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2 years ago

Help me please please

Mathematics

1 answer:

ratelena [41]2 years ago

4 0

When dividing same numbers with different exponents (they’re both 10 so this works different than if they were different numbers) you subtract the top exponent by the bottom exponent. So 15-4=11 ultimately making the solution 10^11. Hope this helps :)

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Help!! pls i mark brainly answer

malfutka [58]

Answer:

On the left... True

On the right... False

Step-by-step explanation:

7 0

2 years ago

Assume your faucet drips at the rate of 3 drops per minute. Further assume that 20 drops is equal to 1 ml. How many drops will i

77julia77 [94]

3 drops per minute
20 drops = 1 ml

How many minutes are there in a day?
60*24 = 1,440 minutes

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5 0

2 years ago

Please help me solve---- -20-(4x-1)=-15

nikklg [1K]

I hope this helps you -20-(4x-1)=-15 -20-4x+1=-15 -20+1+15=4x -4=4x x=-1

7 0

2 years ago

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:

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