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Ulleksa [173]
3 years ago
9

Can you please do 41 ,42 , 44 and 45

Mathematics
1 answer:
patriot [66]3 years ago
5 0

Answer:

41. 1/144

42. 6

44. C

45. D

Step-by-step explanation:

41. Chance of rolling one twelve is 1/12. Then, the chance of rolling 2 is 1/12*1/12 = 1/44

42. Since there are 25 students in the class, the middle value, 13, will be the median. The 13th number is a 6, therefore, the median is a 6.

44. We know that this is a triangle because 50+50+80=180 (triangle sum theorem). Since this works, by the principles of simular triangles, we can have infinite number the triangles which warrants the solution of more than 1.

45. x is negative so it is less than 0. However, y is greater than OR equal to 0. This means we can have two solutions. z is negative or z is 0.

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The value of "a" is 4

<em><u>Solution:</u></em>

<em><u>Given expression is:</u></em>

a - 2  = -1 + 2a - 4-1

The above expression involves variables and constants

A variable is a symbol that represents an unknown number

Here the variable is "a"

Constants are fixed numbers like 1, 2 etc

<em><u>From given expression:</u></em>

a - 2  = -1 + 2a - 4-1

Move the varibale "2a" from right side to left side of equation

When, 2a is moved from R.H.S to L.H.S, it becomes -2a

a -2a - 2 = -1 -4-1

Now move the constant -2 from left side to right side of equation

Similarly, when -2 is moved from L.H.S to R.H.S, it becomes +2

a-2a = -1-4-1+2

Now add the variables on left side of equation

-a = -1-4-1+2

Now add the constants on right side of equation

-a = -6+2\\\\-a = -4

Cancel the negative sign on both sides of equation

a=4

Thus the value of "a" is 4

6 0
3 years ago
The sum of two numbers is 36. Twice the fist number minus the second is 6. Find the numbers.
yan [13]
The sum of two numbers
6x6=36
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ANSWER
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3 years ago
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