2,690 Answered Questions for the topic SAT math

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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12/28/19

Simplify this Sine Problem
cos(pi/2 - x)[sec(pi/2 - x)-cos(pi/2 - x)]
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12/27/19

Simplify the Problem
cos(pi/2 - x)[sec(pi/2 - x)-cos(pi/2 - x)]
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12/27/19

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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12/27/19

Sine Function Problem
a sine function has an amplitude of 4/7, period of 2pi, horizontal shift of -3pi, and a vertical shift of 1. what is the y-value of the positive function at x=pi/2?
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12/27/19

Find the Horizontal Shift

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

12/27/19

Write a rule that represents the function
(0,0)(1,4)(2,16)(3,36)(4,64)
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12/27/19

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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12/26/19

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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12/26/19

Please Help With This Trig Problem
5(cos 220° + i sin 220°)/2(cos 115° + i sin 115°)A. 5/2(cos 105° + i sin 105°)B. 2/5(cos 105° + i sin 105°)C. 5/2(cos 335° + i sin 335°)D. 10(cos 335° + i sin 335°)
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12/25/19

Find the Quotient
5(cos 220° + i sin 220°)/2(cos 115° + i sin 115°)A. 5/2(cos 105° + i sin 105°)B. 2/5(cos 105° + i sin 105°)C. 5/2(cos 335° + i sin 335°)D. 10(cos 335° + i sin 335°)
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Sat Math

12/25/19

If 2a-b=4, what is the value of 4^a/2^b?
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12/25/19

Trig Problem Please Help
A car travels in the direction of 135°. What is its compass heading?(In Degrees)When I did the problem, I got 315°. Is that correct?
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12/25/19

Word Problem Please Help
An airplane flies 200 km due west from city A to city B and then 300 km in the direction of 30.0∘ north of west from city B to city C. How far is city C from city A?
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Sat Math

12/25/19

After a 20% discount, followed by a 20% tip, the price of a meal for two is $24. What was the original price for both meals?
I know the answer to this question but one step still confuses me. I know a 20% tip is really 1.2, so my teacher did 1.2y=24. She made “y” the amount of the original meal with the discount. I don’t... more
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12/23/19

polynomial function problem
given : p(x) = x(x+5)(x+3)(x-2)2what degree is the polynomial function?what is the end behavior of p(x)?
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12/23/19

Polynomial problems
Find all real zeros of the polynomials and determine the multiplicity of each. (solve by factoring)f(x) = x3 - 6x2 - 9x + 54f(x) = x4 + 5x3 + 6x2
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12/20/19

Please help me this is hard.
Max is told that two triangles ΔXYZ and ΔSTU share 2 sets of congruent angles and one set of congruent sides: ∠X≅∠S, ∠Z≅∠U, XZ≅SU. Max concludes the triangles are congruent. Is Max correct? 
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