The best and most correct answer among the choices provided by your question is the third choice.
<span>The unit of measurement should the student use is grams.</span>
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It’s the third one I believe try that
As given,
"tangent line to f(x) is tangent at (7,5)", therefore f(7)=5.
Line is tangent at (7,5) and passes through (0,4), therefore the slope of the line is the slope of f(x=7) = f'(7).
5 = side a
3 = side c
angle B = 62 degrees
JK is side b
<span><span>Use the Law of Cosines to find the length of side b.</span><span>
<span>b^2 = </span><span>a^2 + c^2 − 2ac cos(B)</span></span><span> <span>
b^2 = </span><span>(5^2 + 3^2) − ( 2 x 5 x 3) cos(62°)</span></span><span> <span>
b^2 = </span>(25 + 9) − 30 x 0.469</span><span> <span>
b^2 = </span>34 - 30 x 0.469</span><span> <span>
b^2 = </span>34 - 14.084</span><span> <span>
b^2 = </span>19.916</span><span>
b = √19.916</span><span>
b = 4.463
Rounded to the nearest tenth is 4.5 mm.
Hope this helps!</span></span>
