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Luba_88 [7]
3 years ago
15

How do you write 3/8 as a decimal

Mathematics
2 answers:
Dmitry [639]3 years ago
7 0
3.8, 0.38, 3.80 or 38.0
lesya692 [45]3 years ago
6 0
The answer is 0.375. Test it to see, it’s correct.
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The area of a rectangle is 56 cm. The length is 2 cm more than x and the width is 5 cm less than twice x. Solve for x. Round to
Black_prince [1.1K]
 Length = x + 2  (because it is 2 cm more than x)
Width = 2x - 5   (5 cm lest than 2x)Area = 54 cm2  this is the formula to find the area Length × Width = Area (x + 2)(2x - 5) = 542x2 - x - 10 = 54   (this is you area)

  Subtract 54 on both sides of equation to make the right side zero. 2x2 - x - 64 = 0  then use the quadratic formula x = (-b ± √(b2 - 4ac)) / 2a where:a = 2b = -1c = -64 Plug in these values into the formula. x = (1 ± √(1 - 4(-128))) / 4 x = (1 ± √(513)) / 4 x = (1 ± 22.65) / 4 x = (1 + 22.65) / 4          and          x = (1 - 22.65) / 4 x = 5.91                          and          x = -5.41  Check the validity of the x values by adding them to the length and width.  If the length or width should be a negative value, then that value of x is not acceptable. Now x = 5.91 Length = 5.91 + 2  (positive value.)Width = 2(5.91) - 5  ( positive value.) x = 5.91    If we look at this -- x = -5.41, Both length and width will be negative values. We reject this value of x.  The answer is x = 5.91

Hope I helped and sorry it was really long
6 0
2 years ago
Read 2 more answers
You are interested in the relationship between leisure activities and mood. One group of participants watches at least 2 hours o
Romashka [77]

Answer:

The most appropriate statistical test to use to compare the mood scores from the different groups is independent sample t-test.

Step-by-step explanation:

The Independent Samples t-test examines the means of two independent groups to see if statistical evidence exists to show that the related population means differ significantly.

The Independent Samples t-test is also known as Independent t-test, Independent Two-sample t-test, and among others.

It should be note that only two (and only two) groups can be compared using the Independent Samples t-test. It is not possible to use it to make comparisons between more than two groups.

Therefore, the most appropriate statistical test to use to compare the mood scores from the different groups is independent sample t-test.

3 0
3 years ago
This does not make sense to me
solong [7]
To find area you have to multiply length x width. so to find your answer the equation should be 15/22 x 2/5
6 0
3 years ago
Read 2 more answers
4 x 4 5/6 simplify equation
mixas84 [53]

= 856

Step-by-step explanation:

im not sure :) ....

7 0
3 years ago
In a plane if two line are perpendicular to the same line then they ___ to each other.
Kruka [31]

It’s either skew parallel

6 0
3 years ago
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