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tia_tia [17]
3 years ago
6

The length of a rectangle is 7 less than the width. If the

Mathematics
1 answer:
victus00 [196]3 years ago
3 0

Answer:

Step-by-step explanation:

Let width = w

Length = w - 7

Perimeter = 2*(length + width)

2*(w-7 + w) = 50

2* (2w - 7) = 50

2*2w - 7*2 = 50

4w - 14 = 50

Add 14 to both the sides

4w = 50+ 14

4w = 64

Divide the entire equation by  4

w = 64/4

w = 16 units

Length = 16 - 7 = 9 units

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A

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3 years ago
What is the value of b2 - 4ac for the following equation?<br><br> 2x 2 - 2x - 1 = 0
NikAS [45]
2x^2-2x-1=0
\Delta=b^2-4ac

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Point P is located at (-2, 7), and point R is located at (1, 0). find the y value for the point Q that is located 2/3 the distan
Dominik [7]

Just did this one.

Answer: 7/3 or about 2.3, choice (d).



Step-by-step explanation:


R-P= (3,-7). the displacement vector.


P+x(R-P) moves to x times distance between


P+(R-P) = R moves to 100% of the distance.


Q = P+2/3(R-P)


= (-2,7)+2/3(3,-7)


= (-2,7)+(2,-14/3)


= (0,7-14/3)


= (0,7/3)


= (0,2.3333...)


Read more on Brainly.com - brainly.com/question/11869584#readmore

7 0
3 years ago
Pls help!!<br><br><br> need ur help math geniuses help with my last question!<br><br><br><br> ty
Shtirlitz [24]

The expected value of the discrete distribution is of 20.97, hence option C gives the correct answer.

<h3>What is the mean of a discrete distribution?</h3>

The expected value of a discrete distribution is given by the <u>sum of each outcome multiplied by it's respective probability.</u>

Hence, according to the table, the expected value is given by:

E(X) = 12 x 0.08 + 18 x 0.15 + 20 x 0.31 + 22 x 0.08 + 24 x 0.15 + 25 x 0.23 = 20.97.

More can be learned about the expected value of a discrete distribution at brainly.com/question/26660401

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2 years ago
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wlad13 [49]
To find the slope between the points, you would go through this process
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Aka
-(7/4) which is our slope
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3 years ago
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