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3 years ago

Sheena claims that all quadrilaterals are rectangles. which of the statements below disproves sheena’s claim?

Mathematics

2 answers:

Ede4ka [16]3 years ago

8 0

Answer:

A quadrilateral is defined as a polygon which has 4 sides, that's it. If the quadrilateral has equal angles or equal sides is not the matter, the definition is just about the number of sides.

So, if Sheena claims that all quadrilaterals are rectangles, she is completely wrong, because to a quadrilateral become a rectangle, opposite sides have to be congruent and parallel, also angles must be equal to 90°, and these elements is not derived from the definition of a quadrilateral.

Therefore, quadrilaterals' definition is too general to make the claim Sheena is doing.

Bond [772]3 years ago

4 0

Quadrilaterals are shapes that have 4 sides.So it's not only rectangles.

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Three less than the product of 6 and a number is 45. What is the number?

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Step-by-step explanation:

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2 years ago

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3 years ago

Peyton is collecting data on the lunch habits of students at Hyattsville Middle School. In one class, 14 students bring lunch fr

mart [117]

Answer:

Answer: Around 1000 students would buy a school lunch.

Step-by-step explanation:

We know that in one class, 14 students bring lunch from home, and 20 buy lunch in the school. This will be our sample.

In total we have 20 + 14 = 34 students, this will be our 100%.

The percentage of students that bring lunch from home can be estimated as the quotient between the number of students that bring lunch from home and the total number of students, times 100%.

p1 = (14/34)*100% = 41.18%

And the percentage of students that buy lunch at school can be computed in the same way:

p2= (20/34)*100% = 58.82%

Then, out of the 1700 students in middle school, we can estimate that around 58.82% of them will buy lunch in the school.

Then the exact number will be:

N = (58.82%/100%)*1700 = 1000

Around 1000 students would buy a school lunch.

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2 years ago

Help me with my math please, it’s 6th grade

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The one that has -7 and -13 on the first line.

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3 years ago

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Harlamova29_29 [7]

Answer:

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Step-by-step explanation:

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3 years ago

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