11/21/17

There are 20,324 students in the district. Of them, 1821 walk to school and the rest take the bus. About how many take the bus?
I know the answer is 18,503 but the choices are 18,000 and 19,000. I rounded it to 19,000 but the book says the answer is 18,000. Why?
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11/21/17

is the square root of 11 a rational number
I'm having trouble with square root and rational and irrational numbers!!
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11/21/17

Find and interpret the horizontal and vertical intercepts for the following height equation.
Find and interpret the horizontal and vertical intercepts for the following height equation. Round your answers to two decimal places when necessary.   h=-16t2+61t+5  (h is in feet and t is in... more
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11/21/17

Exponential Growth
The half life of a certain substance is 27 years. How fast is a 500-gram sample of this substance decaying after 115 years?   Q=Q0ekt   and k=(ln(1/2)/half-life
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11/21/17

The mass of the particles that a river can transport is proportional to the sixth power of the speed of the river.
The mass of the particles that a river can transport is proportional to the sixth power of the speed of the river. A certain river normally flows at a speed of 2 miles per hour. What must its speed... more
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11/20/17

Can you help me with my Precalculus?
im really struggling. The question reads “How much 60% acid solution must be added to 20 ml of 30% solution to achieve a 50% acid solution?” can you please help me?
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11/20/17

what is the opposite of -9
I dont know what the opposite of -9 is
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11/20/17

john brown became the first president of the confederate states of america
Is it true or false
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11/20/17

How much gallons of diesel will I get with 250$
This is for a semi- tractor trailer 
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11/20/17

When current arrives at a node where it can spilt up and go in more than one direction , will it always split equally or can it sometimes split unequally ?
Physics question 
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11/20/17

if the volume of a gas is 8 cubic feet at a tempurature of 200k and a pressure of 25 pounds per square inch what is the volume of the gas at a tempurature of 18
if the volume of a gas is 8 cubic feet at a tempurature of 200k and a pressure of 25 pounds per square inch what is the volume of the gas at a tempurature of 180k and a pressure of 20 pounds per... more
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11/20/17

what is the order of magnitude difference between 17075200 and 323895
the area of russia is 17075200 km2 and the area of norway is 323895 km2 and i need to find the order of magnitude difference between the two countries
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11/20/17

Identify one way to rewrite the expression using the Distributive Property 8X19
Identify one way to rewrite the expression using Distributive Property 8X19
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11/20/17

What is the difference between f(1) and f(0)????
PLEASE ANSWER COMPLETLY. 
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11/20/17

What frequency does bob hear
Bob’s neighbors are also annoyed by Bob’s flute and file a noise complaint. Two policeofficers get into a squad car to investigate. They turn on the siren at 920 Hz and speed towards Bob’s house at... more
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11/20/17

by 1893 was there more than 160,000 miles of railroad track in the united states
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11/20/17

What is 1/3(x2)=7
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11/20/17

A turtle travels one half of a foot in 4 seconds. How many feet will a turtle travel in 7 seconds? Express the answer as a decimal.
this is a question from my math class it’s a intro to ore algebra class. 
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11/20/17

A watermelon weighs 8,475 grams. A scale measured the weight with an error of 12% under the actual weight. What was the measured weight?
A watermelon weighs 8,475 grams. A scale measured the weight with an error of 12% under the actual weight. What was the measured weight?
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11/20/17

Find the value of V
A ball is hit by a bat from a point on flat, horizontal ground. The ball leaves the ground with speed V m/s, at an angle of θ above the horizontal, where tan θ = 3/4. The ball lands a horizontal... more
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11/20/17

ideal gas law - physics
A monatomic ideal gas expands from point A to point B along the path shown in the figure. What is the change in internal energy of the gas during the process? (The horizontal axis is marked in... more
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11/20/17

Find the ball's speed of projection
A golf ball is struck by a golf club from a point on flat, horizontal ground. It leaves the ground at an angle of 40° to the horizontal. 2 seconds after being struck, the ball is travelling upwards... more
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11/20/17

calculate either [H3O+] or [OH-] for the solutions below.
1)[OH-] = 1.77 x 10^-7 M [H3O+] = ?M 2)[H3O+] = 8.25 x 10^-9 [OH-] = ?M 3)[H3O+] = 0.000653 M [OH-] = ?M
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11/20/17

a type of graph used to display data is called a?
this is a vocabulary word, but I have a list of questions I cant figure out but its chapter 2 review of my bridge math textbook  
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11/20/17

what is (-5x^2y^3) (xy)
(-5x2y3) (xy)
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