X+y=6 --> Equation 1
x-y=8 --> Equation 2
Equation 1 - Equation 2 =
2y =-2
y = -1

x+y = 6 --> Plug y value into equation
x + (-1) = 6
x-1 = 6
x = 7

y = -1, x = 7

5 0

3 years ago

Vilka [71]

Answer:

10,361 dolls were sold in 2001.

Step-by-step explanation:

Number of dolls sold in x years after 1993:

The number of dolls sold in x years after 1993 is given by:

$f(x) = -0.002x^4 - 0.025x^3 - 0.364x^2 - 7.243x + 86.993$

Estimate how many dolls were sold in 2001.

2001 is 2001 - 1993 = 8 years after 1993, so this is f(8).

$f(8) = -0.002*8^4 + 0.025*8^3 - 0.364*8^2 - 7.243*8 + 86.993 = 10.361$

10,361 dolls were sold in 2001.

3 0

3 years ago

spinner is spun 40 times for a game. Here is a graph showing the fraction of games that are wins under some conditions. Estimate

Schach [20]

Answer:

I would but i dont have a graph

Step-by-step explanation:

8 0

3 years ago

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