2,563 Answered Questions for the topic Maths

11/10/19

Precalculus question
The initial price of buzz.com stock is $10 per share. After 20 days the stock price is $20 per share and after 40 days the price is $25 per share. Assume that while the price of the stock is not... more
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11/08/19

Sum and Difference Formulas
Express the following as a function of a single angle.tan145°+tan85°/1-tan145°tan85°
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11/08/19

Sum & Difference Formulas
Express the following as a function of a single angle.tan(-34°)+tan(-110°)/1-tan(-34°)tan(-110°)
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11/07/19

Find an equation of the normal line to the parabola y = x^2 − 9x + 8 that is parallel to the line x − 7y = 9
my answer was 1/7x+19/2 but it was incorrect, any help is appreciated.
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11/06/19

Sum & Difference Formulas
Find sin105° without using a calculator.
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Maths

11/06/19

how long will it take for a person to run 4000 m at an average speed of 5m/s
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Maths Algebra 1

11/05/19

justin is 15 years older than his sister emily, in six years he will be double her age. what are their current ages

justin is 15 years older than his sister emily, in six years he will be double her age. what are their current ages
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11/05/19

Precalc question
If the graph of the quadratic function f(x) = x^2 + dx + 3d has its vertex on the x-axis, what are the possible values of d? What if f(x) = x^2+3dx−d^2+1
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11/05/19

Sum and Difference Formulas
Express cos(60°)cos(-20°)-sin(60°)sin(-20°) as a function of a single angle.
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Maths

11/04/19

2. A number minus 32 is twelve. What is the number?
: ) a numberrrrrrrrrrrrrrrrrrrrrrr min
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Maths

11/03/19

What is 5 to the power of -7 as a product

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11/01/19

Trig Question Thank You In Advance
Solve for x by factoring where pi/2 ≤ x ≤ pi.3 csc x cot^2 x = csc x
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11/01/19

Trig Question, Solve For X

Solve for x where pi/2 ≤ x ≤ 3pi/2.- 4cos^2 x + 4sqrt(2) sin x + 6 = 0.When I did the problem I got 5pi/6, but I am not sure if that is correct.
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Maths

11/01/19

just need the ansewer
Find the cardinal number for the set. c= {x I x≤5 and >10}
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10/31/19

Find the interval of convergence?
Find the interval of convergence for ∑ (x^n)/(2^n) from n=0 to infinity. The answer is (-2, 2). Please show all your work. Thank you.
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10/31/19

Help me with this integral problem?
Show whether ∫ 1/x^4 dx from -1 to 2 is convergent or divergent. If convergent, evaluate the integral. Here's my work:After integrating, I got [-1/(3x^3)] from -1 to 2 and I got -3/8 as the answer... more
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10/30/19

Express the area of the shaded region below as a function of x. The dimensions in the figure are centimeters.
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10/30/19

A ball thrown upward height above the ground after t seconds is H ( t ) = 88 ⋅ t − 16 t ^2 feet. Find the time t when the ball will be traveling downward at 22 feet per second
A ball thrown upward in the air, and its height above the ground after t seconds is H ( t ) = 88 ⋅ t − 16 t ^2 feet. Find the time t when the ball will be traveling downward at 22 feet per... more
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10/29/19

Trig Question, Please Help If You Know How To Do The Problem
I keep having to ask for help with this lesson, so if you have time time and are able to help me, step-by-step would be a huge help. Find x where pi ≤ x ≤ 2pi. 4 cos^2 x - 2 = sec^2 x - tan^2 x
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Maths

10/29/19

In a class full of men and women, 3/5 of the class are women. What is the ratio of men to women in its simplest form?
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10/29/19

I have a precalculus problem
A baseball diamond is a square with sides of length 90 ft. Assume Edgar hits a home run and races around the bases (counterclockwise) at a speed of 18 ft/sec. Express the distance between Edgar and... more
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10/28/19

Trig Question, Help Needed Fast
find x where 0 ≤ x ≤ 2pi. cos x - tan^2 x=1. give your answers as a fraction ordered from least to greatest.
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10/27/19

I'm stuck on this precalc question
Give the multipart rule for g(x) for the following functions. g(x) = |f(x)|(a) f(x) = −0.5x − 1(b) f(x) = 2x − 5(c) f(x) = x + 3
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10/27/19

I still don't understand this precalculus question
I need some help on precalculusPizzeria Buonapetito makes a triangular-shaped pizza with base width of 30 inches and height 20 inches as shown. Alice wants only a portion of the pizza and does so... more
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10/26/19

Precalculus question
This problem deals with cars traveling between Bellevue and Spokane, which are 280 miles apart. Let t be the time in hours, measured from 12:00 noon; for example, t = −1 is 11:00 am.(a) Joan drives... more
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