12/05/19

prove that 1/3 is less than or equal to the integral of 1/x dx on [4,6] and prove that this integral is smaller than or equal to 1/2
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12/05/19

Newton’s law of cooling says that the rate at which a body cools is proportional to the difference C in temperature between the body and the environment around it
The temperature f(t) of the body at time t in hours after being introduced to an environment having constant temperature T0 is f(t)=T0+Ce-kt where C and k are constants.A cup of coffee with... more
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12/05/19

Determine the value of k such that x+2 is a factor of p(x)= x^4-3x^3+kx^2-x+6
someone pls help me 😢 I have to finish my thanksgiving packet LMAO
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12/04/19

What’s the cost of each ticket?
A school is selling tickets to a choral performance. On the first day of ticket sales the school sold 3 senior citizen tickets and 1 adult ticket for a total of $38. The second day the school... more
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12/04/19

In geometric sequence tn, find S15 if t3=8 , t5=32 and t8 < 0.

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12/04/19

precalculus matrix
Solve for u, x, y, and z in the given matrix equation. x −9 2 y  +  −6 z 6 6  =  2 −9 2u 8
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12/04/19

Rate of Change in Natural & Social Sciences
A particle moves along a straight line and its position at time t is given by s(t)=t3-9t2+15t where s is measured in feet and t in seconds. Consider t in the interval [0,infinity). when is the... more
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12/04/19

4. Use Simpson’s Rule with n = 10 to approximate the value of

4. Use Simpson’s Rule with n = 10 to approximate the value of ln(5/4) using the integral
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12/03/19

precalculus matrices
Given that the augmented matrix in row-reduced form is equivalent to the augmented matrix of a system of linear equations, do the following. (Use x1, x2, x3, and x4, as your variables, each... more
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12/03/19

which of the following could be the equation for a parabola that opens down with vertex (-11 -28)
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12/03/19

find the length of the arc
Find the length of the arc subtended by a central angle 210° on a circle of radius 6 cm.
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12/02/19

A man has a solution that is 35% iodine and 65% water, and another that is 15% iodine.
A man has a solution that is 35% iodine and 65% water, and another that is 15% iodine. How many gallons of the 15% solution should he combine with the first solution to get 2500 gallons of a 20%... more
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12/02/19

−11+20i+18x=8−15i+15yi
find the x and y value
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12/01/19

What is the solution?

9x^2-25x-6=0 what is the solution to this?
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12/01/19

Which of the values satisfy the following inequality |x-7.5|≤ 17 Multiple choices A: x= 20 B: x= -10 C: x= -9 D: x= 27
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12/01/19

Interval question
Determine the intervals on which the given function is concave up or down. Identify the inflection points.f(x)=x4-24x2+1
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12/01/19

Trig help please!!
Two sides and an angle are given below. Determine whether the given information results in one​ triangle, two​ triangles, or no triangle at all. Solve any​ triangle(s) that results.a=8 c=3 and... more
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12/01/19

Trig question Please help!
Two sides and an angle are given below. Determine whether the given information results in one​ triangle, two​ triangles, or no triangle at all. Solve any​ triangle(s) that results. b=8 c=9 and... more
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12/01/19

Calculus word plane problem
Two planes approach an air traffic control tower. One is flying due east at 650 mi/hr and the other is flying due south at 580 mi/hr. Assuming that they fly at the same constant elevation, how fast... more
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12/01/19

How is sin-1(-1/2)=-pi/6 ?? Be more specific with answer please
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12/01/19

Absolute Extrema
Find the absolute extrema of f(x) = x^2/3 (3-x) on [-2, 2]
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11/29/19

Find an equation of the vertical line through (5,2)
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11/29/19

Trig - Converting rectangular equation to polar

(x-1)^2+(y+1)^2=2 to polar Pls help
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11/29/19

1. If a + b = 5 and ab = 3, compute the value of a^3 + b^3 2. Solve for all values of x: (x-3)^2 -5(x-3)+6=0
Can u plz help me do these questions
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11/29/19

Intimate geometric and recursive
1.)Comparing explicit and recursive rules. a. Write an explicit rule and recursive rule for the sequence of numbers 3, 8, 13, 18, 23,… b. Find the 1,000th term of the sequence. c. Which rule did... more
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