MaxWong

Np. :D

25)Format of equation of vertical line: x = (x-coord of passing point.).

ANS : D.

27) The function is y = 4.25x + 50 and that's elementary....... Solving is elementary too....... Just substitute x = 6 into the formula.

y = 4.25(6) + 50 = 25.5 + 50 = $75.5 OR $75.50 

ANS : D.

28) integers means negative and positive whole numbers. negative money is odd right? SO the answer won't be A and B.

D wouldn't be the answer too because you won't have $sqrt3 in your wallet.

ANS: C.

Type in 208sqrt(3) in the calc and press 'Enter' on your keyboard

23) We subtitute x = -1 and y = 4 in each of the choices to test out what is the answer.

ANS : A

17) You have to test all those methods on that equation until you found out in one method the last step is x = something.

ANS : B

15) We first make the function slope-intercept form:

\(2x+5y = -30 \\5y = -2x-30\\ y = -\dfrac{2}{5}x-6\)

The format for slope intercept form is : y = (slope)x + (y-intercept) or y = mx + b

Now equate the terms: b = -6

Therefore the y-intercept is -6. ANS: D

Because this is the maths forum!! :D Welcome because you just signed up!! :D

\(\sqrt{1.2}\times \sqrt{3}\div \dfrac{1}{3}\)

= \(\sqrt{3.6}\times 3\\ =\dfrac{6}{\sqrt{10}}\times 3\\ =\dfrac{18}{\sqrt{10}}\\ =\dfrac{18\sqrt{10}}{10}\\ =\dfrac{9\sqrt{10}}{5}\)

See your later post.

\(\dfrac{0.3}{0.2(2.9)}\\ =\dfrac{0.3}{0.58}\\ =\dfrac{30}{58}\\ =\dfrac{15}{29}\)