Miss Robbins needs a border for a bulletin board that has a length of 90 centimeters and a width of
75 centimeters. How many centimeters of border
does she need?

330 cm

Step-by-step explanation:

90 x 2 =180

75 × 2 = 150

180 +150 = 330

i dont know

step-by-step explanation:

"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