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3 years ago

A recent survey found that 80% of jeans have back pockets, 65% have front pockets, and 48% have both back and

Mathematics

1 answer:

OlgaM077 [116]3 years ago

5 0

Answer:

.52

Step-by-step explanation:

its only a little bit over a 50% chance to get a front pocketed jean, then to also have back pockets is under 50% chance so when you even those it comes to .52

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If the triangles are congruent, then X=?

steposvetlana [31]

Answer:

Hi there!

The correct answer to this question is: x=3

Step-by-step explanation:

because these two triangles are similar, that means the hypotenuse are similar. which means you can set the sides equal to each other like this:

13 = 4x + 1 minus one on both sides and you should get 4x = 12 and then divide 4 on both sides and you should finally get x = 3

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3 years ago

3x+5y = 15 find the slope of a line perpendicular to each given line

gladu [14]

Answer:

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Step-by-step explanation:

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1 year ago

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erastova [34]

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2 years ago

Read 2 more answers

During summer vacation, Tori read, on average, 40 pages per night. Now that she has returned to school, she is averaging 5% fewe

STatiana [176]

Answer: 38 pages per night

Step-by-step explanation:

Tori used to read an average of 40 pages per night but now she is going at a rate that is 5% slower.

To find the number of pages she is reading now, first find 5% of 40 pages:

= 5% * 40

= 2

Then subtract this figure from 40:

= 40 - 2

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<em>By deducting 5% from the reading quantity, the person is reading at 5% less. </em>

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2 years ago

The weights of packs of chewing gum for a certain brand have a mean of 47.1 grams and a standard deviation 2.4

Verdich [7]

A Z-score helps us to understand how far is the data from the mean. The correct option is B.

<h3>What is Z-score?</h3>

A Z-score helps us to understand how far is the data from the mean. It is a measure of how many times the data is above or below the mean. It is given by the formula,

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

Where Z is the Z-score,

X is the data point,

μ is the mean and σ is the standard variable.

The weight of a randomly selected pack of gum has a z-score of 3.11. Therefore, The weight of this pack of gum is heavier than the mean weight by 3.11 standard deviations.

Hence, the correct option is B.

Learn more about Z-score:

brainly.com/question/13299273

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2 years ago