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marta [7]
4 years ago
6

Sharon hits a golf ball off the ground. The function h represents the height of the golf ball, in feet, t seconds after it is hi

t. h(t) = -16(t − 3)2 + 144 Which of the following statements describes this situation correctly?
Mathematics
1 answer:
Ulleksa [173]4 years ago
6 0

Answer:

The golf ball will be on the ground at 0 and 6 seconds.

Step-by-step explanation:

Just took the test on Plato

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12) Perry worked 3 hours at Pet Smart on Saturday. He gets paid an hourly rate. He got
Sloan [31]

Answer:

$8 per hours

Step-by-step explanation:

4 0
3 years ago
After the first term in a sequence, the ratio of each term to the preceding term is r. If the first term is a, what is the third
irinina [24]

Answer:

The 3rd term is

ar^2

Step-by-step explanation:

From the given information, the first term of the sequence is

a_1=a

The common ratio of the sequence is

r

The explicit formula for a geometric sequence is :

a_n=a_1(r^{n-1})

To find the third term, we put n=3 to get:

a_n=a(r^{3-1})

This simplifies to:

a_3=ar^2

7 0
3 years ago
A ball is thrown vertically upwards with an initial velocity of 22 m/s. When will its speed be 10
gogolik [260]

Answer:

<em>The ball's speed will be 10 m/s at t=1.22 seconds</em>

Step-by-step explanation:

The vertical motion of an object is controlled by the force of gravity. This means that there is a non-zero net force acting on the object that makes it accelerate downwards.

If the object is thrown upwards at speed vo, its speed at time t is:

v_f=v_o-g.t

Where g is the acceleration of gravity g=9.8 m/s^2.

Our ball is thrown upwards with v0=22 m/s. We need to calculate the time when its speed is vf=10 m/s.

Solving the above equation for t:

\displaystyle t=\frac{v_o-v_f}{g}

Substituting:

\displaystyle t=\frac{22-10}{9.8}=\frac{12}{9.8}

t=1.22 seconds

The ball's speed will be 10 m/s at t=1.22 seconds

8 0
3 years ago
Evaluate the expression when b=-3 and x=4.<br> b-5x
Anton [14]

Answer:

-23

Step-by-step explanation:

b - 5x

-3 - 5(4)

-3 - 20

-23

4 0
3 years ago
A 12-foot ladder is placed four feet from the base of a wall.
nikitadnepr [17]

Answer:8sqrt 2 or sqrt 128

Step-by-step explanation:

We can use the Pythagorean Theorem. Since the ladder is leaning against the wall, it is the hypotenuse. It is also 4 feet away from the wall so 12^2-4^2=b^2 b^2=128 so b=8sqrt 2 or sqrt 128.

4 0
3 years ago
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