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lions [1.4K]
3 years ago
13

A ball is thrown straight up into the air. The height of the ball t seconds after it is thrown is modeled by the equation h(t) =

48t – 16t2. After how many seconds will the ball hit the ground?
A. 1

B. 1.5

C. 3

D. 3.5
Mathematics
1 answer:
Nookie1986 [14]3 years ago
6 0

Answer:

b

Step-by-step explanation:

gravity

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tino4ka555 [31]

Answer:

Please check the explanatio.

Step-by-step explanation:

Solving Part b)

We know that the slope-intercept form of the equation line is

y=mx+b

where m is the slope and b is the y-intercept

Given the equation

4x+2y=16

Re-writing the equation in the slope-intercept form

4x+2y=16

y=-2x+8

Here, m=-2 and b=8

Thus, the equation in the slope-intercept form will be:

y=-2x+8

Solving Part c)

As you sold two pounds of cheddar cheese.

i.e. y=2

substituting y=2 in the slope-intercept form of the line equation

y=-2x+8

2=-2x+8

Subtract 8 from both sides

-2x+8-8=2-8

-2x=-6

Divide both sides by -2

\frac{-2x}{-2}=\frac{-6}{-2}

x=3

You sold 3 pounds of swiss cheese.

Solving Part d)

y=-2x+8

putting x=2.5 in the equation

y=-2x+8

2=-2\left(2.5\right)+8

2=3

The sides are not equal

<em>FALSE</em>

Thus, x=2.5 does not make any sense in the context of the problem.

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3 years ago
How did astronomer Yi Xing (A.D. 683-727) contribute to the development of mathematics in china?
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Yi Xing invented the astronomical clock and introduced some new methods of interpolation in mathematics.

Step-by-step explanation:

Yi Xing was both an astronomer and a mathematician during the era. He invented the astronomical clock which was more accurate than the initial water and Sun's clock in use.

Furthermore, Yi Xing also discovered some new methods of interpolation in mathematics of which the meaning and interpretation became controversial. Interpolation is a method majorly in mathematics that can be used to estimate a value of a function from its discrete values. It involves first order differences and second order differences.

Also, Yi Xing was able to design a calendar in A.D. 727.

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4 years ago
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nydimaria [60]

Answer:

true, false, true

Step-by-step explanation:

it only changes the direction

8 0
3 years ago
is the relationship between the amount of the orange juice concentrate c and the amount of water w proportional? Explain. Zoe us
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Answer:  

B.12 ounces

Step-by-step explanation:

step 1

Find out the ounces of orange juice concentrate used yesterday

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