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4vir4ik [10]
3 years ago
15

Pls help :) Marking as brainlist

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
8 0
The area is 19.5 and the perimeter is 23.1

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A certain amount of money is shared between
ICE Princess25 [194]
<h3>Hello There !! </h3>

<h3><u>Explanation :- </u></h3>

• Amount received by Rui = 5x = 5 x 11 = $55..

• Amount received by Vishal = 9x = 9 x 11 = $99..

Let the amount received by Rui be 5x..

Then the amount received by Vishal is 9x ..

And by this data = 5x + 44 = 9x ..

  • 4x = 44
  • x = 44/4 = 11

• Amount received by Rui = 5x = 5 x 11 = $55..

• Amount received by Vishal = 9x = 9 x 11 = $99..

<h3>Hope this helps you..! </h3>
7 0
2 years ago
Find the remainder when 1 + 2 + 2^2 + 2^3 + ... + 2^100 is divided by 7.<br><br> Thanks in advance!
Firlakuza [10]

Answer:

3.

Step-by-step explanation:

This is a geometric series so the sum is:

a1 * r^n - 1 / (r - 1)

= 1 * (2^101 -1) / (2-1)

= 2^101 - 1.

Find the remainder when 2^101 is divided by 7:

Note that 101 = 14*7 + 3 so

2^101 = 2^(7*14 + 3) =  2^3  * (2^14)^7 = 8 * (2^14)^7.

By Fermat's Little Theorem  (2^14) ^ 7 = 2^14 mod 7 = 4^7 mod 7.

So 2^101 mod 7 = (8 * 4^7) mod 7

                           = (8 * 4) mod 7

                            = 32 mod 7

                            = 4 = the remainder when 2^101 is divided by 7.

So the remainder when 2^101- 1 is divided by 7 is 4 - 1 = 3..

4 0
2 years ago
What is the solution to the system of equations?
vesna_86 [32]
The correct answer is (10,-20), because the equation already gives you the correct x value. Then, from there you just plug 10 in for x in the y equation. Giving you a -20, :)
7 0
2 years ago
Bruce reads 3fourths hour each night.how long will he read in 4 nights
OlgaM077 [116]
3 fourths of an hour is : (3/4)
(3/4)*4=3 hours

hope this helps!
5 0
3 years ago
Which irrational number can be multiplied by –StartRoot 41 EndRoot to get a product that equals 1?
sineoko [7]

Answer:

-  \sqrt{ \frac{1}{41} }

Step-by-step explanation:

Let x be the irrational number that can be multiplied by -√41 to get a product that equals 1.

x  \times  - \sqrt{41}  = 1

Solve for x, by dividing through with -√41

This gives us:

x =  \frac{1}{ -  \sqrt{41} }

This is the same as:

x = -   \frac{ \sqrt{1} }{ \sqrt{41} }

Or

x =  -  \sqrt{ \frac{1}{41} }

Therefore the irrational number is

-  \sqrt{ \frac{1}{41} }

8 0
3 years ago
Read 2 more answers
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