An algebra i test contains 40 questions. some of the questions are worth 4 points each, and some are worth 2 points each. the total test is worth 100 points. let f represent the number of questions worth 4 points and t, the number of questions worth 2 points. solve the system by elimination to find the number of four-point questions on the test.

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato

Manuela claims that and are congruent. which statement best describes her claim? she is incorrect because the segments do not have the same orientation. she is incorrect because the segments do not have the same length. she is correct because the segments have the same length. she is correct because the segments have the same orientation.

Math i have no idea how to do a and b