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devlian [24]
2 years ago
7

Benjamin threw a rock straight up from a cliff that was 40 feet above the water. If the height of the rock h, in feet, after t s

econds is given by the equation h=-16t^2+12t+40, how long will it take for the rock to hit the water?
Mathematics
1 answer:
viktelen [127]2 years ago
6 0
It says college mathematics so I'm assuming you have a graphing calculator.

Plug the equation into your calculator and find the x value that's in the first quadrant
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I need help someone please
Andrew [12]
G(x)=2...............
5 0
3 years ago
If Mike can tune 4 cars in 3 hours. How many cars can Mike tune in 8 hours?
motikmotik

Answer:

10 2/3 cars

Step-by-step explanation:

We can use a ratio

4 cars            x cars

------------- = -----------

3 hours          8 hours

Using cross products

4 *8 = 3 *x

32 = 3x

Divide each side by 3

32/3 = 3x/3

10 2/3 cars

5 0
2 years ago
They need 1 1/2 cups of sugar. How many 1/4 cups should they measure
tekilochka [14]
The correct answer I got was 22 cups. 11/2 ÷ 1/4 is how you set it up. Then, you do KCF which stands for keep, change, flip. So, your new expression is 11/2 × 4/1. You cross reduce 4 & 2 which makes the new expression 11/1 × 2/1. 11 times 2 is 22/1 which still equals 22.
6 0
2 years ago
Read 2 more answers
Plsss help meee!!!!!!​
Lina20 [59]

Answer:

  • given below

Step-by-step explanation:

1)

total area = rectangle area + 2 triangle area

                =  length * width = 2 ( \frac{1}{2} * base * height )

                =  7.5 * 6 + 2 (  \frac{1}{2} * 3 * 4 )

                = 57 ft²

2)

separate it into two rectangles:

length * width + length * width

  6  *   2  +  9 * 4

      48 cm²

3)

parallelogram area =  base * height

                                = 20 * 25

                                 = 500 in²

6 0
2 years ago
The stock of Company A gained 5.25% today to $21.05. What was the opening price of the stock in the beginning of the day?
SOVA2 [1]

Answer:

110.5125 is my guess

Step-by-step explanation:

hope it helps..

5 0
2 years ago
Read 2 more answers
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