1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mademuasel [1]
3 years ago
8

A model jet is fired up in the air from a 16-foot platform with an initial upward velocity of 52 feet per second . The height of

the jet above the ground after t seconds is given by the equation h=-16t^2+52t+16 where h is the height of the jet in feet and t is the time in seconds since it is launched . What is the maximum height the jet reaches , to the nearest foot
A) 777 feet
B)58 feet
C)30 feet
D)16 feet
Mathematics
1 answer:
Alex17521 [72]3 years ago
7 0

Answer:

B.    58 feet to nearest foot.

Step-by-step explanation:

h = -16t^2 + 52t + 16

Convert to vertex form:-

= -16 [(t^2 - 3.25t) + 16

= -16 [ (t - 1.625)^2  - (1.625)^2 ] + 16

= -16 (t - 1.625)^2 + 42.25 + 16

= -16 (t - 1.625)^2  + 58.25.

The maximum height occurs when t = 1.625 seconds and its equal to 58 feet.


You might be interested in
Which quadratic function shows a y-intercept of 4 and a maximum value of 5
Elena L [17]

Answer:

The 4th graph

Step-by-step explanation:

To have a maximum value, your parabola would have to open downwards. So the first 2 are wrong. Since your y-intercept is positive 4, your graph would have to touch the y axis at 4. The 3rd graph is wrong since it touches the y-axis at a negative point. The correct answer would be the 4th answer choice.

8 0
2 years ago
Work out the volume of a prism with an area of 10m squared and a length of 8m
Jobisdone [24]
Is it 80 m I think that’s the answer
4 0
3 years ago
Is this correct or no <br><br> Please help me
k0ka [10]

Answer:

I got y = 10

or

y = 24

or the answer is y = -5x since the 4 stays the same but the -5x changes

I feel like you have to replace with x with the numbers

Step-by-step explanation:

3 0
3 years ago
The formula for the volume of a cone is V=1/3 pi r2h the radius r of the cone may be expressed as
Naily [24]

r = √(3V/πh)

multiply both sides by 3 to eliminate the fraction

πr²h = 3V ( divide both sides by πh )

r² = 3V/ πh ( take the square root of both sides )

r = √(3V/πh)


3 0
2 years ago
Read 2 more answers
What is the solution of 5x+4=7
Nastasia [14]
The solution is x = 3/5
5 0
2 years ago
Read 2 more answers
Other questions:
  • Find the sum of first 20 to terms of an ap in which d is equal to 7 and 20 second term is 149​
    9·2 answers
  • The record high January temperature in Austin, Texas, is 90 degrees F The record low January temperature is -7 degrees F, Find t
    7·1 answer
  • The abc company has a net income of $56.000, ASSETS AT BEGINNING OF YEAR ARE $263.000 AND ASSETS AT END OF YEAR ARE $313.000. wH
    14·2 answers
  • A circle has an area of 144л cm2. Find the circumference.
    7·1 answer
  • Rewrite 7 − 8 using the additive inverse
    7·1 answer
  • What is 309,099,990 in standard form
    15·1 answer
  • Find two numbers that round to 387.4 when rounded to the nearest ten
    9·1 answer
  • PLSSS HELP IF YOU TURLY KNOW THISS
    10·2 answers
  • Dmitri wants to cover the top and sides of this box with glass tiles that are 1 cm square. How many tiles will he need? Dmitri w
    9·1 answer
  • The second part of the problem is where i need help. The answers i have there have been given by other tutors
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!