Okay can someone explain this?

Mathematics

1 answer:

Semmy [17]2 years ago

8 0

Answer:

see below

Step-by-step explanation:

90 degree clockwise will change x, y coordinates to y, -x

point D 1,3 becomes 3,-1

point E 4, 4 becomes 4,-4

point F 4, -2 becomes -2,-4

point G 1,-1 becomes -1, -1

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How to simplify 3 1/4 times 2 1/2 - 1 1/3. Pls show your how you solved it pls, thx

Virty [35]

$3 \frac{1}{4} \times 2 \frac{1}{2} - 1 \frac{1}{3}$

$\frac{13}{4} \times ( \frac{5}{2} - \frac{4}{3} )$

$\frac{13}{4} \times ( \frac{15}{6} - \frac{8}{6} )$

$\frac{13}{4} \times \frac{7}{6}$

$\frac{91}{24}$

$3 \frac{19}{24}$

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3 years ago

*NEED HELP ASAP* What’s the value of X?

-BARSIC- [3]

Answer:

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Step-by-step explanation:

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4 years ago

The systolic blood pressure (BP) of adults in the USA is nearly normally distributed with a mean of 121 and standard deviation o

Wittaler [7]

Answer:

Around 0.73% of adults in the USA have stage 2 high blood pressure

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

Mean of 121 and standard deviation of 16.

This means that $\mu = 121, \sigma = 16$