A committee of seven senators are divided into sub committees containing three. How many sub committees are there?

A committee of seven senators are divided into sub committees containing three. How many sub committees are there?

n(A∩B)

a supermarket compiled the following information regarding 30 of its employees. 8 worked in the produce department, 9 stacked food on shelves, 18 operated the cash register, 4 worked in the produce...

Is there any way to prove that - Every point in A intersect B is greater than or equal to 1? - The intersection of two sets has a point in common with another...

In the figure ξ is the set of all students in Secondary One. (The figure shows a Venn diagram with two overlapping circles. There is only 1 intersection, labeled y. The left circle is represents...

There are 35 girls in a class. 18 of these girls are in Dance and 21 girls are in Band. Given that ξ = {Girls in the class} D = {Girls who are in Dance} B = {Girls who...

its about set and notation book answer is 17

i want to know the mean of the above equation..

Let X : [0,1] → R. Find inverse images of all intervals [a,b] for X(x) = 2 *1[0,½) (x) + 3 * 1[½,1] (x) Can someone please provide a solution to this

For a subset x⊆R: 'X is dense in R implies that x∩Q≠Ø

(CΔB)-A=(C-A)Δ(B-A)

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A finite set is called even if it has an even number of elements.Let n be an even integer such as n greater than or equal to 2 and let S1, . . . ,Sn be even subsets of S = {1,2, ....

Hello! I just wanted to see if my answer is correct. Would someone please check this..Thanks in advance😀 Universal/Union = { a,b,c,d,e,f,g,h} A = {a,b,c,d} ...

Which of the following formulae represent f? Select one or more: A. (P ^ Q) v (Q ^ R) B. (¬P ^ ¬Q ^ R) v (P ^ Q ^ ¬R) C. (Q → P) v (R → Q) D. (R → (¬P ^ ¬Q))...

Deﬁne f(x) : P({a,b,c}) →N as follows: for all A ∈P({a,b,c}), f(A) = the number of elements in A. ( P is a power set.) Is f one-to-one? Prove or give a counterexample. Is f onto? Prove...

Determine whether the given set is a subspace of P3. Explain why. A = {p(t) = at^3+bt} Where a and b are both elements of the Reals.

Im wondering, because several sources state that the empty set is a subset of EVERY set. Yet this instance seem to be proving that statement wrong. Update: To be more specific...

Write in Roaster form - set of natural numbers whose square root is less than 30

Subset for {7,19,4,20}

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