03/27/18

how to solve this problem in written form using the vocabulary words quadratic formula, factoring,completing the square ,discriminant
5t2 + 4t-3=0  quadratic formula
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03/27/18

Jan cut out 374 paper snowflakes. Nate cut out 215 more than Jan. How many fewer did Jan cut out than Nate?
Teacher says the answer is 159. I say 215
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03/27/18

Zeros of functions
form a third degree polynomial with real coefficients such that -5+i and 1 are zeros please show me the steps so that I can have an example of how to do this
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03/27/18

is it possible to have a cylinder and a cone that has the same height and radius to have the same volume
is it possible to have a cylinder and a cone that has the same height and radous to have the same volume
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03/27/18

Calculate the pressure, in atmospheres, of 1.93 mol of helium gas in a 10.0L container at 25 ∘C.
need to know the pressure of this equation
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03/27/18

Word problem
A certain species of birds was introduced in a certain county 25 years ago. The population doubles every 10 years, and now the population is 13,000. a) What was the initial size of the population?... more
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03/27/18

After 3 days a sample of radon-222 has decayed to 58% of its original amount.
After 3 days a sample of radon-222 has decayed to 58% of its original amount. a) What is the half life of radon-222? b) How long will it take the sample to decay to 20% of its original amount?
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03/27/18

A proportional relationship is represented by the equation 2x = 18y. If y = kx, where k is the constant of proportionality, then what is the value of k?
I need this answer so please stop giving me stuff to do.
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03/27/18

Donna spent $64 on fruit at the grocery store. She spent a total of $80 at the store. What percentage of the total did she spend on fruit?
What percentage of the total did she spend on fruit?
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03/27/18

An object is thrown straight downward from the edge of an 80 foot high cliff. Its initial velocity is 64 feet per second. After how many seconds will the object
can u helpme solve this problem  
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03/27/18

An object is dropped from the edge of an 80 foot high cliff. After how many seconds will the object hit the ground at the bottom of the cliff?
can u help me solve this question
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03/26/18

A laboratory assistance initially counts 100 bacteria in a Petri dish. Research says this species doubles every hour. Write a model for this situation
approximathey how long would it take for the species to reach 1000 in count . Show your work that leads to your conclusion.
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03/26/18

a sample of Bismuth-210 decayed to 33% of its original mass after 8 days
find the half-life of this element. find the mass remaining after 12 days.  
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03/26/18

help me please!
An object is dropped from 49 feet below the tip of the pinnacle atop a 949-ft tall building. The height h of the object after t seconds is given by the equation h equals negative 16 t squared plus... more
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03/26/18

The pH reading of a glass of liquid is given. Find the hydrogen ion concentration of the liquid. (Give your answers in scientific notation)
I cannot seem to figure these out. I'm super stressed and I want to cry because of that... HELP ME. IT'S DUE TONIGHT AT 11:19PM
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03/26/18

A town doubles its size every 43 years. If the population is currently 15,000, what will the population be in 86 years?
 solve this please
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03/26/18

a number r is decreased by 13 is at most 15
can you please show me how to do this problem 
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03/26/18

Which of the following describes the root(s) of the equation 4x=3x^2+5
A. Two distinct complex roots B. Exactly one complex root C. Two distinct real roots D. Exactly one real root   
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03/26/18

The mass of a single potassium atom is 6.50*10 to the negative 23 power grams. How many potassium atoms would there be in 313 milligrams of potassium?
I really need to solve this so I can learn how the steps go for it.
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03/26/18

What is the area of a 4x4 cm square
 i need help with homewrk
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03/26/18

What is the solution set for 2x^2+20=8 ?
A. negative square root of 6 B. Square root of 6, and A^ C. negative i outside of the square root of 6 D. i outside of the square root of 6 and C
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03/26/18

Forces: Newton's Laws
The kinetic coefficient of friction of a rubber tire on wet concrete is 0.70. What is the mass of a tractor that, with its brakes locked, can be dragged by a tow truck exerting a horizontal force... more
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03/26/18

Forces: Newton's Laws
An elevator of mass 800 kg accelerates at 3.0m/s^2[down]. What force does the cable exert on the elevator?
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03/26/18

The function f(x)=x^2-3x-4is graphed on the coordinate plane. Consider f(x-3) Which option correctly describes the transformations to the graph?
Answers could be A. Up 3 B. down 3 C. Left 3 D. Right 3  
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03/26/18

The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass.
The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with 125 grams of a radioactive isotope, how much will be... more
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