Evaluate -(5)^2. Note that Order of Operations rules (PEMDAS) require that we perform exponentiation before multiplication.
Therefore, we evaluate 5^2 first, obtaining 25, and after that multiply this result by -1.
-(5)^2 = -25
Answer:
40%
Step-by-step explanation: 3 + 5 = 8 boys total 4 + 8 = 12 girls total 8 + 12 = 20 kids total. To find out the probability of randomly choosing a boy you have to do the number of boys over the total amount of kids (8/20) which will equal 40%.
Answer:
See the explanation bellow
Step-by-step explanation:
Given data
We are told that Mary earns $7.25 an hour
The function for her salary is s = 7.25h
<em>s is a function of h because h is the time, and s a dependent variable on the time, the longer she works the more money she makes</em>
Answer:
A
Step-by-step explanation:
Given
x² + 3x - 18
Consider the factors of the constant term (- 18) which sum to give the coefficient of the x- term (+ 3)
The factors are + 6 and - 3, since
6 × - 3 = - 18 and 6 - 3 = + 3, thus
x² + 3x - 18 = (x + 6)(x - 3) → A