Answer:
<em>n = 6 </em>
Step-by-step explanation:
2.3 × = (1 × 10³)(2.3 ×
)
(1 × 10³)(2.3 × ) = (1)(2.3) × (10³)(
) = 2.3 ×
2.3 × = 2.3 ×
⇒ 3 + n = 9 ⇒ <em>n = 6</em>
Work out 6 x £85.20 help please math homework for tomorrow!
1 answer:
You might be interested in
Answer:
Which function has an inverse that is also a function
Answer:
Heights of 29.5 and below could be a problem.
Step-by-step explanation:
Normal Probability Distribution
Problems of normal distributions can be solved using the z-score formula.
In a set with mean and standard deviation
, the z-score of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
The heights of 2-year-old children are normally distributed with a mean of 32 inches and a standard deviation of 1.5 inches.
This means that
There may be a problem when a child is in the top or bottom 5% of heights. Determine the heights of 2-year-old children that could be a problem.
Heights at the 5th percentile and below. The 5th percentile is X when Z has a p-value of 0.05, so X when Z = -1.645. Thus
Heights of 29.5 and below could be a problem.