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2 years ago

The total bill for a dinner party

Mathematics

2 answers:

melamori03 [73]2 years ago

6 0

Answer:

Step-by-step explanation:

There were 9 other people there. First you would subtract how much marcus paid from the total (134.03-20.45=113.58). After that you just divide the remaining cost with 12.62 (113.58/12.62=9)

lana [24]2 years ago

6 0

9 is the answer i guess

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Evaluate the sum from n equals five to nine of quantity three n plus two

goldfiish [28.3K]

Answer:

The given expanded sum of the series is $\sum\limits_{n=5}^{9}3n+2=115$

Step-by-step explanation:

Given problem can be written as

$\sum\limits_{n=5}^{9}3n+2$

To find their sums:

Now expanding the series

That is put n=5,6,7,8,9 in the given summation

$\sum\limits_{n=5}^{9}3n+2=[3(5)+2]+[3(6)+2]+[3(7)+2]+[3(8)+2]+[3(9)+2]$

$=[15+2]+[18+2]+[21+2]+[24+2]+[27+2]$

$=17+20+23+26+29$ (adding the terms)

$=115$

Therefore $\sum\limits_{n=5}^{9}3n+2=115$

Therefore the given sum of the series is $\sum\limits_{n=5}^{9}3n+2=115$

The given expanded sum of the series is $\sum\limits_{n=5}^{9}3n+2=115$

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2 years ago

If an object is dropped from a height of 200 feet, the function h(t)=-16t^2=200 gives the height of the object after t seconds.

Fed [463]

Hello,
Answer C
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2 years ago

Under a dilation of scale factor 4 with the center at the origin, if B (4,5), what will be the coordinates of the point B’?

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Answer:

(16,20)

Step-by-step explanation:

For a dilation about the origin, you just take your scale factor and multiply it to both the points.

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Step-by-step explanation:

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A plot of land is in the shape of a triangle. If one side is x meters, a second side (5x−3) meters, and a third side is ( 7x −

liubo4ka [24]

Given, the plot is in the shape of triangle.

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Third side = ( 7x-6 ) meters

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Combine like terms by adding all the x terms together and all the constant terms together.

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Perimeter = $13x - 9$ feet ... Answer

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3 years ago