# Pre- Calculus

21,880 results, page 26

1. ### Pre-Algebra

13 - t = -t + 7 (13 - t) - 13 = (-t +7) -13 -t = -t - 6 -t + t = (-t - 6) + t 0 = -6 This makes no sense to me.. What is the answer to the problem 13 - t = -t + 7
2. ### Pre Calc

Solve the non-linear inequality: x^3-5x^2-14x<0
3. ### Pre-Calc

Prove: 2 - sec^x / 1+ tan ^x = cos 2x
4. ### Math(pre-calc)

what are all the real zeros for 1x^5+2x^4+4x^3+19x^2+9x-5?
5. ### pre cal

what are the real and imaginary zeros of the equation 2x^3 + 5x^2 - 3x + 7
6. ### Pre Calc

Can someone help me understand how to do this: I need to find two solutions to the problem (x-2)^2 + (y+3)^2 = 9
7. ### pre cal

Choose the point on the terminal side of -45°
8. ### Pre-Calc/Trig

is the integer n odd or even, explain
9. ### pre calc

cos2x=cosx in interval of [0,2pie]
10. ### pre algebra

12. State whether the number 97 is prime, composite, or neither.
11. ### pre-calc

cos x+sec x=2 if you could please show all work
12. ### Pre-algebra

What is the answer to negative 4 to the fourth power?
13. ### High School, Pre Algebra

-1 3/7* (-3 2/3) A. 3 2/7 B. -5 5/21 C. 11 D. 5 5/21 I got A , but then I tried figuring it out again and I think the denominator is 21
14. ### pre-cal

solve for all values in [0,2pie) 2sin^2x-1=0

16. ### pre algebra

32yd/min equal how many in/sec
17. ### Pre-algebra

Find the equation of a line that contains (-2, -2) and is perpendicular to y= -x+3
18. ### Pre-Algebra

What is the formula to find the area of a circle? May I have an example?
19. ### Pre Calc

x^2+y^2=625 Verify that (-24,7) lies on the circle.
20. ### pre-calc

How do you solve this inequality? 2x over 4 minus 5x+1 over 3 is greater than 3
21. ### Pre-Algebra

Find the mean of the following data set: 25, 30, 20, 20, 25, 35, 35, 10 15 20 25 30 15 IS MY ANSWER
22. ### Social Studies

How democratic was the pre-war South?
23. ### Pre-Chemistry

What is the chemical name thing for salt? Anyone? Bueller?
24. ### pre alg

25a^-2 b^-5 c^8 / 40 a^5 c^9--this problem i come up with 5/8a7b5c..is this correct?
25. ### Social Studies

How democratic was the pre-war South?
26. ### Pre ALGEBRA

what are the next three terms in the sequence -6, 5, 16, 27? A)38,49,60 B)37,47,57 C)36,45,54 D)36,46,57 i think its a Am i right Somebody help me please DAMON,MS.SUE, SOMEBODY PLEASE HELP ME
27. ### math-pre al

what are lateral faces on a square pyramids?
28. ### pre-algebra

If a and b are any real numbers, is the statement a x b = b x a always true? Why or why not?
29. ### pre alg

if the slope of a line is 8/4, do we simplify it to 2? or does it stay at 8/4?
30. ### pre-calc

We use the same polynomials as in the first question. Suppose that 3x^3 + 2x + 1 = (ax^2 + bx + c)(x+2) + d. Then b is equal to:
31. ### PRE-ALGEBRA

Solve the equation. 3x + 7x =120 It will help if you explain it too. Thanks!
32. ### Pre-College Algebra

multiply the polynomial (x-1)(2x squared - x- 3)
33. ### Pre Algebra

What is the unit rate if the question is \$3.29 for 12 cans?
34. ### pre alg.

26 centimenters per sec. = _ meters per min.

36. ### Pre-calc

how many solutions are there to csc^2x=25 (0≤x<2π)

38. ### pre calc

theta=sin^-1 (5/13) ; (x,y)=(-3,1) how do u find the coordinates of x' and y'??
39. ### Pre-Algebra

what is the equation in slope-intercept form of 7x+2y=10
40. ### Pre Algebra

9+5k=45+2k I don't even know where to begin with this. Can someone give me some direction please.
41. ### Pre Calc

Solve the non-linear inequality: x^3-5x^2-14x<0
42. ### Math

Hi, I have to do a project on the Shell Method in my Geometry class. I have been trying to find information on that topic, but have no luck... can someone point me to the right direction as of what keyword to search for, or is there any sites or books or video that have such ...
43. ### Pre-Calculus

The monthly revenue acheived by selling x boxes of candy is calculated to be x(5-0.05x)dollars. The wholesale cost of each box of candy is \$1.50. How many boxes must be sold each month to achieve a profit of at least \$60. Can someone please let me know how to set up this ...
44. ### math: pre-calculus

List the transformations that will change the graph of g(x)=lnx into the graph of the given function h(x)=log(x+3)-8 a) Horizontally shift the graph to the right by 3; then vertically shift downward by 8. b) Horizontally shift the graph to the left by 8; then vertically shift ...
45. ### Pre-Calculus

Hello! Can someone check and see if these answers are correct? Thanks! 1.) If a line with slope of 1/2 is perpendicular to another line, then the slope of the other line is -2. TRUE or FALSE? (I choose True) 2.) If Segment QR || Segment TU and the slope of Segment TU is -3, ...
46. ### pre-calculus

A.) A Ferris wheel has a radius of 32 feet and completes one revolution every 5.4 minutes. What is the speed of the Ferris wheel (in radians per minute)? _______radians per minute B.) A Ferris wheel has a radius of 39 feet and travels 5.6 feet every second. What is the speed ...
47. ### calculus

Find any relative extrema and any points of inflection if they exist of f(x)=x^2+ ln x^2 showing calculus. Please show work in detail so I can follow. Thanks. The answer is no relative max or min and the points of inflection are (1,1) and (-1,1) but I'm having trouble getting ...
48. ### Pre-Calculus

A drug is administered every 6 hours. The kidneys eliminate 55% of the drug over that period. The initial dose is 210 mg. Repeated dosage is 70 mg What is the “Difference equation”? Find the first seven terms of the of the solution sequence. Round to two digits each ...
49. ### Pre-Calculus

A drug is administered every 6 hours. The kidneys eliminate 55% of the drug over that period. The initial dose is 210 mg. Repeated dosage is 70 mg What is the “Difference equation”? Find the first seven terms of the of the solution sequence. Round to two digits each ...
50. ### Calculus 2

Calculus work problem. John bought the following corner lot. Two sides are bounded by 2 roads the back is bounded by a stream that follows the curve y = -x^3 + 8. He wants to build a house in the center of the lot. Where will that be? Please show all work
51. ### AP Calculus

HELP! I'm in calculus class and they keep talking about Taylor series. I don't understand what's going on. Please explain what is Taylor series and what is Mclaurin series and how they are similar and how they are different.
52. ### Pre-Calculus Help? Vectors?

How does multiplying a vector by a scalar value of -pi/4 change the vector? A.) The vector will change direction and increase in magnitude. B.) The vector will change direction and decrease in magnitude. C.) The vector will not change direction but will increase in magnitude. ...
53. ### Math (Pre-calculus)

An artist is creating a mosaic that cannot be larger than the space allotted which is 4 feet tall and 6 feet wide. The mosaic must be at least 3 feet tall and 5 feet wide. The tiles in the mosaic have words written on them and the artist ants the words to all be horizontal in ...
54. ### Pre algebra

what is the difference between an irrational number and a integer? PLZ HELP ME!!!
55. ### Pre-calc

Solve these equations for x by factoring: 1) x(x-4)=12 2) 2x^3+50x=20x^2 3) 2x^2+x-6=0 Thank you for all your help!!!!
56. ### pre cal

This is like the preceding problem, except that your answers may be negative x^2+7/3x+ =(x+ )^2. x^2−5/7x+ =(x+ )^2. x^2+2/3x+ =(x+ )^2.
57. ### pre calc

find the equation of the left half of the parabola: (x+5)^2=4y+2
58. ### pre-cal

Find Zeros: F(x)=12x^3-107x^2-15x+24?
59. ### pre calc

show that the statements are true for all natural numbers 1^3 +2^3 +5^3+....+(2n+3)^3 =n^2(2n^2 -1)
60. ### Pre-Algebra

Explain how to model the multiplication of –6 and 3 on a number line.

62. ### Math/pre algebra

What are the answers to why is a hill like a lazy dog?
63. ### Pre-Algebra B

5 | 4,5,5,6,6,6,7,8,8,9 6 | 0,0,1,1,2,2,2,3,4,4,4,5,6,7 7 | 0,1,1,1 How do you find the mean of this stem-and-leaf plot? Please answer!!
64. ### pre algebra

solve equation.. i continually keep getting this problem wrong x/3=x/5-2
65. ### Pre-Algebra

Associative property I think. 2. (2.25 • 23) • 4 2.25x23=51.75 4x51.75=207
66. ### Pre-Algebra with PIZZAZZ

First, what is the code for What should you say when you meet an angel? Second, what are the answers to it for 9-14?
67. ### pre cal

what are the amplitude and period of the sinusoid y=6cosx+7sinx?
68. ### Pre Calc

My question is I^793 I think the answer is just I because it is the only number that can go into it. Is that correct?
69. ### Pre-Algebra

Find any numbers for which each rational expressionis undefined. 9y^5+y^3/9
70. ### Pre algebra

Find the constant of variation if y varies directly as x, and y=17 when x=34
71. ### Pre-cal

Given that P=(-1,8) and Q=(-2,1), find the component form and magnitude of the vector 3 PQ.
72. ### Pre-Algebra

Which equation models the linear relationship in the table below? x y -4 10 1 -5 6 -20
73. ### pre algebra

i am having trouble understanding how to do this math problem 4/3x=160
74. ### pre- algebra

Write a rule for the linear function in the table. x f(x) 1 3 2 2 3 1 4 0 A. f(x) = 4x B. f(x) = x – 4 C. f(x) = x + 4 D. f(x) = 4 – x
75. ### pre-algebra

describe a situation in which you would use a percent greater than 100%
76. ### Pre algebra

Find the constant of variation when y varies inversely as x, and y=8 when x=5
77. ### Pre-cal

How do I find the reference angle in radicals given the value of cosecant 5 pi/6?
78. ### pre-calcus

In the following function determine the domain, range, and asymptotes. f(x)= 5*(1/3)^x
79. ### Pre-Algebra, How do i do this?

How do you find the surface area of the rectangular prism?
80. ### Math Pre.Alg

What is \$33,800 at 3.5% compounded semiannually for 5 years?
81. ### Math (Pre-Cal)

The infinite series S = 1/5 + 3/5^3 + 5/5^5 + 7/5^7 + 9/5^9 + ... converges. Find S.
82. ### pre-algebra

how do you multiply and divide inequalities and work the problem out???
83. ### Honors pre algebra

What is the mixed number form of 4.1 with a repeating 66?
84. ### Pre-Algebra

What association would you expect if graphing height and weight?
85. ### pre cal

The equation 2^2x−5×2^x+6=0 has two solutions. The smaller is ? and the larger is ?.
86. ### pre-algebra

determine which numbers in each set are solutions to the corresponding equations. 3n=45; {15, 30, 45}
87. ### Math Pre.Alg

What is \$33,800 at 3.5% compounded semiannually for 5 years?
88. ### pre-ap physics

how do i find the vertical and horizontal components of velocity?
89. ### pre-ap physics

how do i find the vertical and horizontal components of velocity?
90. ### Pre cal

3Square root of 2 cosine theta equals -1
91. ### pre calc

2x^2+4x-5 Rewrite quadratic function in standard form.
92. ### Pre-calc/Trig...

which of the following are quadratic functions? check all that apply 1. y=2x^2-3x+7 2. y=3x-4 3. y=(5x-3x^2)/4+1 4. y=x-x^3
93. ### pre-calc

find the inverse of the function f(x) = x^2 − 6x, x ≥ 3
94. ### Pre-Calc

Determine the solution. x^2=|x|algebraically I have no idea how to proceed with this. Can you please help?

96. ### Pre-Calc

Can someone show me how to do this please. I am stuck. find a number x such that e^2x – 12e^x =13
97. ### Pre-Cal

what are the angles on the unit circle for the function tan x = -1?
98. ### pre cal

f(x)= log2 (x-1).The vertical asymptote of the function f(x) has equation:?
99. ### Physics

During the pre-industrial era, what were the Carbon Dioxide levels like?
100. ### pre-algebra

if the scale is 3 in. = 50 mi. what is the actual distance if the line segment was 6 in.