Step-by-step explanation:
A is excluded because in the second() x² should be negative
B is excluded because if you solve it -(-x² give you + x²
C is excluded because in the second() 2x and 1 should be negative
so D is right
3 100 hundred bills 4 ten dollar bills and 2 one dollar bills
Answer:
x = 21
Step-by-step explanation:
7 x 3 = 21
Answer: x > 74
<u>Step-by-step explanation:</u>
An obtuse angle is greater than 180°. So, 3x - 42 must be greater than 180.
- 3x - 42 > 180
- <u> +42 +42</u>
- 3x > 222
- <u>÷3 ÷3</u>
- x > 74