Answer:The short answer would be y=2x+4
Step-by-step explanation:
Here's why standard form is y=mx+b.
Thus, if we solved 2x-y=-4, we would get y+2x+4.
1. 2x-y=-4
2. -y= -2x-4
3. y=2x+4
In any polygon with number of sides = n, the sum of measures of its internal angles is equal to (n-2)*180
Now, for a nonagon:
number of sides = 9
sum of internal angles = (9-2)*180 = 1260 degrees
We are given the measures of seven of its angles and we know that the other two are equal. Assume that each angle of the remaining two angles has a measurements = x degrees
Therefore:
sum of angles = 138 + <span>154 + 145 + 132 + 128 + 147 + 130 + x + x
1260 = 974 + 2x
2x = 1260 - 974
2x = 286
x = 143 degrees
Based on the above calculations:
The measure of each angle of the remaining two angles is 143 degrees</span>
Answer:
Step-by-step explanation:
So Blakes sleep 8 hours per night during the school day
8 hours/night...................................100%
6.5 hours/night...................................?
6.5*100/8=81.25
the change in percentage is 100-81.25=18.75%
the percentage change is 18.75
if it is easier for you, another method is:
8-6.5=1.5 subtract the original amount to the new amount
1.5/8=0.1875 divide by the original amount
0.1875*100=18.75 find the percentage
Answer:
No, A repeating decimal is called a irrational number
Step-by-step explanation:
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Answer:
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