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
nika2105 [10]
3 years ago
14

A pen drops from the top of a desk that is 4 feet tall. The distance from the pen to the ground can be modeled by the equation b

elow, where h(t) is the height from the ground and t is the time in seconds, How long will it take for the pen to reach the ground? Round your answer to the nearest tenth of a second
h(t)=-16t^2+4
Mathematics
1 answer:
Tcecarenko [31]3 years ago
4 0

Answer:

0.5 seconds

Step-by-step explanation:

On the ground, height is 0

-16t² + 4 = 0

16t² = 4

t² = 4/16

t² = ¼

t = ½

You might be interested in
A circular garden has a circumference of
omeli [17]

This solution to this problem is predicated on the fact that the circumference is just: 2\pir. A straight line going through the center of the garden would actually be the diameter, which is well known to be two times the radius of the circle, so we can say that the circumference is just:

d\pi

So, solving for both the radius and the diameter gives us:

d\pi=8xy^2\pi\\ d=8xy^2\\ \\ 2\pi r=8xy^2\pi\\ r=4xy^2

So, the length of thes traight path that goes through the center of the guardain is just 8xy^2, and we can use the radius for the next part of the problem.

The area of a circle is \pi r^2, which means we can just plug in the radius and find our area:

A=\pi r^2 \implies \\ A=\pi (4xy^2)^2\implies \\ A= 16\pi x^2y^4

So, we have found our area(16 \pi x^2 y^4) and the problem is done.

6 0
3 years ago
Pls help i need help will give correct brainlyest
Rufina [12.5K]

Answer:

here you go

Step-by-step explanation:

1 is = 2 is >

7 0
3 years ago
The lemonade stand at the county fair sells the lemonade at a price of two cups for $3.60. Complete the table at right to find w
kakasveta [241]
$3.60 for 2 cups would be $1.80 for one cup.

$3.60 for 2

$5.40 for 3

$7.20 for 4

$9 for 5

$10.80 for 6

$12.60 for 7

$14.40 for 8



4 0
3 years ago
72x9 dived by 6 because I'm doing a problem
luda_lava [24]

Answer:

648

Step-by-step explanation:

You can use a calculator or break it into smaller problems, then add them together

6 0
3 years ago
Read 2 more answers
How can you build a volcano
12345 [234]
Homemade volcano kit from walmart.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which expression represents the perimeter of the figure below?
    15·2 answers
  • Write the equation of the circle graphed below
    15·2 answers
  • The sum of Alan’s age and Bob’s age is 40.
    12·1 answer
  • How do you solve this ?
    15·1 answer
  • Suggest a fundamentally and conceptually different way that is always under the control of the researcher of making the margin o
    15·1 answer
  • I picked the last one by accident but what is the correct answer?
    8·2 answers
  • Owens Orchards sells apples in a large bag by weight. A sample of seven bags contained the following numbers of apples: 23, 19,
    15·1 answer
  • I love you NO H O M O ;)
    11·1 answer
  • Ashley received a $24 discount on a radio she bought for $98.00. What is the percent of discount she saved?
    14·2 answers
  • Immediate help needed !!!!!!!! plz help me !!!! with this question​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!