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Murrr4er [49]
3 years ago
15

The equations y = (- 16t - 2)(t - 1) and y = - 16t ^ 2 + 14t + 2 represent the height in feet of a beach ball thrown by a child

as a function of time, tin seconds .
Mathematics
1 answer:
KatRina [158]3 years ago
5 0

Answer:

<em>0.4375secs </em>

Step-by-step explanation:

Given the height of the beach ball in feet expressed as;

y = -16t^2+14t+2 as the height that represents the height of the ball, we can look for the time taken by the ball to reach its maximum height

At the max height, the velocity is zero i.e dt/dt  = 0

dy/dt = -32t + 14

0 = -32t + 14

32t = 14

t = 14/32

t = 0.4375secs

<em>Hence it took the ball 0.4375secs to reach its maximum height</em>

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Which of the following system of linear inequalities is represented by the solution graphed below
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Answer:

C

Step-by-step explanation:

The wanted region(shaded part)..is greater or equal to 2 due to the bold line...so hence the first inequality is....y is greater than or equal to 2

And the second solution....is y is less than x because of the continuous broken line...hence it cant be less than or equal to

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3 years ago
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Lines x and y are parallel.
densk [106]

On the bottom line, the 106 and number 1 make a straight line and needs to equal 180 degrees.

This means number 1 = 180-106 = 74 degrees.

Because x and y are parallel, the top outside angle is the same as number 1.

6x +8 = 74

Subtract 8 from both sides:

6x = 66

divide both sides by 6:

x = 66 / 6

x = 11

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7(11) -2 = 77-2 = 75 degrees.

The three inside angles need to equal 180 degrees.

Angle 2 = 180 - 74 - 75 = 31 degrees.

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3 years ago
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A length of 5 cm on a map represents a distance of 2km on the ground .What length on the map represents an actual distance of 80
kipiarov [429]

Answer:

which means easily we understand by SI UNIT

0.05m=2kM

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Step-by-step explanation:

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2 years ago
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Solve for the literal equation for z: 3z-s=r
Vikentia [17]

Answer:

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8 0
3 years ago
PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!!
aleksley [76]

The length of PR is 4.4 units.

Explanation:

It is given that the length of the hypotenuse is 10 units.

Also, the angle of R is 64°

To find the length of PR, we shall use the cosine formula,

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Here,  \theta=64, adj = PR and hyp = 10

Substituting these values in the formula, we get,

\cos 64=\frac{P R}{10}

Multiplying both sides by 10, we get,

10*\cos 64={P R}

Substituting the value for cos 64, we get,

10*0.438={P R}

Multiplying, we have,

4.38=PR

Rounding off, we get,

PR=4.4

Thus, the length of PR is 4.4 units.

8 0
4 years ago
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