The square ABCD has side length 20 cm. E is the midpoint of BC.
B.
E
C
20 cm
D
20 cm
Work out the length of AE.
Give your answer correct to one decimal place.

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation:

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²

answer: answer is b.

[m < b = 120º]

step-by-step explanation:

answer: b

step-by-step explanation: