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
Brilliant_brown [7]
3 years ago
13

How do you this. Explain if you can so I can learn thx

Mathematics
1 answer:
12345 [234]3 years ago
7 0

Answer:

2 seconds

Step-by-step explanation:

Given

h = - 32t² + 64t

When the frisbee lands the height h = 0, that is

- 32t² + 64t = 0 ( multiply through by - 1 )

32t² - 64t = 0 ← factor out 32t from each term

32t(t - 2) = 0

Equate each factor to zero and solve for t

32t = 0 ⇒ t = 0

t - 2 = 0 ⇒ t = 2

t = 0 represents when the frisbee was thrown

and t = 2 when it lands

Hence it takes 2 seconds for the frisbee to land.

You might be interested in
The mean temperature for the first 7 days in January was 6 °C.
balandron [24]

Answer:

6.875° C

the mean of a set of data is calculated using

mean =

For the first 7 days the mean is 8 and the count = 7

8 =  ( cross- multiply )

sum = 8 × 7 = 56

Add on the temperature on the 8 th day to the sum and divide by 8 for mean

sum = 56 - 1 = 55

mean =  = 6.875° C

2nd question

Height of marble from the ground

An independent variable is the variable in an experiment that you change to see if it has an effect on the dependent variable. In this case, Jack wanted to see whether the position of the marble on the ramp (which would be the height) has an effect on the kinetic and potential energy of the marble, then the height would be the independent because it is what is being changed.

The dependent would be the kinetic and potential energy and the constant would be the type of marble.

3 0
2 years ago
A fair number cube with
malfutka [58]

Answer:

b=15 percentage

a=20 percentage

6 0
2 years ago
If Pam has $40 in her account how much does her brother have on his
Crank

Answer:

brother has $100

Step-by-step explanation:

Pam and her brother both open savings accounts. each begin with a balance of $0. For every $2 is that Pam saves in her account her brother saves $5 in his account

P:brother =2:5

when P=40 what is brother?

2/5=40/b

times 5b both sides

2b=200

divide 2

b=100

brother has $100

8 0
2 years ago
globe has a diameter of 12 inches. What is the volume of the globe? Use 3.14 for pi. Round your answer to the nearest hundredth
vesna_86 [32]
113.09 because you divide the 12 by two because the rule 

4 0
3 years ago
Read 2 more answers
Can someone help with this please??
allsm [11]

Answer:

you wont

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • I need to find the equation for this.. I keep getting confused please explain
    6·1 answer
  • 11 12 13 14 15 16 17 18 19 20 Organizers of the town fair make a total of $706 from selling 164 hot dogs and 74 hamburgers at on
    11·1 answer
  • What is the pattern in the values as the exponents increase?
    7·2 answers
  • Which story problems could be solved using the given equation?
    7·2 answers
  • Please help!!
    13·1 answer
  • On a coordinate plane, a triangle has points (negative 5, 1), (2, 1), (2, negative 1).
    9·2 answers
  • 7th grade math help me pleaseeee
    8·2 answers
  • List the temperatures in order from hottest to
    8·1 answer
  • Find the area of the shape 11cm 14cm 9cm 20cm who ever answers correctly gets brainlist
    11·2 answers
  • What is 42/3 simplified?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!