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2 years ago

Which of the following sets of numbers could not represent the three sides of a triangle?

Mathematics

1 answer:

Setler [38]2 years ago

5 0

Answer: the sets that cannot represent the three sides of a triangle are: [15,27,44]

Step-by-step explanation: because you add the 2 smallest numbers so in this you would add 15 + 27 and it equals 32. so therefore the number that you get from adding 5 and 27 or any small number would have to be bigger then the third number.

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If xy=5 and x square +y square =25 ,then (x+y)square

nika2105 [10]

Answer:

(x + y)² = 35

Step-by-step explanation:

The expansion of

(x + y)² = x² + 2xy + y²

= x² + y² + 2xy ← substitute given values

= 25 + 2(5)

= 25 + 10

= 35

8 0

3 years ago

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For any circle, which ratio is equal to the number n? Select all that apply. Plsss help me!!

barxatty [35]

Answer:

Options A-C-F

Step-by-step explanation:

we know that

<em>The circumference of a circle is equal to</em>

$C=\pi D$ or $C=2\pi r$

where

D is the diameter and r is the radius

therefore

$\pi =\frac{C}{D}$ or $\pi =\frac{C}{2r}$

The number pi is the ratio circumference - diameter or is the ratio circumference - 2 times radius

<em>The area of the circle is equal to</em>

$A=\pi r^{2}$

therefore

The number pi is the ratio Area - radius squared

6 0

3 years ago

K(1,0), L(4,1), M(1,4), N(-2, 3) 90% counterclockwise rotation

docker41 [41]

Answer:

K (0,1)

L (-1,4)

M (-4,1)

N (-3,-2)

Step-by-step explanation:

When you rotate a figure 90 degrees counterclockwise about the origin, the points all change from (x,y) to (-y,x). Therefore the points would go from: (answers on right side)

K (1,0) ---> K (0,1)

L (4,1) ---> L (-1,4)

M (1,4) ---> M (-4,1)

N (-2,3) ---> N (-3,-2)

5 0

3 years ago

Line n has a slope of 1/2. line m is perpendicular to line n. What is the slope of line m

Bezzdna [24]

Answer:

-2

Step-by-step explanation:

Sincwe perpendicular slope are the opposite reciporcal

5 0

3 years ago

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Hi... can you tell me is this formula is right or wrong??

Llana [10]

Answer:

this formula is right

6 0

3 years ago