VCE Maths questions help (1 Viewer)

boredsatan

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What is the cost per 100 mL of soft drink if 2.25 L of the soft drink cost $1.90
 

boredsatan

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Do you ever go to school?

How many 100mL in 2.25L?

2250/100
= 22.5

Then just divide the total price by 22.5

1.90/22.5 = 0.084444

= 8 cents
Why are you asking me if I go to school or not. I thought I had to do 190/22.5 because it was converting from mL to L
 

boredofstudiesuser1

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Why are you asking me if I go to school or not. I thought I had to do 190/22.5 because it was converting from mL to L
Because you're always posting in school hours.

But yeah, that works too, just remember you converted dollars into cents and that the 22.5 is how many 100mL are in 2.25L -> I wouldn't do it that way because the units get confusing

Then you get 8.4444

Which you have to remember is now in cents
 
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boredsatan

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Because you're always posting in school hours.

But yeah, that works too, just remember you converted dollars into cents and that the 22.5 is how many 100mL are in 2.25L -> I wouldn't do it that way because the units get confusing

Then you get 8.4444

Which you have to remember is now in cents
I didn't have school today
 

boredsatan

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state the transformations from 1/x to 3/(x-1) + 2
Is it a dilation by factor of 3 from x axis or y axis?
 

boredsatan

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y = a/(x-b)^2 + c
Given that the y intercept is (0,-1) and that an asymptote exists at y = 2, find the values of a, b, and c
 

pikachu975

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y = a/(x-b)^2 + c
Given that the y intercept is (0,-1) and that an asymptote exists at y = 2, find the values of a, b, and c
You can find c = 2 considering that a/(x-b)^2 doesn't equal 0 so y can't equal c, and since y can't equal 2, then c = 2.

Not enough info to find a and b.
 

boredsatan

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It is known that the straight line y = 4x-4 touches the curve y = x^2 at the point (2,4). Find the instantaneous rate of change of y with respect to x at the point (2,4) on the curve y = x^2
 

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