Answer:
E. a = 2
Step-by-step explanation:
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The question is asking for what the value of a is for the given polynomial.
They gave you a factor to that polynomial, (x+a), and told you that a can be any real number beside 0.
You might remember that when you factor an equation, all you're doing is finding for what value of x will give you an answer of 0.
This is what you're doing now but in reverse. You're given x+a as a factor, so you know that x=-a will make the function equal 0.
So plug x=-a into the function and solve for a. You'd find that you get a=0 and a=2; however, the question stated that a≠0, so the only answer left is a=2.
Answer:
x = 4
y = 13
Step-by-step explanation:
x + y = 17
y = 2x + 5
substitute for y:
x + (2x + 5) = 17
reduce:
3x + 5 = 17
subtract 5 from each side:
3x = 12
divide both sides by 3:
x = 4
y = 2(4) + 5
y = 13
Answer:
2 miles in 8 minutes
4 miles in 16 minutes
8 miles in 32 minutes
16 miles in 64 minutes
Step-by-step explanation:
Answer: The required function is,
Step-by-step explanation:
According to the question,
The sales tax t on the amount of taxable goods is 6% of the value of the goods purchased x,
⇒
⇒
⇒
Which is the required function.
The profit loss for 2009 is -$0.50