Answer:
- <u>x = -0.5 , x = -5.5</u>
Step-by-step explanation:
<u>Solving</u>
- -4x² = 24x + 11
- 4x² + 24x + 11 = 0
- 4x² + 24x + 36 - 36 + 11 = 0
- (2x + 6)² - 25 = 0
- (2x + 6)² = 25
- ⇒ 2x + 6 = ±5
<u>Case 1 : x = +5</u>
- 2x + 6 = 5
- 2x = -1
- x = -1/2
- <u>x = -0.5</u>
<u></u>
<u>Case 2 : x = -5</u>
- 2x + 6 = -5
- 2x = -11
- x = -11/2
- <u>x = -5.5</u>
0.5007 this is the decimal
Answer:
28
Step-by-step explanation:
If <EGF = <EFG, the angles should be the same: 28.
Chips Defective Chips
Al chips 4 %
Total production per day 50.999 4 %
Randon sample sold 100 4 %
% defectives should be = % total production
Defectives expected in sample is 4% of 100 = 4 x 100 / 100 = 4
Chance of 2 defective chips 1
Answer:
19250
Step-by-step explanation:
2750*7=19250