Answer:
3) 
4) a) 
b) 
Step-by-step explanation:
<u>Exercise 3</u>
<u>Exercise 4</u>
a) If L2 is parallel to L1, it has the same slope (gradient) ⇒ 
If L2 passes through point (3, 1):
So L2 = L1
b) If L3 is perpendicular to L1, then the slope of L3 is the negative reciprocals of the slope of L1 ⇒ 
If L3 passes through point (-5, 2):
Answer:
DIVIDING 9 AND 5 = 23.8
9/5 FRACTION = 0.04
Step-by-step explanation:
If 9/5 means 9 divided by 5
FLIP THE EQUATION
9/5C + 32 = 75
9/5C + 32 - 32 = 75 -32
9/5C = 43
9/5 = 1.8
1.8C = 43
1.8C/1.8 = 4
If 9/5 means 9/5ths fraction
FLIP THE EQUATION
9/5C + 32 = 75
9/5C + 32 - 32 = 75 -32
9/5C = 43
9/5C / 9/5 = 43 / 9/5
C = 0.04
Hope this helps i thought 9/5 was 9 divide by 5. If it was 9/5 as a fraction i also made that equation too.
6 1/12 - 4 2/3
6 1/12 - 4 8/12
5 13/12 - 4 8/12
1 5/12
Remark
The key step is just to subtract 5 from both sides. The pointed of the inequality still points away from the variable and towards the number. As long as that remains true, the correct answer can be found.
Solution
2.7 ≤ b + 5 Subtract 5 from both sides.
2.7 - 5 ≤ b
- 2.3 ≤ b Write with the variable on the left.
b ≥ - 2.3 <<<< answer
The angstrom<span>, also known as the </span>angstrom<span> unit, is a measure of displacement equal to 0.0000000001 meter (10 -10 m). It would be helpful to convert the units of angstrom to mm. We do as follows:
diameter = 2 x 1.35 x10^ -10 m ( 1000 mm / 1 m ) = 2.7 x 10^-10 mm / atom
Number of gold atoms = 8.5 mm / </span>2.7 x 10^-10 mm / atom = 31481481481.481 atoms
