Answer:
V=πr2h
/3
V=πr2h
/3=π·2.52·8
/3≈52.35988
so the volume is 52.36 inches
100 is the best sample size
According to sources, the most probable answer to this query is 100 samples. Sample size determine the amount of subjects needed for the study to have an intended effect
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Answer:
Reduce each side by 1/3, 9m would be 3m, 12m would be 4m, 15m would be 5m.
Step-by-step explanation:
To make a triangle a fraction smaller (such as 1/3, 1/4, or 1/6) just multiply the sides by the fraction. To make a triangle a fraction bigger, multiply it by the sides but then add the solution to the original triangle to get a triangle a fraction bigger.
Answer: tan A=4/3
Step-by-step explanation:
Theo đề ta có: 5sinA=4 suy ra: sinA=4/5, mà ta đã biết là: sinA= cạnh đối/cạnh huyền, suy ra: cạnh đối của góc A =4, cạnh huyền =5
Áp dụng định lí py ta go ta đc:
5^2=4^2+x^2
=) x=3
Vậy cạnh kề của góc A=3
Mà tanA = cạnh đối/cạnh kề
Vậy giá trị của tanA=4/3
(bạn vẽ hình ra thì có thể nhìn rõ hơn đấy, cảm ơn bạn đã tham khảo câu trả lời của mik)
Formula for horizontal lines
slope = 0
slope-intersection equation = y=mx+b
m = 0
equation becomes = y = b, where b is y-coordinate of the y-intercept.