Year 9 - Substitution into Formulae, Expression

Find the value of  $x^2+5$  when  $x=0.2$  

•  $5.04$  

•  $9$  

•  $5.4$  

•  $7$  

Find the value of $1000T^3$  when  $T=0.1$  

•  $100$  

•  $1$  

•  $10$  

•  $3$  

 Find the value of $9+m^2$ when  $m=-3$  

•  $12$  

•  $15$  

•  $18$  

•  $0$  

Find the value of $10r^2+2r-4$ when  $r=0.2$  

•  $4$  

•  $3.2$  

•  $0$  

•  $-3.2$  

Find the value of $4W^2+1+W$  when  $W=-1$  

•  $4$  

•  $-4$  

•  $6$  

•  $5$  

Find the value of $5p+2p^2+20$  when  $p=-10$  

•  $150$  

•  $170$  

•  $190$  

•  $210$  

Work out the value of the following expressions when a = 3, b = 4 and c = 5.
2a² + c²   

• 22
• 34
• 68
• 43

Tags

CCSS.6.EE.A.2C

P = 5x – 5.

Find the value of P when x = 4.

• 20

• 15

• 30

• 25

t = 3 + 5b

When b = 2

Work out the value of t.

• 13

• 10

• 8

• 15

The perimeter of a rectangle is given by

p =2a + 2b

p= perimeter

What is the value of p when a = 3m and b= 2m?

• 12m

• 10m

• 14m

• 20m