Probability that the questions are answered corectly1/4 = 0.25
probability that they are answered wrong 3/4 = 0.75
probability that 4 out of 7 are corect 7C4(0.25)4(0.75)3 which equals 0.0577
Answer: 1.47 * 10^8
Step-by-step explanation:
First, let's add in standard form to avoid confusion
130,000,000
+17,000,000
------------------------
147,000,000
Since scientific notation expects the 1st base to be greater than 1 but less than 10, 147,000,000's first base in SCI notation should be 1.47.
Now to complete: 1.47 * 10^8
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Answer:
17.5 + 15.5
Step-by-step explanation:
17+ 15 = 32
.5 + .5 = 1
32 + 1 = 33
Answer:
The answer is c>_ 2
