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
MissTica
2 years ago
10

A roller coaster’s height is given by the equation h = –.025t2 + 4t + 50, where t represents the time in seconds. How long will

it take riders to pass over the hill and reach ground level? Hint: Set h = 0.
Mathematics
1 answer:
Semenov [28]2 years ago
5 0

It will take the roller coaster 171.652 seconds to pass over the hill and reach ground level

<h3>How to determine the time to hit the ground?</h3>

The function is given as:

h = –.025t^2 + 4t + 50

Set h = 0.

So, we have:

–.025t^2 + 4t + 50 = 0

Using a graphing calculator, we have:

t = -11.652 and t = 171.652

Time cannot be negative.

So, we have:

t = 171.652

Hence, it will take the roller coaster 171.652 seconds to pass over the hill and reach ground level

Read more about quadratic functions at:

brainly.com/question/27958964

#SPJ1

You might be interested in
Converting decimals into whole nubers
xxMikexx [17]

Answer:you multiply the decimal by the number behind the decimal

Step-by-step explanation:

6.00

6.00x100

6

4 0
3 years ago
Please help me do number 5
Blizzard [7]
Make more sense ou of this question and I can help you out more ok?
7 0
3 years ago
A researcher conducts a hypothesis test using a sample of n = 40 from an unknown population. What is the df value for the t stat
aliya0001 [1]

Answer:

Correct option: b 39.

Step-by-step explanation:

A one-sample (or one mean) t-test is applied to test whether the population-parameter is significantly different from some hypothetical value.

The degrees of freedom of the <em>t</em>-test is:

df = n - 1

It is provided that the sample size is, <em>n</em> = 40.

Compute the degrees of freedom as follows:

df = n - 1

   = 40 - 1

   = 39

Thus, the correct option is b.

3 0
3 years ago
The ratio of students who prefer comedic plays to students who prefer romantic plays in the drama club is 2 to 3. If all student
masha68 [24]

Answer:

A

Step-by-step explanation:

2 to 3 means that the ratio of romantic students has a numerator of 3. If there is a numerator of 3 the denominator has to be 5 because 2+3 is five if the fraction is 3/5, then the answer is A.

4 0
3 years ago
Please give me correct answer​
bagirrra123 [75]

Answer:

7.a. 8.b, yan. po. ang. sagot

5 0
2 years ago
Other questions:
  • I need help um i dont need to to my work or check my answer just
    10·2 answers
  • Which equation is equivalent to 3[x + 3(4x – 5)] = 15x – 24?15x – 15 = 15x – 2415x – 5 = 15x – 2439x – 45 = 15x – 2439x – 15 = 1
    11·1 answer
  • An accident at an oil drilling platform is causing a circular oil slick. The slick is 0.07 foot thick, and when the radius of th
    12·1 answer
  • ?÷(−7)=(−4) what is the missing number
    14·2 answers
  • The jeweler buys gold for 1235.55 per ounce and resells it for 1376.44 per ounce how much profit does the jeweler make from buyi
    9·1 answer
  • What is -2 1/2 x -3 1/3
    14·1 answer
  • 40% of the students in Mr. Watson's class speak a second language. If 10 students speak a second language, how many students are
    8·1 answer
  • A runner finished his marathon in 180 minutes. A marathon is around 26 miles.
    7·2 answers
  • Which of the two numbers is a better estimate for the square root of 12? Explain.
    7·1 answer
  • What is the solution to the system x + y = 5 and 3x - y = 3?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!