Find the values of a b and c in the table

Mathematics

2 answers:

Debora [2.8K]3 years ago

6 0

Answer: a=1, b=2, c=below x

Step-by-step explanation:

oksian1 [2.3K]3 years ago

3 0

Answer: use google calculator It’s reliable

Step-by-step explanation:

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Solve the equation 2x+8=12+10x

kari74 [83]

Solve the equation. Isolate the variable, x.

Note the equal sign, what you do to one side, you do to the other.

First, subtract 8 and 10x from both sides:

2x (-10x) + 8 (-8) = 12 (-8) + 10x (-10x)

2x - 10x = 12 - 8

Simplify. Combine like terms:

(2x - 10x) = (12 - 8)

-8x = 4

Isolate the variable, x. Divide -8 from both sides:

(-8x)/-8 = (4)/-8

x = -(4/8)

Simplify:

x = -1/2

-1/2 is your answer for x.

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The sides of a triangle have lengths of x, x + 5, and 25. If the longest side is 25, which of the following values of x would ma

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In a right angle, the sum of the squares of the two shorter sides is equal to the square of the longest side.
Here, the longest side is 25, the shorter sides are x and x+5.

$x^2+(x+5)^2=25^2 \\
x^2+x^2+10x+25=625 \\
2x^2+10x+25=625 \ \ \ |-625 \\
2x^2+10x-600=0 \ \ \ |\div 2 \\
x^2+5x-300=0 \\
x^2+20x-15x-300=0 \\
x(x+20)-15(x+20)=0 \\
(x-15)(x+20)=0 \\
x-15=0 \ \lor \ x+20=0 \\
x=15 \ \lor \ x=-20
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The length of a side must be a positive number, so x=15.
The answer is C.

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