Mathematics

Finding points of intersection of two curves.

Hey there, ive got two curves: f(x) = (1/2)x^2 + 2 g(x) = 8 - x^4 I know I need to make g(x) = f(x), but its not working out.Just wondering if theres something im missing. -Thanks-Setting f(x) = g(x

Algebra 2 Help please :)

Can anyone help? solve for X. state any restrictions on the variables; a(bx+2)=cx-12-a(bx + 2) = cx - 12 abx + 2a = cx - 12 abx = cx - 2a - 12 abx - cx = -2a - 12 x(ab - c) = -2a - 12 x = (-2a - 12)/

How do you find the sin and cos of -9pi/2

sin and cos of -9pi/2 and sin of -5pi/2 3pi/2 The answers are -1 and 0 -1 -1 how did they get these answers please help?!-On the unit circle, -pi/2 is the angle 90 degrees clockwise from 0. So, m

Please I need help to this problem!

A financial officer is splitting P500,000 between two bonds,one paying 6% interest and the other paying 8% interest(this bond carries more risk).A minimum of P36,500 of interest payments per year is r

FIND THE VOLUME OF THE BOX IN TERM OF X ONLY

An open rectagular -based box has a lenght of 2x cm, width x cm and height (300-x^2)/3x FIND THE VOLUME OF THE BOX IN TERM OF X ONLY AND USED CALCULUS TO FIND THE VALUE OF X SO THAT THE VOLUME OF THE

Some Help with Math, thank you!

2OVERx+4OVER3=-2OVER3. LCD, is 3, so I get 2x+4=-2 Then I get 2X+4-4=-2-4. Then I get 2X=-6 Then I divide 2X over 2=6OVER 2. I then get -3, did I do this right, or am I missing something?-LCD is 3xac

Help with math question?!! survey!

ok so heres the question...a survey of 200 people yielded the following results: 94 people owned a dyd player, 127 owned a microwave oven, and 78 owned both. How many people owned the following? a. a

Need help with math problem 2x*2x^3u^5*3u^5

Trying to solve this problem, or simplify-2x * 2x^3u * 3u^5 12x^4u^6

Newton's law of cooling

Newtons law of cooling states that the temperature of an object changes at a rate proportional to the difference between its temperature and that of its surroundings. Suppose that the temperature of a

What are some everyday examples of orthogonal trajectories

My teacher brought up the example of rain water trickling down a hill, since it forms several orthogonal trajectories as the rainwater travels perpendicularly to the hill. Can anyone come up with some

How do you solve for x in this question? 2secx-1 = 0

Do you change secx to 1/cosx ????-Since: 2.sec(x) - 1 = 0, then: sec(x) = 1/2. Since: sec(x) ≡ 1/cos(x), then: 1/cos(x) = 1/2, so: cos(x) = 2. But cos(x) Hence the original equation, 2sec(x) - 1 = 0

Need help with a statistics problem

I had a statistics test today and one question in particular threw me off. I had no idea how to solve the question so I pretty much wrote down some random crap. Anyway, here was the question: A stude

Algebra homework question

There is 1000 students in different math classes On a pie chart... There is about 1/3 of algebra students There is about 1/3 of geomertry students there is about 1/6 of algerbra 2 students There i

Line and intersect of 2 line [Help Plz]

Line A has equation r = t + . Line B passes through (0; 1; 2) and intersects line A at an angle of pi/2 (i.e., the two lines are perpendicular). Find the point of intersection.-Suppose that A and B in

Pre Calculus Question

Determine whether likes L1 and L2 passing through the pairs of points are parallel, perpendicular, or neither. L1: (1,4), (-8,-4) L2: (-4,-6), (5,2) Please answer it and explain how to do it, im havi