Answer:
r=2.5x
Step-by-step explanation:
Answer:
ecall that 6 + 6 + 6 = 6 × 3
Instead of adding 6 three times, you can multiply 6 by 3 and get 18, the same answer.
Similarl
2 + 2 + 2 + 2 = 2 × 4
Answer:
The final net price of a designer swimsuit is 
Step-by-step explanation:
Let
x-----> the final net price of a designer swimsuit
we know that
![x=\$85[1-\frac{25}{60}]](https://tex.z-dn.net/?f=x%3D%5C%2485%5B1-%5Cfrac%7B25%7D%7B60%7D%5D)
![x=\$85[\frac{35}{60}]](https://tex.z-dn.net/?f=x%3D%5C%2485%5B%5Cfrac%7B35%7D%7B60%7D%5D)
You can do synthetic division twice immediately (or once if you know how to handle x^2 - 25 all at once. I'll use 2 divisions. x^2 - 25 is (x + 5)(x - 5). Both of them are zeros to the given equation which means that x = +5 and
x = - 5 are both zeros of the given quartic.
5 1 -2 -33 50 200
5 15 -90 -200
=====================================
1 3 -18 -40 0
What you have now is x^3 + 3x^2 - 18x - 40 = 0
Do another synthetic division
-5 1 3 -18 -40
-5 10 40
============================
1 -2 -8 0
The result is
x^2 - 2x - 8 = 0 which factors.
(x + 2)(x - 4) = 0
Answer
The factors are (x + 2)(x - 4)(x + 5)(x - 5) = 0
Long division
x^2 + 0 + 25 ||x^4 - 2x^3 - 33x^2 + 50x + 200 ||x^2 - 2x - 8
x^4 + 0 + 25x^2
==================
-2x^3 -8x^2 + 50x
-2x^3 + 0 + 50x
=================
-8x^2 + 0 +200
-8x^2 + 0 + 200
==================
0
Answer:
the amount spend on the ribbon is $51
Step-by-step explanation:
The computation of the amount spend on the ribbon is shown below:
= Total ribbons bought × ribbon cost per meter
= 17 × $3
= $51
Hence, the amount spend on the ribbon is $51
