If 8 men can chop down 28 trees in one day, how many trees can 20 men chop down in one day?
2 answers:
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<u>We know that (a + b)(a - b) = a² - b²:</u>
Answer: LCD = ( x + 1) (x - 1)
Answer:
x ≈ 20.42, y ≈ 11.71
Step-by-step explanation:
Using the cosine ratio on the right triangle on the right, that is
cos20° = =
Multiply both sides by y
y × cos20° = 11 ( divide both sides by cos20° )
y = ≈ 11.71
Using the sine ratio on the right triangle on the left, that is
sin35° = =
=
Multiply both sides by x
x × sin35° = 11.71 ( divide both sides by sin35° )
x = ≈ 20.42