Answer:
a
Step-by-step explanation:
Considering the unit circle, it is found that the sine is negative on the third and on the fourth quadrant.
<h3>What is the unit circle?</h3>
For an angle 
the unit circle is a circle with radius 1 containing the following set of points: 
.
Hence, from the above explanation, the sine is negative when y is negativem, which is on the third and on the fourth quadrant.
More can be learned about the unit circle at brainly.com/question/16852127
#SPJ1
I believe the answer to be 45
Hope this helps you
First lets get the ratio for the avocado and pear trees and work from there
We know there are 5 pear trees for every 2 avocado trees or 5:2
Since we know the total Avocado trees is 18 we can find out how much to multiply the ratio by dividing the total number of trees(18) by the Avocado portion of the ratio (2) 18/2 = 9.
This means to get the total number of pear trees we need to also multiply the pear side of the ratio (5) by 9. 5*9 = 45 pear trees
Now that we know the pear trees we do the same thing with the apple and pear trees to figure out the total apple trees. The ratio of apple to pear trees is 4:3.
Since we know the total number of pear trees is 45 we divide that by the pear side of the ratio (3) to get our multiplier. 45/3=15.
We then multiply our apple side of the ratio (4) by our multiplier (15) to get our total number of apple trees. 4*15=60
Now we know that we have 60 apple trees and 18 avocado trees or 60:18 which reduced is 10:3 apple trees:avocado trees
