Answer:
Step-by-step explanation:
we know that
<u><em>Combinations</em></u> are a way to calculate the total outcomes of an event where order of the outcomes does not matter.
To calculate combinations, we will use the formula
where
n represents the total number of items
r represents the number of items being chosen at a time.
In this problem
substitute
simplify
Answer:
12.42 -(-4.8) = 17.22
Step-by-step explanation:
1. The most important thing to note is the double negative signs, separated by the paranthesis. When 2 signs, numbers, variable, etc... are separated by a ( ) or simply beside each other, such as 2x or 4(6), you would multiply the 2 numbers.
2. In this equation, note that the negative sign is directly beside the (4.8):
(-)(-4.8) This means that you would multiply the negative sign or -1 by the -4,8. Remember multiplication rules with signs: a negative (-) number x a negative (-) number = a POSITIVE number.
3. Therefore, (-)(-4.8) is looking at the problem as (-) x (-4.8) = +4.8.
4. Note that at this point, the equation becomes an addition problem:
12.42 + 4.8 = x
5. Use your calculator to solve or the CORRECT way of simply lining up the decimals, and, there's your answer:
12.42 + 4.8 = 17.22
Answer:
B. Faelyn should realize that her work shows that the polynomial is prime
Step-by-step explanation:
The polynomial 6x⁴ – 8x² + 3x² + 4 needs to be factored and the steps are:
Step 1: (6x⁴ – 8x²) + (3x² + 4)
Step 2: 2x²(3x² – 4) + 1(3x² + 4)
Since they do not have a common factor, Faelyn should realize that her work shows that the polynomial is prime. A prime polynomial cannot be factored further because it is at its lowest common term and cannot be factored into any other polynomial of a lower degree. Prime polynomials have integer coefficients. A prime polynomial is also referred to as an irreducible polynomial.
(2,2) would be your answer. solve for the first variable in one of the equations , then substitute the result into the other equation! i hope this helps :)