∠CEB and ∠AED are vertical angles, which means they must be equal to each other. Make them = x in an equation. The angles form a quadrilateral, so the sum of the interior angles must equal 360°.
77 + 77 + x + x = 360
Combine like terms.
154 + 2x = 360
Subtract 154 from both sides.
2x = 206
Divide both sides by 2.
x = 103
∠CEB is greater than 90°, so it must be an obtuse angle.
Answer:
7/12
Step-by-step explanation:
Probability = number of ways desired result can happen/total number of outcomes.
There are a total of 12 marbles, so the denominator is 12.
Since the only non-yellow-or-blue marble color is orange, that is the desired result. There are 7 orange marbles, so the numerator is 7.
7/12
Wait is that the actual problem??
Answer:
y
=
−
x
+
31
Step-by-step explanation:
y = −
2
x
+
31
Answer:
Step-by-step explanation:
So, in this problem, we're given the size of the of the file. We are also given the rate of change of the amount-downloaded function.
Notice how the transfer rate is in units of time (25.2 MB/s means 25.2 MB per second).
If we want to calculate how <em>long</em> it'll take to download the entire file, we have to divide the file size by the amount of the MB downloaded in one second. (This is assuming the download rate is constant, in the case it isn't constant, you would use calculus) This will find the total number of seconds needed to download the entire file.
We're essentially solving for t in the equation

