Q1.write as a single fraction in its simplest form.

q2. for her holiday, alyssa changed 2800 malaysian ringgits(myr) to us($) when the exchange rate was 1 myr = $0.325

at the end of her holiday she had $210 left.

a. how many dollars did she spend?
$

b. she changed the $210 for 750 myr.
what was the exchange rate in dollars for 1 myr?
1 myr = $

q3. the volume of a cylindrical is 550cm3, correct to the nearest 10cm3.
the height of the can is 12cm correct to the nearest centimeter.

calculate the upper bound of the radius of the can.
give your answer correct to 3 decimal places.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

definitely a. the others have almost all data points on one side of the line.

step-by-step explanation:

jeff jeff

step-by-step explanation:

12r - 8 - 12

you have to combine like terms. below i have bolded the like terms:

12r - 8 - 12

together it combines to:

12r - 20

hope this !