1/3(-32.48 - 14.02)
= 1/3(-46.5)
= -15.5
-15.5 is the answer.
Answer:
4 hours. 1 3/4 is about 2, and 2 1/4 rounds to 2. 1/4 would round to 0, but it would not affect the estimate's accuracy much because we rounded up by 1/4 on 1 3/4 already. Philipe spent about 4 hours on activities.
Step-by-step explanation:
Answer:
The ball will hit the ground at t=2.5 seconds.
Step-by-step explanation:
Solve the quadratic equation to get the roots.
t=-0.25 and t=2.5
Answer:
90°
Step-by-step explanation:
5, 12 and 13 are the sides of a right triangle ( Pythagorean triple )
13 is the measure of the hypotenuse whose opposite angle is 90°