2(2x + 1)
= 2 * 2x + 2
= 4x + 2
So, in conclusion, the answer to this question is a) 2 * 2x + 2
Answer:
Step-by-step explanation:
Lets solve for t in the height equation:
h = 7 cos (pi/3 t)
cos (pi/3 t) = h/7
pi/3 t = cos^-1 (h/7)
t = (3/pi) <span>cos^-1 (h/7)
then we substitute:
</span>t = (3/pi) <span>cos^-1 (1/7)
</span>t = 78.1 s
t = (3/pi) <span>cos^-1 (3/7)
</span>t= 61.71
t = (3/pi) <span>cos^-1 (5/7)
</span>t = 42.41
those are the times in seconds respectively.
Answer:
Step-by-step explanation:
<u>Simplify both sides of the equation</u>
<u>Subtract 2d from both sides</u>
<u>Add 11/2 to both sides</u>
<u></u><u></u>
<u></u>
<u>Divide both sides by 4</u>
<u></u><u></u>
<u></u>
<u>Get your answer</u>
<u></u><u></u>