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mayb3imdr3aming
25.01.2021 •
Mathematics
Analyze the diagram below and complete the instructions that follow.Find the value of x and the value of y.
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Ответ:
A
Step-by-step explanation:
Drawing a segment from the left side of the top base to the lower base, creates a right triangle on the left with legs 9 and x₁ and hypotenuse y
Using the tangent ratio in the right triangle and the exact value
tan45° = 1 , then
tan45° =
=
= 1, so x₁ = 9 and
x = 7 + x₁ = 7 + 9 = 16
Using the sine ratio in the right triangle and the exact value
sin45° =
, then
sin45° =
=
=
( cross- multiply )
y = 9![\sqrt{2}](/tpl/images/1063/8522/7e821.png)
Ответ:
Step by step:
(3, -2)