Suppose a triangle has sides a, b, and c, and let be the angle opposite the side of length a. If cos > 0, what must be true?

A. b2 + c2 > a2 B. a2 + b2 > c2 C. b2 + c2 < a2 D. a2 + b2 = c 2

A box of cereal states that there are 78 calories in a three fourths cup serving. What is the unit rate for calories per cup? How many calories are there in 2 cups of the cereal?

A triangle hss one angle mesuaring 3x degrees. A second angle mesures 2x + 20 degrees and the third angle measures 4x - 20 degrees. What is the value of x

The water level of a canal was 7 inches below sea level. It decreased 2 1/4 inches in January and 1 3/8 inches more in February. What is the canal's new water level in respect to sea level?

Which of the following statements about perpendicular lines is true? a. perpendicular lines have a constant distance between them. b. perpendicular lines intersect at a 90 degrees angle. c. there is no standard symbol for perpendicular lines. d.

If two angles of a triangle are complementary, then the triangle must be

Factorize completely the following algebra expression: 81x^4-16y^8

Use distributive property (-6 + 4v + 2u) (-4) solve

A ramp is built in the shape of a right triangleThe hypotenuse of the ramp is 17 ft and the length of one leg is 8 ft. What is the length of the other leg? A) 12ft B) 15 fr C) 14ft D) 13ft E) 16ft

Which of the following options represents a characteristic of an exponential equation? An exponent anywhere in the equation. A constant with an exponent on it. A variable raised to a power. An answer that can be written with an exponent.

Hayden bought some new T-shirts. They're normally priced at $22 however, they are now 44% off. How much did Hayden pay for the T-shirts.