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2 years ago

PLEASE HELP ME ASAP!! ty :)

Mathematics

1 answer:

liberstina [14]2 years ago

3 0

answer will the option number C because there are coming many solutions after solving it in different different ways and including formulas too....

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What is the area of the polygon given below?<br> 14<br> 7<br> 14<br> 27

Ann [662]

Split into squares, find area of each and then add them! :)

525

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2 years ago

A rectangle is formed by placing 2 identical squares side by side. The area of the rectangle is 98 cm2. What is the perimeter of

kherson [118]

The rectangle area is 98. So if you split it in half, you would get 2 squares. Half of 98 is 49.

If it is now a square, you now simply know, that 7*7=49. Meaning that The sides of the square are 7 each.

7 times the 4 sides equals 28. So the perimeter of one square is 28.

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3 years ago

Given the equation 2x2 - 5x + 7 = 0. Find the discriminant. Describe the roots and explain your reasoning.

White raven [17]

The discriminant of a quadratic equation is a parameter that is used to determine the nature of the roots of the equation. The discriminant can be determined by b2- 4ac. In this case, upon substitution, 25- 4*2*7 = -31 in which the roots are negative and iimaginary.

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4 years ago

Using the following set of data, calculate the lower quartile, the upper quartile, and the interquartile range.20, 22, 25, 28, 2

madreJ [45]

Answer:

The lower quartile is 23.5

The upper quartile is 32.5

The interquartile range is 9

Step-by-step explanation:

The given data set is 20, 22, 25, 28, 29, 30, 32, 33, 34.

The data set is already sorted in ascending order.

The middle number of this data set is called the median.

Therefore the median is 29.

The median divides the data set into two halves.

The lower half is

20, 22, 25, 28

The median of the lower half is the lower quartile.

$Q_1 = \frac{22 + 25}{2} = \frac{47}{2} = 23.5$

The upper half is 30, 32, 33, 34

The median of the upper half is the upper quartile.

$Q_3= \frac{33 + 32}{2} = 32.5$

The interquartile range is given by

$IQR=Q_3-Q_1 \\ IQR=32.5 - 23.5 = 9$

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4 years ago

Pattern A follows the rule "add 5" and Pattern B follows the rule "subtract 2."

xxTIMURxx [149]

Answer:

(25,12)

Step-by-step explanation:

pattern A=20+5

=25

pattern B=14-2

=12

25,12

4 0

3 years ago