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Ivanshal [37]
3 years ago
8

The total number of subsets of {A,B,C} is ?

Mathematics
2 answers:
Ksenya-84 [330]3 years ago
7 0

The total number of subsets that can be derived from the given set is given by the formula 2 n where n is the number of elements present in the set.Here in the given set n=3

Number of subsets = 2 3    = 8 subsets are formed.


nexus9112 [7]3 years ago
3 0
Remember, the number of subsets of a set is 22^n, where n is the number of elements in the set. Thus, it is 2³ = 8. If you want a proof for that, ask in comments below.
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2 years ago
Solve the equation for x, where x is a real number (5 points): <br> -5x^2 + 7x + 41 = 32
wel
Subtract 32 to both sides to the equation becomes -5x^2 + 7x + 9 = 0.

To solve this equation, we can use the quadratic formula. The quadratic formula solves equations of the form ax^2 + bx + c = 0
                   x = [ -b ± √(b^2 - 4ac) ] / (2a)
                   x = [ -7 ± √(7^2 - 4(-5)(9)) ] / ( 2(-5) )
                   x = [ -7 ± √(49 - (-180) ) ] / ( -10 )
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6 0
3 years ago
Of all the students that Mikey surveyed, 30% said they play baseball. If 21 students play baseball, how many students did Mikey
Ulleksa [173]

Answer:

70 students

Step-by-step explanation:

As, 30% Mike surveyed

And these 30% are 21 students

So 30% of X = 21

= 30/100 x X = 21

= 30X = 2100

So X = 2100/30

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5 0
2 years ago
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NNADVOKAT [17]

Answer:

Part A) The proportional equation is c=55h

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Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

Let

c -----> the cost to hire a dog

h ----> the amount of time in hours

The linear equation is equal to

c=kh

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Find the value of k (constant of proportionality)

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substitute the values

k=660/12=55

therefore

The linear equation is

c=55h

For c=\$440

Find the value of h

substitute in the equation and solve for h

440=55h

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5 0
3 years ago
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prisoha [69]

Answer:

x/y=2/9

y = 9/2 x

Step-by-step explanation:

hope it's helpful ❤❤ THANK YOU.

4 0
3 years ago
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