The domain is group/set of numbers that will work for the equation
if no domain is specifiedl, then the domain is usually the set of all real numbers
to find the domain, find which numbers will violate any rules, such as dividing by zero
if there are any, then just say that the domain is all real numbers except these numbers exg
if you had an equaiton y=2/x then x cannot be zero because 2/0 is undifined and impossible so the domain would be all real numbesr except 0
domain is all real numbers
Answer:
Step-by-step explanation:
80 40
___________
100 50
Answer:
35
Step-by-step explanation:
IF the middle is 18 then there aer 17 infront and 17 in back added together equals 35.
Answer:
Step-by-step explanation:
Question 1
System of equations is,
y = -6x -------(1)
y = -4x - 2 ---------(2)
Substitute the value of y from equation (1) to equation (2)
-6x = -4x - 2
-6x + 4x = -2
-2x = -2
x = 1
From equation (1)
y = -6(1)
y = -6
Question (2)
System of equations is,
-y = x --------(1)
3x + 5y = 20 ---------(2)
Substitute the value of x from equation (1) to equation (2)
3(-y) + 5y = 20
-3y + 5y = 20
2y = 20
y = 10
From equation (1)
-y = x
x = -10
Question (3)
System of the equations is,
y = -2x - 7 --------(1)
9x - 10y = 12 ----------(2)
Substitute the value of y from equation (1) to equation (2)
9x - 10(-2x - 7) = 12
9x + 20x + 70 = 12
29x = 12 - 70
29x = -58
x = -2
From equation (1)
y = -2(-2) - 7
y = 4 - 7
y = -3
