Supposed x is the number of pages she read on Sunday night. Then 2x will be the number of pages she read on Saturday night. The total number of pages she read is 78.
So 78 = 2x + x
78 = 3x
x = 26.
The number of pages she read on Sunday night is 26.
Answer:
False
35/144 in reduced form is 35/144, so this statement is incorrect.
Answer:
Step-by-step explanation:
Cos(61) = 0.4848
This is more or less the value of cos(60) which is 1/2
You know you are in trouble when a question says approximately. How approximate is approximately. My guess, and it is a guess, is that this means the nearest degree. That would be 14 degrees. The more exact answer is 13.80 and that zero matters. It is a place holder.
Sin(67) = 0.9205 Again, how approximate is approximate? Try 0.92 as your answer.
Tan (18) = 0.3249 Try tan(18) = 0.3
Well, there's:
7 * 2 =14
and
7 * 3 = 21
Both of these have only the factor 7 in common. Therefore, it is the greatest factor. You can use any combination of numbers that have a factor of 7 and only 7 in common.
Standard the random variable
using the transformation
where
and
are the mean and standard deviation of
, respectively.
Now, you can recall that for any normal distribution, approximately 95% of its data falls within 2 standard deviations of the mean, so to either side, there is approximately 2.5% of data that falls below 2 standard deviations from the mean, and 2.5% that falls
above
. In other words,
.