When multiplying integers that include negative factors the product is always negative.
negative x positive = negative
Answer:
4th option
Step-by-step explanation:
The given expression is:
In order to simplify this expression we have to multiply and divide it with the conjugate of the denominator i.e multiply and divide the entire expression with , as shown below:
Thus, 4th option gives the correct answer.
Answer:
7/10 or 0.7
Step-by-step explanation:
a probability is always the ratio of possible cases over all cases.
"all cases" here is 100.
possible cases are all iPads not cracked in the inventory = 70 (because 30 are cracked, that leaves 100-30=70 not cracked).
so, the probability to select a non-cracked unit is
70/100 or simplified 7/10 (or 0.7)
2*8+7=23..........................