59,618 Answered Questions for the topic Math

11/04/23

AMC 10, Base That Makes a Difference Indivisible by Three
Which integer value of b makes it so that when you subtract the base-bb number 221b ​ from 2021b​, the result isn't a multiple of 3? The choices are:(A) 3 (B) 4 (C) 6 (D) 7 (E) 8
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Math Algebra 2

11/04/23

Help with a Tricky Number Problem for AMC10 Prep
I need to find two whole numbers that together add up to 17,402. One of these numbers is a multiple of 10, and if you take away the last digit (which is a zero), you get the other number. I've... more
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11/04/23

According to the Jukes-Cantor model, given a proportion p of sites with different nucleotide sequences, the expected number of evolutionary changes between the two sequences is
According to the Jukes-Cantor model, given a proportion p of sites with different nucleotide sequences, the expected number of evolutionary changes between the two sequences is ... more
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11/04/23

Find the solutions of the equation in the interval [−2𝜋, 2𝜋]. Use a graphing utility to verify your results. (Enter your answers as a comma-separated list.) tan(x) = −1
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11/04/23

A sine curve with a period of 8𝜋, an amplitude of 5, a left phase shift of 𝜋/4, and a vertical translation down 4 units.
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Math

11/04/23

profit made on the apples sold
I pay $8 for 5 apples. I then sell them at 3 for $10. I bought p apples last week and sold all of them making a profit of $78. find p
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Math

11/04/23

At the beginning of an experiment, a scientist has 344 grams of radioactive goo. After 60 minutes, her sample has decayed to 43 grams. What is the half-life of the goo in minutes?

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Math

11/04/23

Ellie can make 6 friendship bracelets each day and she has already made 400 bracelets. How many days are left until she makes 860 bracelets?
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Math

11/04/23

Q2 Mechanics - Rational Functions
Determine the equation of the rational function with the following characteristics:Vertical asymptotes at x=−1and x=2x-intercept at (−2,0)horizontal asymptote of y=2goes through the... more
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11/03/23

Determine the observed rotation angle (α) (for part A). Determine the observed rotation angle (α) (for part B).
Part A: The specific rotation ([α]) of Unknown molecule (name is censored on this website but is not relevant for answering the question) in chloroform solvent is -16.3 degrees. determine the... more
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Math

11/03/23

I need help on math

The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 46 ounces and a standard deviation of 5 ounces.Use the Standard Deviation... more
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Math

11/03/23

Translating a sentence into a multi-step equation PLEASE HELP ASAP
Nine times the sum of a number and 3 equals 2.
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Math

11/03/23

Translating a sentence into a multi-step equation

Three less than the product of 4 and a number is equal to 9.
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Math

11/03/23

When 2,000 pounds of paper are recycled or reused, 17 trees are saved. How many trees are saved if 5,000 pounds of paper is recycled?

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11/03/23

Parametric Equations: Maximum

Find the time it takes for a ball following the path of the parametric equations, x = 4t - 8 and y = -t^2 + 18t, to reach a maximum
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11/03/23

Parametric Equations: Time Pt. 1
Find the time it takes for a rocket following the path of the parametric equations, x = 4t - 8 and y = -2t^2 + 18, to hit the ground
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Math

11/03/23

Suppose that y varies directly as x. If y = 35 when x = 5, find the constant of variation k.
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Math

11/03/23

I need help answering this question immediately from ALEKS:

Consider the line y = -7x + 7. Find the equation of the line that is parallel to this line and passes through the point (5, 4) . Find the equation of the line that is perpendicular to this line... more
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11/03/23

A bicycle with 24-inch diameter wheels is traveling at 20 mi/h. Find the angular speed of the wheels in radians per minute.

A bicycle with 24-inch diameter wheels is traveling at 20 mi/h. Find the angular speed of the wheels in radians per minute. How many revolutions per minute do the wheels make?
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11/03/23

Explain the differences between linear speed and angular speed when describing motion along a circular path. (Select all that apply.)
Linear speed is the distance traveled over time. Linear speed is always greater than angular speed. Linear speed can be measured in miles per hour. Linear speed can be measured in degrees. Angular... more
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Math

11/03/23

i need help ASP
Aj has doube the amount of video games that mike has. Joe has 2 more then twice the amount of video games that mike has together they have 57 video games. How many video games do they each have?... more
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11/03/23

There is lightning rod on the top of a building. From a location 650 feet from the base of the building, the angle of elevation to the top of the building is measured to be 40°.
There is lightning rod on the top of a building. From a location 650 feet from the base of the building, the angle of elevation to the top of the building is measured to be 40°. From the same... more
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11/03/23

Find all real solutions.
Find all real solutions to the equation log4(3x^2) - log4(4x+8) = -1Be sure to check any potential solutions in the original equation.
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11/03/23

Half-life of approx. 3.45 years.
Show that a radioactive substance which exponentially decays to 20% of its initial value after 8 years has a half-life of approximately 3.45 years. Recall that the half-life is the length in time... more
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Math

11/02/23

How much money was spent for t shirts.
At a concert, you purchase 7 T-shirts and a program for a total cost of $93. The program costs $9 and the T-shirts all cost the same amount. Find the cost of one T-shirt
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