Answer:
-4 and 8. -2 and 6. -1 and 5. all equals 4
Step-by-step explanation:
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Answer:
x=85
Step-by-step explanation:
2x+5=120+55
2x+5=175
2x=175-5
2x=170
x=170/2
x=85
800 = l(w)
120 = 2l + 2w
800 = 20(40)
120 = 2(40) + 2(20)
40(6)=240
20(6)=120
P=2(240) + 2(120)
P=480+240
P=720
Answer: Perimeter is 720ft
answer:
option b (2.18%)
Step-by-step explanation:
5.62-5.5= 0.12
0.12
___ × 100= 2.18%
0.52
hope it helps!
Answer:
E(x) = 1.43 (Approx)
Step-by-step explanation:
Given:
Total number of camera = 7
Defective camera = 5
Sample selected = 2
Computation:
when x = 0
P(x=0) = 2/7 × 1/6 = 2/42
P(x=1) = [2/7 × 5/6] + [5/7 × 2/6] = 20/42
P(x=2) = 5/7 × 4/6 = 20/42
So,
E(x) = [0×2/42] + [1×20/42] + [2×20/42]
E(x) = 1.43 (Approx)
