Tutors Answer Your Questions about Systems-of-equations (FREE)
Question 624238: Find the vertex, the line of symmetry, and the maximum or minimum value of f(x). Graph the function.
f(x)=1/5 (x+5)^(2)+6
The vertex is ?
( type an ordered pair)
The line of symmetry is?
(Type an equation)
What is the maximum?minimum value of f(x)?___
Is the value, f(-5) = 6, a minimum or maximum?
Click here to see answer by ewatrrr(10682)   |
Question 624861: A carpenter is building a rectangular room with a fixed perimeter of 264 ft. What dimensions would yield the maximun area?
What is the maximum area?
The length that would yield the maximum area is ? ft.
The width that would yield the maximum area is ? ft.
The maximum area is ? sq.ft.
Click here to see answer by ewatrrr(10682) |
Question 625276: The number of tickets sold each day for an upcoming performance of Handel's Messiah is given by N(x)= -0.4x^2+8x+15, where x is the number of days since the concert was first announced. When will daily tickets sales peak and how many tickets will be sold that day?
Tickets sales will peak ? days after the concert was first announced.
The number of tickets sold on that day will be ?
(Round to the nearest integer)
Click here to see answer by nerdybill(6948)  |
Question 625833: I am gearing up for my test and this is a practice question and I just can't remember the formula.
one person traveled h hours at 60 mph. a second person traveled 2h-5 hours at 40 mph. both traveld the same distance.
how many hors did the second person travel?
5
10
15
20
25
Click here to see answer by stanbon(57203) |
Question 627188: The city of Waterville has received a grant for $950,000 to spend on various projects: streets, urban renewal, and parks. The mayor has decided that the same amount should be spent on streets as is spent on parks, and that the amount spent on urban renewal should equal the total amount spent on streets and parks. How much money will the city spend on each project?
Click here to see answer by josmiceli(9645)  |
Question 627773: Question: Mr. Hoerner spent $45.50 last month to see 11 movies.
If video rentals cost $3, movie matinees cost $4.50, and evening movies cost $7,
how many of each type of movie did he see?
I came up with 2 equations: r + m + e = 11
3r+4.5m+7e=45.50,
but using substitution or additive inverses didn't work for me.
Click here to see answer by solver91311(16868)  |
Question 627773: Question: Mr. Hoerner spent $45.50 last month to see 11 movies.
If video rentals cost $3, movie matinees cost $4.50, and evening movies cost $7,
how many of each type of movie did he see?
I came up with 2 equations: r + m + e = 11
3r+4.5m+7e=45.50,
but using substitution or additive inverses didn't work for me.
Click here to see answer by josmiceli(9645) |
Question 631430: Please help! Could you tell me if I made a mistake in this problem and if I did, where?
3x + y = 6
x − 2y = 2
y = 6 − 3x
x − 2(6 − 3x) = 2
x − 12 − 6x = 2
−5x − 12 = 2
+12 +12
x = −2.8
3(−2.8) + y = 6
−8.4 + y = 6
+8.4 +8.4
y = 14.4
Click here to see answer by ewatrrr(10682) |
Question 631430: Please help! Could you tell me if I made a mistake in this problem and if I did, where?
3x + y = 6
x − 2y = 2
y = 6 − 3x
x − 2(6 − 3x) = 2
x − 12 − 6x = 2
−5x − 12 = 2
+12 +12
x = −2.8
3(−2.8) + y = 6
−8.4 + y = 6
+8.4 +8.4
y = 14.4
Click here to see answer by Theo(3458)  |
Question 633177: Solve using a system of two equations and two unknowns. A computer parts company wants to make a rectangular memory board that has a perimeter of 28 centimeters and a diagonal length of 10 centimeters. Find the dimensions of the board. Consider the length to be the longer side.
Click here to see answer by ankor@dixie-net.com(15622)  |
Question 633515: The question asks to solve these systems of equations: 3x + 5y – z = 2; -x – 8y + 3z = -6; 3z = 2x.
I am not sure if this is or is not a linear equation, but i cannot figure out how to go about this problem. Help would be greatly appreciated. Thank you!
Click here to see answer by ewatrrr(10682) |
Question 634935: 3x+4y=-25
&
2x-3y=6
If you would be willing to help me I would appreciate it. I have gotten as far as setting these two equal to each other but am stuck as far as finding the x. Anything would be appreciated. Thank You.
Click here to see answer by ewatrrr(10682) |
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