(leave the 15 alone for the duration of the sum)
= 5*675 - 5*3*210 - 210 ------------------------------ time's out bracket
=5*675 -210(5*3 +1) ---------------------------- took out common "-210" out of last
two terms'
= 5*675 -210(15+1)
= 5*675 -210(16)
=5*675 -210*16
So here we have similar parallelograms. Which means, that 24/16 must equal to y/4.
24/16=y/4
3/2=y/4
4•3=2•y
12=2y
y=6
Answer:
a)
Step-by-step explanation:
is approximately 17.8
17² = 289
18² = 324
315 is between 289 and 324
