1,084 Answered Questions for the topic ACT Math

01/13/20

functions domain and range
For each function below, state domain and range, name the intervals where function is increasing or decreasing, and describe end behavior.f(x) = 1/2 x2y = x2 + 3y = -3x2
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01/12/20

Vector and parametric equation
1) What is the vector and parametric equation for: the horizontal line through (pi,e)2) At time t, the position of an object moving with constant velocity is given by the parametric equations... more
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01/12/20

factoring polynomial
using the factors (3x + 2) & (x - 1), find the remaining factor(s) of f(x) = -6x4 + 23x3 - 12x2 - 11x + 6 and write polynomial in fully factored form.
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01/10/20

What would be a scatter plot for this data? How to describe the correlation?
The table gives the number of one-pound loaves of bread you could buy for $1.00 in the United States for various years since 1900. Make a scatter plot of the data and describe the correlation... more
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01/08/20

roots of polynomial
if x = -1 is a root of x3 + 4x2 - x - 4 = 0, use synthetic division to factor polynomial completely, and list all real solutions of equation
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01/08/20

Factoring polynomial
Can't figure out how to solve this problem:using the factors (x+5) and (x+2), find the remaining factor(s) of f(x) = x3 + 6x2 + 3x - 10 and write the polynomials in fully factored form.
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01/08/20

Solve the system or linear equation using any method
X+y=82x-y=1 :D
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01/08/20

Phone rates, money
A long distance carrier charges a flat rate of $.09 per minute for telephone calls. A second carrier charges $.30 for the first minute and $.06 for each additional minute. After how many minutes... more
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01/08/20

Write the expression as a complex number in standard form
Write the expression as a complex number in standard form7+3i/4-i 
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01/08/20

Write the expression as a complex number in standard form
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01/08/20

Simple interest

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01/08/20

Phone rates, money

A long distance carrier charges a flat rate of $.09 per minute for telephone calls. A second carrier charges $.30 for the first minute and $.06 for each additional minute. After how many minutes... more
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01/08/20

Science connection
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Act Math Math Sat Math

01/03/20

A line segment on the number line from 0 to 1 is marked at points corresponding to log [1, 2, 3, ..., 10], thus dividing it into 9 adjacent segments.
The length of the longest such segment minus the length of the shortest such segment represents which value among these choices: log(9/2) , log(18), log (2/9), log (1.8), or log(9^2) ?
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Act Math Geometry Sat Math

01/02/20

You must cross a wide field, which is paved with circular flagstones, travelling only between centers of the stones. How far must you walk?
The circular flagstones are arranged tangent to each other in the closest possible packing, i.e. with six stones surrounding each stone. The field width is W. Neglect the perturbations caused by... more
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Act Math Algebra 1 Sat Math

01/02/20

How many integer ordered (x,y) pairs represent possible solutions to a set of (x,y) condition inequalities?
How many ordered pairs of integers represent possible solutions to the set of conditions:y > (1/10)x + (1/10)y < 5 – 0.99xy < -1 + 1.1x
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01/02/20

In a system of pressure-assisted pumps linking 3 tanks, what are the steady-state tank volumes achieved, given an initial volume of 10 gallons in tank A?
A system of 3 tanks (A, B, and C) are linked by 6 pressure-assisted pumps. From tank A, a pump pumps 0.1 gallon/minute per gallon in tank A, to tank B. Another pump pumps 0.2 gallons/minute per... more
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12/29/19

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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12/29/19

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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12/29/19

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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12/29/19

rocket maximum question
The path of a rocket is given by the function, h(t) = -3t2 + 30t + 73, where 'h' is the height in meters and 't' is the time in secondsa. what is maximum height of rocketb. at what time does rocket... more
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12/28/19

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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12/28/19

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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12/28/19

Simplify this Cosine Problem
sin^2x-cos x (cos(-x)) sin^2x
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12/28/19

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