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3 years ago

What is the equivalent expression for 2/3 - 4/5 ?

Mathematics

1 answer:

Brrunno [24]3 years ago

8 0

Answer:

-2/15

Step-by-step explanation:

Generally, if two things are the same, then it is called equivalent. the equivalent expressions are the expressions that are the same, even though the expression looks different.

we can see -

2/3-4/5= -2/15

and

-2/15 = 2/3-4/5

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How many triangles can be constructed using angle measurements 81°,52°,47° ? exactly one triangle

MrMuchimi

More than one triangle because it has to measure up to 180°

81 + 52 + 47 = 180

(Example) If you had a triangle that has the measurements 123 and 60 it would add up to be 183 so it would not be possible because the sum of all triangles cannot exceed 180°

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3 years ago

Read 2 more answers

What is the product of 3/5 and 25. Is the product more or less than 14? Explain your answer in complete sentences.

aliya0001 [1]

Answer:

Yes, it is larger then 14.

Step-by-step explanation:

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3 years ago

5400000 in scientific notation

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In scientfic notation, it would be:

5.4 * 10^6

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4 years ago

ABC is an equilateral triangle .Three distinct points are marked on each sides of the triangle. (not on the vertices). (i) How m

iVinArrow [24]

The number of lines and triangles illustrates combination

36 lines can be drawn to join the nine points
84 triangles can be drawn using the nine points

<h3>The number of lines that can be drawn</h3>

The given parameters are:

Total points, n = 9

Total points on each line, r = 2

The number of lines that can be drawn is then calculated using the following combination formula

Lines = nCr

This gives

Lines = 9C2

Evaluate the combination expression

Lines = 36

Hence, 36 lines can be drawn to join the nine points

<h3>The number of triangles that can be drawn</h3>

The given parameters are:

Total points, n = 9

Total points on each triangle, r = 3

The number of triangles that can be drawn is then calculated using the following combination formula

Triangles = nCr

This gives

Triangles = 9C3

Evaluate the combination expression

Triangles = 84

Hence, 84 triangles can be drawn using the nine points

Read more about combination at:

brainly.com/question/11732255

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2 years ago

Find x to the nearest tenth

Sphinxa [80]

<h3>Answer: x = 14.3</h3>

=========================================================

Explanation:

We can find x using the law of sines, but first we need to find the missing angle. Let's call that y for now. The three angles of any triangle add to 180, so,

23+146+y = 180

169+y = 180

y = 180-169

y = 11

The missing interior angle is 11 degrees.

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Now we can apply the law of sines.

sin(23)/x = sin(11)/7

7*sin(23) = x*sin(11)

x*sin(11) = 7*sin(23)

x = 7*sin(23)/sin(11)

x = 14.3343236728824

x = 14.3

Make sure your calculator is in degree mode.

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3 years ago