)) = 1, therefore the domain is 1
Answer:
C
Step-by-step explanation:
f(x) = Price
2.00 = Price of one ride
x = number of times ridden
f(x) = 2x
Answer:
.25 X 4 = 1
.50 X 2 = 1
.10 X 10 = 1
Step-by-step explanation:
:)
Answer:
Use 49 ounces of the 14% allow and 41 ounces of the 23% alloy.
Step-by-step explanation:
Each ounce of the 14% copper contains 0.14 ounce of pure copper.
Each ounce of the 23% copper contains 0.23 ounce of pure copper.
Each ounce of the 18.1% copper contains 0.181 ounce of pure copper.
Use x ounces of the 14% and y ounces of the 23% to make 90 ounces of 18.1% alloy.
x+y = 90
y = 90-x
0.14x + 0.23y = 0.181·90
0.14x + 0.23(90-x) = 16.29
0.14x + 20.7 - 0.23x = 16.29
-0.09x + 20.7 = 16.29
4.41 = 0.09x
x = 49
y = 90-x = 41
Use 49 ounces of the 14% allow and 41 ounces of the 23% alloy.