rosebebo7615
08.07.2019 •
Mathematics
Explain how -3 to the power for and (-3) to the power of 4 are similar? how are they different?
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Ответ:
-3^4 = -3 * 3 * 3 * 3
Ignoring the negative in front until the end.
= -81
(-3)^4 tells you to take the number -3 and multiply it by itself 4 times.
(-3)^4 = (-3) * (-3) * (-3) * (-3)
Which gives us a different result,
= 81
Ответ:
Suppose they are 6y.
Then 6y + 6y + 8y - 16 = 180
20y = 180 +16
20y = 196
y = 9.8
Then one base angle is 6*9.8 = 58.8°
And the other base angle is 8(9.8) - 16 = 62.4.
Now suppose that the two equal angles are 8 y -16
Then 8y -1 6 + 8y - 16 + 6y = 180
Then 16y - 32 = 180
16y = 180 + 32
16y = 212
y = 13.25
One angle is 6(13.25) = 79.5
And the other is 8(13.25) - 16 = 90
This last solution is imposible.
So the answer is 58.8 and 62.4