Answer:
<h3>x by y </h3>
Step-by-step explanation:
Answer: x3+x2−2x−2
Step-by-step explanation: Use the given functions to set up and simplify f ( x ) ⋅ ( g ( x ) ) .
Brainliest or a thank you please! have a great day/night
Answer:
(x1, y1) = (1, 3)
(x2, y2) = (4, 12)
Step-by-step explanation:
y= x^2 - 4
y= 5x - 8
(substitute the value for y)
x^2 - 4 = 5x - 8
(solve the equation)
x = 1
x = 4
(substitute the values)
y = 5 × 1 - 8
y = 5 × 4 - 8
(solve the equations)
y = -3
y = 12
( the possible solutions are)
x1, y1 = 1, -3
x2, y2 = 4, 12
(check the solutions)
-3 = 1^2 - 4
-3 = 5 × 1 - 8
12 = 4^2 - 4
12 = 5 × 4 - 8
(simplify)
-3 = -3
-3 = -3
12 = 12
12 = 12
(the ordered pairs are the solutions)
The slower one walks at a rate of 2.2 mi/h, and the faster one walks at a rate of 3.3 mi/h
<h3>
How to find the rate of the hikers?</h3>
The given information is the following:
- The distance between the hikers is 33 miles.
- They meet in 6 hours.
- One of them walks 1.1 miles per hour faster than the other.
If we define x as the rate of the slower one and y as the rate of the faster one, then we can write the equation:
(x + y)*6h = 33mi
And now we can write:
y = x + 1.1mi/h
Replacing that we get the linear equation:
(x + x + 1.1mi/h)*6h = 33mi
(2x + 1.1mi/h)*6h = 33mi
(2x + 1.1 mi/h) = 33mi/6h = 5.5mi/h
2x = 5.5mi/h - 1.1mi/h = 4.4mi/h
x = (4.4mi/h)/2 = 2.2 mi/h
The slower one walks at a rate of 2.2 mi/h, and the faster one walks at a rate of 3.3 mi/h.
If you want to learn more about linear equations:
brainly.com/question/1884491
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