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Misha Larkins [42]
3 years ago
12

(3x + 5y +1) + (5x + y-2)=?​

Mathematics
1 answer:
mamaluj [8]3 years ago
8 0

Answer:

8x+6y+(-1)

Step-by-step explanation:

3x+5x=8x  5y+y=6y  1-2=(-1)   Add it all together

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Find the area of the following circle.
Deffense [45]

Answer:

113.04

Step-by-step explanation:

I flipen love this but anyways so a=start with your formula which would be

A=\pi r^{2}

so then you just subsitute which then would be

3.14*6*6

and you get

113.04

anyways i hope that helps and have a great day :)

6 0
3 years ago
Please answer my question!
Bess [88]

Answer:

Im pretty sure ita square root 0.4

Step-by-step explanation:

if you square root it, its the only one that doesnt repeat and doesnt stop, which makes it irrational.

6 0
4 years ago
9 times a number has 1 subtracted from it. The result is trebled. The answer is the same if you add 7 to twice the number and mu
Natali [406]

Answer: 4

Step-by-step explanation: 1) You need to first understand the question and a way to do that is to list plainly the information given.

2) Let the number be (X)

3) For the equation from the first sentence given; 3(9x-1)

4) From the second sentence; 7(7+2x)

5) Equating both sentences together, since the question says they are the same 3(9x-1) = 7(7+2x)

6) Opening the bracket/expanding the equation.... 27x-3=49+14x

Solving further we will have 13x = 52

X= 52/13

= 4

3 0
3 years ago
Read 2 more answers
10x - 4y = -4 -3x + 7y = -22 método de Cramer
-BARSIC- [3]

(-2,-4)

Cramer's rule

10x - 4y = -4

-3x + 7y = -22

Main determinant : 58

Determinant of <em>x</em> : -116

Determinant of <em>y</em> : -232

So, (-2,-4)

Hope this helps and please consider marking branliest.

6 0
3 years ago
Please answer:
Ilya [14]

Answer:

D

Step-by-step explanation:

I think I am not sure

Sorry if I am wrong:\

4 0
3 years ago
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