6,938 Answered Questions for the topic mathematics

09/27/21

Please solve a) to c) correctly
A bacteria culture starts with  bacteria and grows at a rate proportional to its size. After  hours there will be  bacteria.(a) Express the population after  hours as a function... more
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09/27/21

Solve the initial value problem correctly

with a) To solve this, we should use the substitution    Enter derivatives using prime notation (e.g., you would enter  for ).b) After the substitution from the previous part, we obtain the... more
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09/27/21

Solve the given initial value problem correctly
y(x)=
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Mathematics College Algebra

09/27/21

Math question please help!
Three times the sum of a number and twelve is 63. What is the number?A) Translate the statement above into an equation that you can solve to answer this question. Do not solve it yet. Use x as your... more
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Mathematics Calculus

09/27/21

math problem I dont get it
Consider the equation 10cos2x=83sinx−34 . There are two values of x in the interval [0,2π] that satisfy this equation. Find those values.Note:Write the exact value but not the approximate... more
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Mathematics Calculus

09/27/21

math problem I do not get this
Consider the equation 3−cot2x=0 . Find all the values of x in the interval [0,2π] that satisfy the equation.Note: Write the exact answer but not the approximate value (For example write 4/5... more
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Mathematics Math Algebra 1 Algebra 2

09/26/21

Mechanics, Transformations

A) What are the domain and range of f(x)? [Note the arrow on the left side and the closed endpoint on the right side]B) Label at least 5 key points on the graph. It helps to write them in a... more
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Mathematics Calculus Calc

09/26/21

Spherical Balloon increasing radius Calculus Problem

The radius of a spherical balloon is increasing at a rate of 3 centimeters per minute. How fast is the volume changing, in cubic centimeters per minute, when the radius is 10 centimeters?
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Mathematics Calculus Calc

09/26/21

Radius increasing sphere Calculus Problem
Helium is pumped into a spherical balloon at a rate of 5 cubic feet per second. How fast is the radius increasing after 2 minutes? Rate of change of radius (in feet per second) = 14400
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Mathematics Calculus Calc

09/26/21

Street light Calculus Problem
A street light is at the top of a 20-ft-tall pole. A 6-ft tall woman walks away from the pole with a speed of 7 ft/sec along a straight path (see figure). How fast is the tip of her shadow moving,... more
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Mathematics Calculus Calc

09/26/21

Street light Calculus Problem
A street light is at the top of a 20-ft-tall pole. A 6-ft tall woman walks away from the pole with a speed of 7 ft/sec along a straight path (see figure). How fast is the tip of her shadow moving,... more
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Mathematics Calculus Calc

09/26/21

Street light Calculus Problem
A street light is at the top of a 20-ft-tall pole. A 6-ft tall woman walks away from the pole with a speed of 7 ft/sec along a straight path (see figure). How fast is the tip of her shadow moving,... more
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Expert Answers •1
Mathematics Calculus Calc

09/26/21

Street light Calculus Problem
A street light is at the top of a 20-ft-tall pole. A 6-ft tall woman walks away from the pole with a speed of 7 ft/sec along a straight path (see figure). How fast is the tip of her shadow moving,... more
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Expert Answers •1
Mathematics Calculus Calc

09/26/21

Street light Calculus Problem
A street light is at the top of a 20-ft-tall pole. A 6-ft tall woman walks away from the pole with a speed of 7 ft/sec along a straight path (see figure). How fast is the tip of her shadow moving,... more
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Mathematics Calculus Calc

09/26/21

Conical Tank Water Leak Calculus Problem
Water is leaking out of an inverted conical tank at a rate of 14100.0 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 6.0... more
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Mathematics Math Algebra 1 Algebra 2

09/26/21

How many employees does Mr. Salt have working each day, how many hours/shifts do they work, how many trucks are delivering & unloading Wonka Bars each day?
Salt's Peanuts normally has most of their workers shell peanuts. However, for 5 straight days Mr. Salt has had his employees opening Wonka Bars looking for the golden ticket. He claims they've been... more
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Mathematics Math Algebra 1 Algebra 2

09/26/21

Convert 19,000 Wonka Bars per hour into various other rates (per minute, per second, per ??
Salt's Peanuts normally has most of their workers shell peanuts. However, for 5 straight days Mr. Salt has had his employees opening Wonka Bars looking for the golden ticket. He claims they've been... more
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Mathematics Round Off

09/26/21

Round off to nearest kilogram

How to round off 155.714kg to the nearest kg?
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09/26/21

Mass balancing (Food engineering)

Raw milk contains 12% solids is pasteurized to 70 degree Celsius before entering the evaporator for concentration. The concentrated milk leaving the evaporator contains 50% solids. During... more
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Mathematics

09/26/21

math 131 college class
The library at a certain university reported that journal prices had increased by 190% over a period of 10 years. The report concluded that this represented a price increase of 19% each year. If... more
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Mathematics Math

09/25/21

It has to do with finding a value in between numbers
I need your help in finding the value in a problem I am working on.It's for chemistry, and it has a lot to do with math. I must find the estimated angle measure when t = 32 minutes. I have an angle... more
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Mathematics Calculus Calc

09/25/21

Implicit differentiation question

If 2x^2+5x+xy =1 and y(1)= -6 find y'(1)=?
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Mathematics Calculus Calc

09/25/21

Implicit differentiation question

If 2x^2+5x+xy =1 and y(1)= -6 find y'(1)=?
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Mathematics Math Algebra 1 Algebra 2

09/24/21

Need helping with correlation coefficents
Just need an explanation and work shown so I can understand how you worked through it so I can finish the rest of the assignment. I know this can also be done in excel but I was not exactly sure... more
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Mathematics

09/24/21

Make predictions using experimental plz answer correctly

Layla's Cupcakes recently sold 7 coconut cupcakes and 14 other cupcakes. Considering this data, how many of the next 9 cupcakes sold would you expect to be coconut cupcakes?
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