Select two ratios that are equivalent to 2: 9.
choose 2 answers:
(choice a)
9: 2
(choice b)
18: 81
(choice c)
12: 54
(choice d)
18: 4
(choice e)
20: 45

B and C

Step-by-step explanation:

Choice B

2 times 9 is 18

9 times 9 is 81

Choice C

2 times 6 is 12

9 times 6 is 54

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629

the answer to this is a. a^2 + b^2 = c^2