Answer:
-a^2 - a + 12
Step-by-step explanation:
You only need to find the products of the first and last terms to determine the correct answer:
(-a)(a) = -a^2
(3)(4) = 12
You're looking for an expression with -1 as the leading coefficient and +12 as the constant. There is only one choice like that:
-a^2 - a + 12
Percent problems can be solved by writing equations. An equation uses an equal sign (= ) to show that two mathematical expressions have the same value. Percents are fractions, and just like fractions, when finding a percent (or fraction, or portion) of another amount, you multiply. ... Percent of the Base is the Amount.
A number increased by nine (n + 9) is the same as nine increased by a number (9 + n), the correct option is C.
<h3>What is the pharse in mathematics?</h3>
A mathematical phrase is a set of words or a combination of words and numbers that can be written as a mathematical expression.
Given
Jillian was asked to translate the expression 9 + n into words.
She wrote "a number increased by nine.
The expresion can be written into the two formate which is;
(n+9) and (9+n)
Hence, a number increased by nine (n + 9) is the same as nine increased by a number (9 + n), the correct option is C.
To know more baout pharse click the link given below.
brainly.com/question/22314482
Answer: 720 contains
Step-by-step explanation:If each month you have 5 out of 8 boxes then you should multiply 144 of the envelopes by 5 boxes that are each month
(-4) to the 4th power is 256
-4 to the 9th power is 262144