Answer:
x=14
Step-by-step explanation:
9x = 3x + 84
9x-3x=84
6x=84
x=84/6
x=14
Answer:
y=⅘x-2
Step-by-step explanation:
8x-10y=20
-10y=-8x+20
y=⅘x-2
Let me think this through again and I will come back to you! 2.22 graph
Answer:
the answer is 112
Step-by-step explanation:
901-789=112
Answer:
A
Step-by-step explanation:
the height a creates with half of the baseline (5) and a leg (10) a right-angled triangle, and we can use Pythagoras to calculate a.
c² = a² + b²
c being the Hypotenuse (the side opposite of the 90° angle, so in our case the 10 side).
10² = a² + 5²
100 = a² + 25
75 = a²
a = sqrt(75) = sqrt(3×25) = 5×sqrt(3)
