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algol13
3 years ago
15

I really need help with this please I keep getting it wrong and I’m confused

Mathematics
1 answer:
Nikitich [7]3 years ago
5 0
18+5= n
n= 23
D. 23
15+5=20 so u just gotta add 5 to 18
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Determine the greatest common factor for the pair of numbers.
Mnenie [13.5K]

Answer: C

<u>Step-by-step explanation:</u>

     28                 40

      ∧                   ∧

     4 7               4 10

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40: <u>2 * 2</u> * 2 * 5

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GCF: 2 * 2 = 4


4 0
3 years ago
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EASY QUESTION ABT MATH HELP PLEASE
kolbaska11 [484]

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7 0
3 years ago
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saveliy_v [14]

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7 0
3 years ago
From a shipment of 65 transistors, 6 of which are defective, a sample of 5 transistors is selected at random.
Vladimir79 [104]

Answer:

a) 8259888

b) 34220

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Step-by-step explanation:

Given,

The total number of transistor = 65,

In which, the defective transistor = 6,

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Since, out of these transistor 5 are selected,

a) Thus, the number of ways = the total possible combination of 5 transistors = {65}C_ 5

=\frac{65!}{(65-5)!5!}

=8259888

b) The number of samples that contains exactly 3 defective transistors = the possible combination of exactly 3 defective transistors = {6}C_3\times {59}C_2

=\frac{6!}{(6-3)!3!}\times \frac{59!}{(59-2)!\times 2!}

=20\times 1711

=34220

c) The number of sample without any defective transistor = The possible combination of 0 defective transistor = ^6C_0\times ^{59}C_5

=1\times 45057474

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5 0
3 years ago
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Marysya12 [62]
To find the answer we must take the LCM of 2,4 & 5.
LCM= 20
∴All animals will land together on the 20th stone.
5 0
3 years ago
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