What is the value of 3ab+ 5b -6 when a=-1 and b=3

Hello my friend! The answer is ZERO!

Step-by-step explanation:

If we substitue the values of "a" and "b" on the equation, will have:

3*(a*b)  + 5(b)  -6 =

3 * (-1 * 3)  +   5*(3)   - 6 =

-9 + 15 - 6 = 0

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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