Friday

April 18, 2014

April 18, 2014

Total # Posts: 32

**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.

**Pre-Calculus**

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

**Pre-Calculus**

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

**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 le...

**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?

**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?

**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 for...

**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?

**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 ...

**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

**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?...

**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?...

**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?...

**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?...

**Math**

How can we factor trinomial: 36x^2+18x+0 Is thislike this: 18x(2x+1)

**Math**

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

**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

**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

**Math**

Simplify 5^1/3 /2(3)^1/2 - 2^1/2

**Math**

Simplify 5^1/3 /2(3)^1/2 - 2^1/2

**Charu**

Simplify 8.3^1/2 /( 6^1/2 + 5^1/2)

**Math**

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

**math**

Simpliy (x^a-1)^3 / (x^2a)(x)

**Math**

Factor 3x^2-16X+K and find the value of K.

**Math**

Factor 3x^2-16X+K and find the value of K.

**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.

**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?

**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?

**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.

**Math**

Factor 15a^5-5a^2

**Math**

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

**Math**

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

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