1,430 Answered Questions for the topic Maths

1d

Precalc question
A street light is 10 feet above a straight bike path. Olav is bicycling down the path at a rate of 15 MPH. At midnight, Olav is 33 feet from the point on the bike path directly below the street... more
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5d

Serah gets three times as much pocket money as Raj got two years ago. Raj pocket money goes up by €1 a year. He now gets €3 a week. How much did Raj get two years ago?
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14d

Averaging percentages

How do you find the average for 3 percentages?
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14d

Rank in order (Highest to Lowest) change in operating expenses from year 1 to year 2
Question: Rank in order from highest (1) to lowest (5) in terms of the change in operating expensesKey: m = millionoperating expenses:A - year1=12.8m & year2=9.9mB - year1=25.1m &... more
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15d

Rank in order (Highest to Lowest) change in operating expenses from year 1 to year 2
Question: Rank in order from highest (1) to lowest (5) in terms of the change in operating expensesKey: m = millionoperating expenses:A - year1=12.8m & year2=9.9mB - year1=25.1m &... more
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15d

Change in operating expenses from year 1 to year 2
Question: Rank in order from highest (1) to lowest (5) in terms of the change in operating expensesKey: m = millionoperating expenses:A - year1=12.8m & year2=9.9mB - year1=25.1m &... more
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16d

Prove inequality
1/3 < 1/13+1/15+1/17+...+1/61+1/63 < 4/3
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19d

The Area of a triangle is 80 cm^2, Perimeter is 8 cm, so what is the length of the radius of the inscribed circle?
Choices:A)5 cmB)10cmC)20cmD)None of these
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19d

Precalc question
An isosceles triangle has sides of length x, x and y. In addition, assume the triangle has perimeter 12.(a) Find the rule for a function that computes the area of the triangle as a function of x.... more
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19d

Precalc question
An isosceles triangle has sides of length x, x and y. In addition, assume the triangle has perimeter 12.(a) Find the rule for a function that computes the area of the triangle as a function of x.... more
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19d

Precalc question
An isosceles triangle has sides of length x, x and y. In addition, assume the triangle has perimeter 12.(a) Find the rule for a function that computes the area of the triangle as a function of x.... more
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20d

4,1,-8,_,-20,29,-32,43
What is the missing number?
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25d

Find the Amplitude Equation
A wave has the following equation:y=0.3(0.7+1.2cos(pi/2))What is it's Amplitude?Is it just 0.3 because that's what I thought?
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26d

Function of a single angle! Please Help!
Express this as a function of a single angle:tan 55°-tan 17°/1+tan 55°tan 17°
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26d

Express the following as a function of a single angle.
cos(60°)cos(-20°)-sin(60°)sin(-20°)I got sin40. Is that correct?
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26d

Solve for X Problem
Solve for x where pi/2 ≤ x ≤ 3pi/2.-4 cos^2(x) + 4sqrt(2) sin(x) + 6=0.Enter your answer as a fraction.
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26d

Find x where 0 ≤ x ≤ 2pi
4sqrt(2) tan x - sqrt(2)= 3sqrt(2) tan xEnter your answers as fractions from smallest to largest.
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27d

Simplify this Cosine Problem
sin^2x-cos x (cos(-x)) sin^2x
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27d

Solve this Problem
sin(-x)/cos(x)Solve this problem.
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27d

Simplify this Sine Problem
cos(pi/2 - x)[sec(pi/2 - x)-cos(pi/2 - x)]
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27d

Simplify the Problem
cos(pi/2 - x)[sec(pi/2 - x)-cos(pi/2 - x)]
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27d

Sec Csc Problem
Which expression is not equal to the following: sec^2(x)csc^2(x)A. sec^2(x) + csc^2(x)B. cos^2(x) + sin^2(x)C. sec^2(x) + sec^2(x) cot^2(x)D. (1+ tan^2(x)) csc^2(x)
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28d

Find the Horizontal Shift

y=-2cos(1/4x- pi/2)Find the horizontal shift of this problem.
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28d

Graphing Question For Trig
Which of the following points is not on the graph of y= cot x?A. (5pi/6, -sqrt(3))B. (7pi/4, -1)C. (4pi/3, sqrt(3))
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29d

Cosine Problem for Trig
if y= -cos x, what x-value corresponds to a y-value of 1 between 0 and 2 pi
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