Answer:
19. 83/8
20. A rational number is a number that can be express as the ratio of two integers. A number that cannot be expressed that way is irrational. Any number that can be written in fraction form is a rational number. This includes integers, terminating decimals, and repeating decimals as well as fractions. An integer can be written as a fraction simply by giving it a denominator of one, so any integer is a rational number.
Step-by-step explanation:
19. 2 1/2 + 3 1/8 + 4 3/4 = 83/8 or 10.375 or 10 3/8
20. A rational number is a number that can be express as the ratio of two integers. A number that cannot be expressed that way is irrational. Your answer for 19 is rational
Answer:
hi, it's b because a+b is 180°
9514 1404 393
Answer:
x = 4
Step-by-step explanation:
The measures of all angles in this geometry are 90 degrees.
21x +6 = 90
21x = 84 . . . . . subtract 6
x = 4 . . . . . . . divide by 21
Answer:
216
Step-by-step explanation:
A=2(wl+hl+hw)=2·(12·2+6·2+6·12)=216
