Answer:
22.5
Step-by-step explanation:
i have gotten this question before so im for sure its 22.5
Answer:
Step-by-step explanation:
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The value of the given expression -1 5/6 x 6 1/2 is equal to -11 11/12.
As given in the question,
Given expression is equal to :
-1 5/6 x 6 1/2
Simplify the given expression -1 5/6 x 6 1/2 to get the value of the expression:
-1 5/6 x 6 1/2
Convert mixed fraction to proper fraction we have :
-1 5/6 = -11 /6
6 1/2 = 13 /2
-11/6 × 13 /2
= -(11 ×13) / (6×2)
= -143 /12
Convert the proper fraction into mixed fraction we get,
= -11 11/12
Therefore, the value of the given expression -1 5/6 x 6 1/2 is equal to -11 11/12.
The complete question is:
Find the value of the given expression:
-1 5/6 x 6 1/2
please explain now!
Learn more about expression here
brainly.com/question/14083225
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Answer:
We can rewrite this expression like this:
And we can use the quadratic formula given by:
Where 
And replacing we got:
And solving we got:
And since the value can't be negative the answer would be x = 32.75 and the value of y = 32.75+10 =42.75
Step-by-step explanation:
For this case we know that we have a rectangular playground and the area can be founded with this formula:
Where x represent the width and y the length. From the problem we know that A =1400 m^2 and the heigth is 10m longer than the wide so we can write this condition as:
And replacing this formula into the area we got:
We can rewrite this expression like this:
And we can use the quadratic formula given by:
Where
And replacing we got:
And solving we got:
And since the value can't be negative the answer would be x = 32.75 and the value of y = 32.75+10 =42.75
You have to calculate the expected value of pulling any number of good batteries.
There are 3 bad batteries (B) and seven good batteries (G)
If you pull two batteries the possible number of good batteries you can get are 0, 1 and 2.
GB, BG, GG, and BB
two chances for getting 1, one chance for getting two, and one chance for getting zero.
In order to calculate the expected value you have to first calculate the values of all the possibilities.
(GB = 7/10 x 3/10) (BG = 3/10 x 7/10) (GG = 7/10 x 7/10) (BB = 3/10 x 3/10)
Then take these answers and multiply them by the number of good batteries they each contain and add. (GB is 1 good battery, GG is two, etc.)
1(.21) + 1(.21) + 2(.49) + 0(.09)
The result is 1.4
The expected value of good batteries is 1.4
