Answer:
Step-by-step explanation:
Given quadratic equation,
Since, by the quadratic formula,
The solution of a quadratic equation is,
Here, a = 2, b = 31, c = -4.9,
Thus, by the quadratic formula,
Answer:
b = 86
Step-by-step explanation:
49 + b + 45 = 180 Combine like terms
b + 94 = 180 Subtract 94 from both sides to isolate b
b = 86
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Answer:
Center (3,13)
Radius r = 4
Step-by-step explanation:
Circle equation:
Given:
Group x-term and y-term together:
Complete the square for x-term, y-term using formula
2(4x-6)=6x-4
2(4x)-2(6)=6x-4
8x-12=6x-4
8x-6x=-4+12
2x=8
2x/2=8/2
x=4
check...2(4*4-6)=6*4-4
2(10)=24-4
20=20 ✓
A= B + Bcd
A-B= B - B +Bcd
A-B = Bcd
A-B/B = Bcd/B
A-1=cd/d
A-1/d =c
c=A-1/d