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Vsevolod [243]
3 years ago
11

What are the answers for both of those if you get it right I’ll also give you brainliest answer comment

Mathematics
1 answer:
tangare [24]3 years ago
6 0

Answer:

answer 1,  135

Step-by-step explanation:

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Sally, John & Mary had a discussion about Quadrilateral PQRS. Sally claimed that the figure represents an isosceles trapezoi
Kobotan [32]

Answer:

Step-by-step explanation:

Find the lenghth of the left and right sides using the distance formula to determine if the trapeziod is isosceles

d=\sqrt{(x_{2}-x_{1})^{2} +(y_{2}-y_{1})^{2}

PS=\sqrt{(2-1)^2+(0-4)^2}

PS=\sqrt{17}

QR=\sqrt{(13-9)^{2}+(8-10)^{2}}

QR=\sqrt{20}

Since PS\neq QR (the sides are not equal) this is not an isosceles trapezoid

Sally is incorrect and John is possibly correct.

Find the slope of the top and bottom sides to determine if this is a trapezoid.

m= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}

SR:  m= \frac{0-8}{2-13}

m=\frac{8}{11}

PQ:  m=\frac{4-10}{1-9}

m=\frac{6}{8}=\frac{3}{4}

since mSR\neq mPQ (the slopes are not equal) the top and bottom sides are not parallel therefore this is not a trapezoid. Hence, John is incorrect, and Mary is ultimately correct.

5 0
3 years ago
If a line has a slope of 3/4 then what would be the slope of the parallel to it
AlladinOne [14]

Answer:

it would also be 3/4x (in terms of y=mx+c)

Step-by-step explanation:

parallel lines have the same slope/gradient

6 0
3 years ago
The variables x and y are inversely proportional, and y = 2 when x = 3. What is the value of y when x = 9?
givi [52]
If\ x\ and\ y\ are\ inversely\ proportional\ then\ xy\ is\ constans.\\\\9y=2\times 3\\\\9y=6\ \ \ \ \ \ /:9\\\\y=\frac{6}{9}\\\\y=\frac{2}{3}
7 0
3 years ago
Read 2 more answers
Pls Help ME Will Mark The Brainliest
Rasek [7]
All you have to do is times it by 4
5 0
3 years ago
the total cost for two items is $19 is the difference in the cost of the two items is $5 find the cost of each item.
lora16 [44]

Ok so you spent 19 dollars the difference between prices is 5 dollars and your answer would be 12 and 7. If you need any help let me know.

5 0
3 years ago
Read 2 more answers
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