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kirill [66]
3 years ago
7

How can I calculate the maximum height of the ball? h=-16t^2+vt+h v is the initial velocity and I got 4.3cm h is the initial hei

ght and I got 14cm Range of the ball is 1.954m and the time in air is 2.1 When I solve the maximum height of the ball, it need to be ft/s.
Mathematics
1 answer:
Vitek1552 [10]3 years ago
7 0

Step-by-step explanation:

The path followed by the ball as a function of time is given by :

h=-16t^2+vt+h

Where

v is initial velocity and h is initial height,

v = 4.3 cm/s = 0.043 m/s and h = 14 cm = 0.14 m

The equation becomes,

h=-16t^2+0.043t+0.14 ....(1)

It is a quadratic equation,

t = 0.095 s

Put the value of t in equation (1).

h=-16(0.095)^2+0.043(0.095)+0.14\\\\h=-0.000315\ m

or

h = -0.00103 ft (negative sign shows height is in negative direction)

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Which expression is equivalent to 4 (2x + 1) - (-6x)?
vlabodo [156]
<span>4 (2x + 1) - (-6x)
=8x + 4 + 6x
= 14x + 4

answer

</span><span>F. 14x + 4 </span>
4 0
3 years ago
A local hospital currently has 184 male patients. If the ratio of male to female patients is 4:3, how many female patients are t
Afina-wow [57]

There are 138 female patients in the hospital.

<h3>Solving word problems involving ratios.</h3>

The solution to the word problem involving ratios in the given problem can be determined as follows.

From the given information:

The total number of people in the hospital = male + female

= 184 + x(unknown)

  • If the ratio of male to female is 4: 3.
  • The total ratio is 4+3 = 7

The ratio of males in the hospital is:

\mathbf{184= \dfrac{4}{7} \times x }

\mathbf{184\times 7= 4 x }

x = 322

The number of female patients in the hospital can now be computed as:

\mathbf{=\dfrac{3}{7}\times 322}

= 138 female patients

Check:

The total number of people in the hospital is:

= 184 + 138

= 322 patients

Learn more about word problems here:

brainly.com/question/13818690

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3 0
1 year ago
a student answered 86 problems on a test correctly and received a grade 98% how many problems were on the test if all the proble
maxonik [38]
98% Grade was achieved, so 0.98 of the questions were answered correctly.

n = number of problems

\frac{86}{n} = 0.98  \\  \\ n =  \frac{86}{0.98}  \\  \\ n = 87.755...

Our final answer can't be a decimal, so we round it to:

n = 87
4 0
3 years ago
Solve by subtraction y=-2x-4 <br> y=2x-12<br><br> please show work!
Luden [163]

Answer:

x=2, y = -8

Step-by-step explanation:

y=-2x-4

y=2x-12

-----------------

Subtract the two equations

y=-2x-4

-y=-2x+12

-----------------

0 = -4x +8

Subtract 8 from each side

-8 = -4x+8-8

-8 = -4x

Divide by -4

-8/-8 = -4x/-4

2 =x

Then solve for y

y = -2x-4

y = -2(2) -4

y = -4-4

y = -8

3 0
3 years ago
Read 2 more answers
The leg of a right triangle is 2 units and the hypotenuse is 4 units. What is the length, in units, of the other leg of the tria
const2013 [10]
A^2 + b^2 = c^2....a and b are the legs and c is the hypotenuse
2^2 + b^2 = 4^2
4 + b^2 = 16
b^2 = 16 - 4
b^2 = 12
b = sqrt 12 <=== square root of 12 units
7 0
3 years ago
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