# Pre- Calculus

21,824 results, page 21

cos 75 deg
2. ### Pre-Calc Help!!!!!!!!

cos(2tan^-1(15/8))
3. ### Pre-calc

Focus of the ellipse 9x^2+2y^2=36
4. ### Pre-algebra

Suppose y=2x-2.5. Find x if y=10
5. ### pre cal

7tan^2(pheta)-2=3
6. ### Pre algebra

X cubed-3xsquared-2x+15
7. ### Pre-algebra

I am dealing with integers so, |-18|-|-8|???
8. ### Pre algebra math

How do I do 21 - y, explain
9. ### pre algebra

what is the value of the expression? 15-6/3.2+7-1
10. ### pre calc

3x + 2iy =6 + 10i
11. ### Pre-calc

Solve 3.3= 1.005^n
12. ### pre-cal

f(x)=((6xy^3)^1/2)((30x^4y^6)^1/2)/(5x^-7y^4)^1/2
13. ### Pre-Algebra

the sum of a number and 14.5
14. ### pre algebra

i need to know what is 8(-8)=? thnxs

16. ### Pre Cal

f(x) = log3(93 x + 3 815 x + 3)
17. ### pre-cal

find the intercepts of y=2x-4
18. ### Math

What is the "pre-image" of a function?
19. ### pre- algebra 1

Solve the inequality. 42<-6d
20. ### pre algebra

solve the equation 78= -2(m+3)+ m
21. ### pre-algebra

what is 7 divide 98 into
22. ### Pre-Cal.

f(x)=x^3-3x^2+x-12 =x^2(x-3)+4(x-3) =x^2+4) (x-3) so if f(x) = 0 at x = 3,+/- 2i. what is the f(x) factored form
23. ### pre algebra

hi i need some help
24. ### pre-algebra

evaluate V if V=5and w=4

26. ### Pre-Algebra

c-5/4=3 Please explain. I don't get it!

17x-22x=1/2

Sinx=0
29. ### Pre-Calc

How do I solve this equation? 4^x * (1/2)^3-2x = 8*(2^x)^2
30. ### Pre-Calc

Eliminate the parameter x = t^2 - 1 and y = t^2 + t
31. ### Pre calc

y=5tan1/2(x+pi/4) What is the period?
32. ### Pre-calc

2x^2 - 12x - 3y^2 - 24y +60 = 0
33. ### pre algebra

find the solution y = 4x and y + x = 5
34. ### pre algebra

find the solution y = 2x - 1 and y = x +3
35. ### Pre-Calc

Help please Find f(2) and f(a+h) when f(x)=3x^2+2x+4
36. ### Pre-Calc

help please For f(x)=3x+1 and g(x)=x^2-6 find (f-g)(x) A. x^2-3x-7 B. 7+3x-x^2 C. 3x^2-17 D. -x^2+3x-5
37. ### Pre-Calc/Trig...

what is In e^4.3 equivalent to? How?
38. ### Pre-calc/trig

5=log3(x^2+18)
39. ### pre-algebra

3x + 4=19 x=5 -32=24-2f f=16 Please check.Thank you.
40. ### pre-algebra

3m-4=14 m=6 11=2y-15 y=13 Please check Thank you.
41. ### pre-algebra

4/5x + 5 < -3 A. x < –10 B. x ≤ 0 C. x > 5 D. x ≥ –10
42. ### pre algebra

what is the absolute value of -/-16/ thank you.
43. ### Pre-algebra

Is 7/8 an irrational number
44. ### pre algebra

is 0.75 a rational numbre?
45. ### pre algebra

o.12 my answer is x=3/25 an i correct?
46. ### pre algebra

1/4 my answer is 0.25 am i correct?
47. ### Math Pre Algebra

evaluate 5(14-2^3)+ 8/2 =
48. ### MATH PRE ALGEBRA

Estimate 14.16÷6.82
49. ### Pre Calc

Solve 0=e^3x-9e^2x+20e^x

51. ### Pre Algebra

(√a)^2 How do I solve this? THank you!!!
52. ### Pre Algebra

how do you find the slope?
53. ### Pre-Algegra

5(x - 1) + -3x + 6 =9 check plz x = 4??
54. ### Pre alg

Simplify: 3x^2+6-2x+5x-4x^2+9 A.-x^2+3x+15 B.7x^2+3x+3 C.x^2-3x+15 D.-x^2+7x+15 I think it's D.
55. ### Pre-Algebra

Solve the inequality. y/-6 > 10 A. y < –16 B. y > –60 C. y > 4 D. y < –60 D?

57. ### pre caluclus

Vertex (3,2) focus(-3,2)
58. ### Pre algebra

2st^2-s^2= S=4 T=8 2032?
59. ### pre-calc

|2x+1| greater than or equal to |x-3|
60. ### Pre-algebra

What is -18 i rational form?
61. ### pre algebra

2.5x10^-5 equals what?
62. ### Pre Calc

Evaluate the quantity. 4 · P(4, 4) · C(9, 5)
63. ### Pre-Cal

What is the domain of f/g, given f(x)= x+2 and g(x)= x-7?
64. ### Pre cal

-3x^4+27x^2+1200=0
65. ### Pre-Algebra

Which expression is equivalent to 44 ⋅ 4−9? 4^13 4^5 1/4^13 1/4^5

67. ### English

Identify the correct sentence. A. In order to assess you're level of improvement in the course, you need to take both the pre-test and the post-test. B. In order to assess your level of improvement in the course, you need to take both the pre-test and the post-test. C. In ...
68. ### Pre-Calculus

Venus orbits the sun in an approximately circular path. Venus is about 67 million miles from the sun. A comet is located 80 million miles north and 73 million miles west of the sun. The comet follows a straight-line path and exits Venus's orbit at the east most edge. a. Find ...

A farm supply store carries 50-lb bags of both grain pellets and grain mash for pig feed. It can store 600 bags of pig feed. At least twice as many of its customers prefer the mash to the pellets. The store buys the pellets for \$3.75 per bag and sells them for \$6.00. It buys ...

A farm supply store carries 50-lb bags of both grain pellets and grain mash for pig feed. It can store 600 bags of pig feed. At least twice as many of its customers prefer the mash to the pellets. The store buys the pellets for \$3.75 per bag and sells them for \$6.00. It buys ...

A farm supply store carries 50-lb bags of both grain pellets and grain mash for pig feed. It can store 600 bags of pig feed. At least twice as many of its customers prefer the mash to the pellets. The store buys the pellets for \$3.75 per bag and sells them for \$6.00. It buys ...
72. ### To Reiny

Reiny could you please check my Calculus post below, it says Calculus--Reiny.
73. ### Differential Calculus

Given that p=(2q^2-5)^2. when q=3, it is increased by 0.7%. find the appropriate percentage in p. solution dp = 2(2q^2-5) (2dq) dp = (4x(18-5)(0.7%) dp = 4(13)(0.7%) am lost from here is dp=52x0.7/100= 0.364% Responses Differential Calculus - bobpursley, Friday, August 14, ...
74. ### Calculus I

Section The fundamental Theorem of Calculus: Use Part I of the fundamental Theorem to compute each integral exactly. 4 | 4 / 1 + x^2 dx 0
75. ### 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. ...
76. ### To Ms.Sue And All Teachers

I am new in this website. Please help me with my math homework. How do you subtract fractions? How do you subtract 7 and 2/5 AND 4 and 5/10? (7 and 2/5 - 4 and 5/10) How do you subtract 6/10 and 6/20? Thank you! Please visit the following site for a super good tutorial: http...
77. ### Calculus

Two cruise ships leave the same point outside St. John’s harbor at noon. Ship A travels west at 20 km/hr, while Ship B travels south at 25 km/hr. Using calculus, determine how fast they are separating from each other at 2:00 p.m.
78. ### Pre-Calculus

On a campus of 9000 students, a single student returned to campus with a case of measles on Monday January 5th. The infirmary is keeping track of the number of students who have been diagnosed with the disease Day # of students infected 1. 2 2. 5 3. 9 4. 28 5. 64 6. 81 7. 320 ...
79. ### 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.
80. ### Pre-Calculus

A drawbridge is l = 110 feet long when stretched across a river. As shown in the figure below, the two sections of the bridge can be rotated upward through an angle of α = 34°. a)If the water level is 35 feet below the closed bridge, find the distance d between the end ...
81. ### PRE-CAL

SIMPLIFY 55/SQUARE ROOT OF 20 -3
82. ### PRE-ALGEBRA

SOLVE EACH FORMULA. F=5GH FOR H
83. ### philosophy

what is the pre columbian philosophical perspective?
84. ### pre-algebra

What is the prime factorization of 24asquaredb?
85. ### Pre Algebra

How do you find the radius of a circle?
86. ### Pre Algebra

How can I find the area of a square?
87. ### Pre-algebra

How do you find the slope of a hypotenuse?
88. ### pre algebra

the number of months in y years
89. ### Pre Calc

simplify the expression x-4 when x is less than 4
90. ### PRE CALC

The x-intercept of the graph of f(x) = sqrt(x - 1) - 2 is (5, 0)
91. ### pre-algebra

the gcf of : 40ccd,42c
92. ### pre cal

solve for x: x^(2/3)=(1/27) (2^(x)+4)/(2^x)=2 explain please
93. ### Pre- Algebra

What does the prefix centi- mean???
94. ### Pre-algebra

how do you change interst to percents?
95. ### Pre-Cal.

Describe the end behavior of f(x)=2x^4-5x+1: A. x-->‡, f(x)-->‡; x-->-‡, f(x)-->-‡ B. x-->‡, f(x)-->‡; x-->-‡, f(x)-->‡ C. x-->‡, f(x)-->-‡; x-->-‡, f(x)-->‡ D. x-->‡, f(x)-->-‡; ...
96. ### 9th Pre Algebra

I need help with exponents -n6 for n=2
97. ### 9th grade Pre Algebra

y3-2y2- + 3y-4 for y+5
98. ### pre calc asap

what is the domain and range of f(x) =x^2
99. ### pre calc

Find a linear factorization of: f(x) = x^3 + 5x - 6. thanks.
100. ### pre calc

what quadrants does the point 2,4 and 0, 3 belong in