Answer:
(-♾, ♾)
Step-by-step explanation:
A quadratic can accept any real x value. So the domain is All Real Numbers. This in interval notation is
(-♾, ♾)
This is read as negative infinity to positive infinity
Area = (x+1) * (x+1)
Area = x^2 +2x + 1
Answer:
<u>x = 8 and y = 5</u>
Step-by-step explanation:
The question is as following:
what is x and y for the following system of equations:
50x + 30 y = 550 ⇒ (1)
44x + 36 y = 532 ⇒ (2)
Subtract (1) - (2)
∴ 6x - 6y = 18
Divide both sides by 6
∴ x - y = 3
∴ x = 3 + y ⇒ (3)
Substitute with the value of x at (1)
50(3+y) + 30y = 550
Solve for y
150 + 50y + 30y = 550
80y = 550 - 150 = 400
∴ y = 400/80 = 5
Substitute with the value of y at (3)
∴ x = 3 + y = 3 + 5 = 8
<u>So, x = 8 and y = 5</u>
Answer:
2/3, or 0.66, 66%
Step-by-step explanation:
The spinner lands on Blue or Green. That's two thirds of the spinner.
The fraction is simple enough. The decimal is also simple enough.
To get a percent from a decimal, you need to multiply whatever decimal it is by 100.
Hope this helped.
20x2 = 40 tip
240-40 = 200 rent for 2 busses
240/2 = 100 $ they can spend on each bus rental.
