They subtracted 1/3 from both sides instead of dividing 1/3 from both sides
Awesome!!! so his tools and stuff cost $80 and 6.25 PER BIRD HOUSE.
To make a profit he needs to make more that 80 and 6.25+. And he'll sell the bird houses for $16.
So we'll multiply. 16x (blank)=. And make it more than 80.
Step 2.
Let's say that you've got 5 bird houses. Now you have to mutliply 6. 25 and 5 because Juan had to pay that extra 6.25 per bird house.
Lower quartile=25% of total frequency/numbers in the data set
Median=50% of total frequency/numbers in the data set
Upper quartile=75% of total frequency/numbers in the data set
Hope this helps:)
Answer:
70.5°
Step-by-step explanation:
22² = (20)²+(18)² - 2(20)(18) cos X
484 = 400 + 324 - 720 cos X
-240 = -720 cosx
1/3 = cos X
= X
X = 70.52877937
