Supplementary because the line equals 180°
(x-21)+x
2x-21=180
2x=201
×=100.5°
Answer:
3(x−2)(x+4)
Step-by-step explanation:
Dude its really hard to make a explanation. I recommend looking on math papa and typing in the question. Im sorry, but heres the answer.
Answer:
depends on what type of triangle it is but generally there are two formulas area of triangle is ½ × base × height and another one is heron's formula used for finding area of triangle it is applicable only when side of a triangle is given A =

Answer:
-12.5%
-14.29%
Step-by-step explanation:
For #2:
Original price is $2.00, that price decreased by $0.25 is $1.75. First figure out what $0.25 out of $2.00 is as a percent:
0.25/2.00 = 0.125 = 12.5%
Then, since the price DECREASED by $0.25, the percent would be negative.
For #4:
Original price is $3.50, that price decreased by $0.50 is $3.00. Like #2, you need to figure out what $0.50 out of $3.50 is as a percent:
0.50/3.50 = 0.1429 = 14.29%
Then, since the price DECREASED by $0.50, the percent would be negative.
Answer:13+3x=$
$=cost
Step-by-step explanation:
1. Add the starting money price (8$ and 5$)
2.Put x and 3 together.
Example:
13+(3 times 5 )------>13+15=28$
The cost would be 28$