Answer:
<h2><u>Solution</u><u> </u><u>:</u><u>-</u></h2>
In figure 1 value of y is 1
In figure 2 value of y is 6
In figure 3 value of y is 5
<h3>Problem Solution</h3>
Assuming the spool is a cylinder and the circumference we're winding around is that of a circle with the given area, we can write the relation between circumference and area as
... C = 2√(πA)
10 times the circumference is then
... 10C = 20√(π·20 cm²) = 40√(5π) cm ≈ 159 cm
<h3>Formula Derivation</h3>
The usual formulas for circumference and area are
... C = 2πr
... A = πr²
If we multiply the area formula by π and take the square root, we get
... πA = (πr)²
... √(πA) = πr
Multiplying this by 2 gives circumference.
... C = 2√(πA) = 2πr
Answer:
C=2
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
3C + 4C + -13 = 1
(3C + 4C) + (-13) = 1
Combine like terms.
7C + -13 = 1
Add 13 to both sides.
7C = 14
Divide both sides by 7.
C = 2
Answer:
2x-y-1=0
Step-by-step explanation:
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