Answer:
C. $3
Step-by-step explanation:
10% of $23.47 is 2.347. Just move the decimal over to the left one place and round up to get the closes dollar amount. Since the 4 is followed by a 7, which is greater than 5, the closest dollar amount would be $2.35. $2.35 is closer to $3 than it is to $1 so to tip the closest to 10%, you would tip $3.
Upon formation of an equation from a given pattern, we know how the variables in the patter are related. Using the equation, we can find the value of one of the missing variables if the rest are known and also predict the values of the pattern at given conditions.
An example:
y = 2x + 5
if we are to predict the value of y at x = 3, we simply substitute 3 into x
y = 2(3) + 5
= 11
The statements look all false:
- A linear function can have constant terms, which is the b coefficient in the expression y=mx+b. For example, y=3x+5 has a constant term 5
- A linear function has a x term. In the same example as before, 3x is the x term
- The coefficients can be different from 1. In the example before, the x coefficient is 3 and the constant term is 5.
- This looks like option b. Maybe there was a typo, and either b or d must be true.
<em>f(-4) = 13</em>
- <em>Step-by-step explanation:</em>
<em>Hi there ! </em>
<em>f(x) = 0.5x + 15</em>
<em>replace x = - 4</em>
<em>f(-4) = 0.5×(-4) + 15</em>
<em>= - 2 + 15</em>
<em>= 15 - 2</em>
<em>= 13</em>
<em>Good luck !</em>
