A different pattern is made using 20 straight lines and 14 arcs. The straight lines and arcs are made from metal 20 straight lines cost £12. Cost of one straight line : Cost of one Ark equals 2:3. Work out the total cost of metal in the pattern

"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

do you have an easier question cause this shh is hard like theheck

step-by-step explanation: