Martin should save about $33.00 per week to purchase the gaming system and games in 10 weeks.
The length of the function y = 3x over the given interval [0, 2] is 3.2 units
For given question,
We have been given a function y = 3x
We need to find the length of the function on the interval x = 0 to x = 2.
Let f(x) = 3x where f(x) = y
We have f'(x) = 3, so [f'(x)]² = 9.
Then the arc length is given by,
![\int\limits^a_b {\sqrt{1+[f'(x)]^2} } \, dx\\\\= \int\limits^2_0 {\sqrt{1+9} }\, dx\\\\=\sqrt{10}\\\\ =3.2](https://tex.z-dn.net/?f=%5Cint%5Climits%5Ea_b%20%7B%5Csqrt%7B1%2B%5Bf%27%28x%29%5D%5E2%7D%20%7D%20%5C%2C%20dx%5C%5C%5C%5C%3D%20%5Cint%5Climits%5E2_0%20%7B%5Csqrt%7B1%2B9%7D%20%7D%5C%2C%20dx%5C%5C%5C%5C%3D%5Csqrt%7B10%7D%5C%5C%5C%5C%20%3D3.2)
This means, the arc length is 3.2 units.
Therefore, the length of the function y = 3x over the given interval [0, 2] is 3.2 units
Learn more about the arc length here:
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Answer: $15
Step-by-step explanation:
-$50 + $75 = $15
Answer:
Y = - 2/3x + 1
Step-by-step explanation:
-2/3 = rise/run = slope
+1 = y intercept
Answer:
X = -4, y = 3
Step-by-step explanation:
Plug it in
-3x - 3(-5x - 17) = 3
-3x + 15x + 51 = 3
12x + 51 = 3
12x = -48
x = -4
plug it in to find y
Y = -5(-4) -17
y = 20 - 17
y = 3