Answer:
Correct choice is C). mn=ac
Step-by-step explanation:
Given statement is that the first step in factoring a trinomial of the form is to find two numbers, m and n, such that m + n = b and _____.
We know that when we factor polynomial of type ,product of both numbers m and n must be same as product of a and c.
Hence correct choice is C). mn=ac
First add -2 and -6 together
Since these are both negitive signs you will add normally and and a negitive sign to the answer
-8
so you have...
-8 + 7
Since there is a negative (-8) and a positive (7) you will treat this as a normal subtraction problem, except your answer will have the sign of the biggest number
8 - 7 = 1
8 is the bigger number and has a negative sign therefore the answer is a negative number
so...
-8 + 7 = -1
-1
Hope this helped!
~Just a girl in love with Shawn Mendes
Answer:
Step-by-step explanation:
170 + 238 =408
572 + 279 =851
395 + 123 =518
628 + 229 =857
3/50 of a mile per hour
A unit rate in this problem is 1 hour. The easiest way I see to do this is to multiply both sides of the rate by 3, getting that the turtle can go 3/25 of a mile every 2 hours, then dividing by two, getting that the turtle can go 3/50 of a mile each hour.
Hope it helps <3
Answer: The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try!