For questions 1 and 2 , write each expression using a single exponent.
<span>For questions 3 and 4, simplify each expression.
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<span>For questions 6-8, multiply the following polynomial.
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Subtract 195 by the 25 extra minutes paula ran on saturday. then divide the answer(170) by 2 to get 85 for the number of minutes she ran on sunday. Add the 25 extra minutes to 85 to get the number of minutes she ran on saturday, which will be 110 minutes.
Try this explanation:
according to the properties of such angles, m∠DGF=~DF=74° and m∠DEF=0.5* m(~DF)=37°
answer: C
y=ax+b and y=cx+d, these lines are parallels if a = c
2) a) y = 3x+9, the two lines are y = 3x-4 and y = 3x+5
<span>b) y = -5x+6, the two lines are y = -5x+4 and y = -5x-2
</span>c) y = -7x+8, the two lines are y = -7x-9 and y = <span>-7x+7
same method with the d e and f
3) </span><span>y=ax+b and y=cx+d, these lines are perpendicular if a x c=-1
a) y=3x+7, the two lines are y= (-1/3 )x +2, and y= (-1/3)x-6 </span><span>
b) </span>y= -5/6x-2, the two lines are y= (6/5)x -2, and y= (6/5)x+13<span>
c) </span>y= - 5x+8, the two lines are y= (1/5)x - 32, and y= (<span>1/5 )x+11
the same method for d e and f
4) coordinates of the midpoints
a) (0, 0) and (5, 15)
the midpoints is ((0+5) / 2, (0+15)/2)= (5/2, 15/2)
b) (2, 4) and (6, -5)
</span><span>the midpoints is ((2+6) / 2, (4-5)/2)= (4, -1/2)
</span>c) (3,5) and (7,5)
<span>the midpoints is ((3+7) / 2, (5+5)/2)= (5, 5)
</span>the same method for d e and f
