I think 12 might be the second one, I'm not sure though!
Answer: a= 16
Step-by-step explanation:
We have the following expression:
To find the value of the coefficient "a" you must use the distributive property to multiply the expression:
until you transform it to the form:
Then we have
Therefore the value of a in the polynomial is 16
Answer:
102
Step-by-step explanation:
triangle area = 180 degrees
straight line = 180 degrees
180 - 127 = 53
49
49 + 53 + 3rd angle = 180
3rd angle = 78
180-78 = x
x = 102
Okay so i cant figure out the first one, but the second one looks like -7:3
<h3>
Answer: 128.74 square meters</h3>
=========================================================
Explanation:
The area of the garden only (ignore the circular pathway) is approximately
A = pi*r^2
A = 3.14*20^2
A = 1256
The area of the garden plus the path is approximately
A = pi*r^2
A = 3.14*21^2
A = 1384.74
Notie how I added on 1 meter to increase the radius to 21
Subtract the two circle areas to get the area of the circular ring.
1384.74 - 1256 = 128.74
The units for all of the areas mentioned are "square meters".
