2,195 Answered Questions for the topic Pre Calculus

Pre Calculus Math Algebra 1 Algebra 2

08/20/20

Help me with math please

What amount P should be invested at 8% per annum, compounded annually, so that $2000 will be available after 7 years?
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Pre Calculus Calculus Precalculus Conics

08/19/20

Write the point (3, pi/6) with the following conditions: a. r < 0, theta > 0 b. r > 0, theta < 0 c. r > 0, theta > 0
Write the point (3, pi/6) with the following conditions: a. r < 0, theta > 0 b. r > 0, theta < 0 c. r > 0, theta > 0
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Pre Calculus

08/18/20

Confirm that f and g are inverses by showing that f(g(x))=x and g(f(x))=x.
f(x)=(x+4)/6g(x)=6x-4
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Pre Calculus

08/18/20

The standard form given (-2,6) & (5,2)
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Pre Calculus

08/16/20

Express the number in the form a/b, where a and b are integers

27^-2/3 express the number in the form a/b, where a and b are integers
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Pre Calculus

08/08/20

Precalculus one
At the beginning of an experiment, a scientist has 312 grams of radioactive goo. After 60 minutes, her sample has decayed to 9.75 grams. What is the half-life of the goo in minutes?
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Pre Calculus Calculus

08/05/20

Not good at solving with triangle
Use the Law of Sines to find the indicated side x. (Assume a = 334. Round your answer to two decimal places.)x = 
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Pre Calculus Math Calculus

08/04/20

Use the Law of Sines to solve for all possible triangles that satisfy the given conditions.Round your answers to one decimal place. Below, enter your answers so that ∠A1 is smaller than ∠A2.)

b = 21, c = 38, ∠B = 22° ∠A1 = ∠A2 =∠C1 = ∠C2 = a1=    a2=
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Pre Calculus Calculus

07/27/20

solve rational inequality
Solve the rational inequality and write the solution in interval notation 2 − 5/𝑥 + 2/ 𝑥 ^2 ≥ 0
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Pre Calculus Math Geometry Precalculus

07/24/20

A telephone mast 1,400 yards from an observer subtends an angle of 3.5°. Use the arc length formula to estimate the height of telephone mast.
The height of the telephone mast is approximately how many yards?
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Pre Calculus Precalculus Pre Calculus

07/23/20

Write the cubic polynomial function f(x) in expanded form with zeros −4, −2, and 1, given that f(−1)=−24 .
Write the cubic polynomial function f(x) in expanded form with zeros-4,-2 and 1, given that f(-1) =- 24.f(x)=
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Pre Calculus Precalculus Pre Calculus

07/23/20

Find (w∘g)(-3) for w(x)=10x^2-7x+2 and g(x)=7x-10.

Find (w∘g)(-3) for w(x)=10x^2-7x+2 and g(x)=7x-10. (w∘g)(-3)
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Pre Calculus Precalculus Pre Calculus

07/23/20

Given s(z)=z^(2)-11z+24 and w(z)=z-3, find (sw)(z)
Given s(z)=z^(2)-11z+24 and w(z)=z-3, find (sw)(z)(s/w)(z)=
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Pre Calculus Precalculus Pre Calculus

07/23/20

Given s(z)=11+2z^(2) and w(z)=3z^(2)-11z+2, find (s+w)(z).
Given s(z)=11+2z^(2) and w(z)=3z^(2)-11z+2, find (s+w)(z).(s+w)(z)=
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Pre Calculus Precalculus Pre Calculus

07/23/20

Line l passes through point (12,2) and line p is the graph of 4x-7y=22 . If l⊥p , what is the equation of l ?
Line l passes through point (12,2) and line p is the graph of 4x-7y=22 .If l⊥p , what is the equation of l ?
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Pre Calculus Precalculus Pre Calculus

07/23/20

Write the equation of the line that passes through point (6, 2) with slope 2/3 in point-slope form and in slope-intercept form.
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Pre Calculus Precalculus Pre Calculus

07/23/20

Simplify. Assume that all variables result in nonzero denominators.
(5)/(x^(2)6x-16)-(2)/(x^(2)-4)
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Pre Calculus Precalculus Pre Calculus

07/23/20

Rationalize the denominator
1/√3 −10
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Pre Calculus Precalculus Pre Calculus

07/23/20

Simplify (2 q^2 r^3 s^2)^2
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Pre Calculus

07/20/20

After 4 ​days, or 96 ​hours, the amount of free chlorine in the pool will be____ppm.
Under certain water​ conditions, the free chlorine​ (hypochlorous acid,​ HOCl) in a swimming pool decomposes according to the law of uninhibited decay. After shocking a​ pool, the pool​ boy, Geoff,... more
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Pre Calculus

07/17/20

You go to the doctor and he gives you 12 milligrams of radioactive dye.
After 16 minutes, 4.75 milligrams of dye remain in your system. To leave the doctor's office, you must pass through a radiation detector without sounding the alarm. If the detector will sound the... more
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Pre Calculus Math Calculus Precalculus

07/14/20

Determine whether the equation represents Y as a function of X
Y = | 4 - x |
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07/14/20

Evaluate the function at each specified value of the independent variable and simplify.
f(t) = 3t + 1(a) f(2) (B) f(-4) (C) f( t + 2 )
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07/14/20

Evaluate the function at each specified value of the independent variable and simplify.
f(x) = {2x + 1, x < 0 {2x + 2, x ≥ 0 (A) f(-1) (B) f(0) (C) f(2)
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Pre Calculus Math Calculus Precalculus

07/14/20

Evaluate the function at each specified value of the independent variable and simplify.
f(x) = {x² + 2, x ≤ 1 {2x² + 2, x > 1(a) f(-2) (b) f(1) (c) f(2)
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