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3 years ago

Here brainliest look arE the picture

Mathematics

1 answer:

satela [25.4K]3 years ago

5 0

Answer:

12p = 48

3rd option

Step-by-step explanation:

total photos =48

pages on website = 12

photos on each page = p

then,

p =48/12

that is

12p =48

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Without counting them one-by-one, how many orange

Vera_Pavlovna [14]

Nguyens swimming pool needs 12 tiles

3 0

3 years ago

Choose the method to solve the problem below: There are members on a board of directors. If they must form a subcommittee of mem

shepuryov [24]

Answer:

b. 56

Step-by-step explanation:

Please consider the complete question.

There are 8 members on a board of directors. If they must form a subcommittee of 3 members, how many different subcommittees are possible?

We will use combinations for solve our given problem.

$^nC_r=\frac{n!}{r!(n-r)!}$ , where,

n = Number of total items,

r = Items being chosen at a time.

For our given scenario $n=8$ and $r=3$ .

$^8C_3=\frac{8!}{3!(8-3)!}$

$^8C_3=\frac{8!}{3!\cdot 5!}$

$^8C_3=\frac{8\cdot7\cdot6\cdot5!}{3\cdot2\cdot1\cdot 5!}$

$^8C_3=8\cdot7$

$^8C_3=56$

Therefore, 56 different subcommittees are possible and option 'b' is the correct choice.

4 0

3 years ago

Prove the following statement. Assume that all sets are subsets of a universal set U.

nadezda [96]

Answer:

O U ⊆ A ∪ B True

O U ⊆ A ∩ B False

O A ∪ B ⊆ U True

O B ⊆ U True

O A ⊆ U True

O A ∩ B ⊆ U True

Step-by-step explanation:

To prove the first part

$\text{If} \,\,\,\,\,\, A^{c} \subseteq B \,\,\,\,\,\text{then} \,\,\,\,\, A \cup B = U$

Remember that any set is a subset of the universal set. Therefore it is true that

$A \cup B \subseteq U$

Now, given any $x \in U$ it is true that

$x \in B \,\,\,\, \text{or} \,\,\,\, x \notin B$

Now according to the information given initially

$\text{If} \,\,\,\,\, x \notin B \,\,\,\,\, \text{then} \,\,\,\,\, x \notin A^{c}$

And then you know that

$\text{If} \,\,\,\,\, x \notin A^{c} \,\,\,\,\,\text{then} \,\,\,\,\,\,\, x \in A$

Therefore $U \subseteq A \cup B$ and using double inclusion

$U = A \cup B$ .

Now using the information just exposed

O U ⊆ A ∪ B True

O U ⊆ A ∩ B False

O A ∪ B ⊆ U True

O B ⊆ U True

O A ⊆ U True

O A ∩ B ⊆ U True

4 0

3 years ago

3lnx + 4lny - ZInz Simplify.

IrinaVladis [17]

Answer:

$3lnx + 4lny - zlnz \\ = ln(3x - 4y - {z}^{2} )$

hope this helps....!

7 0

4 years ago

Plz this is due today help me explain the answer

Natali [406]

Answer:

177.3 feet

This is a classic find the vertex of a parabola question.

if this was a calculus class the solution would be to take the derivative and set it equal to zero... -32t+ 105 = 0

BUT i assume that you are not in a calculus class..

so we try plan "B" the highest (or lowest) point of parabola is it's vertex

the vertex formula is [-b/2a,f(-b/2a)]

in your problem a = -16, b=105, c= 5

so the "X" (TIME) is located at -(105)/(2*-16) = 3.28

plug in 3.28 into -16(3.28)^2 + 105(3.28) + 5 = 177.27

and you will get

Step-by-step explanation:

4 0

3 years ago