Answer:
P = 63.6 inches
Step-by-step explanation:
you need to find the length of the third side:
9² + 21² = c²
81 + 441 = c²
c² = 522
c = 
c ≈ 22.8
P = 18 + 2(22.8)
P = 63.6 inches
Answer:
Mar 25, 2017 · 1 answer
XXXx∈[−2,+7) would mean −2≤ x<7. XXXx∈(4,+∞) would mean 4<x (with no upper limit). For the given case. XXXx<3 implies x<5
A plane is moving north st 120 km/h
Answer:
Right angle triangle goes to 15m, 8m, 17m
Step-by-step explanation:
Square root of 15^2 + 8^2 is 17
(The use of a^2 + b^2 = c^2 - Pythagoras's Theorem)
So, 10m ,11m ,15m isn't a right angle triangle
Hope this helps!
