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4 years ago

5x + 8 - 7x = -4x + 1

Mathematics

2 answers:

irakobra [83]4 years ago

6 0

Step-by-step explanation:

5x+8-7x=4x+1

5x+7x-4x=8+1

8x=9

VMariaS [17]4 years ago

3 0

Answer:

awnser

Step-by-step explanation:

i chosed 1 awnser

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One of the events in the Winter Olympics is the Men's 500-meter Speed Skating.

poizon [28]

Answer:

Mean: $\bar x = 40.61$

$Median =40.2$

$Mode = 43.4$

Step-by-step explanation:

Given

See attachment for data

Solving (a): The mean

Mean is calculated as:

$\bar x = \frac{\sum x}{n}$

From the attached:

$n = 14$

So, the mean is:

$\bar x = \frac{43.4+43.4+43.4+43.1+43.2+40.2+40.2+40.1+40.3+39.44+39.17+38.03+38.19+36.45}{14}$

$\bar x = \frac{568.58}{14}$

$\bar x = 40.61$

Solving (b): The median

$n = 14$ ; this is an even number. So, the median is:

$Median = \frac{1}{2}(n+1)$

$Median = \frac{1}{2}(14+1)$

$Median = \frac{1}{2}(15)$

$Median = 7.5th$

This implies that the median is the average of the 7th and 8th item.

Next, is to order the data (in ascending order): <em>36.45, 38.03, 38.19, 39.17, 39.44, 40.1, 40.2, 40.2, 40.3, 43.1, 43.2, 43.4, 43.4, 43.4.</em>

The 7th and 8th items are: 40.2 and 40.2

The median is:

$Median = \frac{1}{2}(40.2 + 40.2)$

$Median = \frac{1}{2}*80.4$

$Median =40.2$

Solving (c): The mode

43.4 has the highest number of occurrence.

So:

$Mode = 43.4$

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Answer:

1/2 of an answer is zero

Step-by-step explanation:

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Y=4x-1 fill in table

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Answer:

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B is the midpoint of AC and D is the mid point of CE solve for x given BD=3x + 5 and AE= 4x+20

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Answer:triangle BCD is similar to triangle ACE (side, angle C, side)

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Step-by-step explanation:

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3 years ago