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
Aleksandr [31]
4 years ago
5

The function f(x) = –10(x)(x – 4) represents the approximate height of a projectile launched from the ground into the air with a

n initial velocity of 40 meters per second. How long, from launch to landing, does the projectile stay in the air? 0 seconds 1 second 2 seconds 4 seconds
Mathematics
2 answers:
ankoles [38]4 years ago
7 0

Answer: 4 seconds is how long, 100% correct just got it right on the quiz.

sineoko [7]4 years ago
4 0
The height of the project becomes zero when it hits the ground which is also the total time at which the projectile stays in the air. Equating the function to zero:
-10(x)(x - 4) = 0
The roots of this quadratic equation are:
x = 0, and x=4

Therefore, the projectile stays in the air for
4 seconds

You might be interested in
Which of the following pair(s) of circles have l as a common internal tangent? Select ALL that apply.
kkurt [141]
It looks like only A and B, but could be trick question?
7 0
4 years ago
Read 2 more answers
James wanted to know if Earth and Mars added together were as big as Jupiter.
rewona [7]

Answer:

Mars is 6.79 X 10^6 m

Step-by-step explanation:

Mars is at a distance of 206,600,000 km from the Sun at perihelion At aphelion, Earth is at a distance of 152,100,000 km from the Sun. This is a difference of 54,500,000 km, or 34,000,000 miles.  

4 0
3 years ago
Read 2 more answers
The histogram shows the numbers of floors in several tall buildings in New york city A.10 B.11 C.41 D.55
scZoUnD [109]

Answer:

10 buildings

Step-by-step explanation:

<em>Incomplete question: Missing Attachment</em>

<em>I will answer your question with the attached histogram</em>

<em></em>

Required

Determine the number of tall buildings that had more than 60 floors

The histogram can be interpreted as follows:

\begin{array}{cccccc}{Floors} & {1-20} & {21-40} & {41-60} & {61-80} \ \\ {Buildings} & {10} & {5} & {15} & {10} \ \end{array}

More than 60 floors is represented with the following group: 61 - 80

The frequency of group 61 - 80 is 10

<em>Hence, 10 buildings had more than 60 floors</em>

3 0
3 years ago
Find the value of 8!
son4ous [18]
Answer: 8



Hope it help you
3 0
2 years ago
Which inequality represents all possible solutions of -6n &lt; -12
rewona [7]

Answer:

The only solutions would be that the numbers HAVE to be greater than 2

Step-by-step explanation:

-6n < -12

-n < -2

n > 2

5 0
3 years ago
Other questions:
  • A room is 30 feet long, 25 feet wide, and 10 feet tall. If Mickey paints the walls and the ceiling, how much surface are will he
    9·1 answer
  • George tallies up the transactions in his check register and comes up with a total balance of $221.57, but his bank statement sa
    14·2 answers
  • Question 18 4 points<br> Which Function(s) represent the Graph shown below?
    14·1 answer
  • Solve the equation. - 1/3m – 7 = 5 A. –4 B. –15 C. –36 D. 6
    8·1 answer
  • The temperatures at several times of the day are shown in the coordinate plane below. The xxx-axis represents the number of hour
    6·1 answer
  • 2
    14·1 answer
  • Solve the blank: This equation for this graph is y=____x + _______​
    14·1 answer
  • Fill in each box with the correct number or variable.
    13·1 answer
  • 4. A dog shelter recorded the number of dogs, d, in their care as well as the pounds of dog food, f, the dogs consumed in a day.
    11·1 answer
  • Can someone help with this question
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!