12/20/20

Find any points of intersections of the graphs of the equations algebraically and then verify using a graphing utility. x^2 − y^2 −14x +10y − 25 =0 x^2 + y^2−14x−10y + 25= 0
Specifically, please be sure to display the smaller and larger x-value between the two equations.
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12/20/20

Write the complex coordinate in rectangular form 8(cos180+isin180)
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12/19/20

The pressure P (in millimeters of mercury) against the walls of the blood vessels of a person is modeled by
P = 100-20 cos (8πt / 3)where t is the time (in seconds). Use a graphing utility to graph the model. Top left = aTop right = bBottom left = cBottom right = dOne cycle is equivalent to one... more
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12/19/20

Sketch the graph of the function. Use a graphing utility to verify your sketch. (Include two full periods.)
y = 3/7 cos (x) Top left = aTop right = bBottom left = cBottom right = d
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12/19/20

Power reducing formulas
Rewrite the function using the power-reducing formulas. f(x) = 3 sin^3(x)
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12/19/20

Find the slope of the line from the values in the tables. Explain your steps
X Y_______________5 167 2210 3115 46
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12/19/20

application of solving system of equations
200 tickets were sold in a school's annual musical performance. students' tickets cost $2.50 each and parents' tickets cost $3.50 each. the total amount collected was $537. how many tickets were... more
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12/18/20

I need help with Precalculus

A new car is purchased for 18000 dollars. The value of the car depreciates at 7% per year. To the nearest tenth of a year, how long will it be until the value of the car is 8500 dollars?
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12/18/20

a parabola can be drawn given a focus of (3,-7) and a directrix of y = -11. write the equation of the parabola in any form
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12/18/20

determine the value of s25 for the series 5+1-3-7

determine the value of s25 for the series 5+1-3-7
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12/18/20

High School Algebra

You want to burn 400 calories exercising at the gym. The elliptical trainer burns 10 calories per minute, while the treadmill burns 8 calories per minute. Determine the intercepts for each of the... more
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12/18/20

Determine the nth term rule and find the 45th term for the arithmetic sequence with a10=1 and d=−6.
I have tried everything I can possibly think of. I have taken this quiz four times now. I am desperate.Here's what I have come up with previously if it is any help, or if you can tell me where I... more
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12/18/20

Solve the problem: 3x+2y= 6

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12/18/20

How many of each coin does she have?
Alice has a total of 29 coins composed of only nickels, dimes and quarters. She is one more nickel than the sum of the number of the other two coins. if the total value of the coins is $3.35, how... more
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12/18/20

How do you solve for X for the equation (2 cos x-square root 3)(2 sin x - 1) = 0?
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12/18/20

solve for the function
f(x)=2/3x−7f(-9)=
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12/18/20

Use sigma notation to write the sum.
(2/4(1)) + (2/4(2)) + (2/4(3)) + ... (2/4(21)) =
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12/18/20

A number was multiplied by 4. Then this product was decreased by 7. If the result was 29, what was the number?
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12/18/20

Prove by mathematical induction that 1/1x2 + 1/2x3 + 1/3x4 + ... 1/n(n+1) = n/n+1
step by step answers please
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12/18/20

refer to the equation f(x)= −2cos (x+π)+1
Amplitude Period Horizontal Shift Vertical Shift
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12/17/20

Is a square prism a semiregular polyhedron? The square prism has 2 square faces and 4 rectangular faces.
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12/17/20

A ladder is leaning against the side of a building and formed an angle of 64⁰ with the ground.
What is the radian measure of this angle as a multiple of pi?
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12/17/20

Writing algebraic expression

Four times the sum of a number and eight is one
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12/17/20

Geometry (please help)
If  has vertices with the coordinates D(9,-3), E(-6,3), and F(3,6), what are the vertices of  under a dilation with a scale factor of  and the center at the origin (0,0)?
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12/17/20

Geometry (please help)
Write the equation in general form.(x+4)2 + (y - 2)2 = 34
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