Answer:
24%
Step-by-step explanation:
45 + 37 + 52 + 94 + 72 = 300
72/300 = 0.24 x 100
= 24%
Answer:
≈ 50.7 cm²
Step-by-step explanation:
The area (A) of Δ XYZ is calculated as
A = bh ( b is the base and h the perpendicular height ), that is
A = × XY × YZ
Calculate YZ using the tangent ratio in the right triangle
tan40° = = = ( multiply both sides by 11 )
11 × tan40° = x , that is
YZ ≈ 9.23 cm
Thus
A = × 11 × 9.23 = 5.5 × 9.23 ≈ 50.7 cm² ( to 3 significant figures )
First is 42 and the second is 4.5
Answer:
a) 0.25x
b) (0.25x+5)*3
Step-by-step explanation: