How many protons, neutrons, and electrons are in each?
How many protons, neutrons, and electrons are in each?
a. Fluorine-23
b. 59Co
c. molybdenum-96
10/22/16
An addition to a house increases the 275m to 300m.
By what percent was the original floor increased?
How ow will I find the percent?
10/22/16
need help on this.
To convert a temperature from degrees Celsius to degrees Fahrenheit, you multiply the temperature in degrees Celsius by 1.8 and then add 32 to the result. Find F as a linear function of c, and use...
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10/22/16
Latoya drove 792 miles in 11 hours. At the same rate, how long would it take her to drive 936 miles?
How do you set up the problem?
10/22/16
The Basics
Joey has nickels and dimes in his pocket. The number of dimes is 4 times the number of nickels. If Joey has 10 nickels, what is the total value of the money he has in his pocket?
10/22/16
The diameter of Moon is 3,476 kilometers. distance from Earth to Moon is 384,400 km. how many moons could be lined up in a row between earth and the moon?
What we have to do here
10/21/16
if you add solute to a dilute solution, the solution becomes a more what solution?
what isthe solution more of ?
10/21/16
The sum of two numbers is 13. If one number is subtracted from the? other, the result is 3. Find the numbers.
i need help with this math problem really bad because if i fail this class im done.
10/21/16
Given the straight line (d) of equation: – 2x + y + 3 = 0.
a- Write the equation of (d) in the form y = ax + b. b- Write down the slope of (d) and give its verbal description. c- Find y-intercept and give its verbal description. d- Graph the straight line...
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How do I solve d/dx e^(2x)(x^2 + 5^x)?
I believe I am supposed to use the chain rule? I am still new to the concept so please, step by step how would I solve this?
10/21/16
Variation Equation
If y varies directly as x and inversely as m squared and r squared, and y = 5/3 when x = 1, m = 2 and r = 3 find y when x = 3, m = 1 and r = 8
10/20/16
How do I start?
nt frequency of a circuit may be found by the formula fequalsStartFraction 1 Over 2 pi StartRoot LC EndRoot EndFraction where f is in cycles per? second, L is in? henrys, and C is in farads. Find...
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10/20/16
A line that includes the points (5,t) and (4,8) has a slope of - 10. What is the value of t?
t=______
10/20/16
Suppose the perimeter of a rectangular floor is 100 feet. Find the dimensions of the floor if the length is twice the width.
I need help solving this linear system and learn how to set it up correctly
10/20/16
A beam of light with intensity of 3.5 milliwatt and wavelength of 750 nm is striking a solar cell. Calculate the number of photons incident on the cell.
i just need help to solve this
10/20/16
Im confused how I would solve this?
A train leaves Santa Monica Station and travels north at a speed of 75 kilometers per hour. Two hour later, an express train leaves on a parallel track and travels north at 125 kilometers per hour....
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10/19/16
A woman earns $2500 per month and budgets $250 per month for food. What percent of her monthly income is spent on food
A woman earns $2500 per month and budgets $250 per month for food. What percent of her monthly income is spent on food
10/19/16
I believe this is e rule but i'm not sure.. help?
Find y′ if x^(3y) = y^(2x).
1. y′= 3y^2(ln x − 1) 3y ln x + 2x
2. y′ = y^2(ln x − 1)
3y ln x − 2x
3. y′ = y(2x ln y − 3y) x(3y ln x − 2x)
4....
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10/19/16
distance an object falls
The distance that an object falls from rest, when air resistance is negligible, varies directly as the square of the time. A stone dropped from rest travels 144 feet in the first 3 seconds. How far...
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10/19/16
MATH PROBLEM FRACTION
the product of the numerator and denominator of a certain fraction is 588. What is the fraction if it is equivalent to 3/4?
10/18/16
help need to answer asap!!!!!!!!!!!!!!!!!!
A race car driver won a 400 mile race with a speed of 108.5 miles per hour. Find the? driver's time.
10/18/16
find the derivative of 5 sinh(ln t). For this I tried so many different ways and I continually get it wrong.
The function is 5 sinh(ln t). In all my methods I assumed 5 to be a constant, and pulled it out.
for the first try I said
5 cosh (ln(t))*1/t
then I tried using and replacing the e's in the...
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10/18/16
one number is 3 more than twice the other number.if the sum of the numbers is 24 what are the two numbers
one number is 3 more than twice the other number.if the sum of the numbers is 24 what are the two numbers
10/18/16
You eat 3/10 of a pack of hot dogs. Your friend eats 1/5 of the pack of hot dogs. What fraction of the pack of hot dogs do you and your friend eat?
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10/18/16
physics help
On May 20, 1999, Robbie Knieval easily cleared a narrow part of the grand canyon during a world record setting long distance motorcycle jump 69.5m. He left the jump ramp at 10 degrees angle above...
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