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3 years ago

What is the result of adding these two equations? - 2x + y = -5 - 2x - 4y = 6

Mathematics

2 answers:

Angelina_Jolie [31]3 years ago

6 0

Answer:

-4x-3y=1

Step-by-step explanation:

when adding the wo equations, u must add like ters. -2x+-2x is -4x. and positive y+ -y= -3y and-5+6=1. so if u put it all together after adding all integers you get -4x-3y=1

Gelneren [198K]3 years ago

4 0

Answer: 5y = -11

Step-by-step explanation:

-2x + y = -5

(-2x - 4y = 6) -1

-2x + y = -5

2x + 4y = -6

System by elimination method

0 + 5y = -11

5y = -11

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Write the equation of a circle with a center at (0, 8) and a radius of 9.

pshichka [43]

Answer:

$x^2 + (y-8)^2= 81$

Step-by-step explanation:

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3 years ago

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3 years ago

What is 7/3/15 and what is 11/1/6

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3 years ago

PLEASE HELP I AM FAILING!

ElenaW [278]

Answer:

$252n = ({2}^{2} \times {3}^{2} \times {7}^{1} )n$

2. Factor =

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Step-by-step explanation:

Let the starting population size for organisms A and B be represented by N.

For organism A;

Day 0: N

Day 1: 2N

Day 2: N

Day 3: N

Day 4: N

Day 5: N

Day 6: N

Day 7: N

Day 8: N

For organism B;

Day 0: N

Day 1: 2N

Day 2: N

Day 3: N

Day 4: N

Day 5: N

Day 6: N

Day 7: N

Day 8: N

1. After the eight days, organism B's population is larger than organism A's population by;

N - N = 256N - 4N

= 252N

= ( x x )N

2. Organism A's population grows by

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3 years ago