Answer:
Explanation:
The polynomial subtraction is:
The ruls to add or subtract polynomials is to add or subtract like terms.
LIke terms are the terms with the same variables each raised to the same power. So, the like terrms for those two polynomilas are:
- -6.7x² and -14.9x²,
- +2.3xy and -3.5xy,
- 5.2 and 7.1
The next step is to use the distributive property: you must distribute the subraction symbol before the parenthesis through every term inside the parenthesis. For this, remember the rule of the signs:
- When you multiply the negative sign before the parenthesis, the sign of each term inside the parenthesis will be changed (negative times positive = negative, negative times negative = positive)
So, the result is:
And that is ordered in descending powers of x (x² has order 2, xy has order 1 on each variable, and the constant terms have order 0).
Pi= 3.14
pi*d= 3.14*16
Circumference = 50.24
Answer:
<em>-5/4</em>
Step-by-step explanation:
7(x + 4) + 1x - 9 * 2 = -8x + -10
Distribute 7 on left side. Multiply 9 * 2 on left side.
7x + 28 + 1x - 18 = -8x + -10
Combine like terms on left side.
8x + 10 = -8x + -10
Add 8x to both sides. Subtract 10 from both sides.
16x = -20
Divide both sides by 16.
x = -20/16
Reduce the fraction.
x = -5/4
Answer: All i know is that b) is 15.
Struggling on A though.
Step-by-step explanation:
If we try to plot this on a graph, the credit score would be the x variable and the debt would be the y variable. This is because the amount of debt is dependent on the credit score. The slope formula is
or
. This is equal to
or ~ -22. Hope that helps.