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
wlad13 [49]
3 years ago
10

I'll give 99 points

Mathematics
2 answers:
photoshop1234 [79]3 years ago
8 0

Maximum height is at dH/dt=0

H= -16T^2+80T+5

dH/dt=-32T+80

-32T+80=0

32T=80

T=2.5s when height is max

Hmax=-16(2.5)^2+80*2.5)+5

=105ft

catching the ball at 5' means solve for T at H=5

H= -16T^2+80T+5=5

-16T^2+80T=0

-16T(T-5)=0

so T=0 cannot be the ans or T=5s


Leto [7]3 years ago
3 0
<span>H= -16T^2+80T+5
so its vertex is at T=b/2a=80/(2*(-16))=2.5
H(2.5)=-16*2.5^2+80*2.5+5=105
last one
H=5
</span>-16T^2+80T+5=5
-16T^2+80T=0
T=0 when ball is thrown or T=5 when it is caught

You might be interested in
Solve 2|3x-4|+4=12 show your work
slamgirl [31]

Answer:

0.6

Step-by-step explanation:

2×3x+4+4=12

6X+8=12

6x=12-8

6x=4

Divide by 6

X=0.6

5 0
3 years ago
A football field is 160 feet wide and 360 feet in length. What is the distance around the field?
charle [14.2K]

Answer: 160 + 160 = 320

360 + 360 = 720

720 + 320 = 1040

6 0
3 years ago
Simpliest radical form for the square root of 72​
DIA [1.3K]

Answer:

√72=2⋅3√2.

Step-by-step explanation:

This is your answer I am pretty sure this is correct.

If not please let me know.

6 0
2 years ago
Andrea deposited 138 into her bank account. Write a integer to represent the deposit
Sonbull [250]
Hello!

Depositing just means adding, ao Andrea added 138 to her account.

The integer that would represent the doposite is: +138

I really hope you found this helpful! :)
8 0
3 years ago
Read 2 more answers
What was done wrong ?
atroni [7]
You didn't write the (-2/7) as a power; you were supposed to do b to the power of -2 over 7, which is what the other person done in your other post regarding this
4 0
3 years ago
Other questions:
  • Compare 4/5 3/4 and 9/10
    10·1 answer
  • If you answer ever single question I will mark you as brainliest :) plz hurry
    8·1 answer
  • What value of c makes the equation -3c/4=24 true ?
    10·2 answers
  • Melinda uses 3 cups of salt for every 5 cups of flour to make modeling clay. How much flour will she use when she uses 30 cups o
    7·2 answers
  • Somebody PLEASE HELP ME I DONT KNOW WHICH ONE IS THE ANSWER A, B,C,D
    13·1 answer
  • Probability is used when describing a function of a parameter given an outcome. For example, if a coin is flipped 10 times and i
    5·1 answer
  • Just out of curiosity, what is (-7)-(+6)?
    5·1 answer
  • Let r and s be the roots of x^2 - 6x + 2 = 0. Find (r - s)^2.
    12·1 answer
  • I need the answer now please
    6·1 answer
  • A person invests 8000 dollars in a bank. The bank pays 6.5% interest compounded quarterly. To the nearest tenth of a year, how l
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!