Answer:
the number is -6 (assuming "3 lots of" means 3 times)
Step-by-step explanation:
Let the number be x
1 less than a doubled number
2x-1
5 more than 3 lots of (times???) the number
3x+5
Solve for x
2x-1 = 3x + 5
-x = 5+1
x = -6
The sum of the angles of an n-sided polygon is (n-2)×180°
For a 30-gon, it would be 28x180 = 5040, answer B
Second question is more of a trick question. Exterior angles always add up to 360. So answer H.
Answer:
Sorry have no idea what this means...just dumb.
Step-by-step explanation:
Answer:
p > 0
Step-by-step explanation:
x² = p
x² - p = 0
A = 1, B = 0, C = -p
For 2 real roots:
B² - 4AC > 0
0² - 4(1)(-p) > 0
4p > 0
p > 0
Answer: Can you take a more clear picture
Step-by-step explanation: