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
Kazeer [188]
3 years ago
6

The blades of a windmill turn on an axis that is 35 feet above the ground. The blades are 10 feet long and complete two rotation

s every minute. Which of the following equations can be used to model h, the height in feet of the end of one blade, as a function of time, t, in seconds? Assume that the blade is pointing to the right, parallel to the ground at t = 0 seconds, and that the windmill turns counterclockwise at a constant rate.
Mathematics
2 answers:
7nadin3 [17]3 years ago
6 0
<span>It could be C. If the blade spends twice in a minute, it would be 30 seconds. 30=2pi/B=pi/15. </span>
Komok [63]3 years ago
3 0

No equation on your list can be used to model 'h', because
you didn't provide a list.  That leaves me wondering just what
"the following" means, and it leaves me to create an equation
out of thin air.

So there's no way I can help you pick the right choice from
the list of choices.  But if you see anything there that looks
like this:

                             h = 35 + 10 cos( π t / 30 )

then go ahead and pick that one.

You might be interested in
g Suppose a factory production line uses 3 machines, A, B, and C for making bolts. The total output from the line is distributed
Vladimir [108]

Answer:

The probability that it came from A, given that is defective is 0.362.

Step-by-step explanation:

Define the events:

A: The element comes from A.

B: The element comes from B.

C: The element comes from C.

D: The elemens is defective.

We are given that P(A) = 0.25, P(B) = 0.35, P(C) = 0.4. Recall that since the element comes from only one of the machines, if an element is defective, it comes either from A, B or C. Using the probability axioms, we can calculate that

P(D) = P(A\cap D) + P(B\cap D) + P(C\cap D)

Recall that given events E,F the conditional probability of E given F is defined as

P(E|F) = \frac{P(E\cap F)}{P(F)}, from where we deduce that

P(E\cap F) = P(E|F)P(F).

We are given that given that the element is from A, the probability of being defective is 5%. That is P(D|A) =0.05. Using the previous analysis we get that

P(D) = P(A)P(D|A)+P(B) P(D|B) + P(C)P(D|C) = 0.05\cdot 0.25+0.04\cdot 0.35+0.02\cdot 0.4 = 0.0345

We are told to calculate P(A|D), then using the formulas we have

P(A|D) = \frac{P(A\cap D)}{P(D)}= \frac{P(D|A)P(A)}{P(D)}= \frac{0.05\cdot 0.25}{0.0345}= 0.36231884

3 0
3 years ago
Travis has the following problem for homework:
Elina [12.6K]

Answer:

The correct answer is -4

Step-by-step explanation:

First you have to solve what is in the parenthesis. So do 36/6 which is 6 and then subtract 2 to get 4. Then you have to do the multiplication so 16 x 4 and you get 64. then you can go left to right. 82-64+18+4 and when you do that you get -4

5 0
3 years ago
The quotient of four times a number and six is eight.
Anna35 [415]

Answer:

Quotient = Divide

8 = 4x * 6


6 0
3 years ago
Read 2 more answers
Please help! Will mark BRAINLIEST!
Softa [21]

your awnser was hard and complicated but i think i got it 7214.485x^10y^10

7 0
3 years ago
What is the answer to (-3x) + x
Dafna11 [192]
I'm pretty sure it's -4x. 
5 0
3 years ago
Other questions:
  • Help please! Giving away brainliest.
    7·1 answer
  • 1. The prism-shaped roof has equilateral triangular bases. Create an equation that models the height of one of the roof's triang
    6·2 answers
  • jose reads 39 books in 1994, 27 books in 1995, and 35 books in 1996. how many books did he read over 3 years
    11·1 answer
  • Solve for b in the literal equation y = 2x + 2b.<br> b =
    12·1 answer
  • Bring the fraction 12/y−x to a denominator of x−y<br><br> i would really appreciate it thx
    9·1 answer
  • Help Please!!
    10·1 answer
  • The sum of 4 thirteens and 16 thirteens, need answer ASAP :(
    9·1 answer
  • HEllpplppll I’ll give u a star
    14·2 answers
  • What is the product of 8.2 x 10^2 and 3.4 x 10^5
    6·1 answer
  • a student borrows $3000 at 15% for 6 months to pay tuition. find the total amount due using simple interest. total amount due af
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!