Answer:
(1 
, 2 )
Step-by-step explanation:
Given the 2 equations
7x - y = 7 → (1)
x + 2y = 6 → (2)
Multiplying (1) by 2 and adding to (2) will eliminate the y- term
14x - 2y = 14 → (3)
Add (2) and (3) term by term to eliminate y
15x = 20 ( divide both sides by 15 )
x = 
= 
= 1
Substitute this value of x into either of the 2 equations and solve for y
Substituting in (2)
+ 2y = 6
2y = 6 - = 
( divide both sides by 2 )
y = 
= 2
Answer:
a= 5
b=7
c=0
Step-by-step explanation:
i cant explain it but here yu go
Answer:
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Step-by-step explanation:
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Answer: The height is 12 inches.
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Volume: area x height
Replacing with the values given:
972 cubic inches = 81 square inches x h
Solving for h (height)
972/81 = h
12 inches =h
The height is 12 inches.
Feel free to ask for more if needed or if you did not understand something.
Answer:
B
Step-by-step explanation:
120 degrees is 1/3 of the circumference of a circle.
So the formula is 2 * pi * r * theta / 360
Arc length = 2* 12 * 3.14 * 120/360
Arc length =25.12 feet
