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2 years ago

These two figures are similar. Find the length of side y.

Mathematics

1 answer:

TiliK225 [7]2 years ago

6 0

3.2 is the Length of y 7.5 is the length of z and the length of x is 12.5

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There are______<br>Pairs of integers satisfying a÷b = -2

aleksandr82 [10.1K]

Answer:

There are only 1

Pairs of integers satisfying a÷b = -2

Step-by-step explanation:

4 0

2 years ago

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A statistics practitioner determined that the mean and standard deviation of a data set were 120 and 30, is respectively. What c

BartSMP [9]

Answer:

a) 68% of the observations lie between 90 and 150.

b) 95% of the observations lie between 60 and 180.

c) 99.7% of the observations lie between 30 and 210.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Standard deviation = 120

Mean = 30

a. 90 and 150

This is within 1 standard deviation of the mean.

By the Empirical Rule, 68% of the observations lie between 90 and 150.

b. 60 and 180

This is within 2 standard deviations of the mean.

By the Empirical Rule, 95% of the observations lie between 60 and 180.

c. 30 and 210

This is within 3 standard deviations of the mean.

By the Empirical Rule, 99.7% of the observations lie between 30 and 210.

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2 years ago

Organizational charts are used to identify statistical data. Please select the best answer from the choices provided. True or fa

natita [175]

<span>False.
Organizational charts are the</span> graphic representation of the structure of an organization which shows the relationships of the positions within it.

7 0

2 years ago

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Suppose a farm has pens for raising insects. A pen is shaped as a rectangle that measures x meters wide and 2x meters long and h

Ludmilka [50]

Answer:

1.2 meters.

Step-by-step explanation:

Length of pen = 2x meters

width of pen = x meters

shape of pen is rectangular

we know that area of rectangle is given by length * width

Thus, area of the pen is x*2x = $2x^2$

It is also given that area of pen is 2.8 square meters.

Equating numerical value of area with area in terms of x, we have

$2x^2 = 2.88\\=> x^2 = 2.88/2\\=> x^2 = 1.44\\=> x = 1.2$

Thus value of x is 1.2 meters.

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2 years ago

A rectangle has length 4 yards more than its width. The area of the rectangle is 96 square yards. Find the

stepladder [879]

Answer:

Length = 12

Width = 8

Step-by-step explanation:

Area of a Rectangle = l x w

12 x 8 = 96

7 0

2 years ago