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2 years ago

Can you conclude that the parallelogram is a rhombus, a rectangle, or a square? Explain. PLEASE HELP! WILL MARK BRAINLIEST!!!!

Mathematics

1 answer:

ludmilkaskok [199]2 years ago

5 0

Answer: A parallelogram is a rectangle.

Step-by-step explanation:

This is always true. Â Squares are quadrilaterals with 4 congruent sides and 4 right angles, and they also have two sets of parallel sides. Parallelograms are quadrilaterals with two sets of parallel sides. ... A parallelogram is a rectangle.

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Eugenia walked all the way to school at 3 mph then realized she forgot her math book (how could she?!), so she ran back at 7 mph

kondor19780726 [428]

Let us say distance between Eugenia's home and school is x miles.

Speed of Eugenia when she walked from home to school = 3 mph

Speed of Eugenia when she walked from school to home = 7 mph

Total time taken = 45 minutes or 0.75 hours

We know that the speed distance formula is given by:

$speed=\frac{distance}{time}$

$time=\frac{distance}{speed}$

Time taken by Eugenia when she walked from home to school = x/3 hours

Time taken by Eugenia when she walked from school to home = x/7 hours

Total time taken = x/3+x/7

So forming an equation we have,

$\frac{x}{3}+\frac{x}{7}=0.75$

Taking lcd of 7 and 3 as 21,

$\frac{7x}{21}+\frac{3x}{21}=0.75$

$\frac{10x}{21}=0.75$

10x=15.75

Dividing both sides by 10 , we have

x= 1.575

Answer: So we can say that the distance between Eugenia's house and school is 1.575 miles.

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3 years ago

Write 0.0000004954 in scientific notation.

SCORPION-xisa [38]

By scientific notation I am assuming you mean standard form, as that is used primarily in scientific calculations. The answer in standard form would be
$4.954 \times {10}^{ - 7}$
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3 years ago

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Answer: $\frac{6}{25}$

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Hope this helped you!

Step-by-step explanation:

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