F2 Math revision

Formula: 𝑢 2 = 𝑣 2 − 2𝑎x

Find the value of u if v = - 3, a = 9.8 and x = - 10.

• 𝑢 2 = 𝑣 2 − 2𝑎x

• 14

• 14.3

• 14.65

Here is a formula 𝑢 2 = 𝑣 2 − 2𝑎x

Make x the subject of the formula (isolate)

• x = v2 - u2 x 2a

• x = (v2 - u2) / 2a

• x = 2a / v2 - u2

• x = 0

Here is a formula 𝑥 = ( 𝑢+𝑣 2 ) 𝑡

Find the value of x when u = - 3, v = 4 and t = 10.

• x = 5

• x = 6

• x = 3

• x = 4

Here is a formula 𝑥 = ( 𝑢+𝑣 2 ) 𝑡 a.

Make v the subject of the formula

• v = (2x / t) - u

• v = (2x + u) / t

• v = (t/2x) - u

• v = (t+u) / 2

Between which 2 integers does √137 lie?

• 11 and 12

• 12 and 14

• 15 and 16

• 17 and 18

How many natural numbers occur between – 5 and ^3 √125 ?

• 4

• 5

• 6

• 7

Simplify the following algebraic expressions into simplest form:

3𝑥 − 2𝑦 − 4𝑥 + 8 − 5𝑦 − 7

• -x-7y+1

• -2x + 3y +1

• -x+7y-1

• 2x+3y-1

Simplify the following algebraic expressions into simplest form:

3(2𝑥 + 4𝑦 − 8)

• 6x + 12y - 24

• -6x + 12y - 24

• 6x - 12y + 24

• 6x - 12y - 24

Simplify the following algebraic expressions into simplest form:

6𝑡(𝑡 − 4) − 2𝑡(3𝑡 − 12)

• 48t

• 48t-5

• 48t - 3t

• 48t + 34

Simplify the following algebraic expressions into simplest form:

(𝑥 − 2𝑦)(3𝑦 − 4𝑥)

• -4x^2+11xy -6y^2

• 4x^2-11xy+6y^2

• -4x^2+11xy

• 11xy -6y^2