An engineer designed a $620 \mathrm{ft}$. long canal to have a trapezoid cross-section $8.0 \mathrm{ft}$. deep and $14 \mathrm{ft}$. across the bottom, with walls sloping outward at an angle of $30^{\circ}$. A contractor placed a bid to excavate the canal at $\$ 1.75$ /cubic yard plus $10 \%$ profit. What was the bid, to the nearest dollar?

Question

Quizplus · Accepted Answer

The Answer of An engineer designed a $620 \mathrm{ft}$. long canal to have a trapezoid cross-section $8.0 \mathrm{ft}$. deep and $14 \mathrm{ft}$. across the bottom, with walls sloping outward at an angle of $30^{\circ}$. A contractor placed a bid to excavate the canal at $\$ 1.75$ /cubic yard plus $10 \%$ profit. What was the bid, to the nearest dollar?

An Engineer Designed A 620ft620 \mathrm{ft}620ft Long Canal to Have a Trapezoid Cross-Section

An Engineer Designed A $620 \mathrm{ft}$ Long Canal to Have a Trapezoid Cross-Section