Answer:
y = 2/7x - 40/7
Step-by-step explanation:
y2 - y1 / x2 - x1
-8 - (-4) / -8 - 6
-4/-14
= 2/7
y = 2/7x + b
-4 = 2/7(6) + b
-4 = 12/7 + b
-40/7
<span>x^2 + y^2 – x – 2y – 11/4 = 0
x^2 - x + y^2 - 2y = 11/4
Using completing the square method:
x^2 - x + 1/4 + y^2 - 2y + 1 = 11/4 + 1 + 1/4
(x - 1/2)^2 + (y - 1)^2 = 4
coordinates: (1/2 , 1)
radius: sqrt (4)</span>
Answer:
Step-by-step explanation:
-4 - (-12), 8-7
= 8, 1
Answer:
Each side of the field is <u>9 yards</u> long.
The correct answer is Ⓑ 9 yd.
Step-by-step explanation:
Given:
A square field has an area of 81 square yards.
Now, to get the length of each side of the field.
As, the square field is having an area of 81 square yards.
Now, to get the side of the square field we put formula:
Therefore, each side of the field is 9 yards long.
The correct answer is Ⓑ 9 yd.
The three items cost altogether is : 111.32 + 28.75 + 73.21 = 213.28
So, he must work 213.28 : 8.75 = 24.3748571429...
Since if he works 24 hours, he wouldn't have enough money to buy the 3 items, so he must work 24 + 1 = 25 hours.
Recheck : 25 x 8.75 = 218.75 ( > 213.28)
