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
S (SOA) An annuity pays 1 at then end of each year for n years. Using an annual effective interest rate of i, the accumulated va
Reptile [31]

Answer:

8

Step-by-step explanation:

Given:

Annuity at time (n + 1) = 13.776

(1 + i)ⁿ = 2.476

Now,

S_{n/i}=\frac{(1+i)^n-1}{d}

here, d = \frac{i}{1-i}

thus,

13.776=\frac{2.476-1}{d}

or

d = 0.1071

therefore,

d = \frac{i}{1+i}

or

0.1071 = \frac{i}{1+i}

or

0.1071 + 0.1071i = i

or

i = 0.1199

now,

(1 + i)ⁿ = 2.476

or

(1 + 0.1199)ⁿ = 2.476

1.1199ⁿ = 2.476

taking log both sides

n × log(1.1199) = log(2.476)

or

n = 8.006 ≈ 8

hence,

the answer is 8

7 0
3 years ago
What is real world problem that can be solved by using the equation 5x = 45
Harrizon [31]
You have 5 apples, together they cost 45 dollars, how much does each apple cost.

5x/5
45/5

x=9
8 0
3 years ago
Alex ate 4 less the 2 times the slices of pizza that Oliver ate.If Oliver ate 8 slices of pizza how many slices did alex eat?
Fofino [41]

Answer: 12

Step-by-step explanation:  2 times of 8 is 16, but it says 4 less, so you subtract 4 and that equals 12.

 

7 0
2 years ago
20. Lee uses Bill Payer from his bank account to pay his internet bill. Lee pays the same amount each month.
NARA [144]
It's the same amount each month, for a year. So:
total money ÷ times money was taken out= how much has been taken out.

$600÷12=50
3 0
3 years ago
Area of a triangle (picture provided)
nignag [31]

Answer:

C

Step-by-step explanation:

The area of triangles is 1/2 x b x h.

Plug them in!

1/2 x 24 x 35

Simplify.

12 x 35

420 square inches

6 0
3 years ago
Other questions:
  • How many times can 52 go into 8
    12·2 answers
  • Find the distance between A and B.
    13·1 answer
  • -Ready
    11·1 answer
  • Juanita did this work to solve an equation. Did she make an error?
    14·1 answer
  • One week you spent $24 on 6 subway tickets and 4 express bus tickets. the next week you spent $27 on 3 subway tickets and 7 expr
    13·1 answer
  • I need some help on this question! QUICKLY PLEASE!!!!
    6·1 answer
  • Find the dimensions of a rectangle whose area is 306cm2 and whose perimeter is 70 cm
    6·1 answer
  • F(−2) = ________ need help
    11·1 answer
  • a line with the slope of -5 passes through the points (-3, -5) and (-4, teat parentheses. What is the value of t​
    8·1 answer
  • The dimensions of a rectangular prism are given in the net shown.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!