Answer:
fx) = 
Step-by-step explanation:
1. step:
solve the bracket
fx) = 3(
- 1) 2 + 5
2. step:
use the BEDMAS form.
fx) = 
fx) =
Answer:
he saved $25
Step-by-step explanation:
The answer is 25 because 15 multiplied by 5 is 75 and 5 multiplied by 5 is 25.
Answer:
16.5
Step-by-step explanation:
Probably the easiest way to do this is to use synthetic division. We already know one of the zeros of the quadratic so we can use that number to find the other zero. If the point is (4, 0), then when y = 0, x = 4. Thus, 4 is a zero. Put 4 outside the "box" and put the coefficients from the quadratic inside, like this: 4 (1 -1 -12). Draw a line and bring down the first one under it. Multiply that 1 by the 4 to get 4. Put that 4 up under the -1 and add to get 3. Multiply 3 by 4 to get 12. Put that 12 up under the -12 and add to get 0. The numbers left under the line are the coefficients for the next polynomial, called the depressed polynomial, and this polyomial is one degree less than the one we started with. Those coefficients are 1 and 3. Therefore, the polynomial is x + 3 = 0. That means that the other zero, or x-intercept, is x = -3.
Answer: 15 yards
Step-by-step explanation:
From the question, we are given the information that Lucia has 18 pieces of ribbon that she uses to decorate presents and that the length of one ribbon is 5/6 of a yard.
Therefore, the number of yards of ribbon that Lucia has will be gotten by multiplying 5/6 by the total pieces of ribbon. This will be:
= 5/6 × 18
= 15 yards
