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
Simora [160]
3 years ago
8

A paper airplane was thrown from the top of a tall building. The height of the paper airplane above the ground can be found usin

g the function y = –3.5x + 42, where x is the time in seconds the airplane has been in the air.
How many seconds did it take the paper airplane to reach the ground?
Mathematics
1 answer:
padilas [110]3 years ago
4 0

Answer:

it took the airplane 12 seconds to reach the ground

Step-by-step explanation:

You might be interested in
6)
dybincka [34]

Answer:

C

Step-by-step explanation:

both 4 and -4 are 4 units away from 0

8 0
3 years ago
Read 2 more answers
What is the discriminant of the polynomial below?<br>2x + 47-9​
stepan [7]

Answer:

x = -19

Step-by-step explanation:

3 0
3 years ago
Which is the graph of the function f(x) = one-halfx2 + 2x – 6?
guapka [62]

Answer:

1/2 x^2 + 2x - 6 = 0

(1/2 x - 1)(x + 6) = 0

zeroes are 2 and -6

so the graph intersects x axis at -6 and 2  

The only one to do that is diagram A  

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
True or False-Four measurable properties of matter are mass, weight, volume, and pressure.
blagie [28]
It’s probably true as matter is either gas liquid or solid
5 0
3 years ago
2 Points
Inga [223]

Answer:

D

Step-by-step explanation:

Given

9 - 7x = (4x - 3)² + 5 ← expand the squared factor

9 - 7x = 16x² - 24x + 9 + 5, that is

9 - 7x = 16x² - 24x + 14 ( subtract 9 - 7x from both sides )

0 = 16x² - 17x + 5, that is

16x² - 17x + 5 = 0 ← in standard form → D

4 0
3 years ago
Other questions:
  • Jamie places fifteen 1 inch cubes in the bottom of a box. She adds 4 more layers of the same number of cubes to completely fill
    6·1 answer
  • 23.
    11·1 answer
  • The rate of change of the volume V with respect to time t of water leaking from a tank is proportional to the cube of the volume
    5·1 answer
  • If the volume of the pyramid shown is 12 centimeters cubed, what is its height? A rectangular pyramid with a base of 3 centimete
    6·1 answer
  • 2) As a wildlife biologist you are currently researching feral pigs in Texas and need to collect data to yield the average weigh
    7·1 answer
  • Here is a square inscribed in a circle with radius 1 meter. What is the perimeter of
    9·1 answer
  • Plz help ill give brainlyest
    12·1 answer
  • 7 girls are dancing in Circular form. In how<br>many ways can they stand in circle?​
    12·2 answers
  • Question 1
    8·1 answer
  • U = {p, q, r, s, t, u, v, w}
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!