01/09/21

Please help me with this
(a) Find an angle θ, with 0°<θ< 360°, that has the same cosine as 54° (but is not 54°).θ=(b) Find an angle θ, with 0°<θ< 360°, that has the same sine as 54° (but is not 54°).θ=
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01/09/21

Please help me with this
Given that P = (0.777,0.629) is a point on the unit circle with angle 39°, estimate the following without a calculator. sin 141°=cos 141° (b) Given that Q = (0.326,0.946) is a point on the unit... more
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01/08/21

Find the area of a rectangle if the length is 3 less than the width

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01/08/21

A cell phone company charges $42 per month of service. The cost of a new cell phone plus 8 months of service costs $415.99.
A. Write an equation in point-slope form to find the total price y for x amount of months. B. Write the equation in slope-intercept form. C. What is the cost of a new cell phone?
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01/08/21

does a 3rd degree polynomial have three linear factors

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01/04/21

Please explain step by step, i really dont get this
What is the next fraction in this sequence? Simplify your answer.7/9, 13/18, 2/3, 11/18
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01/04/21

multiplying polynomials
The cost of a video game can be modeled by the equation C = 5x -2. The number of games sold can be modeled by the equation N = 8x + 5. Write a model for the revenue from the sale of the games.
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01/03/21

f is a continuous function whose domain is all real numbers. a,b,c,d,m, and n are constants. ∫[b a]f(x)dx=8, ∫[c b]f(x)dx=-11, ∫[d c]f(x)dx=9. Evaluate the following definite integrals.
∫[d a]f(x)dx=?3∫[b a]f(x)dx-5 ∫[c b]f(x)dx=?∫[d b]f(x)dx-∫[c d]f(x)dx=?∫[a b]f(x)dx=?∫[m b]f(x)dx+∫[n m]f(x)dx+∫[c n]f(x)dx=?∫[b a]f(x)dx+∫[b c]f(x)dx=?∫[d b]f(x)dx=?∫[b b]f(x)dx=?
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12/31/20

Step Functions Word Problem
Johnny is very confused on why you have open ended sides on the left sometimes and then sometimes on the right. Explain to him in complete sentences how this situation occurs, and how Johnny might... more
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12/02/20

precal question

Determine the common difference, the fifth term, the nth term, and the 100th term of the arithmetic sequence.14, 10, 6, 2,    d =   a5 =   an =   a100 =  
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12/02/20

Use the Midpoint Rule with n = 4 to approximate the area of the region bounded by the graph of f and the x-axis over the interval. (Round your answer to four decimal places.)
f(x) = x6 − x7 [0, 1]
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12/02/20

Calculus help please
 Determine if the Mean Value Theorem for Integrals applies to the function  on the interval [1, 5]. If so, find the x-coordinates of the point(s) guaranteed to exist by the theorem. (2... more
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11/26/20

Find the distance from the point (3, 8) to the line y=1/5x-3. Round your answer to the nearest hundredth
show work please. i need to learn how to do this for my geometry class for school before next weekend. this would mean alot to me if someone could help me
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11/26/20

Use a double angle formula to determine the exact value of sin ( −13π / 12 )
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11/25/20

A man in a rowboat is at point P, 5 miles away ... below
A man in a rowboat is at point P, 5 miles away from the nearest point A on a straight line shore. He wishes to reach a point B, six miles from A along the shore, in the shortest possible time.... more
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11/25/20

For Julia — linear equations part 2
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11/25/20

For Julia — linear equations
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11/25/20

The blades of a windmill are 20 m in length and rotate at a speed of 4 rpm on a typical day.
a) Determine the exact angular velocity of the blades in radians per second.b) What distance does the tip of a blade travel in 2.5 minutes, to the nearest metre?
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11/23/20

Precalculus Trigonometry Question
The Giant Sky Wheel is a Ferris wheel in Tokyo with a diameter of 100 meters that completes one full revolution every 16 minutes.1 A rider boards at the bottom of the Ferris wheel which is 15... more
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11/23/20

What are the dimensions of the enclosures that minimize the total cost?
A farmer plans to make two identical and adjacent rectangular enclosures next to a river, each with area 4500 square feet. Since the river floods a lot, the sides of the enclosures to the river... more
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11/22/20

Precalculus Trigonometry question
An ant starts from the point (2, 0) and walks counterclockwise around the circle of radius 2 centimeters centered at the origin. The ant stops walking the first time it reaches a point... more
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11/22/20

HELP ME PLEASE! FIND F
Find f.f ″(x) = −2 + 36x − 12x2,    f(0) = 8,    f ′(0) = 18f(x) =I got -x^4+8x^3-x^2+18x+2 where did I mess up?
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11/22/20

open rectangular box with square base
An open rectangular box with a square base has a surface area of 300 square inches. Find the dimensions that give the maximum volume. What is the maximum volume?HINT: The surface area of an open... more
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11/20/20

derivatives, intergrals, etc
1) Given dy/dx = x+cosx, find y where y (3pi/2)=42) Evaluate: ∫20 x(x-2)(x+5)dx3) a.Estimate the area under the graph of y= x^2 on [0,6] use left endpoint n=3 b. By how much did you overestimate... more
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08/28/20

Triangle Word Problem
Two sets of wires are attached to the top of a tower to stabilize it. The closer wires are at a 50 degree angle to the ground. The second set is 40 feet further away from the first set and makes a... more
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