Section 11 Foundation Flashcards
1
Q
In a right-angled triangle with angle x, how do we find cos x?
A
cos x = adjacent / hypotenuse
2
Q
Sketch y = x²
A
3
Q
In set notation what is meant by A’?
A
Not A
4
Q
Evaluate 10 to the power of negative 2
A
0.01
5
Q
What decimal multiplier is used to decrease a value by 15%
A
0.85
6
Q
What’s the value of cos 0?
A
1
7
Q
What’s the formula for the area of a minor sector?
A
πr² x angle / 360
8
Q
In set notation what does the intersection A ∩ B represent?
A
A and B
9
Q
What’s the value of sin 90?
A
1
10
Q
If y = kx and k is constant what’s the proportional relationship between x and y?
A
y is directly proportional to x
11
Q
What do we call the quadrilateral shown here?
A
Kite
12
Q
Sketch y = x³
A
