Answer:
15
Step-by-step explanation:
Use the Pythagorean Thereom:
=
+
= 81+144
= 225
= 15
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We add up all those numbers (excluding 30) and divide by the number of numbers (9). This results in 78.8 (round up to 79).
79-74 = 5. So the mean has increased by 5 points. (C)
1/3(12x-24)=16
3/1[1/3(12x-24)=16]
12x-24=48
+24 +24
12x=72
12x/12=72/12
X=6
Answer:
its c
Step-by-step explanation:
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Answer:64?
Step-by-step explanation: