Stepby-step explanation:
There is one very important exception to the rule that multiplying or dividing an inequality is the same as multiplying or dividing an equation. Whenever you multiply or divide an inequality by a negative number, you must flip the inequality sign.
Answer:
115
Step-by-step explanation:
because 6 & 7 will add up to 180
so if 7 = 65
then 180 - 65 = 115
#6 = 115
To solve the problem you must apply the proccedure shown below:
1. You have the following quadratic equation given in the problem:
<span>9x^2+2x-7=0
</span>
2. When you factor it, you obtain:
(9x-7)(x+1)=0
3. Then, you have that the roots of the quadratic equation are:
(9x-7)(x+1)=0
x1=7/9
x2=-1
Answer:
1) The solution of the system is
2) The solution of the system is
Step-by-step explanation:
1) To solve the system of equations
using the row reduction method you must:
Step 1: Write the augmented matrix of the system
Step 2: Swap rows 1 and 2
Step 3:
Step 4:
Step 5:
Step 6:
Step 7:
Step 8:
Step 9:
Step 10: Rewrite the system using the row reduced matrix:
2) To solve the system of equations
using the row reduction method you must:
Step 1:
Step 2:
Step 3:
Step 4:
Step 5:
Step 6:
Step 7:
Step 8:
Step 9:
Step 10:
Step 11: