Question

Ucas writes a numerical expression that has a value of 37. Which of the following expressions did Lucas write?

a
2.5^2+19\times2.5-16.75

b
2.5+19\times2.5-16.75

c
2.5^2+19\times2.5+16.75

d
2.5\times19+2.5^3-16.75

Answer 1

a) 2.5^2+19\times2.5-16.75

Explanation:

(2.5)² +(19× 2.5) - 16.75

= 6.25 + 47.5 - 16.75 = 37