tommyewall34
09.12.2020 •
Mathematics
How can I solve this?
Please use the simplest format
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Ответ:
option D is true.
Step-by-step explanation:
The right-angled triangle is shown.
From the right-angled triangle,
The angle Ф = 60°
We know that the trigonometric ratio
tan Ф = opposite / adjacent
opposite = 4adjacent = nThus,
tan 60 = 4 / n
√3 = 4/n
n = 4/√3
Thus,
n = 4/√3
= (4 × √3) / (√3 × √3)
= 4√3 / 3
Thus,
n = 4√3 / 3
Using Pythagorean theorem
m = √n²+4²
Thus,
Therefore, option D is true.
Ответ:
x = 16.
Step-by-step explanation:
< 3 and < 6 are same side angles between 2 parallel lines so they are supplementary.
Therefore 8x - 13 + 4x + 1 = 180
12x - 12 = 180
12x = 192
x = 16.