05/01/21

ive been trying this for hours this is precalculus

Find the time required for an investment of 5000 dollars to grow to 8300 dollars at an interest rate of 7.5 percent per year, compounded quarterly.Your answer is t= ____   years.
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05/01/21

im not so good on this i need help its precalculus

The count in a bacteria culture was 700 after 10 minutes and 1900 after 30 minutes. Assuming the count grows exponentially,What was the initial size of the culture?   ___Find the doubling... more
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05/01/21

im lost on this precaluclus hw help please
The doubling period of a bacterial population is 20 minutes. At time t=90 minutes, the bacterial population was 90000.What was the initial population at time t=0?  ___ Find the size of the... more
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05/01/21

this questions is too hard i need help its precalculus thanks

The half-life of Palladium-100 is 4 days. After 24 days a sample of Palladium-100 has been reduced to a mass of 5 mg.What was the initial mass (in mg) of the sample?  _____What is the mass 6 weeks... more
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05/01/21

i dont know how to start this precalculus hw
The half-life of Radium-226 is 1590 years. If a sample contains 500 mg, how many mg will remain after 2000 years?  _____mgGive your answer accurate to at least 2 decimal places.
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05/01/21

Counting Techniques Question
How many seven-digit telephone numbers can be made if the first three digits must be differentand the number cannot start with “0”?Please explain + steps, thank you.
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05/01/21

1.construct a tree diagram to illustrate the possible contents of a sandwich made...
Construct a tree diagram to illustrate the possible contents of a sandwich made from white or brown bread, ham, ham, chicken, or beef, and mustard or mayonnaise. How many different sandwiches are... more
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05/01/21

Please help with answer
The terminal side of angle θ in standard position lies on the line 4y +3x = 0 inQuadrant II. Find all six trigonometric functions of θ .
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05/01/21

The partial fraction decomposition of 36/x2 -4 can be written in the form of f(x)/x-2 + g(x)/x+2 , where

The partial fraction decomposition of 36/x2 -4 can be written in the form of f(x)/x-2 + g(x)/x+2 , where f(x)=g(x)=
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05/01/21

The partial fraction decomposition of 36/x2 -4 can be written in the form of f(x)/x-2 + g(x)/x+2 , where

The partial fraction decomposition of 36/x2 -4 can be written in the form of f(x)/x-2 + g(x)/x+2 , where f(x)=g(x)=
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05/01/21

The partial fraction decomposition of x2 +56/x3+x2 can be written in the form of f(x)/x +g(x)/x2+h(x)/x+1,where

The partial fraction decomposition of x2 +56/x3+x2 can be written in the form of f(x)/x +g(x)/x2+h(x)/x+1,where f(x)=g(x)=h(x)=
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05/01/21

How many lateral and total faces are there in a cylinder?
I'm a bit confused as to how many faces a cylinder has, lateral and total
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05/01/21

You need to make a new six digit password using any letter or number.
a) How many different options could you have if you’re allowed to repeat a letter ornumber?b) How many different options could you have if you aren’t allowed to repeat a letter ornumber?I'm very... more
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05/01/21

algebra problem by substitution

solve x=-2y+35/5 2x-3y=14
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05/01/21

graph y=3-2cos(x-pi/2) over two periods
so far I have period: 2pi , amp: 2 , horizontal shift: pi/2 , vertical shift: 3, shifts up but I can't figure out how to find the points to graph.
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05/01/21

Find the area of a regular nonagon that has a side length of 16 units.

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05/01/21

The count in a bacteria culture was 400 after 10 minutes and 1500 after 40 minutes. Assuming the count grows exponentially,

What was the initial size of the culture? bacteriaFind the doubling period. minutes Find the population after 60 minutes. bacteria When will the population reach 13000. minutes
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04/30/21

If 2cos(x)=-1, the x = [ ? ] in the second quadrant?
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04/30/21

Factor 8 sin ^2 (x) + 2sin(x)-3=0
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04/30/21

For a right triangle, if the hypotenuse is 13 and the adjacent of the θ is 8, then the angle θ is ( ? )
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04/30/21

Convert ( y=4x^2 ) to a polar equation.

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04/30/21

If we convert x^2 + y^2 into polar, it is ( ? ).
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04/30/21

State the center and the radius of the circle. x2+(y+1)2=16
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04/30/21

Write and Solve Inequalities in Context
David has $520 to spend at a bicycle store for some new gear and biking outfits. Assume all prices listed include tax. He buys a new bicycle for $303.93. He buys 4 bicycle reflectors for $10.99... more
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04/30/21

Context Inequality Systems
Claire has x dimes and y quarters, having at least 16 coins worth no more than $3 combined. No more than 22 of the coins are dimes and no more than 4 of the coins are quarters. Solve this system of... more
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