Kahleela starts the engine on her small private airplane. The engine drives a propeller with a radius of 8.5 feet and its centerline 11.5 feet above the ground. At idle, the propeller rotates at a constant speed of approximately 800 revolutions per minute. The height of one propeller tip as a function of time is given by h = 11.5 + 8.5 sin(800t), where h is the height in feet and t is the time in minutes. Find h when t = 5.5 minutes.
Answer:
a=21.1
Step-by-step explanation:
You can use the given (incorrect) equation and fill in the value of t to find h:
h = 12.5 +9sin(750(3.5)) = 3.68 . . . . feet
__
Or, you can use the correct equation, or just your knowledge of revolutions:
h = 12.5 +9sin(750(2π·3.5)) = 12.5 . . . . feet
in 3.5 minutes at 750 revolutions per minute, the propeller makes 2625 full revolutions, so is back where it started — at 12.5 feet above the ground.
Answer:
A. 3.1 feet is the answer i believe.........
Step-by-step explanation:
Juanita has saved 20% of the money that she needs to buy a new bicycle if she has saved $52 how much money does the bicycle cost?
Type your response in the box.
Solve the equation x^2 – 5 = √ x – 2 by using successive approximation-
9514 1404 393
Answer:
x ≈ 2.367796
Step-by-step explanation:
There are a number of ways to use "successive approximation" to find a solution to an equation. You have not specified the method or the required accuracy.
__
One of the more tedious is the bisection method, which computes the value of the function at the midpoint of an interval, to see if that midpoint should be a new interval bound. This method requires about 3 iterations per decimal place of the answer.
Another method is the secant method. It computes the x-intercept of the secant line joining the points at the ends of the interval containing the solution. The function value at this x-intercept is used to see if that point should be a new interval bound. This method converges slightly faster than the bisection method. It is speeded by adjusting both ends of the interval.
Newton's method iteration converges at a quadratic rate, nearly doubling the number of correct decimal digits at each iteration. This works in a fashion similar to the secant method, except the x-intercept is computed from the function value and its derivative, not from points at the ends of an interval.
__
We assume you want the solution to ...
x^2 -5 = √(x -2)
This is conveniently reformulated to ...
x^2 -5 -√(x -2) = 0
so that we're seeking a zero of the function on the left.
The attached shows several iterations of the secant method. The function g is used to compute the x-intercept point on the line between (x1, f(x1)) and (x2, f(x2)). Then f(g( )) computes the function value at that x-intercept. We have used that to decide what the next interval limits (x1, x2) could be.
Our final guess at x is ...
x ≈ 2.367796 . . . . secant method
which gives an error less than 10^-5 between the left- and right-sides of the equation.
_____
Additional comments
At the bottom of the attachment is the Newton's Method iterator. The nice thing about this graphing calculator is that it displays the result of computing h(x) even as the value of x is being typed. This means you can type what you see and achieve full calculator precision for the solution in basically one pass. This method gives x = 2.36779701571.
Some hand-held graphing calculators have a derivative function built-in, so it is practical to use them to perform Newton's method iteration in substantially the same way.
Which two whole numbers does 27/4 lie between?
Answer:
6 and 7
Step-by-step explanation:
27 divided by 4 equals 6.75 and that number is in between 6 and 7
please help 25 points !!!!!!!!!!!!!!!!!!!
look at the picture below . write a word problem for that equation.
Now we have to,
Write a word problem for the equation,
→ 2/6 × 3/4
Let's write a word problem,
Nobita had got salary, then he spent his 2/6 of his salary for every 3/4 times. How much he had spent totally (in fraction), give the required expression?
Pl help its for a grade
Answer:
85
Step-by-step explanation:
solve for X
Please help
Answer:
x = 5
Step-by-step explanation:
set JN and NL equal to each other...
14x – 17 = 3x + 38
11x = 55
x = 5
Please help me my moms gonna kill me if I don’t get this done(20 points)
The polygons are similar. Find the values of
the variables. Write an equation and solve,
showing ALL the work.
Answer:
x=30° y=4
Step-by-step explanation:
[tex] \frac{y}{8} = \frac{2.5}{5} [/tex]
cross multiple
5y=8(2.5)
5y=20
divide 5 by 20
and you should y=4
since the polygons are similar x should have the same degrees as the bigger polygon
Answer: Y=4
Step-by-step explanation
Since the inside of a triangle is 180 degrees the 30 degrees plus the 90 degree corner minus the total inside degree so the other corner is 60 degrees. the dialation is 62.50 percent or .625 in decimal form which makes the vareable y equals 4 once you divide 2.5 by .625
Your welcome for the help :)
Solve for θ or x, round to the nearest tenth. I will mark brainliest if its correct!
Find the perimeter of the following figure:
a. 3a2+ 22a + 35
b. 8a + 24
c. 4a + 12
d. 3a2 +22a + 12
Answer:
B
Step-by-step explanation:
8a+24
Find the x- and y-intercepts of the graph of the linear equation −x+8y=4.
In a soup kitchen, 22 pounds of rice was used during the lunch. If 110 people came to have lunch, about how many pounds of rice was used by each person?
Answer:
0.2 pounds of rice
Step-by-step explanation:
To find how much rice was used by each person, divide 22 by 110
22/110
= 0.2
So, each person used 0.2 pounds of rice
Select the situation that describes the expression given below.
A.
Janey is given cups of flour for making cookies. She only uses of a cup of the flour.
B.
Jean has pounds of grapes. He gives of a pound of grapes to Roy.
C.
Elroy cuts meters of rope into pieces that are each of a meter long.
D.
Von runs around a jogging track times. The jogging track is of a kilometer long.
Answer:
the awnser should be. c
Step-by-step explanation:
because shes cutting them which divides them
Briley has 347 marbles. Joey has 4 times as many as Briley. Carson has 799 fewer than Joey. How many marbles does Carson have?
Can somebody help me thank you? Show work please
Answer:
697 marbles
Step-by-step explanation:
We know:
Briley- 374 marbles
Joey- 374*4
Carson- (374*4)-799
Solve:
374*4= 1496 (This is how many Joey has)
1496-799= 697 (This is how many Carson has)
Hope this helps!
I will give brailiest
Estimate the sale price of the item.
30% off a bike for $432.43
Answer:
Purchase Price:
$432
Discount:
(432 x 30)/100 = $129.60
Final Price:
432 - 129.60 = $302.40
Step-by-step explanation:
Answer:
About $129
Step-by-step explanation:
30% of $432.43 rounds to 30% of $430 = .3 x 430 = About $129 dollars
Hope that helps!
What is the simplest form of 15/60
Answer:
1/4
Step-by-step explanation:
Answer:
15/60 simplified equals:
1/4
Step-by-step explanation:
In the fraction 15/60, 15 is the numerator and 60 is the denominator.
When you ask "What is 15/60 simplified?", we assume you want to know how to simplify the numerator and denominator to their smallest values, while still keeping the same value of the fraction.
We do this by first finding the greatest common factor of 15 and 60, which is 15.
Then, we divide both 15 and 60 by the greatest common factor to get the following simplified fraction:
1/4
HELP I NEED HELP ASAP
PLEASE HELP ITS TIMED!!!
Which is greater -1.9 or -2 1/9
Answer:
-1.9
Step-by-step explanation:
Please help. I attached the file below
Answer:
33.2
Step-by-step explanation:
41.5÷1.25=
33.2
Answer:
31.6 or 31 6/10 or 31 3/5
Step-by-step explanation:
39.5/1.25 = 31.6
Jack gets 31.6 miles per gallon.
.25 = 1/4
.5 = 1/2
What is the distance between the points (7, 8) and (-8, 0) on a coordinate grid?
Answer:
17
Step-by-step explanation:
A cookie recipe has 3 eggs for
every 1 dozen cookies.
How many eggs are in 3 dozen cookies?
Answer:
9 eggs
Step-by-step explanation:
1 dozen = 3 eggs
2 dozens = 6 eggs
3 dozens = 9 eggs
Elizabeth earns $8 per hour. She works 40 hours each week. How much money does she earn in 6 weeks?
Answer:
40x8 is 320. 320x6 is 1,920 that's your answer
plssss help giving brainly
Answer:
-2 and 4
Step-by-step explanation:
not 100% sure but i think so
Answer: 4 + -6 = -2
Explanation: it’s technically 4-6 which also equals -2
Answer this problem
Answer:
(3,-7)
(-8,48)
(-4,28)
(8,-32)
(-3,23)
Step-by-step explanation:
To solve, just put in the x value from the table as the x value in the equation. Then solve to get y.
Hope it helps!
suppose potatoes cost $0.99 per pound. complete the function rule c=? to describe the relationships between the total cost c and the number of pounds of potatoes p you buy.
Answer:
c=p*0.99
you gonna multiply the amt of patatoes by the cost of one to get the total like if you were buying 5 you would multiply 5 by 99 to get the total
P = $0.99
C = [tex]P * x[/tex]
[Note: x is how many pounds of potatoes you buy.]
Hope this helped, I'm not too good with relations.
find an equation for the line below
factor each expression
24x +8y
HELP ASAP
WRONG ANSWERS REPORTED
The average depth of five lakes is 229m. If none of the lakes is less than 194m deep then the greatest possible depth of one of these lakes in meters is,
Answer:
The average depth of five lakes is 229m. If none of the lakes is less than 194m deep then the greatest possible depth of one of these lakes in meters is,
Answer:
369
Step-by-step explanation:
* = Multiply
5*229=1145
Lakes * Average = Total Average Depth of Five Lakes
(1145-369)/4=194 (it worked)
4 is the other lakes, 369 would be considered the largest lake.
Answer is 369.
Cheers, iYekria
Please help due today
Answer: 80 ft²
Step-by-step explanation:
The area of a trapezoid is one half the product of the height and the sum of the lengths of the bases.
(6 + 10) * 0.5 * 10 = 80 (ft²)
2) Mackenzie just started training for a marathon. According to her plan,
she must run 19 miles the first week and 25 miles the second week. What is
the percent increase?
Answer:
32%
Step-by-step explanation:
25 - 19 = 6
6 divided by 19 = 0.315
round to the nearest percent, 32%