Answer:
3 feet
Step-by-step explanation:
A cube has 6 square congruent faces, thus
area of 1 face = = 9 ft²
The area of a square = s² ← s is the length of a side, hence
s² = 9 ( take the square root of both sides )
s = = 3
Answer:It's the 1st one
Step-by-step explanation:
Answer:
Step-by-step explanation:
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y=-2x+1
So, -2x, you go down 2 every time you go across 1. So, the rise is -2, and the run is 1, so it's -2x
+1: when you reach an x of 0, you are still up 1. So, the y-intercept is 1
Answer:
y=9 and x=9*sqrt(2)
Step-by-step explanation:
tan(45)=9/y, 1=9/y, y=9
sin(45)=9/x, 1/sqrt(2)=9/x, x=9*sqrt(2)