Answer: -9
Step-by-step explanation: when you add unwhole numbers they move father into the negatives if its easier you can take away the - mark and add 7 + 2 which is nine then you put the sign back good luck love!
Answer A and E
Step-by-step explanation:
I did this question
Answer: r=6
Step-by-step explanation:
Because if 42 equals 7 times r you just have to divide 42 by 7.
Answer:
Since g(x) = f(2x), this means we substitute 2x in place of x for f(x):
g(x) = f(2x) = (2x)² = 4x²
Graphing this, the parabola is not moved from the parent graph f(x) = x², but the graph is compressed horizontally by a factor of 4.Step-by-step explanation:
At three hours as car a has already traveled a hour which making it three therefore making car b equal 2 hours or in a math equation 40×3=car b and 60×2=car a