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poizon [28]
3 years ago
11

How many odd numbers with 4 different digits, can be formed using the digits 1, 2, 3, 4, 5, 6, 7, 8? (No repetition is allowed)

Mathematics
1 answer:
olga55 [171]3 years ago
6 0

Answer:

840 ( D )

Step-by-step explanation:

GIVEN DIGITS : 1,2,3,4,5,6,7,8  

Number of odd numbers = 4

Number of even numbers = 4

therefore the number of odd numbers with 4 different digits can be formed by the same way the number of even numbers ( without repetition )

Hence the number of ways odd numbers with 4 different digits = Total number of ways of forming 4 digit numbers / 2

8*7*6*5 = 1680 / 2 =  840 ways

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Answer:

Nia did the chores the more

Step-by-step explanation:

100 is more than 20

5 0
2 years ago
One side of a rectangle is 20 cm larger than the other side. If you make the smaller side two times larger and the larger side t
grandymaker [24]
Let L be the length
Let w be the width
Let p be the perimeter
L+w+L+w=p
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Sub the first equation in for L in the second equation and solve for w
3(w+20)+2w+3(w+20)+2w=240
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Hope this helps!
3 0
3 years ago
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yawa3891 [41]

Answer:

x=8

Step-by-step explanation:

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8 0
3 years ago
12. The circumference of a quarter is about 76 mm. What is
77julia77 [94]

Answer: A= 460 mm2

Step-by-step explanation:

Hi, since the circumference formula is :

C = 2 π r

Where r is the radius, we can solve the formula for the radius replacing with the value given:

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76 / (2 π) = r

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A = π r^2

A = π (12.1)^2

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Feel free to ask for more if needed or if you did not understand something.

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sp2606 [1]

Answer:

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y∝x

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= 12

(Correct me if i am wrong)

8 0
3 years ago
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