Answer : Distance between the ships to the nearest miles = 106.03 ≈ 106 mi.
Explanation :
Since we have shown in the figure below :
a=70 mi.
b=52 mi.
c=x mi.
So, we use the cosine rule , which states that
So, c = x= 106.03 mi.
Hence, distance between the ships to the nearest miles = 106.03 ≈ 106 mi.
<span>4ab^2 − 3ab^2 = ab^2
combine like terms
help it helps</span>
Answer:
H0 : μ1 - μ2 = 0
H1: : μ1 - μ2 ≠ 0
we reject the Null and we conclude that babies prefer actual speaking to humming.
Step-by-step explanation:
H0 : μ1 - μ2 = 0
H1: : μ1 - μ2 ≠ 0
Mean difference, d = 27.79
Standard deviation of difference, Sd = 63.18
Sample size, n = 50
The test statistic :
d / (Sd / √n)
Test statistic :
27.79 / (63.18 / √50)
27.79 / 8.9350012
= 3.11
Using the Test statistic score, we can obtain the Pvalue
Using the standard normal table ;
Pvalue = P(x<-Z or x>Z) = 0.0018709
Pvalue is very low
Pvalue < α ; Hence, we reject the Null and we conclude that babies prefer actual speaking to humming.
Well we need to follow PEMDAS. Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. The "X" is in the Exponents place. Therefore we would take 10 X 5.5 first. Which equals 55. Then you have to take it times 1. So the answer to the first one is 55. Then with the next one, you do the same steps, except at the end, your exponent is 2. So you would take 55 times 55 and get 3,025. So the answer to your second one is 3,025. Hope this is correct and hope this helps!
-Twix
Answer:
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Step-by-step explanation:
20y
Meaning 20xy
Y=1
So 20 is 20
