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3 years ago

Can you conclude that this parallelogram is a rectangle? Explain.

Mathematics

2 answers:

Angelina_Jolie [31]3 years ago

8 0

Answer:

Yes, the diagonals are congruent

Step-by-step explanation:

A triangle is a special kind of a parallelogram that has congruent sides. The sides are congruent as they have the same lengths and and angles of bisection.

In other words, the vertically opposite angles will be equal as well.

Since the angles corresponding to the sides of the vertically opposite angles are equal, it means that the sides are also congruent.

Doing a measurement with a protractor proves that the angles formed by the perpendicular lines will be right angles.

maxonik [38]3 years ago

5 0

I think it yes the diagonals are congruent but I can’t really tell

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At Lakeview middle school,there are 2 homeroom teachers assigned to every 48 students. is the number of stuff at this school pro

Zielflug [23.3K]

Yes becuase constant rate will be 24/1
and when you keep subtracting 1 to the x value & and 24 to y value it will end with 0,0 meaning its proportion

6 0

3 years ago

On the first part of a journey, Alan drove a distance of x km and his car used 6 litres of fuel.

irinina [24]

Answer:

$\frac{600}{x+20}\text{ litres per 100 km}$

Step-by-step explanation:

Given,

The number of litres consumed by car in (x+20) km = 6,

So, number of litres consumed by car in 1 km = $\frac{6}{x+20}$ ,

Now, number of litres consumed by car in 100 km = 100 × litres consumed by car in 1 km

$=100\times \frac{6}{x+20}$

$=\frac{600}{x+20}$

Hence, the rate of fuel used by his car would be $\frac{600}{x+20}$ litres per 100 km.

6 0

4 years ago

The triangle below is an equilateral triangle. Find y.<br> 10<br> y+3

Colt1911 [192]

Answer:

y = 7

Step-by-step explanation:

An equilateral triangle has all its sides to be equal..

so.

10 = x

10 = y + 3

y = 10 - 3

y = 7

6 0

3 years ago

Answer this fast with an explanation, you will get 20 points: Kristen started a stamp collection. She collected 118 stamps that

Lena [83]

Answer:

The answer is 80.

Step-by-step explanation:

Firstly we add all of the stamps

118+83+4=205

She put 125 in first album so we have

205-125=80 stamps left

These 80 she needs to put in another album

6 0

3 years ago

The revenue from selling x shirts is r(x)=12x.

kenny6666 [7]

Answer:

p(x) = 7x - 20

Step-by-step explanation:

A company makes a profit selling goods when the revenue taken in from the sales is greater than the cost of those goods: p(x) = r(x) - c(x) > 0.

In this case the revenue function is r(x) = 12x; the cost function is c(x) = 5x + 20, and the profit function is p(x) = 12x - (5x + 20), or:

p(x) = 12x - 5x - 20, or

p(x) = 7x - 20

4 0

3 years ago