Squaring a number means you're multiplying the number by itself. This would mean (6b)^2 = (6b)(6b).
Answer:
r = 105
Step-by-step explanation:
Given quadratic equation:
x² − 9x − 6
Quadratic formula is given by:
(-b ± √b² - 4ac) ÷ 2a
For the equation: x² - 9x - 6
a = 1, b = -9 and c = -6
Substitute in the quadratic formula:
(-b ± √b² - 4ac) ÷ 2a
(-(-9) ± √(-9)² - 4(1*-6)) ÷ 2*1
= 9 ± √105 / 2
The solution of x² − 9x − 6 is expressed as 9 plus or minus the square root of r, all over 2
Therefore, the value of r is 105
Answer:
18 food booths initial costs are $(3,150 + 7d)
Step-by-step explanation:
B. 13
12^2 + 5^2 = c^2
169 = c^2
13 = c
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