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dsp73
3 years ago
8

Use slope to determine if lines PQ and RS are parallel,

Mathematics
1 answer:
liubo4ka [24]3 years ago
8 0

Answer:

PQ and RS are parallel to each other

Step-by-step explanation:

Slope of two points (x1,y1) and (x2,y2) is given by

slope = (y2-y1)/(x2-x1)

  • for two lines to be parallel slope should be equal
  • for two lines to be perpendicular product of slope should be -1
  • _______________________________________________

Lets find the slope of PQ and RS

for PQ P(2, -1), Q(-3,-1), R(-11, 9), S(-7, 9)

slope PQ = (-1 -(-1))/(-3 -2) = (-1 + 1)/5 = 0/5 = 0

Slope RS = (9-9)/(-7 - (-11) ) = 0/4 = 0

Since

slope PQ = slope RS = 0

Hence PQ and RS are parallel to each other

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Step-by-step explanation:

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Rectangle ABCD is similar to rectangle QRST. The width of ABCD is 5 inches and the length is 8 inches. If the length of QRST is
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Answer: 7.5

Form your proportion. Let x be the width of QRST.

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-----------------------  =  ------------------------- 
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8/5 = 12/x

Solve for x by cross-multiplying.
(8)(x) = (12)(5)
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3 years ago
The vertex of an isosceles triangle measures 15 degrees more than one of its base angles how many degrees are there in a base an
Alexxandr [17]
V=B+15
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Therefore:
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3 years ago
How do I find the inverse function of this equation
trapecia [35]

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Step-by-step explanation:

y=e^x/(1+e^x)

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Put anything with x on with side and everything without x on opposing side:

y=e^x-ye^x

Factor right hand side

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Use natural log.

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3 years ago
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Wewaii [24]

The complete question is as follows:

Jessica is a custodian at Oracle Arena. She waxes 20 \mathbf{m^{2}} of the floor in \mathbf{\frac{3}{5}} of and hour. At this rate, how many square meters can she wax per hour ?

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8 0
3 years ago
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