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4 years ago

If a sample of 23 swimmers is taken from a population of 74 swimmers, the population mean is the meaning of how many swimmers

Mathematics

1 answer:

asambeis [7]4 years ago

6 0

Answer:

Step-by-step explanation:

hello that is the answer.

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Find an equation for the nth term of the arithmetic sequence.

Sunny_sXe [5.5K]

Answer:

asdop

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A car travels a distance on a road of 12.42 miles at a slope of 6.4%. The car has a maximum speed of 203 mph. Assume the car wil

Neko [114]

Answer:

4 mins 31 seconds

Step-by-step explanation:

Maximum speed is 203 mph equivalent to

$203*\frac {5280}{3600}=297.73 ft/s$

Time taken to attain maximum speed, $t=\frac {v}{a}$ where v is velocity and a is acceleration hence

$t=\frac {297.73}{2.93}=101.6155 s$

The distance traveled when at top speed

$d=\frac {v^{2}}{2a}=\frac {(297.73)^{2}}{2*2.93}=15127.16 \approx 15127.2 ft$

Total distance is provided as 12.42 miles converted to ft is 12.42*5280=65577.6 ft

Total distance-distance moved to attain maximum speed will be

65577.6 ft-15127.2 ft=50450.44 ft

Time taken during maximum speed

$t=\frac {50450.44}{297.73}=169.45 s$

Total time=101.6155 s+169.45 s=271.06 s

271.06/60=4 mins 31 seconds

8 0

3 years ago

Read 2 more answers

1-sin^2x / sin^2x + cos^2x

Hunter-Best [27]

Answer:

Solution answer is $cos^2x$

Step-by-step explanation:

$1-sin^2x = cos^2x$

$sin^2x + cos^2x = 1$

then

$1-sin^2x / sin^2x + cos^2x = cos^2x / 1$

Solution answer is $cos^2x$

5 0

3 years ago

The selling price for a classic painting is $16,000, which is $2000 less than two times its original price. What was the origina

kari74 [83]

Answer:

$9,000

Step-by-step explanation:

$16,000 + $2,000 = $18,000

$18,000/2 = $9,000

I think this is correct but I'm not sure.

4 0

3 years ago

The length of a rectangle is 5 times it’s width. If the perimeter of a rectangle is 72 m, find its area

Olenka [21]

X = width. the perimeter of a rectangle is 2*length + 2*width, so the perimeter of this rectangle is 2x + 2(5x) = 72. distribute the two to get 2x + 10x = 72. so 12x = 72. divide by twelve to get x = 6. the width is six, so the perimeter (5x) is 30. the area of a rectangle is length times width, 30*6, so the area is 180 m.

6 0

4 years ago