Evaluate (15 – 4x) + 5 when x = 3. First, evaluate within the parentheses. Then evaluate exponents. Next multiply and divide from left to right. Then, add and subtract from left to right.

Complete the statements.

Substitute the given value for the
constant
.
Use the
operation
to simplify.
First, complete the
division
inside the parentheses.
Next, complete the
multiplication
inside the parentheses.
Last, complete the addition.

The value is
.

6x + 3y = -6 2x + y = -2 a. x = 0, y = -2 b. infinite solutions c. x = -1, y = 0 d. no solution

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.

Divide. –40 ÷ –5 a –8 b 200 c -200 d 8