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11Alexandr11 [23.1K]
2 years ago
9

4. A discus is thrown from a height of 4 feet with an initial velocity of 65 ft/s at an angle of 44° with the horizontal. How lo

ng will it take for the discus to reach the ground?

Mathematics
2 answers:
joja [24]2 years ago
7 0

I believe the time would be about 4 seconds

Monica [59]2 years ago
6 0

Answer:

9.29 seconds

Step-by-step explanation:

Attached is my work because it's difficult to type

Attached is an image of where I got my equations from

the answer may be wrong

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definition of cosine, definition of sine, pythagorean theorem, substitution, laws of exponents.

Step-by-step explanation:

8 0
3 years ago
9.
Elena L [17]

<u>Given</u>:

The distance (in kilometers) Dora hiked is modeled as a function of time.

We need to determine the average rate of change in distance hiked, measured in kilometers per hour, between 8:30 am to 1:30 pm.

<u>Average rate of change:</u>

Let us write the time and the distance hiked in coordinates for the time 8:30 am and 1:30 pm.

Thus, the coordinates are (8.30, 4) and (1,12)

The average rate of change can be determined using the formula,

m=\frac{y_2-y_1}{x_2-x_1}

Substituting the points (8.30, 4) and (1.30,12), we get;

m=\frac{12-4}{1.30-8.30}

m=\frac{8}{-7}

m=-1.14

Rounding off to the nearest whole number, we get;

m=-1

Therefore, the average rate of change is -1.

7 0
3 years ago
What are two fractions between 3/5 and 4/5
Scrat [10]
Two fractions between 3/5 and 4/5 are 13/20 and 11/15
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