
From Left side:


NOTE: sin²θ + cos²θ = 1






Left side = Right side <em>so proof is complete</em>
Answer:
x(-10.5,0)
y.(0,-21)
Step-by-step explanation:
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R-7=7 add the seven from both sides, leaving the r alone, because this is what you are trying to find. Thus the answer is r=14.
Answer:
x - 2y + 8 = 0
Step-by-step explanation:
that is the procedure above
Answer:
K = 3
T = 2
And
H = 12
Step-by-step explanation:
3k = 9
k = 9/3
k = 3.
3k =k + 3t
subtitute value of k
3×3=3+3t
9-3=3t
6/3=t
t=2.
2k + h =18
2×3+h=18
h=18-6
h=12...