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
Kipish [7]
3 years ago
6

Can someone help me with number 8 plz

Mathematics
1 answer:
statuscvo [17]3 years ago
7 0
We have the following equation:
 h (t) = - 16t ^ 2 + 161t + 128
 We substitute the value of h (t) = 170:
 170 = -16t ^ 2 + 161t + 128
 We rewrite the equation:
 -16t ^ 2 + 161t + 128 - 170 = 0
 -16t ^ 2 + 161t - 42 = 0
 We look for the roots of the equation:
 t1 = (161/32) + root (23233) / 32
 t2 = (161/32) - root (23233) / 32
 Answer:
 
The object is 170 feet off the ground at the following times:
 
t1 = (161/32) + root (23233) / 32
 
t2 = (161/32) - root (23233) / 32
You might be interested in
HELP ASAP
GaryK [48]

Answer:

.......................

3 0
3 years ago
5c+16.5=13.5+10c PLease answer quicly
frosja888 [35]
Remember you can do anything to an equation as long as you do it to both sides

5c+16.5=13.5+10c
minus 5c both sides
16.5=13.5+5c
minus 13.5 from both sides
3=5c
divide both sides by 5
3/5=c
4 0
3 years ago
Read 2 more answers
A bicycle wheel makes five rotations. the bicycle travels 44.48 ft. Find the diameter of the wheel in inches.
Tema [17]

Answer:

2.42 feet

Step-by-step explanation:

the bicycle wheel rotates 5 times and travels 37.94 feet, then we know that the circumference of the wheel (the outside of the wheel as it touches the ground 5 times around) is 37.94/5 = 7.588

 

Then we use the formula for the circumference of a circle: 2(pi)(radius) = circumference

 

We plug in what we know 2(3.14)(radius) = 7.588 and then solve for the radius

 

We divide 2 from both sides of the equation (3.14)(radius) = 3.794

 

We divide pi from both sides (radius) = 1.208

 

Then the last step, we multiply the radius by 2, because we need the diameter, which is double the radius

 

1.208 * 2 = 2.416 or 2.42 rounded up

 

Final answer = 2.42 feet

7 0
3 years ago
Read 2 more answers
Given F(x) =x^2, choose whether the graph moves up down left or right.
malfutka [58]

Answer:

Left 7

Step-by-step explanation:

f(x)=a(x-h)^2+k

f(x)=(x-(-7))^2

-7 of x is to the left

8 0
3 years ago
42=3(2-3h) can someone plz answer and show me how to do this
maria [59]
You have to use distributive property.<span />
4 0
3 years ago
Other questions:
  • The table below shows the values of y for different values of x:
    5·1 answer
  • Compare 5.7145... and √29
    6·1 answer
  • How should the tickets provider charge in order to maximize profit
    8·1 answer
  • Use the Divergence Theorem to evaluate S F · dS, where F(x, y, z) = z2xi + y3 3 + sin z j + (x2z + y2)k and S is the top half of
    7·1 answer
  • Sadie simplified the expression StartRoot 54 a Superscript 7 b cubed EndRoot, where a greater-than-or-equal-to 0, as shown colon
    13·2 answers
  • Fill in da boxes<br><br><br><br><br><br><br>not part of the question ​
    5·1 answer
  • out of 25 teacher 16 are married and 15 are woman ,if 6 of the man are not married ,how many woman are not married​
    11·2 answers
  • 6.71/(1.15)^4 doesn't equal 5.73
    7·2 answers
  • EFGH is translated 1 unit to the right and 5 units down.
    11·2 answers
  • A representative sample of oak trees in a forest shows the trees to have a
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!