Sunday

April 19, 2015

April 19, 2015

Total # Posts: 35

**CHM**

what is meant by the term "free calcium"?
*September 29, 2014*

**Pre Calculus**

Determine an approximate solution to the inequality 2^x=x^2.
*May 3, 2014*

**Pre Calculus**

Solve the inequality sinx>square root x.
*May 3, 2014*

**Pre-Calculus**

How to solve this problem by using logarithm: David inherits $10000 and invests in a Guaranteed Investment Certificate (GIC) that earns 6%, compounded semi-annually. How long will it take for the GIC to be worth $11000.
*April 12, 2014*

**Pre-Calculus**

Here is correct question: Solve sin (pi/4*(x-6))=0.5, 0<x<360
*January 11, 2014*

**Pre-Calculus**

Solve sin (pi/4(x-6))=0.5, 0<x<360
*January 11, 2014*

**Math**

800 people will attend a concert if tickets cost $20 each. Attendance will decrease by 30 people for each $1 increase in the price. The concert promoters need to make a minimum of $12 800. What is the range of ticket prices the concert promoters can charge and still make at ...
*June 7, 2013*

**Physics**

A 48 N cart is pulled across a concrete path at a constant speed. A 42 N force is required to keep the cart moving. What is the coefficient of kinetic friction between the path and the cart?
*September 29, 2012*

**Physics**

a) Why are there no units attached to values of μ? b)A force of 120 N is needed to push a box along a level road at a steady speed. If the force of gravity on the box is 250 N, what is the coefficient of kinetic friction between the box and the road?
*September 29, 2012*

**Physics**

a) The coefficient of kinetic friction between a steel block and an ice rink surface is 0.0100. If a force of 24.5 N keeps the steel block moving at a steady speed, what is the force of gravity on the block? b)A copper block has dimensions 1 cm × 2 cm × 4 cm. A ...
*September 29, 2012*

**Physics**

a) What is the total force of friction on a wagon’s wheels if it takes 30 N to move it at a constant speed across a bumpy path? b) Where on a bicycle do you want to reduce friction? How is this done? c What is meant by the coefficient of kinetic friction?
*September 29, 2012*

**Physics**

(a) A 10 kg box of candy rests on a floor with a coefficient of static friction of 0.30. What force is needed to move the box? b) What is the coefficient of kinetic friction between a rubber tire and the road if a 2000 kg car needs 1.57 × 104 N to keep the car moving at ...
*September 29, 2012*

**earth**

a space traveller determines the radius of a planet to be half of earth . After landing on its surface , he finds the acceleration due to gravity to be twice of that of surface of earth. Find the ratio of mass of planet to the earth
*September 19, 2012*

**Physics**

A policeman travelling 60 km/h spots a speeder ahead , so he accelerates his vehicle at a steady rate of 2.22 m/s^2 for 4.00 s, at which time he catches up with the speeder. a) How fast was the policeman travelling in m/s? b) How fast is the police car travelling after 4.00 s...
*September 17, 2012*

**Physics**

A policeman travelling 60 km/h spots a speeder ahead , so he accelerates his vehicle at a steady rate of 2.22 m/s^2 for 4.00 s, at which time he catches up with the speeder. a) How fast was the policeman travelling in m/s? b) How fast is the police car travelling after 4.00 s...
*September 17, 2012*

**Physics**

A policeman travelling 60 km/h spots a speeder ahead , so he accelerates his vehicle at a steady rate of 2.22 m/s^2 for 4.00 s, at which time he catches up with the speeder. a) How fast was the policeman travelling in m/s? b) How fast is the police car travelling after 4.00 s...
*September 16, 2012*

**Physics**

A policeman travelling 60 km/h spots a speeder ahead , so he accelerates his vehicle at a steady rate of 2.22 m/s^2 for 4.00 s, at which time he catches up with the speeder. a) How fast was the policeman travelling in m/s? b) How fast is the police car travelling after 4.00 s...
*September 16, 2012*

**Math**

How can we factor trinomial: 36x^2+18x+0 Is thislike this: 18x(2x+1)
*June 13, 2012*

**Math**

Given the graph of y = g(t), determine the value of t for which g(t) = −3 . Answer as an integer.
*June 3, 2012*

**Math**

A young Colorado spruce tree is growing at a rate of 20 cm per year. Currently, it is 244 cm tall. A 300 cm tall white spruce tree is growing at a rate of 12 m per year. In how many years will the two trees be the same height? Solve algebraically
*April 30, 2012*

**Math**

a young Colorado spruce tree is growing at a rate of 20 cm per year. Currently, it is 244 cm tall. A 300 cm tall white spruce tree is growing at a rate of 12 m per year. In how many years will the two trees be the same height? Solve algebraically
*April 29, 2012*

**Math**

Simplify 5^1/3 /2(3)^1/2 - 2^1/2
*April 24, 2012*

**Math**

Simplify 5^1/3 /2(3)^1/2 - 2^1/2
*April 24, 2012*

**Charu**

Simplify 8.3^1/2 /( 6^1/2 + 5^1/2)
*April 21, 2012*

**Math**

To which set of numbers does 13.274... belong? and Why? A) whole B) integer C) rational D) Irrational
*April 21, 2012*

**math**

Simpliy (x^a-1)^3 / (x^2a)(x)
*April 21, 2012*

**Math**

Factor 3x^2-16X+K and find the value of K.
*April 14, 2012*

**Math**

Factor 3x^2-16X+K and find the value of K.
*April 10, 2012*

**Math**

A sheet music cabinet is 1.4m wide, 45 cm deep and 1.5m high. What is the surface area of the cabinet, not including the open front? Express your answer to the nearest tenth of a square metre.
*March 22, 2012*

**Math**

A conical paper cup for holding popcorn has a radius of 3 in. and height of 6 in. How much paper, to the nearest square inch, is used to make the cup?
*March 22, 2012*

**Math**

A conical paper cup for holding popcorn has a radius of 3 in. and height of 6 in. How much paper, to the nearest square inch, is used to make the cup?
*March 21, 2012*

**Math**

A sheet music cabinet is 1.4m wide, 45 cm deep and 1.5m high. What is the surface area of the cabinet, not including the open front? Express your answer to the nearest tenth of a square metre.
*March 21, 2012*

**Math**

Factor 15a^5-5a^2
*March 21, 2012*

**Math**

Simplify using the exponent law. Express your answer using positive exponents only. [4x^1/3]^1/2 [9x]^-3/2 / [27x]^-1/3
*March 19, 2012*

**Math**

simplify using the exponent law. express your answer using positive exponents only. (x^2)^3(2x^3)^-3/(4x)^2
*March 18, 2012*

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