Answer:
-4k+4
b/c -4 multiply both k and -1
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Answer:idk im on the quiz and im stuck just like you
Step-by-step explanation:
Answer:
24 cm
Step-by-step explanation:
The number of possible combinations is given by
... C(18, 3) = 18!/(3!(18-3)!) = 18·17·16/(3·2·1) = 816 . . . . possible combinations
_____
There are 18 ways to choose the first one; 17 ways to choose the second one, and 16 ways to choose the 3rd one. The same 3 students can be chosen in any of 3! = 6 different orders, so the product 18·17·16 must be divided by 6 to get the number of possible combinations in which order doesn't matter.
Answer:
In a triangle, the segment joining the midpoints of any two sides will be parallel to the third side and half its length ⇒DE is parallel to AC, and DE = 8, AC=16.
Similarly, DF is parallel to BC, and DF=6, BC=12
Step-by-step explanation:
Similarly, EF is parallel to AB, and EF=3.5, AB=7
Hence, perimeter of ΔDEF = 8+6+3.5 = 17.5
