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Serggg [28]
3 years ago
8

Calculate the perimeter and area for the parallelogram if a = 2.8 ,b = 16.5 and h = 11.5

Mathematics
2 answers:
VMariaS [17]3 years ago
7 0

Given is a parallelogram

Perimeter = 2 ( sum of the length of non parallel sides )

= 2 ( 2.8 + 16.5 ) = 38.6

Area of parallelogram =

(1/2) ( sum of length of parallel sides )* corresponding perpendicular distance

( 1/2)( 2.8 + 2.8)( 11.5 ) = 32.2

Answer : perimeter = 38.6 unit .

Area = 32.2 square unit

Nana76 [90]3 years ago
3 0

Perimeter = 2(a+b)

= 2(2.8+16.5)

=2(19.3)

Perimeter = 38.6

Area=base x height

=2.8 x 11.5

=32.2

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enot [183]

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What is the square root of 378904
zvonat [6]

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sqrt(378904)

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6 0
3 years ago
What is the square root of 95.54
vladimir2022 [97]
Well this is simple a calculator type problem...but if you are curious as the the algorithm used by simple calculators and such...

They use a Newtonian approximation until it surpasses the precision level of the calculator or computer program..

A newtonian approximation is an interative process that gets closer and closer to the actual answer to any mathematical problem...it is of the form:

x-(f(x)/(df/dx))

In a square root problem you wish to know:

x=√n  where x is the root and n is the number

x^2=n

x^2-n=0

So f(x)=x^2-n and df/dx=2x so using the definition of the newton approximation you have:

x-((x^2-n)/(2x)) which simplifies further to:

(2x^2-x^2+n)/(2x)

(x^2+n)/(2x), where you can choose any starting value of x that you desire (though convergence to an exact (if possible) solution will be swifter the closer xi is to the actual value x)

In this case the number, n=95.54, so a decent starting value for x would be 10.

Using this initial x in (x^2+95.54)/(2x) will result in the following iterative sequence of x.

10, 9.777, 9.774457, 9.7744565, 9.7744565066299210578124802523397

The calculator result for my calc is: 9.7744565066299210578124802523381

So you see how accurate the newton method is in just a few iterations. :P


5 0
3 years ago
The line graph shows the miles per gallon for a car.
Vikentia [17]

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<u>From the graph given</u>,

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By Comparing the rates we get,

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<u>X=35 miles per gallon</u>

Similarly,

3/105 =X/1

<u>X=35 miles per gallon</u>

6 0
3 years ago
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