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
emmasim [6.3K]
3 years ago
13

A ball is thrown from a height of 40 meters with an initial downward velocity of 5 m/s

Mathematics
1 answer:
arsen [322]3 years ago
7 0

0=40-10t-5t^2

t^2+2t-8=0

(t+4)(t-2)=0

t=-4 (not a solution) or t=2

Answer: after 2 seconds

You might be interested in
How do i find angle measurements in an isosceles triangle??
Sholpan [36]
In an isosceles triangles the sides that are congruent form two congruent angles...you should be given one of those angle measures or the other one...if you are given one of the angle measure formed by the congruent side you know the one opposite it is the same and you know all the measures of angles in a triangle = 180 so you should be able to find them all
3 0
3 years ago
The ratio of red tacks to blue tacks on the bulletin board is 3 to 5. There are 50 blue tacks. How many red tacks are there?
bazaltina [42]

Answer:

If we want our ratio to stay the same (3 to 5), we'll need to pair a set of 3 blue tacks with every set of 5 red tacks. In a group of 50, we can make 10 groups of 5 red tacks, so we'll also need 10 groups of 3 blue tacks, which gives us a total of 30 blue tacks

5 0
3 years ago
Help me pls pls pls
vovangra [49]

Answer:

F, J, K

Step-by-step explanation:

The other choices are regarded as expressions not equations, in which you can find the value of the the given variable.

4 0
2 years ago
QUICK HELP!!!!
sasho [114]

Answer:

y =  \frac{3}{4} x -  \frac{3}{2}

Step-by-step explanation:

y =  \frac{3}{4} x - 1→y - y1 = m( x - x1)

y - 6 =  \frac{3}{4} (x - 6)→y - 6 =  \frac{3}{4} x - 6

2(y - 6) = 2( \frac{3}{4} )(x - 6)

2y - 6=  \frac{3}{2}( x - 6)

2y - 6 =  \frac{3}{2} x - 9

- 6 \: from \: both \: sides

2y  =  \frac{3}{2} x - 3

divede \: by \: 2 \: on \: both \: sides

y =  \frac{3}{4} x -  \frac{3}{2}

Hope this helps!

7 0
3 years ago
Which graph represents a function with a rate of change of 0.5? On a coordinate plane, a line with negative slope goes through p
Law Incorporation [45]

Answer:

C

Step-by-step explanation:

I took the test

:)

5 0
3 years ago
Read 2 more answers
Other questions:
  • Customers at a gas station pay with a credit card (A), debit card (B), or cash (C). Assume that successive customers make indepe
    8·1 answer
  • What is the range of 82, 135, 53, 44, 79, 36, 20, 56?<br><br> 99<br> 105<br> 115
    5·2 answers
  • What is the answer to<br><br> 7 y = 84
    10·1 answer
  • WILL MARK BRAINLIEST!!!!!!!!
    14·1 answer
  • Maria, an experienced shipping clerk, can fill a certain order in 9 hours. Jim, a new clerk, needs 11 hours to do the same job.
    12·1 answer
  • Draw a line representing the "run" and a line representing the "rise" of the line. State the slope of the line in simplest form.
    14·1 answer
  • Last saturday, Flavia walked her dog 1 2/5 miles.
    7·2 answers
  • Ralph opened up his checking account with $100. On Monday, he withdrew $45 to purchase a pair of jeans. On Wednesday, he deposit
    10·2 answers
  • Is 68 prime or composite
    12·2 answers
  • Solve this equation -1/2 ( -3y + 10)
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!