In which situation is the temperature inside a house changing at a constant rate? А
The temperature decreases by 1 °F every 45 minutes.
B
The temperature decreases by 5% every 45 minutes.
С
The temperature increases to 68 °F when the heater turns on, decreases to 65 °F when the heater turns off, and so a
D
The temperature increases by 1 °F in the first hour, by 2 °F in the second hour, and so on.
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5050 i think

step-by-step explanation:

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1