Answer:
a: AB is perpendicular to CD
b: AM is equal in length to BM
Answer: x=7
Step-by-step explanation:
Simplifying
8 + 2x = 6x + -20
Reorder the terms:
8 + 2x = -20 + 6x
Solving
8 + 2x = -20 + 6x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-6x' to each side of the equation.
8 + 2x + -6x = -20 + 6x + -6x
Combine like terms: 2x + -6x = -4x
8 + -4x = -20 + 6x + -6x
Combine like terms: 6x + -6x = 0
8 + -4x = -20 + 0
8 + -4x = -20
Add '-8' to each side of the equation.
8 + -8 + -4x = -20 + -8
Combine like terms: 8 + -8 = 0
0 + -4x = -20 + -8
-4x = -20 + -8
Combine like terms: -20 + -8 = -28
-4x = -28
Divide each side by '-4'.
x = 7
Simplifying
x = 7
Answer:
1)6.32
2)12.80
3)13
Step-by-step explanation:
1)
2)
3)
Answer:
A B AND C SQUERA
Step-by-step explanation:
Answer:
A = 502 * e^-(.033 * 68) amount left after 68 rears
A = 502 e^-2.244 = 53.2 grams after 68 years
A2 = 502 e^-(.033 * T) = 251 where T is time for 1 half-life
ln (1/2) = -(.033 * T)
T = -.693 / -.033 = 21.0 years for the half-life
