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3 years ago

HELPPPP find the perimeter of the parallelogram!!!

Mathematics

2 answers:

sergejj [24]3 years ago

5 0

Answer:

76 ft

Step-by-step explanation:

(21 x 2) + (17 x 2) = 42 + 34 = 76 ft

butalik [34]3 years ago

3 0

Answer:

76ft.

Step-by-step explanation:

P = 2L +2H

P = 2(17) + 2(21)

P = 34 + 42

P = 76

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Point C is the midpoint of AB.point A has coordinates (2,4)and point C has coordinates (5,0) what are the coordinates of point B

devlian [24]

Answer:

The coordinates of point B is (8,-4)

Step-by-step explanation:

Midpoint of a line segment: It is the point on the line segment that divides the segment in two congruent segments.

Since it is given that C is the midpoint of Line segment AB.

Mid-point of a segment of end points $A(x_{1},y_{1})$ and $B(x_{2},y_{2})$ is, C= $(\frac{x_{1}+x_{2}}{2} , \frac{y_{1}+y_{2}}{2})$ .

As, given the coordinates of A and C are (2,4) and (5,0)

then, we have $x_{1}=2$ , $y_{1}=4$ ; $\frac{x_{1}+x_{2}}{2}=5$ and $\frac{y_{1}+y_{2}}{2}=0$

to find the coordinates of $B(x_{2},y_{2})$ .

$\frac{2+x_{2}}{2}=5$

Simplify:

$2+x_{2}=10$

⇒ $x_{2}=8$

to solve for $y_{2}$ we have, $\frac{y_{1}+y_{2}}{2}=0$

or $y_{1}+y_{2}=0$

or $y_{2}= -y_{1}$ = -4

so, the values of $x_{2}=8$ and $y_{2}=-4$

Therefore, the coordinates of point B is (8,-4)

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3 years ago

Which of these numbers are rational?

Rashid [163]

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gulaghasi [49]

Answer:

Step-by-step explanation:

8*8=64

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Answer:

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Step-by-step explanation:

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