Graph the inequality on a number line. Then write the solution using interval notation.x < 4
A. (-?, 4]
B. [4, ?)
C. (-?, 4)
D. (4, ?)
Answer: C
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Solve the problem.A traffic counter consists of a thin black tube stretched across a street or highway and connected to a "brain box" at the side of the road. The device registers one "count" each time a set of wheels (that is, wheels on a single axle) rolls over the tube. A normal automobile (two axles) registers two counts, and a light truck (three axles) registers three counts. Suppose that, during a one-hour period, a particular counter registers 41 counts on a residential street on which only two-axle vehicles (cars) and three-axle vehicles (light trucks) are allowed. How many cars and light trucks passed over the traffic counter? Find all the possible solutions to the problem.
What will be an ideal response?
Write the number in standard form.One millimeter is equal to 1 × 10-6 kilometers.
A. 1,000,000 B. 0.00001 C. 0.000001 D. 0.0000001
Solve. If necessary, round to the nearest tenth.If a flagpole 15 feet tall casts a shadow that is 20 feet long, find the length of the shadow cast by an antenna which is 27 feet tall.
A. 36 ft B. 20.3 ft C. 32 ft D. 11.1 ft
Evaluate the expression.(f ? g)(-5) when f(x) = -2x - 2 and g(x) = -6x2 - 4x - 5.
A. 268 B. -421 C. -92 D. -85