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2 years ago

What does (2/5 + 1/5) - 3/10 equal?

Mathematics

1 answer:

Vedmedyk [2.9K]2 years ago

7 0

3/5-3/10
= 6/10-3/10
=3/10

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Ill give brainiest

mario62 [17]

Answer:

I got one

Step-by-step explanation:

C.converse of the corresponding angles postulate

∠1 = 58° ( alternate angles )

HOPE THIS HELPS:)

STAY SAFE

∠1 and ∠2 form a straight angle and are supplementary, thus

∠2 = 180° - 58° = 122°

8 0

2 years ago

Complete the chart to find the mean, variance, and standard deviation. Remember to use commas and round numbers to the nearest t

vitfil [10]

Answer: The mean of the data is 433.75, variance of the data is 99667.19 and the standard deviation of the data is 315.7011.

Explanation:

The given data is 900, 35, 500 and 300.

The number of observation is 4.

Formula of mean is,

$\text{Mean}=\frac{\text{Sum of observations}}{\text{Number of observations}}$

$\bar{X}=\frac{900+35+50+300}{4} =433.75$

The formula of variance is given below,

$\sigma^2=\frac{1}{n}\sum{(X-\bar{X})^2}$

$\sigma^2=\frac{398668.75}{4}$

$\sigma^2=99667.19$

The variance of the data is 99667.19

$\sigma=\sqrt{99667.19}$

$\sigma=315.7011$

The standard deviation of the data is 315.7011.

The other information or values of given chart is shown in the attached table.

8 0

3 years ago

Read 2 more answers

Determine the greatest common factor (GCF): 10, 20, 40<br> Cual es la respuesta correcta

aniked [119]

Answer:

GCF would be 10

Step-by-step explanation:

GCF, aka <em>the greatest common factor</em> is the biggest number that can be multiplied to get that number. for example, in this situation it would be 1- because 10 can be multiplied to get any of those numbers. 1 x 10 = 10 ; 2 x 10 =20 ; 4 x 10 = 40. hope this helped!!

4 0

3 years ago

Plz help ill give 15 points

yan [13]

Answer:

Step-by-step explanation:

5 0

2 years ago

15z-7=14z+12 What does Z equal

Anika [276]

Answer:

Step-by-step explanation:

15z-14z=12+7

z=19

8 0

3 years ago