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
kykrilka [37]
3 years ago
10

A toy rocket was launched from the ground. The function f(x) = -16x2 + 128x shows the height of the rocket f(x), in feet, from t

he ground at time x seconds. What is the axis of symmetry of the graph of f(x) and what does it represent? (3 points)
x = 8; it takes 8 seconds to reach the maximum height and 8 seconds to fall back to the ground

x = 4; it takes 4 seconds to reach the maximum height and 4 seconds to fall back to the ground

x = 8; it takes 8 seconds to reach the maximum height and 16 seconds to fall back to the ground

x = 4, it takes 4 seconds to reach the maximum height and 8 seconds to fall back to the ground
Mathematics
2 answers:
Serjik [45]3 years ago
7 0
Axis of symmetry shows the min/max. its a max in this case and its at x=4

so the ans is <span>x = 4, it takes 4 seconds to reach the maximum height and 4 seconds to fall back to the ground

</span>
Tcecarenko [31]3 years ago
3 0
The answer to this question is:

<span>x = 4; it takes 4 seconds to reach the maximum height and 4 seconds to fall back to the ground </span>
You might be interested in
Hmmmm can y’all give me this answer for this please
uranmaximum [27]

Answer:

M is the slope of the equation

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The variable z is inversely proportional to x. When x is 19, z has the value 0.10526315789474. What is the value of z when x= 28
telo118 [61]

When two variables are inversely proportional the relation between them can be written as:

z=\frac{k}{x}

Here, k is the constant of proportionality and is always equal to the product of the two variables. So using the given values of z and x, we can find k first.

k=zx\\ \\  k=0.10526315789474(19)\\ \\  k=2

The constant of proportionality for the given inverse proportion comes out to be 2. Using the value of k in the equation, we get:

z=\frac{2}{x}

We have to find the value of z when x=28. So replacing x by 28, we get:

z=\frac{2}{28}\\  \\  z=0.07142857143

Thus, rounding of to nearest thousand the value of z comes out to be 0.071 if x is equal to 28.

6 0
3 years ago
Help pls! will give brainliest!<br> what is a 11 percent markup of $18
Inessa05 [86]

Answer:

$16.02

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please answer this multiple choice question correctly for 30 points and brainliest!!
marishachu [46]

Step-by-step answer:

Given:

Initial monthly salary = $5000

New salary = 10% less

Salary a year after = 15% more

Solution:

New salary

= 5000 * (100-10)%

= 5000 * 90%

= 5000 * 90/100

= 4500

Salary a year after

= 4500 * (100+15%)

= 4500 * 115%

= 4500 * 115/100

= 45*115

= 5175

6 0
3 years ago
The water in a reservoir decreased by 47% during a drought. Before the drought, the reservoir held 44,580 acre ft (AF) of water.
yawa3891 [41]
Multiply 44580 by .47
that gives you 20952.6 which equals 47% of the water
take the 44580, and subtract the 20952.6
giving you the remainder as your answer
23627.4
6 0
3 years ago
Other questions:
  • What is the formula for volume?
    11·2 answers
  • Which of the following are solutions to the equation below?
    5·1 answer
  • Two of the most expensive cars in the world are car A and car B. The prices of these two cars differ by more than $15,000. The p
    8·1 answer
  • How will you know if angles are congruent or supplementary?
    10·1 answer
  • Which is the better buy? Show your work and explain your reasoning.
    11·1 answer
  • Use the following coordinate plane to write the ordered pair for each point.
    8·1 answer
  • Please help ASAP!!!!!!!
    10·1 answer
  • Responda a expressão 5x+6y+x+2:​
    11·1 answer
  • A tunnel is constructed with a semielliptical arch. The width of the tunnel is 80 feet, and the maximum height at the center of
    5·2 answers
  • Is not a polygon because ???
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!