The expression(x 12) (y-13) (x-5) (y 4) is equivalent to xmxy. what is the value of n?
7
-9
-2
9

  -9

Step-by-step explanation:

The applicable exponent rule is ...

   a^b·a^c = a^(b+c)

___

For the y factor, ...

  y^-13 · y^4 = y^(-13+4) = y^-9 . . . . . exponent of -9

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

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