Questões matemáticas

4) 3a - 4b (4 - 7a + 2b) + b

6) 3mn (m² + n² - m + 4n - 5)

8) (x + √5) ²

9) (4x + 2y) ²

10) (2w-1,6) ²

13) (x+11) (x+18)

15) (x+4,7) (x+3,25)

Considere x=-4, y=48 e z=2,7

17) 2x-y+3z

18) xz+1,57

20) x³+2x²-4x

what % of 400 = 193

A new pencil was 18 cm long. Now it measures 12.7 cm. How many centimeters of the pencil have been used?

What is the maximum possible value of 13.7

All lines measure exactly 150?

How do you solve a quadratic formula

The GCF of the numbers in the expression (32 + 16) is

Which of the following is a property of translations that is not also a property of other types of rigid motions?

Paola is planning her summer vacation. She wants to buy maps and atlases to use in her planning. The maps cost $3.00 and the atlases cost $7.00 each. If she spends $43.00 what combination of maps and atlases can she buy?

What is the coefficient in the expression 10x^-7? A.) 2 B.) 10 C.) 7 D.) x

75% of 84 is what number