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Math Question do not solve the question point me in the right direction
As of early 2014, the world's population was about 7.2 billion people. The population of the United States was 317 million.
The area of New York City is 305 square miles. If in early 2014 every person in the world moved into New York City, how many square
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motorcycle2008
13
mins ago
0
7
3
+20
Math question on Oil
It is estimated that in 2009 the United States consumed 18.69 million barrels of oil a day. A barrel of oil is 42 U.S. gallons. Assuming a U.S. population of 306 million, estimate per capita consumption in gallons, rounding each number.
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motorcycle2008
30
mins ago
0
8
1
+20
How many blogs will be set up in one month (30 days)?
The number of blogs has grown rapidly. Assuming that two new blogs are created each second, how many blogs will be set up in one month (30 days)?
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motorcycle2008
45
mins ago
0
8
1
+20
Math question
Light travels at 186,000 miles per second. How
many FEET does it travel in a microsecond? (A microsecond is a millionth of a second.)
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motorcycle2008
1 hour ago
+1
7
0
+65
In square $ABCD$, $E$ is the midpoint of $\overline{BC}$, and $F$ is the midpoint of $\overline{CD}$. Let $G$ be the intersection of $\overl
In square ABCD, E is the midpoint of line BC, and F is the midpoint of line CD. Let G be the intersection of line AE and line BF. Prove that DG = AB.
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MIRB14
1 hour ago
+1
24
2
+358
help
How many times does the digit 9 appear in the list of all integers from 1 to 500?
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SmartMathMan
Jan 20, 2018 2:55:45 AM
0
19
1
What is the quadratic regression equation for the data set?
What is the quadratic regression equation for the data set?
yˆ= −1.225x2 +88x +1697.376
yˆ= 1.225x2 +88x +1697.376
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Guest
Jan 20, 2018 2:25:12 AM
0
18
1
Help please.
The equation y=−3.5x2−0.5x+65 models the height of a ball in inches for each bounce.
What is the best approximate for the height of the ball after the 3rd bounce?
7 in.
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Guest
Jan 20, 2018 2:22:46 AM
+1
28
3
+61
catalan sequence
In a 6 by 6 grid, how many pathways can be drawn from S to F, (always moving to the right or down) that cross the main diagonal at least once? (You can use the Catalan sequence for this question, but it is possible to solve without it.) Don't try drawing
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jonathanxu999
Jan 20, 2018 1:46:08 AM
0
15
1
What is the quadratic regression equation for the data set?
What is the quadratic regression equation for the data set?
yˆ= 0.032x2 − 0.601x −0.255
yˆ= 0.032x2 + 0.601x −0.255
yˆ= 0.032x2 − 0.601x
read more ..
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Guest
Jan 20, 2018 1:32:04 AM
0
19
1
+518
@Hectictar
A guitar player plays a 440 Hz note, and then increases the effective length of that same guitar string by a factor of two and plays it again. What is the new frequency?
By any chance do you know any physics ?
read more ..
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Julius
Jan 20, 2018 12:23 AM
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