Given the figure with EI SF, midpoints E and I, EV = 7 cm, VI = 8.5 cm, EI = 10 cm, ?VEI = 57° and ?EVI = 81°. Find the following.

(a) VS

(b) FS

(c) ?S

(d) ?F




(a) 14 cm
(b) 20 cm
(c) 57°
(d) 42°

Mathematics

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Use a table of values to graph the plane curve defined by the following parametric equations. Find a rectangular equation for the curve.x = t3 + 1, y = t3 - 15, for t in [-2, 2] 

A.

y = - x2, for x in [-4, 4]
B.

y = - x - 16, for x in [-7, 9]
C.

y = x3, for x in [-3, 1]
D.

y = x - 16, for x in [-7, 9]

Mathematics

Verify the identity. -   = 4 cot ? csc ?

What will be an ideal response?

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Determine the equation of the line described. Put the answer in the slope-intercept form, if possible.Through (2, 5), perpendicular to x = 8

A. y = 5 B. y = 8 C. y = -5 D. x = 8

Mathematics

Solve the problem.Find the total surface area of a box 10.9 cm by 16.7 cm by 18 cm. Round to the nearest whole number.

A. 679 cm2 B. 1358 cm2 C. 1329 cm2 D. 1057 cm2

Mathematics