N 19) angle (21x+6) is equal angle 90°-----> by alternate exterior angles so 21x+6=90--------> 21x=84----------> x=4°
the answer N 19) is 4 degrees
N 20) angle 75 is equal angle 11x-2-----> by corresponding angles so 11x-2=75-----> 11x=77--------> x=7°
the answer N 20) is x=7 degrees
N 21) angle 60 is equal angle (8x-4)------> by alternate interior angles so 8x-4=60-----> 8x=64--------> x=64/8-----> x=8°
the answer N 21) is x=8 degrees
N 22) angle (x+139) is equal to angle 132-----> by alternate interior angles so x+139=132-------> x=132-139--------> x=-7 °
the answer N 22) is x=-7 degrees
N 23) angle (-1+14x) is equal to angle (12x+17)----> by alternate exterior angles so -1+14x=12x+17------> 14x-12x=17+1----> 2x=18----> x=9
the answer N 23) is x=9 degrees
N 24) angle (23x-5) is equal to angle (21x+5)----> by corresponding angles so 23x-5=21x+5-----> 23x-21x=5+5-----> 2x=10-----> x=5
the answer N 24) is x=5 degrees
N 25) angle (x+96) and angle (x+96)-------> are supplementary angles so x+96+x+96=180--------->2x+192=180------> x=-6° the angle indicated in bold is (-6+96)=90°
N 26) angle (20x+5) and angle (24x-1)-------> are supplementary angles so 20x+5+24x-1=180------> 44x=176-----> x=4° the angle indicated in bold is (20*4+5)=85°
N 27) angle (6x) is equal to angle (5x+10)--------> by corresponding angles so 6x=5x+10------> 6x-5x=10------> x=10 the angle indicated in bold is (6*10)=60°
N 28) angle (x+109) and angle (x+89) are supplementary angles so x+109+x+89=180----> 2x=-18-------> x=-9 the angle indicated in bold is (x+89)----> -9+89=80°
First we need to count the total number scores. This can be done from the stem and leaf plot. The total number of scores are 19. The total number of values is odd, so the median position will be:
Thus the 10th score is the median score for the class of Mr. Robert. The 10th score from the stem and leaf plot is 81.
Thus 81 is the median score of Mr. Robert's Class.
Plugging it in, we get (3)(2)+2y=-12 and 6+2y=-12. Subtracting 6 from both sides, we get -18=2y and dividing by 2 we get y=-9 to get (2, -9) since x is first in the pair
Here are the numbers 4.3 , 5.5 , 6 , , 4 I'm going to change them into fractions In the fractions, divide the numerator by the denominator <em />⇔6.1666--- ⇔3.75 ⇔4.375 Now to arrange them from least to the greatest , 4.3 , , 5.5 ,
, 
, 4
<em />⇔6.1666---
⇔4.375