Answer:
Step-by-step explanation:
9+7+2=18
But since there are only 12 people in the class, its overlapping. So 18-2(the people that have nether), is 16.
So 16-12 is 4. Therefore 4 people have both a brother and a sister.
Measure angle JKC + measure angle CKL = measure angle JKL
measure angle JKL = 122 and measure angle CKL = 74
Substitute wuth these values in the equation to get measure angle JKC where:
JKC + 74 = 122
measure angle JKC = 122 - 74
Answer:
-6
Step-by-step explanation:
Original Equation: x³+216=0
1). x³+216=0
-216
2). x³=-216
3). ∛x=∛-216
4). x=-6