Answer:
the answer is B) 12a+6b
Step-by-step explanation:
3+9=12 so 3a+9a=12a,
7-1=6 so 7b-(1)b=6b
There are like terms in this problem. It looks scary but if we combine our like terms it makes it a lot easier. Also, like terms are terms with the same variables that are at the same power.
So add 7a^2 and -3a^2
You'll get the following sum:
4a^2
Add -17a and 2a
You'll get the following sum:
-15a
So our new problem looks like this:
4a^2 - 15a = 0
Factor out the variable "a." Leaving you with this:
We can rewrite the problem like this:
4a^2 - 15a + 0 = 0
Now we can use the quadratic equation!
Where +/- is simply the add or divide symbol. Now let's plug in our numbers!
Simplifying a bit you get the following function:
sqrt(225) = 15
15 + 15 = 30
30 / 8 = 15/4
15 - 15 = 0
0 / 8 = 0
Your two answers are:
15/4 and 0
The linear function that describe the situation is; 3730 = 900 + 370x.
<h3>What are independent and dependent variables?</h3>
If a variable is taking its values independently of any visible direct cause, then that variable is called independent variable.
The variables who take their values based on some other variables' values are called dependent variables.
Given; The cost of leasing a car is $900 for the down payment and processing fee plus $370 per month.
We need to find For how many months can you lease the car with $3730.
Let x be the months.
The equation for the linear function;
3730 = 900 + 370x
Therefore, the linear function that describe the situation is; 3730 = 900 + 370x.
Learn more about equations here;
brainly.com/question/10413253
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Answer:
a. 5 loaves, b. 14 loaves
Step-by-step explanation:
a.8.50=2.50+1.20x
6.00=1.20x
5=x
5 loaves
b.20=2.50+1.20x
17.50=1.20x
14.6=x
14 loaves
a)
value of y is decreasing
b) value of y is decreasing
c) because at x = 5 denominator becomes 0 and divide by 0 not allowed so showing ERROR