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3 years ago

Where should string be attached to triangular-shaped pieces of cardboard so they will balance out the mobile

Mathematics

2 answers:

padilas [110]3 years ago

6 0

The answer is D. the centroid

Rus_ich [418]3 years ago

5 0

Answer: Option 'D' is correct.

Step-by-step explanation:

Since we know that

Incenter - It is the centre of the incircle of the triangle and it is the point of intersection of the angle bisectors of the triangle.

Circumcenter - It is the point of intersection of perpendicular bisectors of the triangle. It is also the center of circumcircle.

Orthocenter - It is the point of intersection of the altitudes.

Centroid - It is the point of intersection of the medians.

String should be attached to triangular shaped pieces of cardboard, so they will balance out the mobile at the centroid because medians divide the triangle into equal parts.

Hence, Option 'D' is correct.

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Are these correct? If not help me please??

Verizon [17]

Answer: no, no, yes, no, yes, yes

Step-by-step explanation:

x + 1, 2x, these are not equivalent

10x, 5(x+5)

5(x+5) distribute the 5 to get 5(x+5) = 5x + 25

5x + 25 is not equal to 10x, so no

1 + 2x = 2x + 1, these are equivalent since the constant and coefficients are the same

yes

2x, 2x - 5, these are not equivalent since once has a constant of -5 while the other does not

15x -1, 3(x+4x) - (3-2)

3(x+4x) - (3-2) combine like terms

3(5x) - (1) multiply through parentheses

= 15x -1

so 15x - 1 = 3(x+4x) - (3-2), these are equivalent

yes

1/2 * (4x-2),2x-1

1/2 * (4x-2) multiply through parentheses to get

2x - 1

so these two are equivalent

yes

3 0

3 years ago

Read 2 more answers

He following formula is used in economics to find a factory's unit labor cost UUU, where OOO is the hourly output per worker and

Vilka [71]

Answer:

W = O/U

Step-by-step explanation:

U/1 = O/W

WU=O

W = O/U

4 0

3 years ago

1) a) The formula for simple interest is:

Grace [21]

A)I=PTR/100 b)i)T=I*100/PR ii)R=I*100/PT iii)P=I*100/TR

3 0

3 years ago

Plz Help !!!

Morgarella [4.7K]

Answer:

3962.96 is the radius

Step-by-step explanation:

r=C

2π=24900

2·π≈3962.95808

Hope this helps. I'm really sorry. We all struggling out here. We can do it!!

5 0

2 years ago

. Round off the answer correctly.. . 8.7 g + 15.43 g + 19 g = 43.13 g . . a. 43.130 g. b. 43.1 g. c. 43 g. d. None of the abov

arsen [322]

<span>Round off the answer correctly.. . 8.7 g + 15.43 g + 19 g = 43.13 g .
a. 43.130 g.
b. 43.1 g.
c. 43 g.
d. None of the above..
From the above given answers , most appropriate answer is "43.1" g. as according to the rounding rules, if the last number of digit is smaller than 5, then </span> <span>we leave the digit we want to round to alone.</span>

3 0

3 years ago