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sammy [17]
2 years ago
5

What is the following product? startroot 30 endroot times startroot 10 endroot

Mathematics
1 answer:
aleksandrvk [35]2 years ago
7 0

Answer:

Hello there! 10 square of 3

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From a box containing 10 cards numbered 1 to 10, four cards are drawn together. The probability that their sum is even is 21 21
ankoles [38]

Answer:

Step-by-step explanation:

We know that between 1 to 10 there are 5 even and 5 odd numbers.

We could get 4 even cards , 4 odd cards or 2 odd and 2 even cards

Let´s check all this combinations

Case 1: When all 4 numbers are even:  

We are going to take 4 of the 5 even numbers in the box so we have

5C4=5

Case 2: When all 4 numbers are odd:  

We are going to take 4 of the 5 odd numbers in the box, so we have

5C4=5

Case 3: When 2 are even and 2 are odd:

We are giong to take 2 from 5 even and odd cards in the box so we have

 

5C2 * 5C2

Remember that we obtain the probability from

\frac{Number-of-favourable-Outcome}{Total-number-of-outcomes}

So we have the number of favourable outcomes but we need the Total cases for drawing four cards, so we have that:  

We are taking 4 of the 10 cards:

10C_4=210

Hence we have that the probability that their sum is even

\frac{5+5+100}{210}=\frac{11}{21}

8 0
3 years ago
What is the value of the y in te equation y-13=57
12345 [234]
70 because 70 - 13 = 57
5 0
3 years ago
Read 2 more answers
Explain the steps for simplifying square root of 162
Musya8 [376]
162 is not a perfect square therefore you have to find the largest perfect square that can go into 162 which would be 81.
5 0
3 years ago
Help: Scientists think the _____ is a solid iron with a layer of liquid iron surrounding it.
Alex_Xolod [135]
<span>The inner core is made of solid iron, and it is surrounded by the liquid iron of the outer core. It is solid because the extreme pressure at the center of the earth prevents it from melting, despite the unimaginable temperatures.</span>
3 0
3 years ago
Plz g0ive me solution
Serga [27]

Answer:

separate the x from the numbers it will make the equation easier

8 0
2 years ago
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