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Verizon [17]
3 years ago
15

"The symbolic claim, if recognized, would give Russia control of... half the Arctic seabed, [or about] 460,000 square miles." If

the Arctic seabed is shaped like a circle, what is its approximate radius? A. 146 miles B. 732 miles C.541 miles D.383 miles
Mathematics
1 answer:
love history [14]3 years ago
8 0
OOOH!I know the Answer it is A. 146 miles.And double OOOHHHH!!!!! I see your snapchat  icon it looks sooooooooooooo cuteeeeeeeeeeeeeeeee!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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If a Ferrari drove 300 kilometers in one and a half hours. How fast was the car going?
vfiekz [6]
V=s/t
s=300 km = 300000 m
t=1 h and 30 min = 5400 sec
v=300/1,5= 200 km/h
or
v=300000/5400=55,5 m/s
8 0
3 years ago
4/9+3/10= what's the answer please​
Marta_Voda [28]

Answer:

67/90

Step-by-step explanation:

no explanation

3 0
3 years ago
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One side of a triangle is 3 times the second side. The third side is 17 feet longer than the second side. The perimeter of a
liberstina [14]

Answer:

Side 1=21 ft, Side 2=7, Side 3=24

Step-by-step explanation:

52 = (3x) + (x) + (x+17) -> 52 = 5x + 17 -> 5x = 35 -> x = 7

Plus 7 into the equation whenever you see an x.

7 0
3 years ago
Mr. Chen started doing yard work at 10:00. He watered flowers for 6 minutes, weeded his garden for 12 minutes, and trimmed bushe
PilotLPTM [1.2K]

Answer:

Step-by-step explanation:idk

8 0
2 years ago
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A product comes in cans labeled "38 oz". A random sample of 10 cans had the following weights:
KiRa [710]

Answer:

b. 35.9, 39.1 ounces

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

barX=37.465 represent the sample mean for the sample  

\mu population mean (variable of interest)

s=2.27 represent the sample standard deviation

n=10 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

barX +- t*[(s)/(sqrt{n))]   (1)

In order to calculate the critical value t we need to find first the degrees of freedom, given by:

df=n-1=10-1=9

Since the Confidence is 0.95 or 95%, the value of alpha=0.05 and \alpha/2 =0.025, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.025,9)".And we see that t_(alpha/2)=2.26

Now we have everything in order to replace into formula (1):

37.465-2.26[(2.27)/(sqrt{10))]=35.9    

37.465+2.26[(2.27)/(sqrt{10))]=39.1

So on this case the 95% confidence interval would be given by (35.9;39.1)    

7 0
3 years ago
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