If every pair of consecutive angles of a quadrilateral are supplementary, then the quadrilateral must be a parallelogram.

A. True

B. False

Which of these equations is always true? sin (x) = cos (x) sin (x) = cos (90° - sin (x) = cos (180° sin (x) = cos (360°-x)

What's the arc length of a semi circle with 9 radius

What's the product of 1.5% of 67,200

Marvin Martian, Aly Alien, and Hank Human are all looking for a hidden spaceship. Their probabilities of finding the spaceship first are as follows: P (Marvin wins) = 30% P (Aly wins) = 0.

All waters are the same size and brand. Which is your best buy ... 40 waters for $5.49 or 72 waters for $9.00?

Each day a small business owner sells 200 pizza slices at $3.00 per slice and 85 sandwiches at $2.50 each. Business expenses come to $60 per day. What is the owner's profit for a ten-day period?

A flagpole is 20 feet tall and its shadow is 8 feet long. A nearby building has a shadow 31 feet long. How tall is the building?

Whats $3316X8 estimate

How many terms are in the algebraic expression 2y + 3x - 5x2 - 9?

9x-4x<3+-11-2 how to do this