That's the ratio of 4,126,532 to 1,000,000 so it's rational.
Here's a little factoid that I never see mentioned anywhere, but I think it can be really helpful to know:
==> Any number that you can WRITE DOWN COMPLETELY using digits (plus a decimal point or a fraction bar if you need them) is a rational number.
If " 4.126532 " is the whole thing, you sure nuff wrote it down, so it's rational.
Answer:
C. Mean
Step-by-step explanation:
We have been given that obtaining a measure of intelligence from a group of college students would likely yield a somewhat normal distribution (that is, there shouldn't be any extreme outliers).
We know that median is best measure of central tendency with extreme outliers, while mean is the best measure of central tendency when the data is normally distributed.
Mode is used when data are measured in a nominal scale.
Since the measure of intelligence from a group of college students yield a somewhat normal distribution, therefore, mean will be the best measure of central tendency.
Answer:
2.5m
Step-by-step explanation:
50m divided by 20 = 2.5m
Answer:
CE = 17
Step-by-step explanation:
∵ m∠D = 90
∵ DK ⊥ CE
∴ m∠KDE = m∠KCD⇒Complement angles to angle CDK
In the two Δ KDE and KCD:
∵ m∠KDE = m∠KCD
∵ m∠DKE = m∠CKD
∵ DK is a common side
∴ Δ KDE is similar to ΔKCD
∴ ![\frac{KD}{KC}=\frac{DE}{CD}=\frac{KE}{KD}](https://tex.z-dn.net/?f=%5Cfrac%7BKD%7D%7BKC%7D%3D%5Cfrac%7BDE%7D%7BCD%7D%3D%5Cfrac%7BKE%7D%7BKD%7D)
∵ DE : CD = 5 : 3
∴ ![\frac{KD}{KC}=\frac{5}{3}](https://tex.z-dn.net/?f=%5Cfrac%7BKD%7D%7BKC%7D%3D%5Cfrac%7B5%7D%7B3%7D)
∴ KD = 5/3 KC
∵ KE = KC + 8
∵ ![\frac{KE}{KD}=\frac{5}{3}](https://tex.z-dn.net/?f=%5Cfrac%7BKE%7D%7BKD%7D%3D%5Cfrac%7B5%7D%7B3%7D)
∴ ![\frac{KC+8}{\frac{5}{3}KC }=\frac{5}{3}](https://tex.z-dn.net/?f=%5Cfrac%7BKC%2B8%7D%7B%5Cfrac%7B5%7D%7B3%7DKC%20%7D%3D%5Cfrac%7B5%7D%7B3%7D)
∴ ![KC + 8 = \frac{25}{9}KC](https://tex.z-dn.net/?f=KC%20%2B%208%20%3D%20%5Cfrac%7B25%7D%7B9%7DKC)
∴ ![\frac{25}{9}KC - KC=8](https://tex.z-dn.net/?f=%5Cfrac%7B25%7D%7B9%7DKC%20-%20KC%3D8)
∴ ![\frac{16}{9}KC=8](https://tex.z-dn.net/?f=%5Cfrac%7B16%7D%7B9%7DKC%3D8)
∴ KC = (8 × 9) ÷ 16 = 4.5
∴ KE = 8 + 4.5 = 12.5
∴ CE = 12.5 + 4.5 = 17
Answer:
Average speed = 9.91 m/s
Explanation :
Total distance covered by a runner = 200 m
Time taken to complete this distance = 20.19 sec
We need to find the average of runner speed in meter/sec
We use the speed, distance, time formula
![speed = \frac{distance}{time}](https://tex.z-dn.net/?f=speed%20%3D%20%5Cfrac%7Bdistance%7D%7Btime%7D)
speed = ![\frac{200}{20.19}](https://tex.z-dn.net/?f=%5Cfrac%7B200%7D%7B20.19%7D)
Average speed = 9.91 m/s
that's the final answer.
I hope it will help you.