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kodGreya [7K]
2 years ago
14

Tell whether the following set is an empty set or not.

Mathematics
2 answers:
Liono4ka [1.6K]2 years ago
7 0

Answer:

It is not an empty set

Step-by-step explanation:

A quadrilateral with 3 obtuse angles is possible.

A obtuse angle has a measure of more than 90 degrees and less than 180 degrees.

Let’s say three angles are measuring 91 degrees in a quadrilateral.

91 + 91 + 91 + x = 360

x = 87

The measure of the fourth angle is 87 degrees which is less than 360 degrees and is a positive integer, so it is possible.

igor_vitrenko [27]2 years ago
4 0

Answer:

It is not an empty set

Step-by-step explanation:

Obtuse angles are angles greater than 90 and less than 180.

There are quadrilaterals having 3 obtuse angles and they are possible.

If we imagine 3 obtuse angles of 91 degrees (obtuse angle), the 4th angle will be

360-91-91-91

=> 87 degrees

So, This quadrilateral can be constructed!

And also with 92, 93, 94 and so on!

So, Set A is not an empty set!

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Geometry Does a SSSS congruence relationship exist for parallelograms? If so explain why. If not, create a counter-example Geome
Lady_Fox [76]

We need to notice that SSSS does not exist as a method to prove that parallelograms are congruent

Counterexample

As we can see we have the same measure of the side of the intern angles of the figures are different therefore we can't use SSSS to prove congruence

3 0
7 months ago
the tennis team wants to purchase tshirts for its members . company A charges a$20 setup fee and $8 per shirt company B charges
MA_775_DIABLO [31]

Answer:

1) 5 2) the first one

Step-by-step explanation:

1)

since the first time multiplying 8 to get a two digit number ending in zero is forty, i multiplied both by 5

2) 8 times 12= 96+20=116

   10 times 12=120 (already too much)+10=130

i hope this helps u

pls give a brainliest (i only need one more!) and a thx

6 0
3 years ago
How do you get the answer for 10 millimeters increased by 30%
tiny-mole [99]
First you have to find what 30% of ten is, and then add it to the 10. So how do you find 30 % of 10? In math...

"of" means ×
"is" means =

30% of 10 is
30 % × 10 =

change 30% to a decimal by dividing by 100 ( move the decimal to the left 2 places)

.30 × 10 = 3

So 30% of ten is 3. Now since we are increasing by 30%, we have to add it to the original value, 10.

3 + 10 = 13

So 10 millimeters increased by 30% is

13 millimeters
8 0
2 years ago
Find the equation of the line passing through the points (1,5) and (3,9)​
Arada [10]

Answer:

  • \boxed{\sf{2}}

Step-by-step explanation:

Use the slope formula.

\underline{\text{SLOPE:}}

\Longrightarrow: \sf{\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{Rise}{Run} }

\sf{y_2=9}\\\\\\\sf{y_1=5}\\\\\\\sf{x_2=3}\\\\\\\sf{x_1=1}

\sf{\dfrac{9-5}{3-1} }

Solve.

\sf{\dfrac{9-5}{3-1}=\dfrac{4}{2}=\boxed{\sf{2}}

  • <u>Therefore, the slope is 2, which is our answer.</u>

I hope this helps. Let me know if you have any questions.

8 0
1 year ago
Which of these is not a possible r-value
soldier1979 [14.2K]

Answer:

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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