6 questions
Find the missing number marked by '?'
2
9
7
4
Find the missing terms in multiple of 3: 3, 6, 9, __, 15
10
11
12
13
Given that 3x+2y=12 and 2x+2y=10, solve for x and y.
x=2 and y=3
2y=10-2x
2x=10-2y
x=3 and y=2
Factorize: x2-12x+32
(x-16)(x+2)
(x+16)(x-2)
(x-4)(x-8)
(x-2)(x-7)
A horizontal line has gradient equal to __
"The second derivative of a function is positive". Elaborate on the above statement.