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
lesantik [10]
3 years ago
5

A ball is launched into the sky at 48 feet per second from a building 48 feet tall. The equation for the ball’s height h at time

t seconds is h = -16t2 + 48t + 48. When will the ball strike the ground?
Mathematics
1 answer:
kkurt [141]3 years ago
3 0

Answer:

4 seconds I believe

Step-by-step explanation:

You might be interested in
Solve the system of equations <br> y=-2/3x+1 and x+y=4
LUCKY_DIMON [66]

Answer:

Point form: (9,-5)

Step-by-step explanation:

y=-2/3x+1 and x+y=4

Point form: (9,-5)

Equation form: x = 9, y = -5

3 0
3 years ago
What is the answer. Please dont send me ‘links’. I seriously need help.
Agata [3.3K]

<u>Answer:</u>

Total Volume of composite figure = 635.2 cm³

<u>Steps:</u>

  • 1.

CV = h×3.14×(d/2)²

CV = 5×3.14(8/2)²

CV = 5×3.14(4)²

CV = 5×3.14×16

CV = 5×50.24

CV = 251.2 cm³

  • 2.

RV = h×w×l

RV = 4×8×12

RV = 4×96

RV = 384 cm³

  • 3.

TV = CV + RV

TV = 251.2 + 384

TV = 635.2 cm³

3 0
2 years ago
Car leases generally allow only a certain number of miles to be driven. Myung’s lease included a charge of 25 cents per mile for
faust18 [17]

Answer:

36,000

Step-by-step explanation:

if you multiply 12,000 and 3 you get 36,000.

4 0
2 years ago
A researcher surveyed 150 high school students and found that 68% played a musical insturment. What would be a reasonable range
maria [59]

Answer:

The reasonable range for the population mean is (61%, 75%).

Step-by-step explanation:

The interval estimate of a population parameter is an interval of values that consist of the values within which the true value of the parameter lies with a certain probability.

The mean of the sampling distribution of sample proportion is, \hat p.

One of the best interval estimate of population proportion is the 95% confidence interval for proportion,

CI=\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

Given:

n = 150

\hat p = 0.68

The critical value of <em>z</em> for 95% confidence level is:

z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96

Compute the 95% confidence interval for proportion as follows:

CI=\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

     =0.68\pm1.96\sqrt{\frac{0.68(1-0.68)}{150}}\\\\=0.68\pm 0.0747\\\\=(0.6053, 0.7547)\\\\\approx (0.61, 0.75)

Thus, the reasonable range for the population mean is (61%, 75%).

5 0
3 years ago
Helpp (please tell me if you can’t see the numbers so I can tell you them)
Ugo [173]

Answer:

-6 is the y coordinate

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • In order to save money for prom this weekend, tom is going to walk his neighbor's dog for $6 per hour and was cars for $8 per ho
    14·2 answers
  • Where do -5.5 go on a number line
    10·1 answer
  • There are 15 research doctors participating in the study and the research board needs to be established with the offices of dire
    12·2 answers
  • Write the polynomial in factored form.<br> y= 3x– 12x² – 36x
    10·1 answer
  • These are solving proportions btw! 20/8 = 4k/32
    14·1 answer
  • What is the slope (2,-9) (-2,9)
    13·1 answer
  • Slope from two points
    11·1 answer
  • What is the measure of the missing angle in the triangle below?
    8·2 answers
  • Find the domain and range of the function y = √x-3 + 6
    5·1 answer
  • The perimeter of the triangle is 42. Find the length of all the sides.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!