The answer (usually called the 'solution') is the one and only number that 'n' can be if that equation is a true statement. Here's a suggestion of a procedure you can use to find it:
<u>1.8 + 7n = 9.5 - 4n</u>
Add 4n to each side: 1.8 + 11n = 9.5
Subtract 1.8 from each side: 11n = 7.7
Divide each side by 11 : <em> n = 0.7</em>
Answer:
The expression x² + 8x + 7 can be factored out as (x + 7)(x + 1).
Step-by-step explanation:
You can see how this factors by looking at the last term, and the coefficient of the second term. You need to find two numbers that multiply to make seven, and add to make eight.
Because seven is a prime number, this becomes very easy. If this works at all, the numbers must be seven and one.
And lo, if you check, seven and one do indeed add up to be eight, so that's what we need to use. Let's do it:
x² + 8x + 7
= x² + x + 7x + 7
= x(x + 1) + 7(x + 1)
= (x + 7)(x + 1)
Answer:
6
Step-by-step explanation:
Your function is split into 4 parts.
We want to use the piece that includes x=6.
This only included in the inequality that says x is greater than or equal to 5. Since that is, we use the expression that corresponds to that to find f(6).
f(6)=2(6)-6
f(6)=12-6
f(6)=6
Answer:
284/15 18.93 maybe this is the answer
