All categories

3 years ago

Help please! Find the length of AB:

Mathematics

2 answers:

elena-14-01-66 [18.8K]3 years ago

8 0

Answer:

Probably 16 (whatever unit)

Step-by-step explanation:

You divide both sides by three to get x after rewriting the problem.

Bezzdna [24]3 years ago

7 0

Answer:

3x+8

Step-by-step explanation:

won't it just be that because 3x+8 is between A and B

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Law of sines?? side c=22 side a=16 side b= 21 solve for angle c??? help

den301095 [7]

Answer:

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Step-by-step explanation:

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3 years ago

Write an equation to represent the number puzzle. Use x as the

k0ka [10]

<h3>The equation is:</h3><h3> $x^2 - 7x + 12 = 0$ </h3><h3>The number is 3 or 4</h3><h3><em><u>Solution:</u></em></h3>

Given that,

7 added to the square of a number is equal to 7 times the number, minus 5

Let "x" be the unknown number

From given,

7 added to square of x = 7 times the x minus, 5

$7 + x^2 = 7x - 5$

Solve the above equation

$x^2 -7x +7+5 = 0\\\\x^2 - 7x + 12 = 0$

Split the middle term

$x^2 -3x - 4x + 12 = 0\\\\Group\ the\ expressions\\\\(x^2-3x) -(4x - 12) = 0\\\\Take\ the\ common\ factor\ out\\\\x(x -3) -4(x -3) = 0\\\\(x-3)(x-4) = 0$

We have two solutions

x - 3 = 0

x = 3

And

x - 4 = 0

x = 4

Thus number is 3 or 4

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3 years ago