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2 years ago

Each trapezoid in the figure below is congruent to trapezoid ABDC.

Mathematics

2 answers:

blondinia [14]2 years ago

3 0

Answer:

B: 32 cm

Step-by-step explanation:

Add together only the outside lengths

6+6+4+4+3+3+3+3=32 cm

aleksandr82 [10.1K]2 years ago

3 0

Answer:

Step-by-step explanation:

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Make the following conversion. 420 hg = _____ cg 4200000 420000 0.0420 0.00420

Otrada [13]

Using the standards of conversions, we will find that 1 hg is equivalent to 10000 cg.
Therefore, to convert 420 hg to cg, all you have to do is cross multiplication as follows:
420 hg = (420 x 10000) / 1 = 4200000 cg

The correct choice is: 4200000

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2 years ago

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Find two solutions to each equation in the interval -90°<θ<270°

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2 years ago

15 Points!

goblinko [34]

Answer:

coordinate of point A is (a,b)

coordinate of point C is (2c,d)

slope of AD and BC = $\frac{b}{a-c}$

Step-by-step explanation:

According to midpoint formula

If we have points P $(x_{1} ,y_{1} )$ and Q $(x_{2} ,y_{2} )$

then the coordinate (x,y) of mid point of line PQ is given by

$x=\frac{x_{1} +x_{2} }{2}$ and $y=\frac{y_{1} +y_{2} }{2}$

now from the given diagram A is the mid point of line joining R(0,0) and S(2a,2b)

Using midpoint formula, coordinates of point A is given by

$x=\frac{0+2a}{2}= a$ and $y=\frac{0+2b}{2} =b$

so we have

coordinate of point A is (a,b)

Also C is the midpoint of line joining T (2c,2d) and V(2c,0)

coordinate of point C is given by

$x= \frac{2c+2c}{2} =2c$ and $y=\frac{2d+0}{2} =d$

so we have

coordinate of point C is (2c,d)

it is given that coordinate of point B is (a+c, b+d) and coordinate of D is (c,0)

If we have points P $(x_{1} ,y_{1} )$ and Q $(x_{2} ,y_{2} )$

then the slope of PQ = $\frac{y_{2} -y_{1} }{x_{2}-x_{1} }$

hence slope of AD= $\frac{0-b }{c-a}$

= $\frac{-b}{c-a}$

= $\frac{-b}{-(a-c)}$

= $\frac{b}{a-c}$

and slope of BC = $\frac{d-(b+d)}{2c-(a+c)}$

= $\frac{d-b-d}{2c-a-c}$

= $\frac{-b}{c-a}$

= $\frac{b}{a-c}$

so we have

slope of AD and BC = $\frac{b}{a-c}$

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2 years ago

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igomit [66]

$2x - 1 < 10\Leftrightarrow 2x < 11\Leftrightarrow x < \frac{11}{2}$

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2 years ago

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Sizes = Small, Medium and Large, so they has 3 choices for size.

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The answer would be:

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2 years ago

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