2,195 Answered Questions for the topic Pre Calculus

Pre Calculus Math Precalculus

03/19/21

Precalc question

Determine the range of 𝑦 = −5cos(𝑥 + 𝜋) − 3
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Pre Calculus Math Precalculus

03/19/21

Precalc question

Graph: 𝑦 = |3cos(2𝑥 + 𝜋)| 4what would the amplitude, period and five points?
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Pre Calculus Math Precalculus

03/19/21

Precalc question

A point on the unit circle has a y-coordinate of − √21/5 . What is the x-coordinate?
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Pre Calculus Math Precalculus

03/19/21

Precalc Question

f 𝜃 = 3/2 is the angle larger or smaller than a right angle?
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03/19/21

9.7: The total cost​ (in dollars) of producing x food processors is ​C(x)=2200+60x−0.4x^2.
The total cost​ (in dollars) of producing x food processors is ​C(x)=2200+60x−0.4x^2.​(A) Find the exact cost of producing the 51st food processor.​(B) Use the marginal cost to approximate the cost... more
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03/19/21

Find dy/dx for the indicated function y. y=8^x+e^3
Find dy/dx for the indicated function y. y=8^x+e^3dy/dx= ___________ ​(Type an exact​ answer.)
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03/19/21

Find dy/dx for the function y=29^x.
Find dy/dx for the function y=29^x.dy/dx= ______
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03/19/21

Find the equation of the line tangent to the graph of f at the indicated value of x. f(x)= 10e^x+2x​; x=0
Find the equation of the line tangent to the graph of f at the indicated value of x.f(x)= 10e^x+2x​; x=0y= _________
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Pre Calculus

03/19/21

Use factoring to determine the exact solutions: 6e^2x-17e^x+5=0
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03/18/21

10.1: ​Recently, a certain bank offered a 10​-year CD that earns 14.15​% compounded continuously. ​(a) If $50,000 is invested in this​ CD, how much will it be worth in 10 ​years?

​Recently, a certain bank offered a 10​-year CD that earns 14.15​% compounded continuously.​(a) If $50,000 is invested in this​ CD, how much will it be worth in 10 ​years?approximately ​$________... more
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Pre Calculus Math Calculus Precalculus

03/18/21

MATH QUESTION PLSSS HELP
Due to the tide, the depth of water at a dock rises and falls over the course of the day. The depth can be modeled by the following equation:f(t)=4sin⁡(π/12t)+7If you want to tie up your boat at... more
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Pre Calculus Calculus Precalculus Calc

03/18/21

What is the number of seats that will produce the maximum profit?
In planning a restaurant, it is estimated that a profit of $8 per seat will be made if the number of seats is no more than 50. On the other hand, the profit will decrease by 10 cents for each seat... more
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03/17/21

Increasing, Decreasing, and Concavity
The f(x) = x^3 - 6x^2 + 12x + 6 has the following intervals: (-oo,5)U(7,oo)Can someone tell me what interval is this function decreasing, what interval is the concave downward and upward, and what... more
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Pre Calculus Precalculus Pre Calculus

03/17/21

Verify the following identity
1)sin2x+sin4x/cos2x+cos4x=tan3xboth sins are over the cos please show work seeing the problems worked out helps me understand where I went wrong when I first worked it out and I learn better by... more
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03/16/21

determine the type of conic
r=2/1-2sin(theta)any help would be wonderful thx
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03/16/21

determine the type of conic
8x^2+12xy+17y^2=20 any help would be wonderful (:
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03/16/21

Write the point (3,pi/6) with the following conditions

A. r<0, theta>0B. r>0, theta<0C. r>0, theta>0
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Pre Calculus Calculus Finance Calc

03/15/21

​Recently, a certain bank offered a 5​-year CD that earns 2.43​% compounded continuously. ​(a) If $20,000 is invested in this​ CD, how much will it be worth in 5 ​years?
​Recently, a certain bank offered a 5​-year CD that earns 2.43​% compounded continuously.​(a) If $20,000 is invested in this​ CD, how much will it be worth in 5 ​years?approximately ​$________ ... more
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Pre Calculus

03/14/21

Math related to graphing

A function f is given, and the indicated transformations are applied to its graph (in the given order). Write the equation for the final transformed graph.f(x) = |x|; shift downward 9 units and... more
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Pre Calculus Calculus Precalculus

03/11/21

Pre-cal question (parabolic arch)
hey, I'm having a hard time solving part (b) I got the answer for part (a)An arch has the shape of the parabola y = 10 - x^2. A rectangle is fit under the arch by selecting a point (x, y) on the... more
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Pre Calculus

03/11/21

small corporation borrowed $1,500,000
small corporation borrowed $1,500,000 To expand their business. Sam was borrowed at 7%, some at 8% and some at 10% for a total of 130,500 and interest. The amount borrowed at 10% was four times the... more
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Pre Calculus Calculus Precalculus

03/10/21

calc delta y help
Let y=2x2+3x+3. If Δx=0.4 at x=3, use linear approximation to estimate Δyplease help!
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03/10/21

tangent line in y = mx + b format
hi! can someone help be find out the tangent line for f(x) = x^6 at x = 3 in a y = mx + b format?
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Pre Calculus Math Algebra 1 Algebra 2

03/10/21

solve for z. z^3 + 6√3 - 6i = 0
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Pre Calculus Precalculus Pre Calculus

03/10/21

Solve the equation on the interval 0≤x<2π .
2sin^2x=sinx+3
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