Tutors Answer Your Questions about Functions (FREE)
Question 1199089: Which of the following functions has domain (infinity, plus infinity) and range (-1,1)?
One of the following is the correct answer. Which one is correct?
A) f(x)=sinx
B) f(x)=arcsinx
C) f(x)=tanx
D) f(x)=arctanx
Click here to see answer by ikleyn(52747)  |
Question 1199284: in the previous exercise, assume that past experience with this show indicates that average attendance should equal 7500 persons.
(a) what ticket price would allow civic arena to break even
(b) what ticket price would allow them to earn a profit of $15,000
Click here to see answer by ikleyn(52747)  |
Question 1199350: A high-technology electronics firm needs a special microprocessor for use in a microcomputer it manufactures. Three alternatives
have been identified for satisfying its needs. It can purchase the microprocessor from a supplier at a cost of $10 each. The firm can also
purchase one of two pieces of automated equipment and manufacture the microprocessors. One piece of equipment costs $80,000 and would
have variable costs per microprocessor of $8. A more highly automated piece of equipment costs $120, 000 and would result in variable cost of
$5/unit. Determine the minimum cost alternative for different ranges of output.
Click here to see answer by Theo(13342)  |
Question 1199392: the number of seats in the rows of a stadium form an arthemetic sequence. two employees of the stadium determine that the 13th row has 189 seats and the 25th row has 225 seats. how many seats are there in 55th row
Click here to see answer by ikleyn(52747)  |
Question 1199554:
What is the range of the relation ( - 3, 6), (5, 2), ( - 1, - 5), (6, - 3)?
A.
{ - 3, 5, - 1, 6}
B.
{ - 5, - 3, 2, 6}
C.
{6, 2, - 5, 3}
D.
{ - 3, 6, 2, 5}
Click here to see answer by greenestamps(13195)  |
Question 1199828: 7.
Let q represent the number of widgets sold each week by a store, p represent the price in dollars of a widget, and D represent the demand.
Suppose that the demand function is q=D(p)= 120/square root of p
.
What is the decrease in the demand when p is changed from $9 to $25?
Second question - Let f(x,y)=5y+10x what would be the value of f(6,2)
Click here to see answer by math_tutor2020(3816) |
Question 1200364: In a certain state the maximum speed permitted on freeways is 65 mi/h, and the minimum is 40 mi/h. The fine F for violating these limits is $25 for every mile above the maximum or below the minimum.
(a) Complete the expressions in the following piecewise defined function, where x is the speed (in mi/h) at which you are driving.
{ (blank) If 0 < x < 40
f(x) = { (blank) If 40 <_ x <_ 65
{ (blank) If x > 65
(b) Find F(25), F(45), and F(80).
F(25)=
F(45)=
F(80)=
Click here to see answer by ikleyn(52747)  |
Question 1200364: In a certain state the maximum speed permitted on freeways is 65 mi/h, and the minimum is 40 mi/h. The fine F for violating these limits is $25 for every mile above the maximum or below the minimum.
(a) Complete the expressions in the following piecewise defined function, where x is the speed (in mi/h) at which you are driving.
{ (blank) If 0 < x < 40
f(x) = { (blank) If 40 <_ x <_ 65
{ (blank) If x > 65
(b) Find F(25), F(45), and F(80).
F(25)=
F(45)=
F(80)=
Click here to see answer by math_tutor2020(3816) |
Question 1200475: If f(x) = {(2, 3), (4, 8), (7, - 1)} and g(x) = {(8, 2), ( - 1, 4), (2, 7)},
find (f o g)(x), if it exists.
Click here to see answer by math_tutor2020(3816) |
Question 1200656: write a function rule to represent the situation. the volume V of a cube shaped box whose edge lengths are 1 inch greater than the diameter d of the ball that the box will hold. Variables: V (volume) d(diameter)
Click here to see answer by ikleyn(52747)  |
Question 1201323: Hi, can someone help me with this question please? I'm trying hard to put the formula the correct way but I'm not sure
w(x)=(e^x-11 lnx+340x^5)/(7x^3-32e^x+5 lnx )
What's the rule and what are three steps that can be applied when differentiating?
Click here to see answer by math_tutor2020(3816) |
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