Idon’t need the answers just don’t understand how to do it can you give me an example for the first problem?

Step-by-step explanation:

You have so many questions here that doing one or two of them will hardly matter since are many more present.

Pick number 3 to start with

The left and right part of the cross will contain two numbers that multiply to 16. The numbers should be 8 and 2. Are 8 and 2 the right answers. ? They should be, because the bottom part of the cross is 8 and 2 added which is 10.

So the answer is left is 8, right is 2, bottom is 10. The 8 and 2 can be switched.

Try number nine next.

You need two numbers that multiply to 72 and that add to 18. You could use 8 and 9, but they done work. They do multiply to 72 but they only add to 17 which is not good enough.

Try 12 and 6. That looks much better. 12 * 6 does multiply to 72 so we're good so far. But the clincher is that 12 and 6 add to 18 which makes the answer right.

bottom = 12 + 6

left = 12

right = 6

Top = 12*6 = 72

Note: do all the ones that have no minus signs. When you have done that, come back and ask how to do a question that has a minus.

answer: sine

step-by-step explanation:

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.