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A ball was initally thrown horizontally and landed 15s at an angle of 15 degrees. Find the: a) Initial Velocity b) FINAL Horizontal Velocity c) FINAL Vertical Velocity d) Displacement.

Helpmeoutpls? Question 3 - B and C StepbyStep would be nice, TY :)

Littlehelppls? TY :)

Littlehelp with question 1 and 10A ? StepbyStep or any working out would be nice. TY :)

I'm obviously not going to post it here. I will PM :). It's around 600 words. Please give me suggestions and an estimated mark if possible? Thank you

littlehelp? (a) Given the points (4,0), B (-2,0) and P (x,y), find the gradients of AP and BP. AP = y/x-4 BP = y/x+2 (b) Hence show that the locus of the point P(x,y) that moves so the angle APB is a right angle has equation x^2 + y^2 - 2x - 9 = 0. (c) Complete the square in x, and...

(b) Find the area of the shaded region OABC? <- Thanks :)

littlehelp? Differentiate from first principle y = x^2 +2 =2x Find the gradient of the secant through the points A (1,3) and B (3,11) on this curve. =4 Find the equation of the tangent to the curve at the point A 2x - y + 1 =0 Where does the tangent cut the x-axis x = -1/2 Find the...

Differentiate f(x) = √x+2 from first principle. Ok, here is what I got at the end... 1/h x h/√(x+h)+2 + √x+2 The answer is 1/2√x+2 . But how? Thanks.

littlehelp? If electricty cost 15c per kilowatt-hour calculate i) The energy consumed ii) cost of using: a) 2000W radiator for 6 hours b) a 100W globe and a 1kW radiator for 3 hours c) a 7200W water heater for 15 mins thanks :)

Sorry if this is a dumb question =='' but.... Does the HSC assessments (especially English) change every year? I saw the English assessments task that people did in my school for their HSC and I was wondering If I would get the same thing next year (I'm Yr 11 btw). I will be doing the same...

Littlehelp? Solve for -180≤θ≤180, round you answers to the nearest degree? √3 tan3θ + 1 = 0 THX

Yo, i need help with question 35....littlehelp?

Title says all...is it worth buying notes/essays from others? Or should I make my own notes? I find it hard making notes because their is so much "stuff" that seems important and you just keep putting them on the syllabus dot-points/expanding your notes even more, which is going to be hard to...

ok, what am i doing wrong here? I'm asked to rearrange this to make k the subject? T = 2pi√m/k T^2 = 4pi^2 m/k <--Divide on this by K? T^2/k = 4pi^2 m KT^2 = 4pi^2 m k = 4pi^2m/T <- I got this =='' is this right?

Thx

Thx

Use the product rule to differentiate. y= x^2 (x^3 - 2x + 5) y = (7x^3 -1)(2x^2 + 6x + 5) THX

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A fruit bat uses echo location to navigate in the dark. A hovering bat emitted an ultrasonic sound wave of frequency 20 kHz. A return wave reflected from a large tree was detected by the bat 0.50 seconds after the original wave was sent. If the speed of sound in air is 340 m/s, how far away was...