Answer:

Step-by-step explanation:
Substitute the values for a and c into the expression
- 2c + a
= - 2×
+ 
= -
+ 
= -
+ 
= -
+ 
= 
Answer:
38
Step-by-step explanation:
38of 502bhfghggiggjgfhhffj
The answer is: No, because we also need to know the type of proportionality
In mathematics, we talk about proportionality when two variables are related and this relationship is that there is a constant ratio between them. There are two types of proportionality.
1. Direct Proportionality:
If there are two variables x and y, we can write the relationship between them as follows:

So, by substituting the point in this equation we have that the constant of proportionality is:

2. Inverse Proportionality:
In this case, the relationship is:

So, the constant of proportionality is:

As you can see, we have found two different values of the constant of proportionality. So, it is necessary to know the type of proportionality.
Answer:
none of your options are right
Step-by-step explanation:
<h2>Three less than seven times a number:</h2>
<u><em>three : 3, less than : (-), seven : 7, times : (multiplication symbol), a number : (x)</em></u>
<u><em>the answer is : 3 - 7 (x)</em></u>
<u><em>: 3-7x</em></u>
<span>f(x) = ax2+bx+c, is quadratic equation
</span><span>function opening downward if the a<0,
</span><span>kf(x) = -x², a= -1<0
so the answer is </span><span>B.kf(x) </span><span>
</span>