180 - 85 = 95
180 - 145 = 35
A = 180 - 95 - 35
A = 50
answer
<span>50°</span>
Answer:
17/15 or 1 2/15
Step-by-step explanation:
Squrae has 4 sides of equal legnth
perimiter=legnth of all sides added together or distance around (peri=around, meter=measure)
so 4 sides
each side is equal
1 sides=5.6
perimiter=5.6 times 4=22.4 cm is answer
Answer:
1. A resposta é a opção C.
2. ( a +b )² = a² + 2ab + b² Verdade
( a - b )² = a² - 2ab + b² Verdade
( a + b ) .( a – b) = a² + b² Falso
( a +b)³ = a³ + 3a²b + 3ab² + b³ Verdade
( a -b)³ = a³ - 3a²b + 3ab² - b³ Verdade
3. a.) m² - 14am + 49a² = ( m - 7a)²
b) m2 – 9n² = m² - (3n)² = (m + 3n)(m - 3n)
c) 30+ 5xy + 12a +2axy = (6 + xy)(5 + 2a)
d) 8a²b + 10ab² = 2ab( 4a + 5b)
Espero que isso ajude você
Answer:
100/5-4
Step-by-step explanation:
He spend 100 total, and he spend $5 on each book. So 100/5 would give him how many books total that he bought. If he bought 4 extra you need to subtract that to find out how many books he originally wanted to buy.