Answer:
YB = 12
Step-by-step explanation:
The product of the measures of the parts of one chord are equal to the product of the measures of the parts of the other chord, that is
7YB = 6 × 14 = 84 ( divide both sides by 7 )
YB = 12
Answer:
25 cm^2
Step-by-step explanation:
The formula for the area of a triangle is .
We're given the base and height (altitude) in this question. The base is 10 cm and the height is 5 cm. All we have to do is plug them in to the formula now.
Answer:
The result is the well-known quadratic formula: x = (-b±√(b²-4ac))/(2a)
Step-by-step explanation:
Start with the standard form quadratic equation:
ax² +bx +c = 0
1. Divide by a
x² +(b/a)x +(c/a) = 0
2. Subtract the constant
x² +(b/a)x = -(c/a)
3. Complete the square
x² +(b/a)x + (b/(2a))² = (b/(2a))²-(c/a)
(x +b/(2a))² = (b²-4ac)/(2a)²
4. Take the square root
x +b/(2a) = ±√(b²-4ac)/(2a)
5. Subtract the constant on the left to get x by itself
x = (-b±√(b²-4ac))/(2a)
X-3=3
2x+9y=11
x=6
2x+9y=11
2x6+9y=11
y= -1/9
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