3 years ago

The graph below represents a function.

Mathematics

1 answer:

Fofino [41]3 years ago

8 0

Answer:

Step-by-step explanation:

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Solve the system by elimination<br> − 7x+ 9y =− 18 <br> 4x+ 9y =− 18

tamaranim1 [39]

Answer:

x= 0

y= -2

Step-by-step explanation:

− 7x+ 9y =− 18

4x+ 9y =− 18

7x- 9y =+ 18

4x+ 9y =− 18

11x=0

x=0

y=-2

8 0

3 years ago

Team Alpha had one fourth as many people as team Beta. After 6 people quit team Beta and 12 people were transferred to team Alph

gregori [183]

Let "a" and "b" represent the numbers of people on teams Alpha and Beta, respectively. The problem statement tells you
a = (1/4)b
b - 6 - 12 = a + 12

The first equation can be rewritten to give an expresion for b:
b = 4a
This can be substituted into the second equation to get
4a -18 = a +12
3a = 30
a = 10

There were originally 10 people on team Alpha.

6 0

3 years ago

The position of a particle moving in a straight line at any time t is x(t) = 2t^2 + 6t + 5. What is the acceleration of the part

grandymaker [24]

Answer:

The acceleration of the particle at any time t

$a = 4\ m/s^{2}$