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Post New Question
All Questions
+0
234838 Questions
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826
4
Problem Solving
Let's pretend the entire ocean is 11 kilometers deep (depth of Mariana Trench, the lowest part of Earth).
If the Earth were the size of a billiard ball, how much water (in mL) would there be in all billiard-ball-Earth oceans?
Good luck
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Guest
Feb 14, 2014
0
851
15
+1313
OK, so I get the quadratic formula. it ain't such a tough nut rather it is more like a gentle baby. but to save upsetting it on this day of romance I'd like
OK, so I get the quadratic formula. it ain't such a tough nut rather it is more like a gentle baby. but to save upsetting it on this day of romance I'd like to resolve one thing about square rooting in maths/this formula.
after half of the formula I have,
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Stu
Feb 14, 2014
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599
1
decimal to a fraction
what is 8.6 as a fraction?
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Guest
Feb 14, 2014
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699
1
greates comen facter of 18 and 35
what is the gcf of 18 35
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Guest
Feb 14, 2014
+1
753
0
+118654
Valentine's mathogram
Would you like to send a Valentine's mathogram?
Highlight, right click and choose goto.
http://mathogram.desmos.com/
Melody
Feb 14, 2014
0
719
2
+4
7sin(x)=0, 0<x<2pi
Hi, I was wondering how to solve 7sin(x)=0, 0<x<2pi for the exact radian values over the given intervals
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wlc17math
Feb 14, 2014
0
628
1
Mean and Standard Deviation?
The test scores were normally distributed with a mean of 43 and a standard deviation of 3.
(a) Approximately what percentage of the scores lies between 40 and 46?
(b) Approximately what percentage of the scores lies between 43 and 46?
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Guest
Feb 14, 2014
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585
2
math
:)what is 9/2 as a percent
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Guest
Feb 14, 2014
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599
1
math
what is the angle whose sin is 6/7
can you explain how do we use a calculator for that ?
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Guest
Feb 14, 2014
0
451
1
fractions
what is 2/8 of 24
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Guest
Feb 14, 2014
Feb 13, 2014
0
705
2
fractions
what is -1.2 turned into a fraction
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Guest
Feb 13, 2014
0
1553
3
Trigonometric Equations
Solve the equation bolow given that 0 < x < 2pi
cos2x + 1/2 = 0
(sqrt(3) tan x + 1)(2 sinx - sqrt(3)) = 0
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I've been having trouble with this problem.
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Guest
Feb 13, 2014
0
865
1
+39
Credit Card Charges
Nelson charged $542.95 for a new printer on May 12 and $56.79 for a restaurant bill on May 22. Calculate the interest charged, at 19.5% simple interest, on the payment date of June 21st.
(RECALL: I = PrT)
Okay, so I am having troubles figuring out
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tannawirsch
Feb 13, 2014
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622
1
Asking math question
What is fraction 2 2/5 x 80
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Guest
Feb 13, 2014
0
551
1
maths
Jenna has 28 marbles. She wants to give them as gifts to each of her 4 chihuahuas.
How many marbles does each chihuahua get?
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Guest
Feb 13, 2014
+1
1889
0
+118654
Positive and negative numbers
Positive and negative numbers
For multiply and divide it is very simple. If the signs are the same then the answer is positive. If the signs are different the answer is negative. See, simple.
For addition and subtraction it is a bit trickier.
I
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Melody
Feb 13, 2014
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452
1
maths
how do math
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Guest
Feb 13, 2014
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1325
10
Math Methods #2
A girl has some beads. She use 1/3 of the beads to make a bracelet. She uses 3/5 of the beads to make a necklace. She used 36 more beads for the necklace. How many beads did she use for the bracelet?
Please give me a method, not the answer!
And no
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Guest
Feb 13, 2014
0
769
3
Math Methods
There is a total of 5,170 in an account. Mrs. Jefferson deposits $420 in her account and Mr. Jefferson deposits $621 in his account. Now they have the same amount of money. How much money did they each have at first?
Please just give me a method to solve
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Guest
Feb 13, 2014
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2112
1
maths
a semicircle has a diameter of 20cm work out the perimeter of the semicircle take the value of pi to be 3.14
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Guest
Feb 13, 2014
0
462
1
MATH QUESTION PLZ HELP
:mrgreen: Hi
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Guest
Feb 13, 2014
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415
0
Math
if ive got 2 apples and drop one, how many apples do i have?
Guest
Feb 13, 2014
0
784
4
Logarithm problem?
9 ln e 2 + 4 log46 - log42 - 7 log721 + log 71
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Guest
Feb 13, 2014
0
622
2
answer
-5+(-3)-(-7)
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Guest
Feb 13, 2014
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1215
1
logic puzzle from "hardest logic puzzle ever"
Puzzle 1: Noting their locations, I place two aces and a jack face down on a
table, in a row; you do not see which card is placed where. Your problem is to
point to one of the three cards and then ask me a single yes-no question, from the
answer
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Guest
Feb 13, 2014
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