Answer:
x^2 -x -6
Step-by-step explanation:
f(x) = x^2 + 2x - 2 and g(x) = 3x + 4,
h(x) = f(x) – g(x)
= x^2 + 2x - 2 -(3x + 4)
Distribute the minus sign
x^2 + 2x - 2 -3x - 4
Combine like terms
x^2 -x -6
Answer:
2+2+2=6 and 6+6+6+6+6=30
Step-by-step explanation:
Answer:
4 Hours
Step-by-step explanation:
Let's say that the rate of the machines 1/x, because every time they complete an order, it takes them x hours. To find x, we have to add the the rates of the individual machines, which would equal the rate of the machines working together. We know that there are four machines working together at the same rate, and it took them 32 hours.
So:
1/x + 1/x + 1/x + 1/x = 1/32
1/4x = 1/32
4x = 32
x = 8
Thus, the rate of the machines is 1/8.
Now we have to find the time of the order with only half of the machines working together. This time, we don't know the combined rate, so I'll substitute it for y.
1/8 + 1/8 = 1/y
1/4 = 1/y
y = 4
The time taken to complete it is 4 hours.
The answer is 771/100 or 7 and 71/100
You divide by 1 but to do that, you must move the decimal so that there are only whole numbers, but if you move the decimal, then you have to do the same for 1 but you move it to the right instead of the left=771./100.
