Answer:
p - 0.05p
Step-by-step explanation:
The price of the car is p.
You must subtract from p the amount of 5% of p.
5% of p = 5% * p = 0.05p
5% of p is the same as 0.05p.
Now we subtract 0.05p from p.
p - 0.05p
3x² - 21
Factor 3 from both terms:
3 (x² - 7)
To me, that's as far as you should need to go. But if you want to get
completely carried away, you could go one step further, since you have
the difference of two squares:
3 (x + √7) (x - √7)
Of course, there's no end now, because the last binomial could be
considered another difference of two squares, so you'd have to
factor that too:
3 (x + √7) (√x + ⁴√7) (√x - ⁴√7)
but to me, this would be nonsense.
C. 5/6
30 people with soda + 45 people with lemonade = 75/90 people
simplifies to 5/6.
Answer:
45°
Step-by-step explanation:
Angles on a straight line add up to 180°.
135 + x = 180
x = 180 - 135
x = <u>45°</u>
