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
disa [49]
3 years ago
8

I don't know how to do this please help explain how to do it aswell as give the answer so i understand

Mathematics
1 answer:
Zinaida [17]3 years ago
4 0

<u>We are given:</u>

The function: y = -16t² + 64

where y is the height from ground, t seconds after falling

<u>Part A:</u>

when the droplet would hit the ground, it's height from the ground will be 0

replacing that in the given function:

0 = -16t² + 64

16t² = 64                          [adding 16t² on both sides]

t² = 4                                [dividing both sides by 16]

t = 2 seconds                  [taking square root of both sides]

<u>Part B:</u>

for second droplet,

height from ground = 16 feet

time taken = t seconds

acceleration due to gravity = 10 m/s²

initial velocity = 0 m/s

h = ut + (1/2)at²                 [second equation of motion]

16 = (0)(t) + (1/2)(10)(t²)

16 = 5t²

t² = 16/5

t = 1.8 seconds (approx)

Therefore, the second droplet takes the least amount time to hit the ground

You might be interested in
We used these functions to represent the two sides of the equation:
katrin [286]

The solution to the system of equation graphed is (-1, -3)

<h3>Solution to system of equation</h3>

Given the system of equations graphed on the plane expressed as:

f(x) = 3x

g(x) = 4x + 1

Equate

f(x) = g(x)

3x = 4x + 1

3x - 4x = 1

-x = 1

x = -1

Determine the value of y

y = 3x

y = 3(-1)

y = -3

Hence the solution to the system of equation graphed is (-1, -3)

Learn more on system of equation here: brainly.com/question/847634

#SPJ1

4 0
2 years ago
Where do parabolas store their holiday decorations?
Naya [18.7K]

Answer:

where...................

Step-by-step explanation:

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

6 0
3 years ago
48 POINTS ANSWER ASAP​
SVETLANKA909090 [29]

Rewrite 5% as a decimal and then multiply by 60.

X = 0.05 x 60

8 0
3 years ago
Read 2 more answers
Which of these numbers is irrational<br><br> (The demontar on the last fraction is 3 BTW)
nataly862011 [7]

An irrational number can be written as a decimal, but not as a fraction. An irrational number has endless non-repeating digits to the right of the decimal point. The answer is A. Please mark brainliest

3 0
3 years ago
Read 2 more answers
Please help me!!!!
Vlad [161]

Answer:

omg thats alot of words-

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • property of real numbers that states that the order in which numbers are added or multiplied dose not change the value​
    10·1 answer
  • Factor a^2b^2-7ab+10
    9·1 answer
  • PLEASE HELP ILL GIVE 15 POINTS PLUS BRAINLIEST FOR CORRECT ANSWER! <br><br> Convert –18° to radians.
    13·1 answer
  • What percent of 12 is 48<br> A. 0.25%<br> B. 4% <br> C. 25%<br> D. 40% <br> E. 400%
    14·1 answer
  • PLEASE help asap if you know the answer!!!!! quadratic functions : vertex form thank you!
    6·1 answer
  • 10 divisions by the number <br>210
    6·1 answer
  • I need some friends please someone who are bored can ch.at with me​
    7·2 answers
  • Example of variations natural resources
    8·1 answer
  • A cube is a rectangular prism with the same measurement for length, width, and height. If a cube is 4 inches tall, what is it’s
    13·1 answer
  • Round each to the nearest cent.<br> $1,145.343<br> and<br> $264.5176
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!