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Tutors Answer Your Questions about absolute-value (FREE)
Question 35374: Hi, i was ask to Find the sum or difference of these problems:
(x^2-2x+7)+(-5x^2-3)i have an idea like to distribute the problem but i don't know if i should multiply or add
and find the the product of: 2x^2(x+3)i really am stuck with this promblem, should i multiply the 2x^2 with x and 3, i'm confused please help me.
Click here to see answer by rapaljer(3625)   |
Question 34016: Hi. How would I figure out the surface area for a right square pyramid with a length of 6.5 cm and the base being 2.5 cm?
I'm a little confused because on each triangular surface, it says 2.5 cm on each half. Does that mean I need to add them for each side, equalling 5 cm on each side?
Thanks
Click here to see answer by venugopalramana(3286)  |
Question 35608: how do you solve problems with fractions in them? the problem is when manufacturing 7/16 inch bolts the difference between the size of the bolt and 7/16 inch must be at most 1/50 inch to be acceptable. write an inequality for the acceptable size of bolts using b for the bolt size.
Click here to see answer by rapaljer(3625) |
Question 31444: 1) There are 10 people in the room. 6 are male and 4 are female. 5 of them have been arrested at some point in their lives. 4 of these five people are male. If you select 5 people at random what is the probability that at least 3 of them are males who have been arrested and at least one of them is a female who has not been arrested?
Click here to see answer by stanbon(26297) |
Question 36279: Suppose you are going to have pizza with several friends. You are thinking of getting one large pizza - say its diameter is 16 inches. However, some people are vegetarians, and so you decide to get two little pizzas, each of which is 8 inches in diameter. Suddenly, someone asks, "Are we getting the same amount of pizza if we get two little pizzas instead of one large one?"
What do you think? Justify your response.
Can someone explain this to me? Thanks
Click here to see answer by narayaba(40) |
Question 36273: HI. Here is my problem:
Michico and Patricia are going to play a spinner game. These are the rules:
a) When it is a player's turn, she spins both spinners.
b) Then she adds the two numbers that the arrows point to.
c) If the sum is odd, Michico wins, even if it was not her turn.
d) If the sum is even, Patricia wins, even if it was not her turn.
Patricia tries a test spin first. Here is what she spins: The sum from the first spin is 3, because 3 + 0=3, Michico wins. Michico says, "I like this game. I have a better chance to win than you do." Patricia says, "No, I have a better chance to win than you do."
Use mathematics to decide which girl is right.
Thanks!
Click here to see answer by checkley71(8405) |
Question 36276: Here is the problem:
Suppose you buy a new car whose advertised average mileage is 25 miles per gallon. After driving your car for several months, you find that its mileage is 21.4 mpg. You phone the manufacturer and learn that the standard deviation of gas mileage for all cars of the model you bought is 1.15 mpg. Does it appear that your car is getting unusually low gas mileage? Explain your reasoning.
Thanks!
Click here to see answer by stanbon(26297) |
Question 36272: hi. Could you help me understand standard deviation? Here is my problem:
Consider the following data set: 28, 34, 41, 19, 17, 23.
a) Compute the mean and standard deviation of the data set
b) Suppose each value is mulitplied by two and then 5 is added to each of the values after each is multiplied by two. Compute the mean and standard deviation of this new data set.
Thanks for your help!!!
Click here to see answer by venugopalramana(3286) |
Question 36962: Hi. How would I go about solving this?:
Michico and Patricia are going to play a spinner game. These are the rules:
a) When it is a player's turn, she spins both spinners.
b) Then she adds the two numbers that the arrows point to.
c) If the sum is odd, Michico wins, even if it was not her turn.
d) If the sum is even, Patricia wins, even if it was not her turn.
Patricia tries a test spin first. She spins:
The sum from the first spin is 3, because 3+0=3. Michico wins.
Michico says, "I like this game. I have a better chance to win it than you do."
Patricia says, "No, I have a better chance to win than you do."
Use mathematics to decide which girl is right.
Thanks for your help!
Click here to see answer by checkley71(8405) |
Question 36963: Hi. I just asked this question, but forgot to add that the numbers on the spinners are as follows: spinner #1 - 8,3,4 and spinner #2 - 0,1,4
Michico and Patricia are going to play a spinner game. These are the rules:
a) When it is a player's turn, she spins both spinners.
b) Then she adds the two numbers that the arrows point to.
c) If the sum is odd, Michico wins, even if it was not her turn.
d) If the sum is even, Patricia wins, even if it was not her turn.
Patricia tries a test spin first. Here is what she spins: The sum from the
first spin is 3, because 3 + 0=3, Michico wins. Michico says, "I like this
game. I have a better chance to win than you do." Patricia says, "No, I have a
better chance to win than you do."
Use mathematics to decide which girl is right.
Thanks!
Click here to see answer by checkley71(8405) |
Question 37861: The area of a triangle is 250 in^2. Find the lengths of its legs if one leg is 5 inches longer than the other.
i know area is 1/2bh. let x=shorter leg and x+5=longer leg so i know area=1/2*x*x+5=250 i need to solve for x.
Click here to see answer by fractalier(1804)  |
Question 37861: The area of a triangle is 250 in^2. Find the lengths of its legs if one leg is 5 inches longer than the other.
i know area is 1/2bh. let x=shorter leg and x+5=longer leg so i know area=1/2*x*x+5=250 i need to solve for x.
Click here to see answer by Kathy(4) |
Question 39425: I am having trouble solving absolute value inequalities which involves exponents.
1. |x - 1| = |x to the second power - 2x +1|
2. |x to the second power + x - 2| < x + 3
Your help will be appreciated.
Click here to see answer by kev82(145) |
Question 41188: How do I solve the below equation? I know I have to add the two absolute value equations, but can not find any information on how to add them.
If f(x) = | x + 2| and g(x) = | x - 3 |, then (f + g)(x) =
Click here to see answer by zeynep(43) |
Question 41948: If every person in our class shakes hands with every other perison in the class exactly once
(a) How many handshakes will have taken place if there are 22 studemts in the class
(b) If there were 35 students in the class, how many handshakes would there be?
(c) What if there were n people?
Click here to see answer by psbhowmick(456) |
Question 41948: If every person in our class shakes hands with every other perison in the class exactly once
(a) How many handshakes will have taken place if there are 22 studemts in the class
(b) If there were 35 students in the class, how many handshakes would there be?
(c) What if there were n people?
Click here to see answer by fractalier(1804) |
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