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Displaying 1-10 of 510 results.

The exact solutions to the quadratic equation 0 = 6x^{2} - 9x - 3 can be written in the form x=p+q√r. What is the value of p+q+r?

Posted 12 hours ago by **emily** in Math 20-2 | 1 answers

#quadratic equations

a. Explain how to determine whether you should shade above or below a boundary line on the graph of an inequality. [1 mark]

b. John is working to earn money to go on a ski trip. He wants to save at least $480. John works at the local swimming pool and makes $40 per hour lifeguarding and $20 per hour teaching swimming lessons.

i. Determine an inequality that would represent this situation. [1 mark]

ii. Draw a graph of the inequality to show the number of hours spent working at each task so that John can earn at least $480 for his ski trip.[2 marks]Click here for a pdf of a blank grid to print off.

iii. Select a test point above the boundary, explain using the graph whether the test point is part of the solution. [1 mark]

iv. Select a test point below the boundary, verify algebraically whether the test point is part of the solution. [1 mark]

Posted 1 day ago by **faresm02** in Math 20-1 | 2 answers

#inequalties

how do you balance equations?

Posted 3 days ago by **jade** in Science 10 | 4 answers

#balance #science #single replacements reactions

Gary is a fitness trainer who makes 30 and 45 minute appointments

with clients. Gary’s contract allows him to make up to 30 hours of

appointments in a week. State the inequality that represents all the

possible combinations of appointments that Gary can make in a

week. Graph the inequality.

Posted 4 days ago by **faresm02** in Math 20-1 | 6 answers

#inequalties

A mass of 55.0kg is 225m above the ground with a velocity of 36.0 m/s. Use conservation of energy to calculate is velocity when it reaches a height of 115m above the ground. Ignore the effects of air resistance.

Posted 1 week ago by **Em2019** in Physics 20 | 3 answers

#velocity #work and energy

Determine the amount of work that must be done to accelerate a 820kg car from 10m/s to 30m/s

Posted 1 week ago by **Em2019** in Physics 20 | 3 answers

#acceleration #work and energy

An electrochemical change occurs when a strip of nickel is immersed in an acidified solution that contains dichromate ions.

The colour change that occurs as the reaction above proceeds is:

Posted 2 weeks ago by **jaejae1717** in Chemistry 30 | 1 answers

#chemistry 30

several methods of determining the roots of a quadratic equation were discussed in lesson 2.3. select one of the methods to determine the roots of the equation 5x^2+2x+15=4x^2+13x-15. verify the roots.

Posted 2 weeks ago by **npaulovich** in Math 20-2 | 4 answers

#quadratic equations #quadratic functions

the solution to nx^2+PX+Q=0 are 4 and -2/5. what information does this tell you about the graph of f(x)=nx^2+px+q?

Posted 2 weeks ago by **npaulovich** in Math 20-2 | 2 answers

#quadratic equations #quadratic functions

tips on which vocabulary to use while analysing a source?

Posted 1 month ago by in Social Studies 10-1 | 3 answers

#social 10 #source analysis #vocabulary