When the sun is at a certain angle in the sky, a 50-foot building will cast a -foot shadow. What is the length of the shadow in feet cast by a 20 -foot pole at the same time? Enter only the number.

Given the function f(x) = 3x + 1, evaluate f(a + 1). a. 3a + 1 b. a + 2 c. 3a + 4

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?