Answer:
f(x) is the total cost and x is the number of peaches.
We know that each peach costs $0.75. This means the expression 0.75x represents the total cost of peaches; this makes x represent the number of peaches.
We also know that $2.25 is the cost of juice. Adding it to the cost of peaches gives us the total cost; this means f(x) represents the total cost.
See below hope it helps
Answer: 8.625 m
Step by step explanation:
3.45 m/s * 2.5 s = 8.625 m
You have 100
and samy takes 3
100-3
Mark takes 5
100-3-5
and Lizzy takes 30
100-3-5-30
Solve: 100-3-5-30
<span>62
<span><span><span><span><span>62 is your answer.
You just basically subtract. :)</span></span></span></span></span></span><span />
We need a picture in order to know the answer.
Answer:
6.53 s
Step-by-step explanation:
The height of the cannon ball is represented by a quadratic function as:
h(t) = -4.9t² + 30.5t +9.8.
At 0 s (i.e. t = 0), h(0) = -4.9(0²) + 30.5(0) + 9.8 = 9.8
That means that the cannon ball is initially at a height of 9.8 m above the ground. To calculate the time it takes the ball to touch the ground, we use:
h(t) = -4.9t² + 30.5t +9.8
It touches the ground when h(t) = 0. Hence:
0 = -4.9t² + 30.5t + 9.8
Solving the above quadratic equation gives:
t = 6.53 s and t = -0.31 s
Since the time cannot be negative, hence t = 6.53 s. Therefore it takes the ball 6.53 s to hit the ground.
