19,133 Answered Questions for the topic Algebra

03/26/22

method of shells and volume of a solid
Use the method of shells to find the volume of the solid obtained by revolving the region bounded by y=2x^2 - x^3 and y=0 around the y axis.
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03/26/22

method of disks
Rotate a circle of radius r around the x axis and use the method of disks to prove the formula for the volume of a sphere of radius r.
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03/26/22

area region of a graph
Find the area of the region bounded by the graphs of f(x)=5-x^2 and g(x)=x^2 -3
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Algebra

03/26/22

How do i solve a mixture problem usi g a system of linear equation
Two mechanics worked on a car. The first mechanic worked for 5 hrs, and the second mechanic worked for 15hrs. Together they charged a total of 1875. What was the rate charged per hour by each... more
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03/26/22

PLEASE help with statistical probability questions!
In a class of 26 students, 14 have a cat and 7 have a dog. There are 5 students who have a cat and a dog. What is the probability that a student chosen randomly from the class does not have a dog?
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Algebra Math Algebra 2

03/25/22

A farmer bought a number of pigs for $189.

A farmer bought a number of pigs for $189. However, 8 of them died before he could sell the rest at a profit of 7 per pig. His total profit was $19. How many pigs did he originally buy?He... more
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Algebra

03/25/22

Suppose that $2000 is loaned at a rate of 10%, compounded semiannually. Assuming that no payments are made, find the amount owed after 5 years.
Do not round any intermediate computations, and round your answer to the nearest cent
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Algebra

03/25/22

Please Help Me!!
A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). There are two... more
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03/25/22

PLEASE help with statistical probability questions!
In a math class with 19 students, a test was given the same day that an assignment was due. There were 11 students who passed the test and 14 students who completed the assignment. There were 3... more
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03/25/22

PLEASE help with statistical probability questions!
In a math class with 19 students, a test was given the same day that an assignment was due. There were 11 students who passed the test and 14 students who completed the assignment. There were 3... more
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Expert Answers •2

03/25/22

please help me with statistical probability question!
Age 20-29 Age 30-39 Age 40-49 Age 50 & over Total High school only 946 1118 369 1010 3443 Some college 1088 1277 566 2106 5037 Bachelor's degree 646 1045 472 2083 4246 Master's... more
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03/25/22

Please help with statistical probability questions
In a certain Algebra 2 class of 30 students, 16 of them play basketball and 8 of them play baseball. There are 12 students who play neither sport. What is the probability that a student chosen... more
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03/25/22

In March, a family starts saving for a vacation they are planning for the end of August. The family expects the vacation to cost $1544.

In March, a family starts saving for a vacation they are planning for the end of August. The family expects the vacation to cost $1544. They start with $125 at the start of each month they plan to... more
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Algebra Math

03/25/22

a. Let x=0 correspond to 2010 and x=20 correspond to 2030. Find C and a so that f(x)=Cax models the data. b. Estimate the gas concentration in 2029.
The table lists future concentrations of a certain greenhouse gas in parts per billion​ (ppb), if current trends continue. Year 2010 2015 2020 2025 2030 Gas​ (ppb) 0.71 0.78 0.87 0.96 1.06
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Algebra Math

03/25/22

Find the amount of money a woman owes at the end of 3 years if 4​% interest is compounded continuously on her ​$1800 debt.
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Algebra Algebra 1

03/25/22

Michelle's Room: Answer Bolded Question Pls
Michelle is measuring the dimensions of her living room so she can install new flooring. She measures the length at 4√12 feet with her radical tape measure and then measures the width at 3√8 feet.... more
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03/24/22

help with statistical probability
In a class of 25 students, 17 have a cat and 7 have a dog. There are 5 students who have a cat and a dog. What is the probability that a student who has a cat also has a dog?
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Algebra Mathematics

03/24/22

Math Algebra Word Problem.
Piper is deciding between two truck rental companies. Company A charges an initial fee of $35 for the rental plus $3 per mile driven. Company B charges an initial fee of $80 for the rental plus $2... more
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03/24/22

help with statistical probability

Age 20-29 Age 30-39 Age 40-49 Age 50 & over Total High school only 1413 661 799 602 3475 Some college 2237 562 1193 1185 5177 Bachelor's degree 1062 1391 1187 1732 5372 Master's... more
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03/24/22

please help with these maht statistical probabilty questions
Plays an instrument Does not play an instrument Plays a sport 5 2 Does not play a sport 4 12 In a class of students, the following data table summarizes how many students play an instrument... more
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03/24/22

please help with this math probability statistical question
Has a brother Does not have a brother Has a sister 2 3 Does not have a sister 10 7 In a class of students, the following data table summarizes how many students have a brother or a sister.... more
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Algebra

03/24/22

The difference of two numbers is 9 the sum is 11 what are the two numbers
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Algebra Probability

03/24/22

A jar contains 6 pennies, 14 nickels, 16 dimes, and 4 quarters. If one coin is chosen at random, find the probability as a percent. P(worth at least 5 cents) =

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Algebra

03/24/22

distance rate and time
Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels 12 miles per hour slower than the westbound train. If the two trains... more
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Algebra

03/24/22

if (2+x/2)^5 + (2-x/2)^5 = a + bx^2 + cx^4, then b/a + 4c = ?
just a doubt please help because i am kinda stupid and also i dont really need any description but alright i guess
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