7. With the use of a calculator, find the value of each of the following, giving your answer in standard form, correct to 3 signif...
3y^2+19y+6
4a+9b+1/2b=270
1.8÷44.47
Of the families in a village, 70% have dogs and 45% have dogs and cats.
Of the families in this village, 18% have neither a dog, ...
Find the value of x when y = 5, if x varies directly as 4y-1 and x = 14 when y = 2.
6.0 ÷1.5
4a+9b+1/2b
y=3x-1
60°, 300°, 45°, - 405° x- y- -
()
() sin60°, cos300°, csc (- 45°) sec (-...
