Answer:
67
Step-by-step explanation:
do the math. or just use a calculator because there is no sign between the -15 and the -4 so you multiply. it turns positive the add the 7. easy peezy
Answer:
1.6, but can be rounded to 2
Step-by-step explanation:
Answer:
45 minutes
Step-by-step explanation:
They both have 127 pages after 45 minutes.
Answer:
26
8 2/3
Step-by-step explanation:
4 1/3 ×6
13/3×6
13/1×2=26
2 3/5 × 3 1/3
13/5 × 10/3
13/1 × 2/3
26/3=8 2/3
We have two options in the case of the equation for parabola y=ax²:
1) in the case that a is negative the parabola opens down
2) in the case that a is positive the parabola opens up
So the correct answer is: if a is positive, the parabola opens up.