05/10/23

How much money should be deposited today in an account that earns 5% compounded semiannually so that it will accumulate to $8000 in four years
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05/10/23

Given P (A) = 0.65 P(A)=0.65, P (B) = 0.42 P(B)=0.42 and P ( A∣B ) = 0.8 P(A∣B)=0.8, find the value of P ( A and P) P(A and B), rounding to the nearest thousandth, if necessary.
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05/10/23

. Wesley and Brian have a total of 87 baseball cards. Wesley has 30 less than twice as many cards as Brian. How many baseball cards do they each own?
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05/10/23

Find the standard form of the equation of the hyperbola with the given characteristics. Vertices: (±4, 0); foci: (±5, 0)
Find the standard form of the equation of the hyperbola with the given characteristics.Vertices: (±4, 0); foci: (±5, 0)
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05/10/23

Rotate the axes to eliminate the xy-term in the equation. xy − 5 = 0
Rotate the axes to eliminate the xy-term in the equation. Then write the equation in standard form. (Use xp for x' and yp for y' in your answer. Rotate the coordinate axes through an... more
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05/10/23

Help for part A and B
A. Plot the point given in polar coordinates.4, -3π/4B.Find three additional polar representations of the point, using  −2𝜋 < 𝜃 < 2𝜋. (Enter your answers in order from smallest to largest... more
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05/10/23

Optimization Question
A "cross" is inscribed in a circle of radius 9 (see diagram below). The cross is symmetric, so each outer edge (the ones in purple) has the same length, say 2x. We seek to find x so that the area... more
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05/10/23

Evaluate the expression. Express the result in scientific notation. (1.2 x 10^4)(3.2 x 10^-6)
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05/09/23

Precalculus question
At the beginning of an experiment, a scientist has 272 grams of radioactive goo. After 225 minutes, her sample has decayed to 17 grams. What is the half-life of the goo in minutes?     Find a... more
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05/09/23

solve for x. Cos (x)= 10/17
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05/09/23

given cosx=1/4, cscx<0 find cos2x then find tanx/2
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05/09/23

lester mandy and nancy have 783 stamps togethr.
lester mandy and nancy have 783 stamps togethr.lester gives 20 stamps to mandy,and 40 stamps to nancy.lester now has thrice as many stamps as mandy.mandy now has twice as many stamps as... more
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05/09/23

Dan and Greg share a 30-ounce bucket of clay. By the end of the week, Dan has used 3/10 of the bucket, and Greg has used 3/5 of the bucket of clay. How many ounces are left in the bucket?
Dan and Greg share a 30-ounce bucket of clay. By the end of the week, Dan has used 310 of the bucket, and Greg has used 35 of the bucket of clay. How many ounces are left in the bucket?
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05/09/23

Math Question About Coordinates
What are the coordinates of the point on the directed line segment from (−2,−2)(−2,−2) to (9,9)(9,9) that partitions the segment into a ratio of 5 to 6?
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05/08/23

A certain forest covers an area of 2500km squared. Suppose that each year this area decreases by 7.75%. What will the area be after 15 years? round your answer to the nearest square kilometer.
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05/08/23

Solve the equation
20 x 2 = 5 x blank x 2
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05/08/23

Probability Statistics
Among the 12 applicants for managerial positions at a chain of movie theaters, 8 are college graduates and 4 are high school graduates. If three of the applicants are randomly selected, a. Identify... more
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05/08/23

Homework and Final Exam
If I currently have a 64% in my class and I have a project that is with 10% of my grade and and final exam which is worth 15% of my grade what would I need to average if I want at-least a 70%.... more
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05/08/23

The perimeter of a rectangle is 54m.The difference between the length and the width is 3m.Find the area of the rectangle
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05/08/23

8.07 Writing Quadratic Functions

Dominique throws a softball from the outfield. After 1 second, the ball is 15 feet high. After 4 seconds, the ball reaches its maximum height of 42 feet. After 7 seconds, it returns to a height of... more
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05/08/23

Help Figure out Value C and how to do it
The amount of​ gas, G ​(in gallons) that remains in the tank of a car after it has been driven m miles, starting with a full​ tank, is given by the function G(m)=472.6−m over 34. Use this function... more
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05/08/23

pre calc question
The doubling period of a bacterial population is  20 minutes. At time t=110 minutes, the bacterial population was 70000.What was the initial population at time t=0?    Find the size of the... more
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05/08/23

Precalculus question 1
At the beginning of an experiment, a scientist has 316 grams of radioactive goo. After 195 minutes, her sample has decayed to 4.9375 grams. What is the half-life of the goo in minutes?     Find a... more
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05/08/23

Optimization Question
A cylinder-shaped can need to be constructed to hold 600 cubic centimeters of soup. The material for the sides of the can costs 0.03 cents per square centimeter. The material for the top and bottom... more
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05/08/23

Integration Involving Hyperbolic Functions
Let y be a function of x.Suppose we have, dy/dx = +/-[( (y^2)-c )/(sqrt(c))].How do we integrate this to obtain, y = (sqrt(c))*{cosh[(x+D)/(sqrt(c))]} ?
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