Answer:
The two expressions are equivalent, The value of both expressions when t = 5 is 32, and The value of both expressions when t = 3 is 24
Step-by-step explanation:
4 (3 + 3) = 4(3) + 12
4(6) = 12 + 12
24 = 24
4(5 + 3) = 4(5) + 12
4(8) = 20 + 12
32 = 32
Answer:8,8
Step-by-step explanation:
Took the test on edge
Answer:
y = 15x + 65
Step-by-step explanation:
To find the equation, we can use two points in the graph to find the parameters 'a' and 'b' in the equation:
y = ax + b
For the value x = 1, we have y = 80
For the value x = 9, we have y = 200
So we have that:
80 = a*1 + b
200 = a*9 + b
Making the second equation minus the first one, we have:
8a = 120
a = 15
Now we can find 'b':
80 = 15 + b
b = 65
So the equation is y = 15x + 65
Answer:
Simplifying
x2 + bx + 9 = 0
Reorder the terms:
9 + bx + x2 = 0
Solving
9 + bx + x2 = 0
Solving for variable 'b'.
Move all terms containing b to the left, all other terms to the right.
Add '-9' to each side of the equation.
9 + bx + -9 + x2 = 0 + -9
Reorder the terms:
9 + -9 + bx + x2 = 0 + -9
Combine like terms: 9 + -9 = 0
0 + bx + x2 = 0 + -9
bx + x2 = 0 + -9
Combine like terms: 0 + -9 = -9
bx + x2 = -9
Add '-1x2' to each side of the equation.
bx + x2 + -1x2 = -9 + -1x2
Combine like terms: x2 + -1x2 = 0
bx + 0 = -9 + -1x2
bx = -9 + -1x2
Divide each side by 'x'.
b = -9x-1 + -1x
Simplifying
b = -9x-1 + -1x
Step-by-step explanation:
Answer:
$66 for 6 cars.
Step-by-step explanation:
This is a rather simple problem. To find the answer you must divide 44/4= 11. Now knowing that Chris earns $11 per car if you multiply 11x6= 66 you can find out Chris makes $66 for 6 cars.