R=t/873.36-2.15, is this a linear model or nonlinear model

Mei draws three pairs of parallel lines that are each intersected by a third line. In each figure, she measures a pair of angles.

Consider the quadratic function y=x^2-4x-5. how many solutions does the equation have

Which of the following is NOT a true statement about square roots and cube​ roots? ​ (Suggested reading: page​ 667.) A. It is OK to take the square root of a negative number.

What is 5-3 1/4? / I need big brian to solve this

Solve by factoring or finding square roots. 6x^2+9=-55x

32 feet is what percent of 244 feet?

A restaurant served 85 halves of cantaloupe during a busy weekend. How many whole cantaloupes is this?

Erik's disabled sailboat is floating stationary 3 miles east and 2 miles north of Kingston. A ferry leaves Kingston heading toward Edmonds at 12 mph. Edmonds is 6 miles due east of Kingston. After 20 minutes, the ferry turns, heading due south.

Which of the following could be the measures of the three angles of an acute triangle? ... A ... 40°, 40°, 100° ... B ... 30°, 60°, 90° ... C ... 50°, 55°, 75° ... D ... 30°, 30°, 120°

Li rolls a 1-6 number cube and flips a coin. What is the probability that he rolls an en odd number and flips tails?