Which mapping represents a rotation of 270° clockwise about the origin?

step-by-step explanation:

it's is b

4 + 5 7/9= 9 7/9

step-by-step explanation:

i have no clue what you just said. write a question in english?

"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