the mean (average) of the data set below
2/4, 18/5, 28/10, 5/20
We are given with 4 fraction
to find mean , we add all the fractions and divide by 4
Lets add all the fractions
Make the denominators same
LCM is 20
Try to get 20 in the denominator
Now we divide by 4
I dont' understand the "yellow" term.& I don't see anything "shown"
However if you draw 2 consecutive cards (with replacement from a deck of 52 cards, the probability of having the same card is 1/52 * 1/52 = 1/2704
or 0.0369%
Answer: a.200 + 24x= 500
b. 12.5 sales but since you can’t make half a sale the answer will be 13
Answer: The tall cliff is 118.20 feet tall and the short cliff is 70.32 feet tall.
If you draw a picture with 2 cliffs and a river in the middle, you have find 2 right triangles. In each triangle the adjacent side to our known angle is the river of 90 feet. And the unknown side is the opposite leg.
Therefore, we can set up a tangent equation.
From the top of the short cliff to the top of the tall cliff, we can right and solve the following trig equation:
tan(28) = x /90
x = 47.88
From the top of the short cliff to the bottom, we can right and solve the following trip equation.
tan(38) = x/90
x = 70.32
The 70.32 is also the height of the short cliff. And adding the two answers together will give you the height of the tall cliff.
