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3 years ago

I need help with this problem ASAP

Mathematics

1 answer:

Anna [14]3 years ago

7 0

Answer:

$x^2\sqrt{x+5} -2\sqrt{x+5}$

Step-by-step explanation:

use foil

$x^2\sqrt{x+5} -2\sqrt{x+5}$

cannot be simplified any further so it's the answer

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Step-by-step explanation:

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3 years ago

Please help? <3 thank you

Effectus [21]

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3 years ago

Read 2 more answers

The thumb length of fully grown females of a certain type of frog is normally distributed with a mean of 8.59 mm and a standard

PilotLPTM [1.2K]

Answer:

21.77% probability that a randomly selected frog of this type has thumb length longer than 9.08 mm.

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:

$\mu = 8.59, \sigma = 0.63$