4,322 Answered Questions for the topic College Algebra

College Algebra Math Algebra Mathematics

08/10/21

Pattern Practice, College Mathematics
X, 2X + 11 and 4X - 3 are consecutive terms of an arithmetic sequence. Find the constant difference between terms. Give a formula for finding the nth term of the sequence. Use your formula to find... more
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College Algebra

08/08/21

A rectangle is twice as long as it is wide. If it has an area of 24.5 square inches, what are its dimensions?
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College Algebra

08/06/21

Help me solve this

​Strontium-90 is a radioactive material that decays according to the function A(t)=A0e−0.0244t, where A0 is the initial amount present and A is the amount present at time t​ (in years). Assume that... more
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College Algebra Statistics

08/05/21

I am having trouble figuring out how to start the math part of this crime scene scenario
You and your team of investigative specialists have been called out to a case. You and the coroner arrive at the scene. There is a body, foot prints, and obvious signs of a struggle. Let’s look at... more
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College Algebra

08/03/21

I need help figuring this out

Evaluate the function f(x)=x^2–7x+ 5 At the given values of the independent variable and simplify.a. f(-7) b. f(x+7) c. f(–x)
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College Algebra

07/31/21

The measure of the first angle, second angle and third angle

In a triangle, the measure of the first angle is three times the measure of the second angle. The measure of the third angle is 55 degrees more than the measure of the second angle. Use the fact... more
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College Algebra Probability

07/27/21

Probabillity Question

Two people are selected at random from eleven men and ten women. Find the probability that the first is a woman and the second is a man.
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College Algebra

07/27/21

find the equilibrium point of the demand and supply equations.
Demand. supplyp=370-0.0003x. p= 167+0.0004x(x,p)=
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College Algebra

07/26/21

Probability of rolling dice

Find the probability of rolling a 2 with a pair of dice. (Round your answer to three decimal places.)
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College Algebra

07/26/21

Rewrite the given equation without logarithms. Do not solve for x. log(7x+6)=1+log(x-7)
log(7x+6)=1+log(x-7)(Do not simplify. Use integers or fractions for any numbers in the equation.)
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College Algebra

07/25/21

A ball is thrown from an initial height of 5 feet with an initial upward velocity of 36 ft/s
A ball is thrown from an initial height of 5 feet with an initial upward velocity of 36 ft/s. The ball's height h (in feet) after t seconds is given by the following. h= 5+36t-16^2.Find all values... more
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College Algebra

07/25/21

a total of $46,000 is invested into 2 municipal bonds that pay 5.75% and 7.75% simple interest. the investor wants an annual income of $3225 from the investments
a total of $46,000 is invested into 2 municipal bonds that pay 5.75% and 7.75% simple interest. the investor wants an annual income of $3225 from the investments. what amount should be invested in... more
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College Algebra

07/25/21

2 cheeseburgers and a small fries contain a total of 1340 calories. 3 cheeseburgers and 2 small fries contain 2210 calories , find the caloric count of each item
2 cheeseburgers and a small fries contain a total of 1340 calories. 3 cheeseburgers and 2 small fries contain 2210 calories , find the caloric count of each item
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College Algebra

07/22/21

The population increase of a city

the populations P (in thousands) of a certain city from 2000 through 2007 can be modeled by P=1666.9e^kt, Where t represent the year, with t= 0 corresponding to 2000. In 2006 the population of the... more
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College Algebra Calculus

07/22/21

PLEASE HELP <3 PROBABILITY

A sandwich bar allows customers to construct their own sandwiches by choosing from 3 kinds of buns, 4 kinds of condiments, 4 kinds of veggies, and 3 kinds of meats. How many different... more
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College Algebra

07/21/21

College Algebra
If the voltage V in an electrical circuit is held constant, the current 1 is inversely proportional to the resistance R. If the current is 280 milliamperes when the resistance is 3 ohms, find the... more
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College Algebra

07/20/21

Slopes of different lines
What is the slop of a line parallel to 3x-2y=6?
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College Algebra Algebra 1 Algebra

07/19/21

A rectangular garden is completely enclosed by a 120-foot fence.

A rectangular garden is completely enclosed by a 120 foot fence. If the gardens width is 4 feet less than its length, what are the gardens dimensions? (How wide is the garden, and how long is the... more
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College Algebra

07/18/21

geometric sequences
A colony of bacteria is growing at a rate of 50% per hour.If this rate of growth remains the same and the colony starts with 100 bacteria, approximately how many bacteria will there be after 6 hours?
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College Algebra

07/18/21

A patient ingests 5 grams of a certain drug which dissolves away at a constant rate of 10% per hour. How long will it take before there is only one gram left?
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College Algebra

07/18/21

If $5,500 is invested at 9% annual interest, which is compounded continuously, what is the account balance after 10 years, assuming no additional deposits or withdrawals are made?
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College Algebra

07/18/21

The sum of the first 15 terms of a geometric sequence with 7 as the first term and a common ratio of -3 is
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College Algebra

07/17/21

In 2012 the population of a city was 6.84 million the exponential growth rate was 2.85% per year
Find the exponential growth functionestimate the population of the city in 2018when will the population of the city be 9 millionfind the doubling time
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College Algebra

07/13/21

Please help, I am so confused
The population of Anytown, USA decreased from 2,435 in 1995 to 1,650 in 2005. Find the average rate of change in the population over the ten-year period, and provide the linear equation that... more
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College Algebra

07/12/21

(Determine the constant of proportionality.) v varies jointly as p and q and inversely as the square of s. (v = 3.5 when p = 4.3, q = 6.3 and s = 1.2 .)
Find a mathematical model representing the statement. (Determine the constant of proportionality.) v varies jointly as p and q and inversely as the square of s. (v = 3.5 when p = 4.3, q = 6.3 and s... more
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