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
7nadin3 [17]
3 years ago
13

NEED HELP ASAP! 40 POINTS!

Mathematics
2 answers:
lubasha [3.4K]3 years ago
6 0

Since the functions represent the heights of the rockets, and we are trying to find when the heights are the same, we essentially just want to know where the functions equal each other.


To find this, let's set both functions equal to each other and solve:

-16x^2 + 74x + 9 = -16x^2 + 82x

  • Set up equation

74x + 9 = 82x

  • Add 16x^2 to both sides of the equation

9 = 8x

  • Subtract 74x from both sides of the equation

\boxed{x = \dfrac{9}{8}}

  • Divide both sides of the equation by 8

Our answer is 9/8 seconds, or approximately 1.13 seconds.

vladimir1956 [14]3 years ago
3 0

Same height when both equations are equal

-16x^2 +  74x + 9 = -16x^2 + 82x

82x - 74x = 9

8x = 9

x = 9/8

x = 1.125

x = 1.13 ---->rounded to nearest hundredths of seconds

answer

1.13 seconds


You might be interested in
Alternate exterior angles ​
exis [7]

Answer:

When  \: two  \: lines  \: are \:  crossed \:  by  \: another \:  line \:  (called  \: the \:  Transversal \: ):  \: Alternate \:  Interior  \: Angles \:  are  \: a \:  pair  \: of  \: angles  \: on \:  the \:  inner  \: side  \: of  \: each  \: of \:  those  \\  \\  \\  \\  \\ two \:  lines  \: but  \: on \:  opposite  \: sides  \: of  \: the  \: transversal.

hope it helps if it helps don'tforget to like and mark

8 0
3 years ago
What’s the slope of y=4x-5
vlabodo [156]

Answer: The slope is 4 and the Y intercept is 5.

Step-by-step explanation: hope this helps <3

8 0
3 years ago
How do you solve: 2(7-x)+4x=20
Angelina_Jolie [31]
First expand it
Next subtract 14 - 2x + 4x so it can be 14 + 2x
Next subtract 14 from both sides
Next subtract 20 - 14 so it can be 6
Then divide both sides by 2
And lastly reduce the fraction 6/2 and once u reduce it u have your answer which is x = 3.
5 0
2 years ago
Solve for x:<br> (x+4) = 7.(1 point)<br> 2<br> Ox=3<br> Ox=5<br> Ox=6<br> O x = 10
MArishka [77]

Answer:

A

Step-by-step explanation:

So we have the equation:

x+4=7

To solve for x, subtract 4 from both sides:

(x+4)-4=(7)-4

The left side cancels. Subtract on the right:

x=3

So, the value of x is 3.

And our answer is A.

And we're done!

5 0
3 years ago
Competition is most intense between closely related species that __________. have different beak sizes use different resources u
kupik [55]
Competition is most intense between closely related species that use the same resources, as both species are competing for these limited resources.
3 0
2 years ago
Other questions:
  • Amelia needs 3 2/3 cups of sugar to make cupcakes. Which improper fraction names this amount?
    8·2 answers
  • ) What is the difference between a sequence and a series? A sequence is an ordered list of numbers whereas a series is an unorde
    14·1 answer
  • Abe deposited $600 in a savings account with simple interest. One year later, he had earned
    9·1 answer
  • I WILL GIVE BRAINLIEST
    5·1 answer
  • Given that f(x) = 2x2 − 96, find x.
    10·2 answers
  • At what value of x does the graph of the following function f(x) have a vertical asymptote?
    12·1 answer
  • What is 6divided by 3/4
    5·2 answers
  • Brainlyess 2+2?
    11·1 answer
  • Is the fraction 4/5 proper or improper
    9·1 answer
  • Please help. I need a good step by step explanation
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!