Answer:
5 and -5
Step-by-step explanation:
3x² = 75
x² = 75/3
x² = √25
x = 5 and - 5
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Since angles 3 and 4 are supplementary, they add up to 180 degrees.
Angle 3 is 88 degrees.
To get the measure of the last angle, let's subtract 88 from 180.
180 - 88 = 92
Thus, Angle 4 has a measure of 92 degrees.
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Answer:
see below
Step-by-step explanation:
you can use cosine law
(3 sqrt3)^2 + (4 sqrt3)^2 - 2(3 sqrt3)(4sqrt3)cos60 = AC^2
AC = sqrt39
Answer:
The fraction of the original strip left is
.
Step-by-step explanation:
We have that,
A strip of paper is cut in
. So, the strip of paper left is
.
Now, again the remaining part is cut in half. The part left will be
i.e.
.
Finally, the remaining part is again cut in half.
We get, the final part of the paper remaining is
i.e.
.
So, the fraction of the original strip left is
.