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BartSMP [9]
3 years ago
12

Suppose that a particular artillery piece has a range r = 9010 yards . find its range in miles. use the facts that 1mile=5280ft

and 3ft=1yard. express your answer in miles to three significant figures.
Mathematics
2 answers:
kipiarov [429]3 years ago
8 0
The given range is r = 9010 yards.

Note that
1 mile = 5280 ft
3 ft = 1 yard

Therefore the given range is
r = (9010 \, yd)*(3 \,  \frac{ft}{yd} )*( \frac{1}{5280}  \, \frac{mi}{ft}) =5.1193 \, mi

Answer:  r = 5.119 miles (to 3  sig. figs)
Ivenika [448]3 years ago
3 0

Answer:The given range is r = 9010 yards.

Note that

1 mile = 5280 ft

3 ft = 1 yard

Therefore the given range is

r = (9010 \, yd)*(3 \,  \frac{ft}{yd} )*( \frac{1}{5280}  \, \frac{mi}{ft}) =5.1193 \, mi

Answer:  r = 5.119 miles (to 3  sig. figs)

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SE_{p_A-p_B} = \sqrt{\frac{0.30 * 0.70}{100} + \frac{0.20* 0.80}{250}}

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SE_{p_A-p_B} = \sqrt{0.00274}

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  • Open Statkey
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From the randomization sample, we have:

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SE_{p_A-p_B} = \sqrt{\frac{p_A * (1 - p_A)}{n_A} + \frac{p_A * (1 - p_B)}{n_B}}

SE_{p_A-p_B} = \sqrt{\frac{0.23 * (1 - 0.23)}{100} + \frac{0.228* (1 - 0.228)}{250}}

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SE_{p_A-p_B} = \sqrt{0.001771 + 0.000704064}

SE_{p_A-p_B} = \sqrt{0.002475064}

SE_{p_A-p_B} = 0.050

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