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guapka [62]
4 years ago
14

If n(A)=80,and n(B)=65,what is the least value of n(AuB)=? please help me friends

Mathematics
1 answer:
asambeis [7]4 years ago
5 0

Answer:

Step-by-step explanation:

n(AUB)=n(A)+n(B)-n(A∩B)

greatest intersection of (A∩B)=65

n(A∪B)=80+65-65=80

so least value of n(A∪B)=80

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2( <br> 5<br> 1<br> ​ <br> m− <br> 5<br> 2<br> ​ <br> )+ <br> 5<br> 3<br> ​
Fantom [35]

Answer:

uh I need the question...

Step-by-step explanation:

5 0
3 years ago
Find the equations of the lines for the following. Your answer should be in the form y=mx+b.
spin [16.1K]

Answer:

1 ) y = 2x - 1

slope = 2

y intercept is (0,-1)

2) y = -1/2x + 5

slope = -0.5

y intercept  = (0,5)

Step-by-step explanation:

4 0
3 years ago
Given the function defined below, what is the value of the 4th term?
MakcuM [25]

Answer:

The 4 t h term is   f(4)   = 143

Step-by-step explanation:

<em>Explanation</em>:-

Given  function f(1) = -4

Given 'nth' term is  f(n) = -3f(n-1) +5

Put n =2         <em> f(2) = -3 f(2-1) +5</em>

                             = -3 f(1) +5

                             = -3 (-4) +5

                             = 12 +5

                       f(2) = 17

put n= 3      

                         f(n) = -3f(n-1) +5  

                      <em>   f(3) = -3 f(3-1) +5</em>

                            = -3f(2) +5

                           = -3(17) +5

                           = -51+5

                      f(3) = -46

Put n=4

                  f(n) = -3f(n-1) +5

               <em>  f(4)  = -3f(4-1) +5</em>

<em>                  f(4)  = -3f(3)+5</em>

                f(4)   = -3(-46)+5

                f(4)   = 138 +5

                f(4)   = 143

<u><em>Final answer</em></u>:-

<em>The 4 t h term is   f(4)   = 143</em>

         

6 0
3 years ago
Which expression is equivalent to LaTeX: \frac{3}{4}x+5-7+\frac{1}{2}x3 4 x + 5 − 7 + 1 2 x?
poizon [28]

Answer:

25

Step-by-step explanation:

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3 0
3 years ago
I need a check so just want some help​
bazaltina [42]

Answer and Step-by-step explanation:

We are told that AB is equal to 3x + 1.

BC is then half of AB, or \frac{3x+1}{2}.

AC is then 4 less than BC, or (\frac{3x+1}{2} ) -  4

To find the perimeter, we add all of these together.

3x + 3x/2 + 3x/2 = 6x

1 + 1/2 + (1/2 - 4) = -2

The final answer is 6x - 2.

#teamtrees #WAP (Water And Plant)

8 0
3 years ago
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