What is 5 + 2^3 divided by 4 - 2

Mathematics

2 answers:

V125BC [204]3 years ago

5 0

Answer:

Step-by-step explanation:

5+ $2^{3}$ /4-2

$2^{3}$ = 2 x 2 x 2 (12)

5+ 12 / 4-2

5 + 3 - 2

Mariana [72]3 years ago

3 0

Answer:

6.5 or 13/2

Step-by-step explanation:

$\frac{5 + {2}^3{} }{4 - 2}$

First find what 2^3 power is.

$\frac{5 + 8}{4 - 2}$

Then, just add the top and bottom

$\frac{13}{2}$

This in decimal form is 6.5

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The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 330 grams and a standard deviati

just olya [345]

Answer:

Weights of at least 340.1 are in the highest 20%.

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:

$\mu = 330, \sigma = 12$