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levacccp [35]
3 years ago
15

Alexander is counting his money from his piggy bank. he stacks four quarters per pile. there are 21 piles of quarters.

Mathematics
1 answer:
Sati [7]3 years ago
6 0

Answer:

He has 84 quaters

Step-by-step explanation:

all you really have to do is multiply 4 times the number of stacks and you get 84

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Please help I really need it​
masha68 [24]

Answer:

There's 2: I've attached an image.

Step-by-step explanation:

Lines of symmetry are found when you fold it, and it's exactly the same on both sides of the line that you folded it.

If your teachers ask, no, it cannot be diagonal. The triangles would not match up.

6 0
2 years ago
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What is the area of this trapezoid?
pantera1 [17]

Answer:

Area=80 units squared

A=base*height

A=base*height/2

Step-by-step explanation:

7*8=56/2=28

7*8=56/2=28

3*8=24

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80

5 0
4 years ago
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There are 9 balls in a hat .The balls are numbered 1-9 you need to choose 3 of the balls . How many possible combinations are th
Virty [35]

Answer:

84

Step-by-step explanation:

Combinations

nCr

n (objects) = 9

r (sample) = 3

9C3

n! / r! (n – r)!

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9! / (3! * 6!)=

9*8*7*6!/ (3! * 6!)=

6! cancels out

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84

3 0
2 years ago
PLEASE HELP ME FAST!!
zepelin [54]

Answer:

the correct answer is B

Step-by-step explanation:

5 0
3 years ago
The square tile has an area of 324 square inches. What is the perimeter
solniwko [45]
Square root of 324 = 18 inches.

Perimeter = 18 inches x 4 = 72 inches.

18 times 4 because each side of square tile equals to 18 inches and there's 4 sides.

The answer is 72 inches.

Hope this helps.
6 0
3 years ago
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