Factored by grouping
(3a - 7) (a + 1)
The answer fam is<span>Part A: Company A: y=30x+13 Company B: y=28x+15 </span>
<span>X: number of mattresses </span>
<span>Y: total cost </span>
<span>Part B: </span>
<span>Company A: 30(4)+13= 133 Company B: 28(4)+15= 127 </span>
<span>Company B cost less than Company A does when you purchase 4 mattresses </span>
<span>Part C: </span>
<span>Company A: 30(7)+13= 223 </span>
<span>Company B: 28(7)+15= 211 </span>
<span>You save $12 by using the services of Company B instead of Company A to clean 7 mattresses</span>
A negative number raised to a certain power is equal to an undefined value. In this case, the goal of the have x equal to -k and numbers greater than it. Hence the domain includes k and numbers to infinity. The minimum value of the range is negative infinity up to a value where the first term is zero or range equal to c.Hence the answer is B. The domain is [-k,∞) & the range is (-∞,c].
Answer:
corresponding angles
Step-by-step explanation:
Answer:
A. The student earned $18 for cleaning out his neighbor's garage.
Step-by-step explanation:
<em>Since it given that a student spend $18 for a haircut this week also means that she/he gave away $18 also known as -$18.</em>
<em>Thus, base on the given answer choices:</em>
<em>[A] is the only one that can make it positive.</em>
<em>Going through all answer choice:</em>
<em>A. The student earned $18 for cleaning out his neighbor's garage.</em>
<em>Earned = +</em>
<em>B. The student paid his little brother $18 for doing his chores.</em>
<em>Paid = -</em>
<em>C. The student purchased a gift for his mom for $18.</em>
<em>Purchased = -</em>
<em>D. The student gave $18 to a friend.</em>
<em>Gave = -</em>
<em>Hence, Answer is A. The student earned $18 for cleaning out his neighbor's garage.</em>
<u><em>~lenvy~</em></u>
