Work out the value of x.
1 answer:
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<u><em>Hi there! :)</em></u>
<u><em>Answer:</em></u>
<u><em>=-16</em></u>
<u><em>*The answer must have a negative sign.*</em></u>
Step-by-step explanation:
<h2><u><em>Lesson: Zero and Negative Exponents</em></u></h2><h2>Zero exponent rule:First, you multiply by exponents.
It change positive to negative sign.
<u><em>Final answer is B. -16</em></u>
Hope this helps!
Have a nice day! :)
:D
-Charlie
Answer:
Mark and Lila are 29.83 meters apart.
Step-by-step explanation:
If we draw a triangle with the information given (see image attached), we have that the angle Lila-Avery-Mark is equal to 70°. Then, to find the distance between Mark and Lila, we just need to use the law of cosines, using the two sides given and the angle between them:
c^2 = a^2 + b^2 - 2*a*b*cos(C)
c^2 = 30^2 + 20^2 - 2*30*20*cos(70)
c^2 = 900 + 400 - 1200*0.342
c^2 = 889.6
c = 29.83 m
Mark and Lila are 29.83 meters apart.
