B that is the equivalent answer
The questions asking here is basically asking for half of the hypotenuse
Pythagorean Theorem= a^2 + b^2 = c^2
40^2 + 30^2 = c^2
1600 + 900 = c^2
2500 = c^2
square root of 2500 is 50
C = 50
half of C is 25
BE is 25
Answer:
Since each person is running at a constant speed, it means that they both ran at the same pace.
Step-by-step explanation:
A constant rate means to go the same speed per distance. So since both are running at a constant speed, no one is faster then the other, meaning that C is your answer.
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sec(2<em>x</em>) - 4 = 0
sec(2<em>x</em>) = 4
1 / cos(2<em>x</em>) = 4
cos(2<em>x</em>) = 1/4
2<em>x</em> = cos⁻¹(1/4) + 2<em>nπ</em> or 2<em>x</em> = -cos⁻¹(1/4) + 2<em>nπ</em>
(where <em>n</em> is any integer)
<em>x</em> = 1/2 cos⁻¹(1/4) + <em>nπ</em> or <em>x</em> = -1/2 cos⁻¹(1/4) + <em>nπ</em>
The first two positive solutions occur for <em>n</em> = 0 in the first family of solutions, and for <em>n</em> = 1 in the second family, so
<em>x</em> = 1/2 cos⁻¹(1/4) or <em>x</em> = <em>π</em> - 1/2 cos⁻¹(1/4)
<em>x</em> ≈ 0.659 or <em>x</em> ≈ 2.483
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