1,063 Answered Questions for the topic Pre-Calculus
10/26/19
Precalculus question
This problem deals with cars traveling between Bellevue and Spokane, which are 280 miles apart. Let t be the time in hours, measured from 12:00 noon; for example, t = −1 is 11:00 am.(a) Joan drives...
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10/26/19
I need some help on precalculus
Pizzeria Buonapetito makes a triangular-shaped pizza with base width of 30 inches and height 20 inches as shown. Alice wants only a portion of the pizza and does so by making a vertical cut through...
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10/26/19
Precalculus question
Express the area of the shaded region below as a function of x. The dimensions in the figure are centimeters.
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10/26/19
I have a precalculus question and I don't understand how to do it (sorry I'm dumb).
Give the multipart rule for g(x) for the following functions.(a) f(x) = −0.5x − 1(b) f(x) = 2x − 5(c) f(x) = x + 3
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Pre Calculus
10/25/19
Find the doubling time
In 2003 there were 7,225 Starbucks stores. In 2005 there were 10,241 Starbucks stores. If Starbucks continues to increase exponentially at the same rate find the doubling time.
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10/24/19
This is a pre-calculus question
Dave leaves his office in Padelford Hall on his way to teach in Gould Hall. Below are several different scenarios. In each case, sketch a plausible (reasonable) graph of the function s = d(t) which...
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determine whether the pair of lines are parallel, perpendicular, or neither
6x=7y=1-30x=35y=1
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09/14/19
Does the following statement make sense?
My Pre-Cal professor asked my class if the following statement made sense mathematically:"My body temperature is a function of my age."We were assigned to explain why or why not this statement made...
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Pre Calculus Trigonometry
09/13/19
What acute angle (theta) satisfies the equation sin(theta) = cos (2(theta) + 60degrees)?
find an acute angle (theta) that satisfies the equation sin(theta) = cos (2(theta) + 60°)
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09/12/19
what is (4+3i)^4
I got -527+336i but I can't figure out how to get that answer.
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Find 2 functions f and g such that h(x)=[fog](x).
Neither function may be the identity function f(x)=x.h(x)=√(4x+2) +7Can someone give me a step by step explanation because it is kind of confusing and complex to understand, thank you
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Pre Calculus
09/08/19
find a polynomial with integer coefficents
q has a degree 3 and zeros 2, 4i, and -4i.
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please help me with this
Suppose that the revenue R, in dollars, from selling x cell phones, in hundreds, is R(x)=-1.2x^2+246x The cost C, in dollars, from selling x cell phones, in hundreds, C(x)-0.07x^3...
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please help with this function
if f(x)= 4x^3+Ax^2+7x-3 and f(2)=1, what is the value of A?
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08/16/19
What is the polynomial function of least degree whose only zeros are −2 , 3, and 4?
f(x)=x^3(blank)x^2(blank)x(blank)
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08/03/19
PLEASE HELP WITH PROBLEMS MULTIPLE CHOICE
1.Kevin's hydro-electric company charges a 1.7% late fee on an overdue balance. The company charged him $0.76 for an overdue balance. What was the balance on which this fee was based? A) $26.84 ...
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Pre-Calculus. .
The radioactive element carbon-14 has a half-life of 5750 years. A scientist determined that the bones from a mastodon had lost 59.7% of their carbon-14. How old were the bones at the time they...
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Apple And Pie Question
Apple and Pie stand near the foot of a tall mountain and measure their angles of elevation to the summit of the mountain T. Apple stands at point A and measures 37°. Pie stands at point P and...
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07/18/19
still not getting it
You are given that sin(A)=−7/25, with A in Quadrant IV, and sin(B)=−12/13, with B in Quadrant III. Find cos(A+B). Give your answer as a fraction.
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07/17/19
A bridge is covered with triangular panels to keep the kids from looking down and getting scared. If there are seven panels on each side (length of 1.7 meters) of the bridge, find the total area.
Find the total area to cover the bridge. Each panel is an isosceles triangle. B is 70 degrees.
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Pre Calculus Precalculus
07/11/19
How many three-digit numbers can be formed when the leading digit cannot be 0 and the number must be a multiple of 3?
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07/10/19
Can someone give an example of another function whose inverse is only defined if you restrict the domain of the original function?
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Pre-Calculus: Circle
It has a diameter with endpoints A(-1,4) and B(4,2)
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06/26/19
Absolute value function as a piecewise function
Hello, I am a former ninth grader currently taking pre-calculus over the course of the summer. I'm am doing an honors assignment. The assignment involves the function f(x)=|x|. She wants my to...
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