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Eva8 [605]
3 years ago
5

I have a triangle with angles measuring 40, 40, and 100. Is this one a unique triangle, many triangles, or no triangle?

Mathematics
1 answer:
juin [17]3 years ago
5 0

Answer:

Unique triangle.

Step-by-step explanation:

If you were to draw the triangle, you would've been able to see that one angle is open and that the other 2 were closed.

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What is the least common denominator for 2/3 and 3/5
ivolga24 [154]

Answer: 15

Step-by-step explanation: The common denominator for these 2 fractions is simply the least common multiple for the 2 denominators.

To find the least common multiple or <em>lcm</em> of 3 and 5, we begin by listing the first few multiples of each number.

<em>Multiples of 3</em>

1 x 3 = 3

2 x 3 = 6

3 x 3 = 9

4 x 3 = 12

5 x 3 = 15

We skipped 0 x 3 because our lcm can't be 0.

Next we list the multiples of 5.

<em>Multiples of 5</em>

1 x 5 = 5

2 x 5 = 10

3 x 5 = 15

Notice that 15 appears in both lists so

our least common denominator is 15.

4 0
3 years ago
An item is priced at $13.12. If the sales tax is 5%, what does the item cost including sales tax?
disa [49]

Answer:

$13.78

Step-by-step explanation:

to get the tax, you multiply $13.12 by 0.05, which would be 0.656. then you add that to the original price of 13.12 and round it up to get your answer

7 0
3 years ago
Please answer! will give 5 stars, brainliest (if two people answer.), 20 pts, and thanks.
Charra [1.4K]

Answer:

66

Step-by-step explanation:

Angle 2 and 4 are supplementary, so if angle 4 is 123, then 180-123=57.

So angle 2 is 57.

Then, if angle 2 and 3 are 57 and we know that all angles of a triangle have to add up to 180, then:

                             57+57+angle 1=180

                                114+ angle 1=180

                                        angle 1= 66

3 0
3 years ago
Which of the following correctly uses absolute value to show the distance between –60 and 11?
MissTica

Answer:

C) |–60 + 11| = |–49| = –49 units

Step-by-step explanation:

4 0
3 years ago
Find the length of side x using the Law of Cosines.
grin007 [14]

Answer:

The length of side x is 22.91

Step-by-step explanation:

As per law of cosine

X = \sqrt{a^2 + b^2- 2*a*bcos\gamma}

Where

gamma = 56 degrees

a = 20

b = 27

Substituting the given values in above equation, we get -  

X = \sqrt{20^2 + 27^2 - 2*20*27*cos 56} \\X = 22.91

Hence, the length of side x is 22.91

7 0
4 years ago
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