From the given figure

Since XY = 5.1 and XZ = 7.7, then

To find x, use the inverse of cos

Use the calculator to find x

The answer is
Answer:
14
Step-by-step explanation:
In total, Emily has
yards of ribbon.
Each bow requires
yards of ribbon
<em>To figure out, we divide total amount of ribbon by amount each bow needs:</em>
Number of bows = 
So the maximum number of <em><u>"complete"</u></em> bows Emily can make is 14
You haven't shared the list of expressions from which you are to choose an answer.
However: you can perform this estimation yourself as follows:
Round off both -21.87 and 4.79. -21.87 goes to -22 and 4.79 to 5. Then
a good estimate of -21.87 divided by 4.79 would be -22/5, or -4.4.
Answer:
Diameter: 10 Yards
Step-by-step explanation:
d = 2r
d = 2 ( 5 )
d = 10