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3 years ago

10

28° 58 F What is the value of the missing angle?

1 answer:

dedylja [7]3 years ago

5 0

Your answer is 94.

180-(28+58) gives you

180-86

=94

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Three less than four times a number is the same as the number +12 what is the equation?

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Drag and drop each pair of lines to categorize them as either parallel, perpendicular, or neither.

miss Akunina [59]

Answer:
first box is parallel
Second box perpendicular
Third box neither
Fourth box neither
Fifth box perpendicular
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Why? Slopes of parallel lines are the same. Slopes of perpendicular lines are opposite reciprocals. (Example slope=1/2 a perpendicular line would be -2/1). Neither is just a when it’s not either parallel or perpendicular.

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Answer:

$x^2+18=-9x : x = -3, x = -6$

Step-by-step explanation:

$x^2+18=-9x$

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$x^2+18+9x=-9x+9x$

Simplify:

$x^2+9x+18=0$

Solve with the quadratic formula:

For a quadratic equation of the form $ax^2+bx+c=0$ the solutions are:

$x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

For $a=1,\:b=9,\:c=18:\quad x_{1,\:2}=\frac{-9\pm \sqrt{9^2-4\cdot \:1\cdot \:18}}{2\cdot \:1}$

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The solution to the quadratic equation are:

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