9514 1404 393
Answer:
(c) 14.5 cm
Step-by-step explanation:
The relevant trig relation is ...
Sin = Opposite/Hypotenuse
sin(65°) = BC/BA
BC = BA·sin(65°) ≈ (16 cm)·0.9063 ≈ 14.501 cm
BC ≈ 14.5 cm
_____
<em>Additional comment</em>
As is often the case, a simple estimate is all that is needed to identify the correct answer choice.
You only need to know how the long side of a right triangle compares to the others. In an isosceles right triangle, both legs are √2/2 ≈ 0.71 times the hypotenuse. The long side of a right triangle will never be shorter than that. This means the long side must be greater than about 11.2, and cannot be greater than 16. There is only one answer choice in that range.
Answer:
21
Step-by-step explanation:
You have to find the square root.
|5d|
|5| × |8|
5 × 8
= 40
The answer is C
Hope is correct
(2x5+3)8=104
2x5=10
10+3=13
13x8=104
Hope that makes sense! :)
In the first attachment your answer is A.
In the second attachment your answer is D.
In the third attachment your answer is D.
In the fourth attachment your answer is 90cm
In the fifth attachment your answer is 98<span />
