On a math test the students are given a right triangle. One of the acute angles has a measure of 31°. One student says that the measure of the other acute angle is 149°. What is the measure of the other acute​ angle? What error might the student have​ made?

Step-by-step explanation:

Acute angles can't be over 90°

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)