Which of the following measurements is least precise, and how many significant digits does it

Mathematics

1 answer:

gtnhenbr [62]2 years ago

7 0

Answer:

50.25 cm trust me

Step-by-step explanation:

5.25 cm

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An arc of length 8 inches. Is intercepted by a central angle in a circle with a radius of 3 inches. What is the measurement of t

nevsk [136]

Answer:

the answer is 12

Step-by-step explanation:

7 0

3 years ago

How much fabric is needed to create the lateral faces of the tent?

jek_recluse [69]

Left and right side: 6.4*7=44.8
44.8+44.8=89.6
front (where the zipper is) and back: half of 5*8=20
20+20=40

40+89.6=129.6

the area of the bottom is 7*8=56

the total area is 129.6+56=185.6

I am not sure what lateral area includes. To me, the answer should be 129.6, but 129.6 is not a choice.
I'd suggest 185.6, the total surface area.

7 0

3 years ago

The heights of American men are normally distributed. If a random sample of American men is taken and the confidence interval is

solmaris [256]

Answer:

Step-by-step explanation:

Given the confidence interval of the heights of american heights given as (65.3,73.7);

Lower confidence interval L = 65.3 and Upper confidence interval U = 73.7

Sample mean will be the average of both confidence interval . This is expressed mathematically as $\overline x = \frac{L+U}{2}$