Type in expanded form. Use parentheses to indicate multiplication. (-3x)^4
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Hi there! The answer is -4
Subtract 5 from both sides.
Divide by 4
Therefore, the largest integer value of x which makes the inequality true is -4. Not -3, because when filling in -3, the value isn't smaller than -3 anymore.
(Filling in x = -3 gives 17 > 17, which is incorrect).
Subtract 5 from both sides.
Divide by 4
Therefore, the largest integer value of x which makes the inequality true is -4. Not -3, because when filling in -3, the value isn't smaller than -3 anymore.
(Filling in x = -3 gives 17 > 17, which is incorrect).
<h3>Answer: 40</h3>
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Explanation:
The inscribed angle 20 degrees doubles to 2*20 = 40 which is the measure of the central angle, and the arc in which the inscribed angle subtends (or cuts off). This is due to the aptly named inscribed angle theorem.
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A slightly longer alternative path would be to do this:
The triangle with interior angles 20 and c is isosceles. Note how the missing angle up top is one of the congruent base angles, so the missing angle is 20 degrees. That means angle c is...
20+20+c = 180
40+c = 180
c = 180-40
c = 140
Then angle b is supplementary to this
b+c = 180
b+140 = 180
b = 180-140
b = 40
This path leads to the same answer. It's slightly longer, but it's a path you can take if you aren't familiar with the inscribed angle theorem.
In fact, this line of thinking is effectively how the inscribed angle theorem is proved as shown in the diagram below.