Answer:
Step-by-step explanation:
-6x + y = 4
<u>6x - 2y = -2 </u>+
-y = 2
y = -2
.
Substitute the value of y to the one of equations
6x - 2y = -2
6x -2(-2) = -2
6x + 4 = -2
6x = -2 - 4
6x = -6
x = -1
The incorrect one is 35 × 10⁵
it can be written as :
Answer:
23.5
Step-by-step explanation:
I'm not sure if its correct or not
4.
h(f(x)=h(2x-1)=
(2x-1)^2+1=
4x²-4x+1+1=
4x²-4x+2
5.
f(f(x))=2(2x-1)-1=4x-2-1=4x-3
6.
f o g (x)=f(g(x))
h o g (x)=h(g(x))=
(3x)^2+1=
9x²+1
Answer:
Michael bought 18 tacos and 9 burritos.
Step-by-step explanation:
Since at a particular fast food restaurant, tacos cost $ 1.29 and burritos cost $ 2.19, and Michael spent a total of $ 42.93 at the restaurant to buy food for a party, if he purchased half as many burritos as tacos, to determine how many tacos did he buy, the following calculation must be performed:
1.29 x 20 + 2.19 x 10 = 47.7
1.29 x 16 + 2.19 x 8 = 38.16
1.29 x 18 + 2.19 x 9 = 42.93
So Michael bought 18 tacos and 9 burritos.