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2 years ago

What are the names to these quadrilaterals

Mathematics

2 answers:

Digiron [165]2 years ago

5 0

Answer:

From left to right:

pentagon

quadrilateral

rhombus

parallelogram

Step-by-step explanation:

From left to right:

First polygon:

5 sides, pentagon. This pentagon has two sets of congruent sides, but there is no special name for it.

Second polygon:

4 sides, quadrilateral. This quadrilateral has 3 congruent sides, but there is no special name for it.

Third polygon:

4 sides, quadrilateral. All sides are congruent. It is a rhombus. A rhombus is also a parallelogram.

Fourth polygon:

4 sides, quadrilateral. There are two pairs of congruent sides. It is a parallelogram.

olga_2 [115]2 years ago

4 0

Answer:

The top left one is a pentagon, the lower left is a quadrilateral, the top right is a rhombus, and the bottom left is a parallelogram.

Step-by-step explanation:

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3 years ago

At one gym, there is a $12 start-up fee, and after that each month at the gym costs $20. At another gym, it costs $4 to startup,

mart [117]

Answer:

In 4 months the cost of both gyms will be the same.

Step-by-step explanation:

At first we need to model the function to calculate the cost of the 2 gyms.

Slope-intercept equation of linear function

$f(x)=mx+b$

where

$m\rightarrow$ slope of line

$b\rightarrow$ y-intercept

Let linear function to calculate total cost of gym be:

$c(n)=mn+b$

where

$c\rightarrow$ total cost of gym

$m\rightarrow$ cost per month (slope)

$n\rightarrow$ number of months

$b\rightarrow$ start-up fee (y-intercept)

For Gym 1

$m=20$ , $b=12$

$c(n)=20n+12$

For Gym 2

$m=22$ , $b=4$

$c(n)=22n+4$

In order to find the number of months the cost of both gyms will be the same, we need to equate both functions and solve for number of months $(n)$

$20n+12=22n+4$

$\\\textrm{Subtracting 22n from both sides}\\20n-22n+12=22n-22n+4\\-2n+12=4\\\textrm{Subtracting 12 from both sides}\\-2n+12-12=4-12\\-2n=-8\\\textrm{Dividing both sides by -2}\\\frac{-2}{-2}n=\frac{-8}{-2}\\n=4\textrm{ months}$

So,

In 4 months the cost of both gyms will be the same.

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3 years ago

The area of a rectangle is 14 square units it has side lengths a and b

Travka [436]

The sides could be 1,14 or 2,7

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3 years ago

What are the names to these quadrilaterals ​

What are the names to these quadrilaterals