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
Maurinko [17]
3 years ago
9

A model rocket is shot straight up from the ground. The height, h (in meters) after t seconds is approximated by: h(t) = 15 + 23

t – 52
What is the maximum height the rocket will reach?
A. 56.4 meters
B. 15.0 meters
C. 33.0 meters
D. 41.45 meters
Mathematics
1 answer:
Anna35 [415]3 years ago
7 0

Answer:

DUNNO

Step-by-step explanation:

You might be interested in
What is the slope of the line shown below? (3,6) (1,-2)
mrs_skeptik [129]

Points (3,6)  and (1,-2)

Slope (m) = \frac{Change in y}{Change in x}

Change in y = -2 - 6 = -8

Change in x = 1 - 3 = -2

Slope (m) = -8 ÷ -2 = 4


7 0
3 years ago
Read 2 more answers
A rock outcrop was found to have 78.88% of its parent u-238 isotope remaining. approximate the age of the outcrop. the half-life
Alla [95]

Answer:

Answer:1.5*10^9 years

Step-by-step explanation:

The half life of the substance is given i.e 4.5B years. You can change it into seconds by multiplying it with 365 and 86400.

The current no of particles is given 78.88% which will be equal to 78.88 if you assume the substance had 100 no of particle initially.

Determine the decay constant by dividing 0.69 by half life

use these values in the equation for the answer.

[ln and e are inverse functions to eachother]

6 0
2 years ago
The salary of teachers in a particular school district is normally distributed with a mean of $50,000 and a standard deviation o
andrey2020 [161]

Answer:

D. 54,900

Step-by-step explanation:

We have been given that the salary of teachers in a particular school district is normally distributed with a mean of $50,000 and a standard deviation of $2,500.

To solve our given problem, we need to find the sample score using z-score formula and normal distribution table.

First of all, we will find z-score corresponding to probability 0.975(1-0.025) using normal distribution table.  

From normal distribution table, we get z-score corresponding is 1.96.

Now, we will use z-score formula to find sample score as:

z=\frac{x-\mu}{\sigma}, where,

z = Z-score,

z = Sample score,

\mu = Mean,

\sigma = Standard deviation

1.96=\frac{x-50,000}{2,500}

1.96*2,500=\frac{x-50,000}{2,500}*2,500

4900=x-50,000

4900+50,000=x-50,000+50,000

54900=x

Therefore, the salary of $54900 divides the teachers into one group that gets a raise and one that doesn't.

4 0
3 years ago
Find the GCF of the polynomial 3a3b3 + 9a2b + a2
jasenka [17]

Answer:

a^2.

Step-by-step explanation:

The greatest common factor  is a^2.  It cannot be 3ab or 3a^2b because b is not present in the last term (a^2). Similarly there is no 3 or multiple of 3 in a^2.

5 0
3 years ago
Which representation of a transformation on a coordinate grid does not preserve congruence? A (x,y) → (x,-Y) B (x, y) + (x + 7,
tigry1 [53]

Answer:

(x,y) --> (1/7x, 1/7y)

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • A community hall is in the shape of a cuboid the hall is 40m long 15m high and 3m wide. 10 litre paint covers 25m squared costs
    10·1 answer
  • Which of the following expressions is equal to the expression 4x-2(3x-9)? 18-2x,-10x-18,-2x-18,10x-18
    6·1 answer
  • James sold 450 tickets for the community play. Tickets for children cost $2, and tickets for adults cost $5. James sold $1,800 w
    8·1 answer
  • If people have 6 apples and 46 lemons each, how much would 423 people get?<br><br> [URGENT]
    10·1 answer
  • What is the start time 30 minutes before 10:08am
    7·2 answers
  • Tina has 10 times as many stamps as oliva. Altogether, they have 198 stamps. How many stamps does each girl have?
    11·1 answer
  • Is 1+4(3x-10) -12x equivalent to -9
    5·1 answer
  • ASAP! GIVING BRAINLIEST! Please read the question THEN answer CORRECTLY! NO guessing. I say no guessing because people usually g
    6·2 answers
  • A sales agent makes 40 calls a day. About 15% of the call result in a sale. How many days will it take for the sales agent to me
    5·1 answer
  • Is (3,4) a solution to the equation y=4x-9
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!