Set 1 Flashcards
Expand (2a+5)(a-2)
2a² + x - 10
Change the following equation so that B is the subject: a= (2(b-c))/3
(3a+2c)/2
Express (root)75 in its simplest form
5 (root)3
What is the Quadratic Formula?
x=(-b(+ or -)√(b²-4ac))/2a
Solve (x/2)²=100
20
What is the gradient of the line y=3x+5?
3
What is 4 000 100 in standard form?
4.0001 x 10⁶
What would you type into the calculator if: a car costs £500 and increases by 9% over 4 years?
500 x 1.09^4
What would you type into the calculator if: a coat costs £55 after a reduction of 40%. What was its original value?
55 ÷ 0.6
What is 45,000,000,000,000 in standard form?
4.5 x 10^13
What is 0.00000034 in standard form?
3.4 x 10^-8
If cos(x) = 2.49, how do you work out x?
Cos^-1(2.49)
Solve: 3(x + 5) = 30
5
Work out x if y is 4 and z is 3:
x = 2y^2 + (4z)/2
38
What is the formula for finding the area of a sphere?
(4/3)πr^3
