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3 years ago

How do I do this problem

Mathematics

1 answer:

Marina86 [1]3 years ago

4 0

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

 5*(x-2)-4*(x+1)-(50)=0

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Whats negative 12 plus negative 9 minus negative 7

alex41 [277]

Answer:

-12-9--7= -14

Step-by-step explanation:

1 -12-9--7=

2 -21--7= (minus negative equals plus)

3 -21+7=14

3 0

3 years ago

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HELP PLZ DUE IN 10 MIN

slavikrds [6]

Answer:

y = 4x+9 is the answer.

Step-by-step explanation:

Hope this helps:)

5 0

3 years ago

Please help hurry!!!

rosijanka [135]

Answer:

6c² + 2c + 1

Step-by-step explanation:

4 + 4c + 3c² - 2c + 3c² - 3

Rearrange the experresion.

4 - 3 + 4c - 2c + 3c² + 3c²

Combine like terms.

1 + 2c + 6c²

Use the commutative property to reorder the terms.

6c² + 2c  + 1

4 0

2 years ago

PLEASE HELP ASAP !! (Picture included)

slega [8]

This is the question that's gonna put me over the top and make me a Brainly Genius. Of course working for free doing middle school math homework doesn't really sound like a genius, but I'm doing it anyway.

This one is the Pythagorean Theorem of course:

$(x+3)^2 + (x+4)^2 = (x+10)^2$

$x^2 + 6x + 9 + x^2 + 8x + 16 = x^2 + 20 x + 100$

$x^2 - 6x - 75 = 0$

The Shakespeare Quadratic Formula (2b or -2b) is a little shortcut for the quadratic formula when the middle term is even.

$x^2-2bx+c \textrm{ has zeros } x=b\pm \sqrt{b^2-c}$

So we get

$x = 3 \pm \sqrt{3^2 -(-75)} = 3 \pm \sqrt{84} = 3 \pm 2 \sqrt{21}$

The minus root is less than -6 giving negative sides, so we reject it and conclude

$x = 3 + 2 \sqrt{21}$

Choice C

When I hit Add I officially become a Genius. Maybe I should retire.

8 0

3 years ago

in the figure below , Line K is perpendicular to Line l. based on the information given in the figure, find the measure of <C

gulaghasi [49]

C is the answer for this

8 0

3 years ago

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