Plz help me with 52 a and b

Mathematics

2 answers:

statuscvo [17]3 years ago

6 0

Area rectangle=length times height
area triangle=1/2 times base times height

so
rectnalge=6 by9 or 54 square cm

triangle=1/2 times 8 times h=4h

same area
54=4h
diivde by 4 both sides
13.5=h
or
27/2=h

a. 54
b. 27/2 or 13.5 (same thing)

8090 [49]3 years ago

4 0

A equals 54
im thinking b equals 12 but i could be wrong
a is right though

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Answer:

The cutoff sales level is 10.7436 millions of dollars

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

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 pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 12, \sigma = 1.2$