Answer:
x= 28°
Step-by-step explanation:
180-118=62
62+90=152
180-152=28
BAM x=28°
Answer:
find below
Step-by-step explanation:
2x+9 < -19
2x < -28
x < -14
Answer:
-1 and 3
Step-by-step explanation:
The x intercepts are where the graph crosses the x axis.
Looking at the graph it crosses at two points
x = -1 and x=3
Answer:
6
Step-by-step explanation:
The overbar means the digit repeats indefinitely. The repeating decimal 0.333... is equivalent to 1/3, so this is the simple addition ...
3 2/3 + 2 1/3 = 5 3/3 = 6
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<em>Comment on the repeating decimal</em>
1/3 = 0.3333... repeating is one of the first decimal equivalents you learn.
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If you're into repeating decimals. you may have learned how to convert them to fractions:
x = 0.3333... repeating . . . . . . . give a name to the value
10x = 3.3333... repeating . . . . . multiply by 10^p where p is the number of digits in the repeating pattern
10x - x = 3.3333... - 0.3333... = 3 . . . . . subtract: the repeating portions cancel
9x = 3 . . . . . . . . . .simplify
x = 3/9 = 1/3 . . . . .divide by the x-coefficient; simplify
Answer: alternative C.
Step-by-step explanation: The samples chosen in surveys are often representative when taking the whole population in consideration. They <u>have to be chosen in a random way so they are representative and there's no bias playing a role in the results</u>. Therefore, the variance calculated on the samples are good estimations of the population variancies, since they represent the population in the best way possible.
