Somebody please help!! pleaseeee

Mathematics

2 answers:

Stolb23 [73]3 years ago

4 0

D...................

Charra [1.4K]3 years ago

4 0

Answer:

Your answer is D 4&8

Step-by-step explanation:

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PLEASE HELP ME!!! Ms. Jones wants to install a stone border along the flower bed in her rectangular backyard. Which is closest t

Nataly_w [17]

Answer:

use Pythagoras theorem formula $C^{2}$ = $A^{2}$ + $B^{2}$

Step-by-step explanation:

$C^{2}$ = $24^{2}$ + $18^{2}$

$C^{2}$ = 576 + 324

$C^{2}$ = 900

C = $\sqrt{900}$

C = 30

Does that make sense? :|

3 0

3 years ago

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:

$\mu = 8.59, \sigma = 0.63$