Simplify the fraction by reducing it to its lowest terms. \( \frac{35}{40} \)

EXAM CODE 01 18. Evaluate \( \int_{C} x d y \), where \( C \) is the line segment from \( (1,2) \) to \( (2,3) \). A. \( \quad 1 \) B. \( \quad 1.5 \) C. \( \quad 2 \) D. \( \quad 2.5 \) 19. Evaluate \( \int_{C} 2 z d s \), where \( C \) is the curve given by the equations \( x=\cos t, y=\sin t, \quad z=t, \quad 0 \leq t \leq 2 \pi \). A. \( \quad 4 \sqrt{2} \pi^{2} \) B. \( 2 \sqrt{2} \pi^{2} \) C. \( \sqrt{2} \pi \) D. \( \quad \sqrt{2} \)

The height of the chair is 48 cm . Reuben has measured the width of the chair on the scale drawing to be 3 cm and the height of the chair on the scale drawing to be 6 cm . Calculate the width of the chair, \( x \).

Factor completely. \[ \begin{array}{l}4 x^{2}+28 x+40 \\ 4(x+5)(x+2) \\ (4 x+10)(x+4) \\ 4(x-5)(x-2) \\ (4 x+8)(x+5)\end{array} \]

b. \( \frac{3 x}{4}+\frac{2 x}{3} \)

Numeric 1 point The total cost for 4 friends to attend a concert is \( \$ 94.56 \). How much does 1 concert ticket cost?