Algebra Answers

Solve the simultaneous equation
Log2x - log2y = 2
Log2(x-2y) = 3

A projectile is launched with a velocity of 30ms-1. If it just clear a barrier 40m high at a distance 30m away from the point of projection, calculate, correct to one decimal place.
Angle of projection
Horizontal range
Maximum height attained ( Take g = 10 ms-2 )

Express (5-2√10)/(3√5+ √2) in the form M√2 + n√5
3x2 + 2y2 + xy + x - 7 = 0

Find dy/dx at the point (-2, 1 )

Q. prove that H={a+ib ЄC, a2+b2=1} is a subgroup of C. Where C is complex number. H be set of real number a+b√2 where a,b Є ф. Show that H be a subgroup of non-zero real no. under multiplication.

A singles tennis tournament has 32 players. When a player loses, that player is eliminated. How many matches must be played before there is a winner?

Find the slope-intercept form of the line whose slope is 7 and that passes though the point (-5,11)
The equation of the line is?

Solve for x and y:3x+4y=9,2x+3y=8

Any bunch of numbers is a ....,so long as the numbers come in pairs.

How is the graph of y = -4x^2 – 5 different from the graph of y = -4x^2 ???

A. It is shifted 5 unit(s) right.

B. It is shifted 5 unit(s) left.

C. It is shifted 5 unit(s) up.

D. It is shifted 5 unit(s) down.

The cost for delivering a load of topsoil is $216.if a landscaping business purchases 11 load on Monday and 9 1/2 loads on Tuesday,how much will they pay

Brgy. Project 4 has a population of 23,000 at year 2012, with a population growth rate of 8 percent per year, at 2017, what population will it be?

one litre of milk costs N$X in a supermarket. The cost of a six-pack of 100ml of fruit juice costs N$15 more than the cost of one litre of milk. Hillman pays N$ 95 for three one litre bottles of milk and two six packs of fruit juice. write the equation in terms of x, representing this formation