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
BigorU [14]
3 years ago
12

The blades of a windmill turn on an axis that is 30 feet from the ground. The blades are 10 feet long and complete 2 rotations e

very minute.
Write a sine model, y = asin(bt) + k, for the height (in feet) of the end of one blade as a function of time t (in seconds). Assume the blade is pointing to the right when t=0 and that the windmill turns counterclockwise at a constant rate.
Mathematics
2 answers:
Tasya [4]3 years ago
5 0
The sine model is y=10 sin(1/30 t) + 30.  The 30 represents default distance from the ground, and the ten is required to represent the length of the blades.  Every 30 seconds, one rotation completes, so t must be multiplied by 1/30.
Darya [45]3 years ago
5 0

Answer is D on edg

Y=10sin(pi/15t)+30

You might be interested in
Which is equivalent to b6/b2
lakkis [162]

Answer:

yuojsjsjskakavbhjsmsnnxjxj

6 0
3 years ago
HELP! solve for p p+10/p-7=8/9
Nastasia [14]
\frac{P+10}{P-7} =  \frac{8}{9} 

use the cross method solve the equation.

9P+90=8P-56
9P-8P=-56-90
P=-146

Hope this helps.
8 0
3 years ago
What’s the correct answer for this?
Dvinal [7]

answer

euros/liters-----dollar/gallon

0,876/3,785=0,231

0,231×1,29=0,297

7 0
3 years ago
5. When I sine an angle like 60°, it gives me a value like 0.866025403. What does this number represent?
PolarNik [594]

Answer:

See below

Step-by-step explanation:

The number you described is the same as sin(60^{\circ})=\frac{\sqrt{3}}{2} where the sine of an angle is the ratio between a right triangle's opposite side to the angle and the hypotenuse. So, in this case, if we had a right triangle with a height of \sqrt{3} units and a hypotenuse of 2 units, the ratio between the two sides will result in the value you provided. This right triangle in particular would be a 30-60-90 triangle.

In the case of a unit circle, it’s the y-coordinate of the point where a 60° angle in the standard position intersects a unit circle and a right triangle is created from that.

5 0
3 years ago
six friends went to a basketball game. The price of admission per person was $x. four of the friends paid an extra $5 each for a
lesya692 [45]

Answer:

6x+20 or 2(3x+10)

Step-by-step explanation:

Six friends went to a basketball game and four people paid $5 extra for a t-shirt.  To find the total cost, multiply 6 by x and 4 by 5 this add them together:

6*x+4*5

6x+20, If needed you can factor this expression to:

2(3x+10)

7 0
3 years ago
Read 2 more answers
Other questions:
  • Please help need answer please
    10·1 answer
  • The Atlantic bluefin tuna is the largest and most endangered of the tuna species. They are found throughout the North Atlantic O
    8·1 answer
  • !NEED HELP!<br><br>SOLVING WITH SUBSTITUTION METHOD<br><br>6x-2y=5<br>y=3x+7​
    5·1 answer
  • What is Julen 3/4÷1 and 1/8 in simplest form
    12·1 answer
  • (4y - 3) + (9y - 2) = what
    12·1 answer
  • Pls answer quick
    12·2 answers
  • Expand and simplify 4(2x+3)-(5x-1)
    8·1 answer
  • WILL GIVE BRANLIEST <br> Which number line shows the solution to11x + 14 &lt; –8?
    5·1 answer
  • What is the m angle 2?NO SPAMS OR LINKS! THANKS ​
    13·1 answer
  • A middle school has the fifth and sixth grades. There are 100 fifth-grade boys and 110 fifth-grade girls. There are 7 fewer sixt
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!