Answer:
Step-by-step explanation:
B, D, E
because you have a quotient when you divide and has the same rules as multiplication
Answer:
The standard error of the mean = 5.14 mins
Step-by-step explanation:
Number of random sample (n) = 20
Mean(X) = 31.25 mins
Standard deviation (α) = 23.7 mins
Standard error of mean =
standard deviation / √sample size
= 23.7/√20
= 23.7/4.4721
= 5.14 mins
Answer:
1 3/8 Feet
Step-by-step explanation:
Take 2 1/2 and subtract 1 1/8 which gives u 1 3/8
if u don't understand fractions u can always turn ur fractions into decimals that's what I did :)
Answer:
3. 18 meters.
4. A= 6. 25cm^2 and P= 10 cm
5. 16 feet and 3 feet.
Step-by-step explanation:
3. base= 2 (A/h)
2 (72/8) = 18
4. A= side^2
2.5^2 = 6.25
P= 4 sides
2.5 x 4= 10
5. 16x3= 48
