1,084 Answered Questions for the topic ACT Math

11/25/19

Circle Quadratic System of Equation problem
x2+y2=25y=x2-13If possible, rewrite the system shown above, keeping one of the equations the same but changing the other equation to satisfy each of the following stated requirements. If the change... more
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Act Math

11/21/19

The degree measure of the larger of two supplementory angles is 3 times the measure of the smaller angle. What is the measure, in degrees, of the larger angle.
Act question, can't find the solution to this.
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Act Math

11/21/19

Math homework geometry

raise c to the 5th power, then find the difference of the result and d
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11/19/19

Word Problem Solving
An 80-feet rope is attached to a boat 7 feet above the water level and a boy jumps over the wake while wakeboarding. What is the distance between his hands and the water level if the angle given is... more
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11/19/19

Word Problem Solving
a jet airliner, flying initially at 300 mi/hr due east, suddenly enters a region where the wind is blowing 100 mi/hr, pushing the aircraft in the direction 30° north of east. what is the resultant... more
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11/19/19

Find the horizontal shift
what is the horizontal shift of this function? y=8.1(2+3cos(x-pi/2))
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11/18/19

Problem Solving, Parallelograms
Two Adjacent Sides Of A Parallelogram Are 29' And 37", Respectively. The Angle Between These Two Sides Is 65° Find The Length Of C.
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11/18/19

Area of Triangles Problem Solving

a painter needs to find the area of the gable end of a house. what is the area of the gable if it is a triangle with two sides of 42 ft that meet at a 105° angle? round to the nearest hundredth.
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11/14/19

Half-Angle Formulas
Simplify for x in the third quadrant:(sin x/2-cos x/2)^2
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11/14/19

Double Angle Formulas
Simplify:tan x sin 2x
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11/12/19

Double-Angle Formulas
Find sin 2θ if θ is in the first quadrant and tan θ=40/9.
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11/10/19

Finding Domain of functions?
find domain of the functions and show workf(x) = 5x2 + 2x - 1g(x) = 1 - 2x2s(y) = 3y/y + 5g(y) = √y-10
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11/10/19

testing for functions represented algebraically??
I can't figure out how to solve these determine whether equations represents a function and show work.  x2 + y2 = 4   2x + 3y = 4  (x-2)2 + y2 = 4  y= √x+5
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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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Act Math

11/08/19

What is the perimeter, in feet, of a rectangle whose length is twice its width and whose width is 6 feet?
need help on this question. i am trying to answer it but it's not making sense
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11/06/19

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

11/04/19

The expression −8x3(7x6 − 3x5) is equivalent to:

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11/02/19

Finding Domain of Function
find domain of the function. f(x) = 5x2 + 2x - 1 g(x) = 1 - 2x2s(y) = 3y y + 5g(y) = √y-10
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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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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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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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10/25/19

Trig Class Question, Please Help If You Can
Find x where 0 ≤ x ≤ pi/2.5sqrt(3)/3 cos x= 1 + sqrt(3) cos x
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