Mathematics

For the quadratic function: f(x)=(x-5)^2-4 How to find the vertex & axis of symmetry

Does it open up or open down?-vertex would be (5,-4) axis of sym.- x=5 up-find the derivative set derivative equal to zero and find your x value. plug x value into original equation to get y. vertex

Homework help please help

im just asking if u can do this for me cause i dont understand this one part of my study guide . The formula for degrees Celsius is: C =(F − 32), where F stands for degrees Fahrenheit. Part 1: Solve

Please help: At a play 903 tickets were sold. The total receipts for the performance was $6,751.......

Child tickets cost $7 apiece, adult tickets were $9 apiece, and senior tickets were $5 apiece. If the combined number of child and adult tickets exceeded twice the number of senior tickets by 261, how

Log(x+10)-log(x+4)=logx

how do you solve this?-log(x+10)-log(x+4)=logx x(x + 4) = x + 10 x^2 + 3x - 10 = 0 (x + 5)(x - 2) = 0 x = -5 , 2 => reject -5 x = 2-Regards.Report Abuse-subtracting logs can be combined into a divisio

What is the slope of a line that passes through the points (-2, 4) and (-6, 12)

A)-2 B)-1/2 C)1/2 D)2-Slope = rise / run = (y1 - y2) / (x1 - x2) = (4 - 12) / (-2 - (-6)) = -8 / 4 = -2 The answer is A) -2.-The simplified way to answer this question is to show you this formula. y

What is the derivative of y = sqrt(x^2+2x-1) ? I think the answer key is wrong!

I am doing practice problems out of a book to prepare for the AP Calculus 1 Test. For the problem above I got: y = (x+1)/[sqrt(x^2+2x-1)] My book, however, says the answer is: y = (x+1)/y In the ans

Log7(x)+log7(x-2) = log7(24)

please help me solve this.-For example, let log7(A) = a and log7(B) = b AB = 7^a * 7^b = 7^(a+b) log7(AB) = a + b = log7(A) + log7(B) Let A = x, B = x-2, AB = 24 and youll have a quadratic equation x

Finding the angles and side lengths of a triangle

Given the measures of 2 sides and the included angle of a triangle find the measures of the other angles and the third side of the triangle. Explain how would decide which formula to use, Law of Sines

Find equations for the flow lines, <1/y, 2x>

Im wondering if someone could show me how to check this, heres my work: Use a first order differential equation to solve: dy/dx = 2x/(1/y) (1/y)(dy/dx) = 2x integrate with respect to x: ∫ (1/y)(d

What is the y-intercept of the equation 2x + 3y = 12

A)-2/3 B)4 C)6 D)12-y-intercept occurs where x = 0, so: 2(0) + 3y = 12 3y = 12 y = 12/3 y = 4 [Choice B] I hope this helps!-There are two ways to solve this.The first is by plugging zero in for x be

Managerial Calculus (Evaluate the following integrals)

Evaluate the following integrals: 1) ∫x^1/2(x-1)(x-9)dx 2) ⌠2 ⎮Inx/x dx ⌡1 3) ⌠1 ⎮x√(x^2 + 1)dx ⌡0 4) ⌠1 ⎮e^5x / e^3x dx ⌡0-1) √(x) (x - 1) (x - 9) = x^(1/2) (x² - 9x - x + 9) = x^(1/2) (x² - 10

Which graph is a better display of the number of students in a class who chose math as their favorite subject

A. bar graph B. circle C.scatered-Bar chart for number of students in a class. Circle or pie chart for percentage of students in a class.-bar or pie(if thats what you meant by circle).. definitely no

How to Factor this Simple Polynomial

Factor this: 4x^2 - 4x +4-First of all, all of these values have a common multiple of 4. Therefore, this can be factored to 4(x^2 -x+1) Working with the values in the brackets, we can realize that i

What is the area of the base of a figure if the volume is 210 ft^3 and the height is 14 ft

i need help with that problem ? thanks :) if you just want to show me how to do it its fine-15 sf... Volume = area x height area= volume/height area= 210/14 area= 15 sq ft

What is 6÷2(1+2) equal to

alot of people say 9 and alot of people say 1 . now im confused.Someone do a brief explanation-The order of operations is PEMDAS: Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.