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Len [333]
3 years ago
8

because the angles in a rectangle are 90 degrees it is not a parallelogram true or false? please explain why

Mathematics
1 answer:
ra1l [238]3 years ago
6 0
<span>A parallelogram is a 4-sided shape where opposites sides are parallel. A rectangle is a special case of a parallelogram. All rectangles are parallelograms.

But a rectangle is a shape where opposites sides are parallel *and* all the corners are 90 degree angles. So you can't say that all parallelograms would be rectangles. Some parallelograms would be rectangles, but not all.

Rectangles are a subset of the shapes called parallelograms. But parallelograms are *not* a subset of the shapes called rectangles.

It's similar to saying all cars are vehicles. But you can't say that all vehicles are cars. </span>
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alexgriva [62]

Answer:

c. domain: {-2, 0, 2}, range: {-1, 1, 3}

Step-by-step explanation:

Given:

There are three points on the graph.

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The points are (-2,-1),(0,1),\textrm{ and }(2,3)

Domain is the set of all possible x values. Here, the x values are -2, 0 and 2.

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Range is set of all possible y values. Here, the y values are -1, 1 and 3.

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Mary drove 355 miles using 17 gallons of gas. At this rate, how many gallons of gas would she need to drive 284 miles?
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tia_tia [17]

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Step-by-step explanation:

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Someone help me to work this problem please
zhenek [66]

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klasskru [66]
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{x+2y+2z=0
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