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ericasolis2614
16.08.2021 •
Mathematics
Học 30 tháng mỗi tháng cần 5 triệu
Đầu tháng ra rút ngân hàng 5 triệu để chi tiêu học
Lãi ngân hàng ổn định 7%/năm (0.6%/tháng)
a. Vậy ngay hôm nay phải gửi vào ngân hàng bn tiền?
b.Nếu gửi vào ngân hàng hôm nay 140 triệu thì cứ đầu mỗi tháng ra rút đc bn tiền?
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Ответ:
AC is about 4.29
Step-by-step explanation:
we need to use simple trigonometry for this problem
the tangent of an angle is the ratio between the opposite side and the adjacent side
so the tangent of the angle 35º is BC / AC
tan(35) is about 0.7
this means that BC / AC = 0.7
we know BC is 3
so 3 / AC = 0.7
3 = 0.7(AC)
AC is about 4.29