Answer:
Step-by-step explanation:
x + y = 4 ---------------(i)
x = 4-y
7x + 9y = 42 -----------(ii)
Plug in x = 4-y in equ (ii)
7*(4 - y) + 9y = 42
28 - 7y +9y = 42
28 + 2y = 42
2y = 42 - 28
2y = 14
y = 14/2
y = 7
x = 4 - y
x = 4 - 7
x = -3
Answer:
integers are closed under division
Step-by-step explanation:
Integers are not closed under division.Let us consider two integers i and j.
Then
need not necessarily be an integer. For example, 2 and 3 are integers but
is not an integer. So the first option , namely, integers are closed under division is not true.
On the other hand, the remaining three options given are correct.
Answer:
x = 2
Step-by-step explanation:
Note that 25 = 5² , then
= 5²
Since the bases on both sides are 5 then equate the exponents
6 - 2x = 2 ( subtract 6 from both sides )
- 2x = - 4 ( divide both sides by - 2 )
x = 2
Answer should be 39.69 because they all payed 13.23, right? so you add 13.23 together 3 times and get ur answer
Answer:
Left 4 units.
Step-by-step explanation:
g(x) = x^2 + 8x + 16 Factoring:
g(x) = (x + 4)^2.
So to obtain g(x) from f(x) = x^2, f(x) must be shifted 4 units to the left.