Answers 2 and 3
If you use the PEMDAS order of operations rule, then you can see that multiplication has to come first Then you have to subtract four from that
Answer:
x = 71
Step-by-step explanation:
Since the 2 legs are congruent ( both 21 ) then the triangle is isosceles.
Thus the base angles are congruent, then
x =
=
= 71
Ratio and proportion
real:shadow
so the person is 1.8m but the shadow is 4m
so
real:shadow=1.8:4
so
1.8:4=?:14
1.8/4=?/14
times both sides by 14
25.2/4=?
6.3=?
the tree is 6.3 m tall