perimeter = 36 cmheron’s formula: area =  what is the area of an equilateral triangle that has a perimeter of 36 centimeters? round to the nearest square centimeter.15 square centimeters62 square centimeters72 square centimeters705 square centimeters

The answer is 62 square centimeters

Step-by-step explanation:

Given perimeter is = 36 cm

So, each side will be = cm

Side according to formula is = cm

Now area is given as :

here a,b and c are sides.

=>

=>

=>

A= 62.35 ≈ 62 square cm

Therefore, the answer is option B : 62 square cm.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

option 2 is correct.

step-by-step explanation:

we are given two inequality equation

x+y> 5 and -3x+2y< -2

first we draw the graph of both function using t-table method

equation: x+y> 5

for x=0, y=5

for x=-5, y=0

table:

x   :   0     5

y   :   5     0

test point (0,0) , 0> 5

false

equation: -3x+2y< -2

for x=0, y=-1

for x=2, y=4

table:

x   :   0     2

y   : -1       4

test point (0,0) , 0< -2

true

now we draw the graph. see the attachment for graph.

common region would be solution set.

option 2 is correct.