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Mathematics

2 answers:

alexgriva [62]2 years ago

5 0

Answer:

hello, i am not sure. but the answer is between a and c

Step-by-step explanation:

Thepotemich [5.8K]2 years ago

5 0

Answer:

not sure but... i think it is c

Step-by-step explanation:

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On Earth, 1kg=9.8N=2.2lbs. On the moon, 1kg=1.6N=0.37lbs

Trava [24]

A.50*9.8
B.50*1.6
C.45.359237
D.45.3*1.6

8 0

3 years ago

There are 40 people at Drake's sweet sixteen party. Drake's only rule is that everyone in the party must meet and shake each oth

nikdorinn [45]

1) This is a combination, so use ⁴⁰C₂.
⁴⁰C₂ = 780
There are 780 handshakes in total.

2) I got my solution by using the combinations formula. Or another way you could do this is to add up... 39 + 38 + 37 + 36 + 35 + 34 + 33 + 32 + 31... +1. You will end up with 780 (I did this to double check my work).

3) The quickest way to figure this out if Drake invited 1,000 people is to use the natural numbers formula = n(n+ 1)/2.
Plug the numbers in: 999(1000)/2 = 499,500
If Drake invited 1,000 people, there would be 499,500 handshakes.

7 0

3 years ago

Read 2 more answers

Find the Number in Each Case

ipn [44]

It seems like you have the answer already. but heres how its calculated.
$\frac{100}{15} = \frac{?}{3}$
so the missing number is 20 **cross multiply 100 and 3 to get 300 then divide 15 into 300 to get 20**

$\frac{160}{100} = \frac{80}{?}$
so the missing number is 50
**cross multiply 100 and 80 to get 8000 then divide 160<span> into 8000 to get 50**</span>

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3 years ago

The librarian purchased 22 copies of a best-selling book for $385.66.

kow [346]

Answer:

$17.53

Step-by-step explanation:

$385.66 divided by 22 equals the how much each book cost

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3 years ago

Use complete sentences to explain why |x|+2>|x|

Anna007 [38]

The absolute value of an given number is always positive. So, when adding two to any positive number will always be greater than the number by itself.

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3 years ago