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hammer [34]
3 years ago
13

In a parallelogram a diagonal of the length 20 cm is perpendicular to one of the sides. Find the longer side of parallelogram if

its perimeter is 80 cm.
Mathematics
1 answer:
vovangra [49]3 years ago
5 0
If diagonals of a parallelogram are perpendicular to each other, this is a rhombus. A rhombus has all sides equal.
In the current scenario, the shorter rhombus is 20 cm long and has a perimeter of 80 cm

Side of rhombus = 80/4 = 20 cm
A quarter of rhombus is right angled triangle with hypotenuse being side of rhombus.
Half length of long diagonal = sqrt (20^2-10^2) = 17.32 cm
Length of longer rhombus = 17.32*2 = 34.64 cm
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How many pairwise comparisons must you make for a case with 15 statistically independent scenarios?
Levart [38]

There are 105 comparisons made with 15 statistically independent scenarios.

According to the statement

we have given value of n is 15.

Then r = 2. so,

we use the formula NcR then

Substitute the values in it then

15c2

we open it according to ncr formula

In this formula we arrange the terms according to the following

NcR formula = n! /r! * (n-r)!

then the terms will arrange in this way.

So,

ncr = 15! / 2! * 13!

After solving the statement some terms will be cancel with each other and remaining terms are

ncr = 15*14/2

ncr = 210/2

ncr = 105

here the value becomes 105.

So, There are 105 comparisons made with 15 statistically independent scenarios.

Learn more about COMBINATION here brainly.com/question/12725706

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3 0
2 years ago
The East Bay Deli, makes 12.38 pounds of pasta salad each day. West Bay Deli makes three times that amount each day. How many co
drek231 [11]
<span>The East Bay Deli, makes 12.38 pounds of pasta salad each day. West Bay Deli makes three times that amount each day. How many combined pounds of pasta salad is made per week between the two delis? Find a fourth of their combined weekly production of pasta salad.
x=12.38*7= 86.66 pounds per week
y=3x*7 = </span>259.98 pounds per week
x+y=86.66+259.98= 346.64 pounds per week assuming a week has 7 days
346.64/4= 86.66 

5 0
3 years ago
What is the value of the expression 7- x when x =2.
Schach [20]

Answer:

5 is the answer of the equation

6 0
3 years ago
Read 2 more answers
Please help<br> See the picture <br> Twst
erik [133]

Answer:

7

Step-by-step explanation:

1. Use sine law to solve

3/sin35 = x/sin55

3sin55/sin35 = 7

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Csqrt31" id="TexFormula1" title="\sqrt31" alt="\sqrt31" align="absmiddle" class="latex-formu
andreyandreev [35.5K]

Answer:

Decimal: 5.567764)

Step-by-step explanation:

Decimal: 5.567764)

3 0
2 years ago
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