Answer:
16.97
Step-by-step explanation:
Therefore b= 16.97
Answer:
19 m
Step-by-step explanation:
The width is 2 less than the length, so the perimeter is ...
P = 2(L +W)
72 = 2(L +(L -2))
76 = 4L . . . . . . . . add 4
19 = L
The length of the rectangle is 19 meters.
1.34 hectoliters (hl) = 134 liters (l)
(1 l = 100 centiliters (cl))
134 l = 13,400 cl
There are 13,400 cl in the bucket.
The answer is 5.5
The standard deviation (sd or σ) of the sample mean difference is:
sd = √(sd₁²/n₁ + sd₂²/n₂)
For the population A:
sd₁ = 17.6
n₁ = 25
For the population B:
sd₂ = 21.2
n₂ = 30
Hence:
sd = √(sd₁²/n₁ + sd₂²/n₂)
= √(17.6²/20 + 21.2²/30)
= √(309.76/20 + 449.44/30)
= √(15.49 + 14.98)
= √(30.47)
= 5.5
Round 3.7 to 4 or do 2 times 3 then .7 times 2 and get 7.4 which is almost 8.
