How do you do this 2 problems me its a picture find the area thabk

22.8

Step-by-step explanation:the 3.4 doesn't need to be added just 5.7 times four because all the sides are equal

for number 4: the area is 19.38 sq cm

for number 6: the area is 57.4 sq mm

Step-by-step explanation:

for number 4:

start with the formula:

A = bh

Then substitute b for 5.7 cm and h for 3.4 cm.

A = 5.7 cm times 3.4 cm

This equals 19.38 sq cm.

for number 6:

start with the formula:

A = 1/2 bh

Substitute b for 14 mm and h for 8.2 mm.

A = 1/2 times 14 mm times 8.2 mm

This equals 57.4 sq mm.

c. (3,2,6) is the answer.

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.