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

14d

Averaging percentages

How do you find the average for 3 percentages?

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

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

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

16d

Prove inequality

1/3 < 1/13+1/15+1/17+...+1/61+1/63 < 4/3

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

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

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

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

20d

4,1,-8,_,-20,29,-32,43

What is the missing number?

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?

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°

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?

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.

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.

27d

Simplify this Cosine Problem

sin^2x-cos x (cos(-x)) sin^2x

27d

Solve this Problem

sin(-x)/cos(x)Solve this problem.

27d

Simplify this Sine Problem

cos(pi/2 - x)[sec(pi/2 - x)-cos(pi/2 - x)]

27d

Simplify the Problem

cos(pi/2 - x)[sec(pi/2 - x)-cos(pi/2 - x)]

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)

28d

Find the Horizontal Shift

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

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))

29d

Cosine Problem for Trig

if y= -cos x, what x-value corresponds to a y-value of 1 between 0 and 2 pi
1 3 4 5 6 7 58

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