Where and when did the English establish their first colonial settlement? O A. St. Augustine - 1565
B. Jamestown - 1607
C. Plymouth - 1620
D. New Amsterdam - 1626

Jamestown

Explanation:

I know this because I had a great history teacher!

angle a = 40.6°

step-by-step explanation:

for any right angle triangle we know the pythagoras theorem reveals

hypotenuse² = height²+base²

by this formula we will calculate the length of hypotenuse

h² = 6²+7²

⇒ h =√36+49 = √85 = 9.22

now from the given triangle sin a = height/ hypotenuse

                                                sin a = 6/9.22 = 0.651

therefore

so angle a = 40.6°

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