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
sertanlavr [38]
3 years ago
6

A projectile with an initial velocity of 48 feet per second is launched from a building 190 feet tall. The path of the projectil

e is modeled using the equation h(t) = –16t2 + 48t + 190.
What is the maximum height of the projectile?
A. 82 feet
B. 190 feet
C. 226 feet
D. 250 feet
Mathematics
2 answers:
IceJOKER [234]3 years ago
7 0

The answer is C on edge

Nostrana [21]3 years ago
6 0

Answer:

Option c is correct

226 feet  is the maximum height of the projectile.

Step-by-step explanation:

A quadratic equation y=ax^2+bx+c,   ....[1]

then the axis of symmetry is given by:

x = -\frac{b}{2a}

As per the statement:

The path of the projectile is modeled using the equation :

h(t) = -16t^2+48t+190            ....[2]

where, h(t) is the height after t time.

On comparing with [1] we have;

a = -16 and b = 48

then;

t = -\frac{48}{2(-16)} = \frac{48}{32} = 1.5 sec

Substitute this in [2]  we have;

h(1.5) = -16(1.5)^2+48(1.5)+190  

⇒h(1.5) = -36+72+190  

Simplify:

h(1.5) = 226 ft

Therefore, the maximum height of the projectile at 1.5 sec is, 226 feet.

You might be interested in
4. Consider line A which is defined by the equation:
sergiy2304 [10]

Answer:

c. Put them alined straight and centered X to B to W and now you get the answer so it's C.

4 0
2 years ago
Please Help!!!
myrzilka [38]

Answer:

A. principal interviewed the 25 students who scored highest on a reading test.

D. For a report on the exercise habits of adults, Sergio talked to 30 adults at a local fitness center.

E. Josh asked the first 25 people he met at the dog park if they preferred dogs or cats.

Step-by-step explanation:

Biased means if the selection of every unit does not have an equal chance of being selected in a sample.

The sample is said to be good if choosing the unit is unbiased. The sample is said to be unbiased if the selection of each unit is independent.

Option A is an example of data selected in a biased way because principal chose only those student who scored the highest marks on reading test.

Options B and C are unbiased as here a selection of each number and name of the student has an equal chance of being selected.

Option D is biased because Sergio talked adults at a local fitness center where people go for maintaining their health. So, there is a chance of the selection of fitted adults more than unfitted adults.

Option E is biased because Josh met people at the dog park where dog lovers are more than a cat lover.

7 0
3 years ago
Read 2 more answers
Please help i need it
Volgvan

Answer: question 1: 20 question 2: 21 question 3: 17, 19, 23

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Are the graphs of the lines in the pair parallel? Explain. y = 6x + 9 27x – 3y = –81
olga nikolaevna [1]
For the 2nd equation, you need solve for y to get it by itself so once thats done you get y=9x+27 but since the x values (also the slope) aren't equal, they can't be parallel
7 0
3 years ago
Read 2 more answers
Identify the reason that justifies the statement.
Amiraneli [1.4K]

Answer:

C; Substitution property

Step-by-step explanation:

Here, we want to find the justification that justifies the written equation;

If PQ + RS = PS

and RS = XY

then PQ + XY = PS

What we simply did is to substitute RS for XY in the second equation;

The correct answer is Substitution property

It can be fully referred to as the substitution property of equality.

What it simply means in a nut shell is that since XY and RS are equal, then in any addition or arithmetic equation, we can make a substitution of XY for RS since they are equal to each other

5 0
3 years ago
Other questions:
  • What is 4 to the 7th power ?
    7·1 answer
  • A grocer stacks oranges in a four-sided pyramid that is 8 layers high. How many oranges are in the pile?
    8·2 answers
  • Justin is training for a hamburger eating competition. He is eventually able to eat 15 hamburgers in 10 minutes. What is justin’
    11·1 answer
  • The ratio of books are 9:11 what percent of the reading materials are books plzzz help
    8·1 answer
  • At Katya's fruit stand, a basket of strawberries costs $4 and a basket of raspberries costs $9. In one morning, Katya sells 96 b
    11·1 answer
  • If (6 to the second power )x = 1 what is the value of x? Explain your answer.
    13·1 answer
  • 2. I need help with question in the attached picture!
    12·1 answer
  • Rewrite in standard form, then factor completely. <br> 294-6x^2
    8·1 answer
  • Part A: What do the x-intercepts and maximum value of the graph represent in context of the described situation?
    7·1 answer
  • The question is below
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!