Answer:
Slope of path at time t = 4 is y '(4)/x '(4) = (-15cos(4) + 4cos(4) - 1 + sin(4))/(6 - 2sin(4))
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When horizontal position is 60:
2 + 6t + 2cos(t) = 60
Step-by-step explanation:
Well to start off with, this is an intersecting angle. as you can see, on part is already at a 60 degree angle. each angle inside is an acute angle, but they are still equal to each other.
because of this, you have to look at the angle inside of this (the acute angle)
both X and Y would also be 60 degrees...
hope this helps!
Answer: Scale factor of -1/2
Step-by-step explanation:
B=A*(-2)
A=B/(-2)
A=-(B/2)
A=B*(-1/2)
Scale factor of -1/2
Answer:
Variance = 25
Step-by-step explanation:
<em>Standard deviation is the under root of variance.</em>
<em>Variance is the square of standard deviation.</em>
<u>Data:</u>
Mean = 70
Variance = ?
Standard deviation = √variance = 5
Variance = 5²
Variance = 25.
Therefore, the variance is 25.
Answer:
Step-by-step explanation:
she will earn 12 dollars a year i think
