Solving for h:
P = mgh
P/mg = h
We can divide both sides by mg, since both mass and gravity are being multiplied and not added.
Hope this helps!! :)
Please review the sum and difference formulas for the trig functions.
In this case you have the difference between two angles u and v and want to find the cosine of this difference.
Here's the appropriate formula:
cos (a-b) = cos a cos b + sin a sin b
Given that sin u = -9/41, equal to the opp side over the hyp., we must find the length of the adj. side and then u itself.
opp side = - 9
hyp = 4
adj side = sqrt( 18+4) = sqrt(22)
Find the side opp angle v in a similar manner.
Then cos (u-v) = cos u cos v + sin u sin v becomes
= (cos u)(15/17) + (-9/41)(sin v) (where you must find cos u and sin v)
See what you can do, then return and comment here if you need further help. Good luck.
Answer:
15 inch
Step-by-step explanation:
for every 1 inch is 3 feet
so divide 45 by 3 to get 15
Answer:
B (5/8 - 6/8)
Step-by-step explanation:
Since we can just multiply the second fraction by two to get a similar denominator, we just need to multiply the second fraction.
Answer:
Two arcs are congruent if and only if their associated chords are congruent.
Step-by-step explanation:
The associated radii of arcs are the radii of the circles the arcs are in. However, you can have two arcs in one circle that are not congruent. The circle would not have two different radii, but the arcs would not necessarily be congruent.
