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
lord [1]
2 years ago
9

a diver dives from a 10m springboard. the equation f(t)=-4.9t^(2)+4t+10 models her height above the pool in seconds. what is her

height at 1.5 second after diving off the springboard
Mathematics
1 answer:
Juliette [100K]2 years ago
8 0

Answer:

4.975 meters

Step-by-step explanation:

f(1.5)= -4.9(1.5)^2+4(1.5) + 10\\\\f(1.5) = -4.9(2.25) + 6 + 10\\\\f(1.5) = -11.025 + 6 + 10\\\\f(1.5) = -11.025 + 16 \\\\f(1.5) = 4.975

4.975 meters

-Chetan K

You might be interested in
Ali will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of 70 and costs an additi
Aleksandr-060686 [28]

Answer: Ali would need to drive 350 miles for the two plans to cost the same.

Step-by-step explanation:

This question can be solved by creating two equations using the information supplied in the question and then solving these simultaneously.

Let the cost be C.

Let the number of miles be M.

Let the initial payment be i.

Let the rate per mile driven be R.

Plan 1:

C = i+R×M

C = 70+0.60M ... equation 1

Plan 2:

C = i+R×M

C = 0+0.80M

C = 0.80M ...equation 2

Substituting equation 2 into equation 1:

0.80M = 70+0.60M

0.80-0.60M = 70

0.20M = 70

M = 70/0.20

M = 350 miles

5 0
3 years ago
Evaluate a + b for a = 2 and b = 3
Vikki [24]

Answer:

5

Step-by-step explanation:

2+3+5

5 0
3 years ago
(MUST SHOW WORKING)
myrzilka [38]
First of all, keep in mind :
m --> cm = times by 100
cm --> mm = times by 10
mm --> cm = divide by 10
cm --> m = divide by 100

so we know that a square has 4 equal sides and to find the area of a square we do base*height. now these two numbers on the base and height are the same so we're basically squaring them to get the area of 81. therefore, we do the reverse so square root 81 and we get the answer 9cm

now let's convert 9cm to mm
= 9*10 = 90
area in mm = 90mm

now let's convert 9cm to meters
= 9/100=0.09
area in m = 0.09m

and finally, we already worked out the area in cm
= 9cm

hope this helped :)


3 0
3 years ago
Craig went out to a restaurant for dinner. He tipped 16% of his bill, which brought the sum of the dinner bill plus the tip to $
alexira [117]
$22.50

You can get this by dividing the new total by 116%, which is how much of the bill was paid. 
4 0
3 years ago
Choose the letter for the best answer.
arlik [135]

Answer:C

Step-by-step explanation:

78-17.5*2 = 43 so C

8 0
2 years ago
Read 2 more answers
Other questions:
  • Find the quotient. <br> A1,528<br> B1,524R<br> C1,524<br> D1,525R
    9·2 answers
  • Express answer in exact form. Show all work for full credit.
    9·1 answer
  • Which combination of transformations can you use to show that one shape is congruent to another? dilations and reflections/ refl
    5·1 answer
  • Write the first six nonzero multiples 3
    5·1 answer
  • In the circle m∠ACD=2x+14 and m∠ABD=3x+8<br> what is the value of x
    5·1 answer
  • There are 8 sophomores on the academic team. At the last competition, they each took the math test. Their scores were 82%, 92%,
    6·2 answers
  • Help please! I need help with question 3. I don’t know how to start it. I’ll give brainly☺️
    11·2 answers
  • Find the value(s) of the variable(s). Write your answer(s) in simplest radical form.
    5·1 answer
  • I need someone to Evaluate 271,000√3.
    11·1 answer
  • Find the distance from the point (1, 0, -2) to the origin.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!