Answer:
first one
28.26 im not 100% correct i dont think
Answer:
the first 3 consecutive numbers
x, x +1, x +2 = 270
x+x+1+x+2 =270
3x +3 =270
collect like terms
3x =270 -3
3x =267
divide both sides by 3
x =89
Answer:
<h2>√2,2√4</h2>
Step-by-step explanation:
<h2>√2,√8</h2><h2>√2,√4×2</h2><h2>√2,√2×2×2</h2><h2>√2,√2×2 2</h2><h2>√2,2√4 answer</h2>
Answer:
x = 20
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Using ΔAHC , then
∠ACH = 180 - (2x + 100) = 180 - 2x - 100 = 80 - 2x
∠ECD = ∠ACB ( vertical angles are congruent ), thus
∠ECD = ∠ACH + ∠HCB, that is
3x = 80 - 2x + x
3x = 80 - x ( add x to both sides )
4x = 80 ( divide both sides by 4 )
x = 20
