3 years ago

I need to know how to evaluate this question

1 answer:

3 0

1.) 2+8*5-1+3
2 + ∨ ∨
2+ 40-1+3
∨
2+ 39
∨
41+3=44.

3.) 7+3-1-21/7
∨
7 + 3 - 1 - 3
∨
10 - 1- 3
∨
9-3=6. hope that helped.

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Svetllana [295]

Answer:

Step-by-step explanation:

since there is 7 teams and 12 can be the minimum we can do 7 x 12=84

this means that 3 people could possibly be on one single team.

the maximum number is 12+3=15

5 0

2 years ago

What is the minimum force required to prevent a ball weighing 22.6 lb from rolling down a ramp which is inclined at 39.0 degrees

Alona [7]

The correct answer is 14.2 lb which is choice D.

Let:

F = minimum force required to prevent ball from rolling down the ramp

The formula will be:

F = w * sin theta

F = w * sin (39 degrees)

F = 22.6 * sin (39)
= 14.2 lb (this is rounded to the nearest tenth)