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# physics projectile question

a man on 10m high balcony throws a ball at a 45(degree) angle above the horizontal with a speed of 10m/s. by what distance from a target, located on the ground at a distance of 15m from the base of...

# Maths's problem solving

Dear Sir/Madam,  I used to be really good with maths, but after my camping accident I cannot remember most of the things.  Even the simply maths' problem solving I find it hard to teach my kid...

x^2+y^2-6x+8y=-9

# calculus question......

the position function s of a point is given by two dimensional quantities  where t in seconds and the y direction is affected by gravity (10m/s/s). y(t)=4t*sin(θ) - 5t2       &       x(t)=4t*cos(θ) 1-...

what ist 23+332

# Inequalities

Hassan stores books in large boxes and small boxes . Each large box holds 20 books and each small box holds 10 books. He has x larg boxes and y small boxes Hassan must store at least 200 books...

# d+ 2d - 8 = 0

How do I solve this equation d square + 2d - 8 = 0

# a squares perimeter measures 64 in. if a similar square's dimensions are 1/2 as large, what is the measure of each side

how do you calculate and explain.

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# graph d=1.5+0.8t

show axial intercepts and any turning points how would I do this? Plug in a number for t or? and how would I find x and y and graph it

# how can you define the following expresion in its smallest terms: 2/x-3 + 5x\(x-3)^2

im having a problem to try to find the lcm of this expression as the if the lcm is (x-3) one of the fractions is left with a denominator plus the lcm

# find the potential difference when the current is 5 amps and the resistance is 10ohms.

the formula V=IR is used to find the potential difference, in volts, between two points on an electrical circuit. I represents the current in amps and R the resistance in ohms.

# how can you tell the face and base apart on traingular pyramid

how can you tell the face and base apart ?     on a  triangular pyramid  for a 4th grader

# Simultaneous equations help

Create simultaneous equations with the following information, and then solve them. I am thinking of a three digit number. If you multiply the sum of its digits by 31 you get the original number...

hi how r u ???