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2 years ago

Helppppppp mmeeeeee plllzzzzz

Mathematics

1 answer:

nikdorinn [45]2 years ago

7 0

Answer: the answer is 6

Step-by-step explanation:

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Does (0,0) satisfy x+3y>3

PtichkaEL [24]

$\bf x+3y > 3\qquad \qquad (\stackrel{x}{0}~~,~~\stackrel{y}{0})\qquad \qquad 0+3(0) > 3\implies \stackrel{\stackrel{\textit{is this true?}}{\downarrow }}{0>3}\qquad nope!$

4 0

3 years ago

Find x, if 3x − 5(y + x ) ^2 = 16 and 4x + 2(y + x )^ 2 = 30

lana66690 [7]

Answer:

x = 7

Step-by-step explanation:

Start by solving for $(y+x)^2$ which is a common expression for both equations. Then in the first equation:

$3\,x5\,(y+x)^2=16\\3x-16=5\,(y+x)^2\\(y+x)^2=\frac{3\,x-16}{5}$

and in the second equation:

$4\,x+2\,(y+x)^2=30\\2\,(y+x)^2=30-4\,x\\(y+x)^2=15-2\,x$

Now we make the two $(y+x)^2$ expressions equal so we get:

$\frac{3\,x-16}{5} =15-2\,x\\3\,x-16=75-10\,x\\13\,x=75+16\\13\,x=91\\x=7$

8 0

3 years ago

Will mark brainlist if its right

lakkis [162]

Answer:

No solution

Step-by-step explanation:

-5r + 6 ≤ -5( r+2 )

-5r + 6 ≤ -5r -10

6 ≤ -10

7 0

2 years ago

I need help, along with an explanation, for this question.

Aleksandr-060686 [28]

Answer:

1. -9

2. -15

Step-by-step explanation:

Reduce the expression, if possible, by cancelling the common factors.

8 0

2 years ago

What is the least common multiple of 6 and 16?<br> lcm/6, 16)

Step2247 [10]

Answer:

Step-by-step explanation:

multiples of 6: 6 12 18 24 30 36 42 48 54 60

multiples of 16: 16 32 48 64

lowest one is 48

8 0

2 years ago