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Eduardwww [97]
3 years ago
13

Factor the expression r^2+19rs+90s^2

Mathematics
2 answers:
Natasha2012 [34]3 years ago
8 0
The expression factorises to C.
daser333 [38]3 years ago
3 0
The answer to the question is c
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Hi! plz help it would mean a lot ty! and plz don't troll! first person who solves it get brainlist!
Ugo [173]

Answer:

Step-by-step explanation:

It’s b

4 0
2 years ago
Read 2 more answers
Help me ):
slavikrds [6]
For the carpet:

Given:

Area = x^2 + x - 20 ft^2
Length = x+ 5 ft

As a carpet is rectangular, the area is defined as the product of the length and the width. To obtain an expression of the carpet's width, the area is to be divided by the length, which is shown below:

         __x_-_4___x + 5|x^2 + x - 20         x^2 + 5x         --------          -4x - 20          -4x - 20             --------                    0

Therefore, the expression of width = x - 4.

Applying the value of x = 20 to obtain the measurements of the carpet, we obtain the following:

Width = x - 4 = 20 - 4 = 16ft
Length = x+ 5 = 20 + 5 = 25ft.

Therefore, the carpet is 25ft x 16ft.

For the wall:

The same principles apply to the wall as it is also assumed to be rectangular.

Given:
Area = <span>x^2 + 17x + 30 ft^2
Width = x + 2

To obtain the expression for the wall's length, Area is to be divided by the Width, which is shown below:

         __x_+_15______x + 2|x^2 + 17x + 30         x^2 + 2x          --------                  15x + 30                  15x + 30                   ---------                             0

Therefore, the expression for the wall's length is x + 15.

Applying the value of x = 20 to obtain the wall's dimensions:

Length = x + 15 = 20 + 15 = 35ft.
Width = x + 2 = 20 + 2 = 22ft.

Therefore the wall has measurements of 35ft x 22ft.</span>
8 0
3 years ago
Help me with this question please :)
Inessa05 [86]
<h3>Answer:  5040</h3>

Explanation:

There are 7 ways to pick the first place position, then 6 ways for second place, 5 for third, and so on. We count down until we get to 1

7,6,5,4,3,2,1

Multiply out those values to get the final answer. On many calculators this can be done using the factorial button, indicated as an exclamation mark

7! = 7*6*5*4*3*2*1 = 5040

4 0
2 years ago
24 is what percent of 49?
otez555 [7]
24 is what percent of 49? The answer to that is 48.98.
5 0
3 years ago
Read 2 more answers
7x-3y = 10<br>-3x-8y= 5​
victus00 [196]
My answer would be y=-1
6 0
3 years ago
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