Mathematics

Find the vertex and line of symetry f(x) = (x+2)^2

find the vertex and line of symetry f(x) = (x + 2)^2 ? The vertex form for a parabola is: y = (x - h)^2 + k the vertex is at:(h, k) the axis of symmetry goes through the vertex... You should be

How Do You Picture Integrals

Im still having a hard time imagining how the area under a function relates to the definite integral. I can derive the fundamental formula, and know that the definite integral is to take the limit of

Which way do these parabola's open

Up, down, left, or right? Check my answers for me. :) 22) y=-3x^2 [down] 24) 2y^2=-6x [left] 26) x^2=16y [up] 28) -5x=-y^2 [right]-Which way do these parabolas open? Up, down, left, or right? Check m

Finding the area of a regular pentagon with side length=12 (please help)

Find the area of a regular pentagon with side length=12 (round to the nearest whole number) any help will be very appreciated, Thank You-Find the area of a regular pentagon with side length = 12 The

Math homework help!!

heres the question..Write an equation that represents the line that passes through the points (5,4) and(-5,0) show step by step pleaseeeee! thank youu-The equation for a straight line is: y=Mx+b wh

Find the temperature point

The temperature at a point (x, y) is T(x, y), measured in degrees Celsius. A bug crawls so that its position after t seconds is given by the following function, where x and y are measured in centimete

Help on algebraic expression

Im revising for my math exam and I just cant get how to do this question. Tara buys x rulers at 25 pence each and y biros at 70 pence each. Write down an expression for the total cost of the rulers

Question about how 8*8*8*8 = 4 Find all integers for which this statement is true, modulo n.

In the cut as from the songs in the key of Life, Stevie Wonder mentions the equation 8*8*8*8=4. Find all integers n for which this statement is true, modulo n. The answer in the back of the book read

If 2 sin x = √3 , 0 <= x <= 2π then x =

sin x = √3/2 Sine function equals √3/2 when the angle is π/3 or 2π/3 (Second quadrant: Sine is always positive). Therefore, the answer is x = π/3 and 2π/3-sin x = sqrt(3)/2 So x = 60 degrees or 120 d

How to verify this trig function

tan^2t/sect=sect-costVerify-tan^2t/sect = (sec^2t - 1)/sect = sect - cost

Trigonometry help: how do I solve these kind of problems

Exam is on Tuesday and Im a little confused with this problem. A, B, and C refer to angles. a, b, and c refer to sides. They correspond. Im supposed to find c, given A = 45 degrees, b = 10, and a

Is this the answer to the following Algebra 2 problem

1. h/2h+4 - 3/h+2 so basically its subtracting rational expression. I know we have to make the denominator equal so I multiplied h/2h+4 x h+2 and -3/h+2 x 2h+4 For the numerator I got h^2+2h- 6h-12 Fo

How would I complete this trig problem

The directions: Evaluate the following using the double angle identities: The Problem: 4cos^2(pi/8) - 2 My question: Where do I even begin? Thanks for any help.-4cos^2(Π/8) - 2 = 2 [2cos^2(Π/8)

Solve each equation by root property (10 POINTS!)

1. (7b - 4)²= 144 2. (2p + 5)²= 32 3. (y - 4)²+ 7 = 0-Not sure what you mean by root property but these equations imply: (7b-4)^2=144-> 7b-4=+12 or 7b-4=-12-> b=16/7 or b=-8/7. (2p+5)^2=32-> 2p+5=

Give the coordinates of the x=intercept for the graph of each equation

1. y = -x² + 2x + 4-To find x-intercept, set y to 0 y = -x² + 2x + 4 0 = -x² + 2x + 4 Then factor 0 = (-1)(x² - 2x - 4) Now we have to use the quadratic equation a= 1 b= -2 c= -4 x= 3.23, and -1.23 X