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
zaharov [31]
3 years ago
14

What is the answer to the problem i am very confused...

Mathematics
1 answer:
musickatia [10]3 years ago
7 0
The time of takeoff of this hovercraft would be 0 seconds, as if you were starting a timer. So, if you plug in 0 for x (unit for seconds) in your equation, it will look like this:

h(0) = -3(0 - 3)² + 108
Parenthesis first
h(0) = -3(-3)² + 108
Exponents next
h(0) = -3(9) + 108
Multiplication
h(0) = -27 + 108
Combine like terms

h(0) = 81: The height of the hovercraft at the time of takeoff is 81 meters!
Hope this helps :)

You might be interested in
Eleven less than three times a number
Ber [7]
The answer to this question could be 44
8 0
3 years ago
Read 2 more answers
1) The number √ , where n is a prime number is
Firlakuza [10]
It is an irrational number
3 0
3 years ago
Read 2 more answers
Solve the right triangle. 34.5 Find the length of the side opposite to the given angle. (Round your answer to two decimal places
lapo4ka [179]

Answer:

a) 388.03

b) 148.49

c) π/8

Step-by-step explanation:

Find the diagram attached

Let the opposite side be y

Given

a) Hypotenuse = 420

theta = 3π/8 rad

theta = 3(180)/8

theta = 67.5degrees

Using the SOH CAH TOA identity

sin theta = opposite/hypotenuse

sin 67.5 = y/420

x = 420sin67.5

x = 420(0.9238)

x = 388.03

Hence the length of the side opposite to the given angle is 388.03

b) Hypotenuse = 420

theta = 3π/8 rad

theta = 3(180)/8

theta = 67.5degrees

Using the SOH CAH TOA identity

cos theta = adjacent/hypotenuse

cos 67.5 = x/420

x = 420cos67.5

x = 420(0.3827)

x = 148.49

Hence the length of the side adjacent to the given angle is 148.49

c) The sum of angle in the triangle is π

Let the measure of the unknown angle be z

z + 3π/8 + π/2 = π

z + 3π+4π/8 = π

z + 7π/8 = π

z = π - 7π/8

z = (8π-7π)/8

z = π/8

Hence the measure of the other acute angle is π/8

5 0
2 years ago
If 75% of a number is 285 and 10% of the same number is 38, find 85% of that number.
NemiM [27]

Answer:

323

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Help me. Please ;-;<br><br> i need 20 characters ;-;
Afina-wow [57]

Answer:

I need more context

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Find the additive inverse of -7+5i.
    15·1 answer
  • What is the value of x which proves that the runways are parallel? What is the measure of the larger angle?
    12·2 answers
  • Describe the number of solutions for the equation 3(x - 3) = 3x
    9·2 answers
  • InMrs. Little’s first period classroom, there are 15boysand 8girls on the roster.However, she would like the ratio of girls to b
    10·1 answer
  • What is the chance that a person randomly selected off the street was born in May
    15·1 answer
  • HELP ASAP ! WORK A LOT POINTS!
    15·1 answer
  • True or face dilations preserve angle measure
    7·1 answer
  • Help please, I'll give brainliest :&lt; to whoever can answer and give the solutions​
    10·1 answer
  • Hi please help ! this is rlly confusing! 15 points .
    9·1 answer
  • johnny is making 30 sundaes with mint, chocolate, and vanilla ice cream. 3 5 of the sundaes are mint ice cream and 1 2 of the re
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!