915 Answered Questions for the topic Pre-Calculus

11/19/20

Precalculus help

Consider the graph of y=x^3. It is slid 3 units to the left, then reflected in the x-axis, and finally slid 8 units down. What is the resulting equation?
Pre Calculus Precalculus Pre Calculus

11/19/20

Simplify without a calculator: 1−2sin^2(15°)

Simplify without a calculator: 1 - 2sin2(15°)
Pre Calculus Precalculus Pre Calculus

11/19/20

Simplify without a calculator: 2 sin(22.5∘) cos(22.5∘)

Pre Calculus Precalculus Pre Calculus

11/19/20

If csc ( x ) = 13/12 (in Quadrant-I), find sin ( 2 x ) =

If csc ( x ) = 13/12 (in Quadrant-I), find sin ( 2 x ) =
Pre Calculus

11/19/20

What function expresses the volume of the box in terms of the side of the squares cut out?

A 5-sided, open topped box is to be formed from a rectangular piece of cardboard that is 28 inches by 15 inches. Congruent squares are to be cut from each corner and the resulting flaps will be... more

11/19/20

What is the pH?

If a sample of a certain solution is determined to have a [H3 O+ ] concentration of 4.36 x 10-10 moles/liter, what is its pH? Round off your answer to one decimal place.
Pre Calculus Math Algebra 2 Calculus

11/17/20

Decide if each expression represents one third the sum of 5 and 4.

Choose one of the options below. 1/3x(5+4) 1/3x5+4 (1/3x5)+(1/3x4) 1/3+(5x1/3)+4

11/17/20

Find a formula for h(x). Give an exact expression.

h is a trigonometric function of the form h(x)=a cos(bx+c)+d.Below is the graph of h(x). The function has a maximum point at (3,6) and a minimum point at (6.5, -9). Find a formula for h(x). Give an... more

11/17/20

What is the amplitude of the function?

Below is the graph of a trigonometric function. It intersects its midline at (π, 2.75) and it has a maximum point at point at (4/5 ​π, 6.75). What is the amplitude of the function?(The pi in the... more

11/16/20

What is the period of the function? Give an exact value.

Below is the graph of a trigonometric function. It intersects its midline at (−3.5,−0.8)left parenthesis, minus, 3, point, 5, comma, minus, 0, point, 8, right parenthesis and it has a maximum point... more
Pre Calculus Math Prealgebra Precalculus

11/15/20

Find the equation of the line in slope-intercept form:

A line passes through the points P(-2, -3) and Q(3, -5). Find the equation of the line in slope-intercept form.
Pre Calculus Precalculus Pre Calculus

11/14/20

If tan(θ) = 4/3, 0 ≤ θ ≤ π/2, then

If tan(θ) = 4/3, 0 ≤ θ ≤ π/2, thensin(θ) equals ____cos(θ) equals ____sec(θ) equals ____

11/13/20

Identify four ordered pairs on the graph of the function.

Identify four ordered pairs on the graph of the function.f(x)= 12x2+15x+3/ -3x-6

11/13/20

Identify four ordered pairs on the graph of the function.

f(x)= 7/x+6 Identify four ordered pairs on the graph of the function.

11/13/20

  Identify four ordered pairs on the graph of the function

f(x)=−2x+9/x−1 Identify four ordered pairs on the graph of the function.

11/13/20

Use synthetic division to determine if the given value for k is a zero of this polynomial. If not, determine p(k).

Use synthetic division to determine if the given value for  is a zero of this polynomial. If not, determine .p(x)=2x3−3x2−11x−20; k=4 is k a zero of this polynomial?

11/12/20

If tan(θ) = 4/3, 0 ≤ θ ≤ π/2, then

If tan(θ) = 4/3, 0 ≤ θ ≤ π/2, then sin(θ) equals ____cos(θ) equals ____sec(θ) equals ____

11/12/20

Without using a calculator, compute the sine and cosine of (7π) /4 by using the reference angle.

Without using a calculator, compute the sine and cosine of (7π) /4 by using the reference angle.What is the reference angle? ____ radiansIn what quadrant is this angle? ___ sin (7π) /4 =cos (7π) /4 =
Pre Calculus Calculus Precalculus

11/12/20

If sin(θ) = 1/4 and θ is in the 2nd quadrant, find cos (θ)

If sin(θ) = 1/4 and θ is in the 2nd quadrant, find cos (θ) cos(θ) = ?

11/11/20

The area of a triangle is 150 cm squared. If the area of a triangle is given by the formula A=1/2bxh...

The area of a triangle is 150 cm squared. If the area of a triangle is given by the formula A=1/2bxh, write an equation which relates the triangles base, b, as a function of its height, h. (In... more
Pre Calculus Calculus Pre Algebra

11/10/20

Factor a function given a zero

Given that 4−4i is a zero, factor the following polynomial function completely. Use the Conjugate Roots Theorem, if applicable.f(x)=x4−7x3+12x2+128x−384
Pre Calculus Math Precalculus Sat Math

11/09/20

NEED HELP ON PRECAL HW ASAP!!!

A pizza pan is removed at 8:00PM from an oven whose temperature is fixed at 425F into a room that is a constant 74F After 5​ minutes, the pizza pan is at 300F ​(a) At what time is the temperature... more

11/05/20

Please explain how to solve the following equation using Vieta's Formulas.

If x1,x2 are the roots of the equation x2-8x+11=0, determine the value of x13+x12+x1+x23+x22+x2.

11/05/20

Precalculus help

How do I find the possible rational zeros of the function g(x) = x^3 -5x^2 -7x +6

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