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Zarrin [17]
3 years ago
7

Solve for x x^2 =100

Mathematics
2 answers:
velikii [3]3 years ago
6 0

Answer:

x=10,-10

Step-by-step explanation:

Take the square root of both sides of the equation to eliminate the exponent on the left side

The complete solution is the result of both the positive and negative portions of the solution.

Simplify the right side of the equation

The complete solution is the result of both the positive and negative portions of the solution.

Katyanochek1 [597]3 years ago
3 0

Answer: 10

Step-by-step explanation:

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HELLP In this task, you will practice finding the area under a nonlinear function by using rectangles. You will use graphing ski
AfilCa [17]

Answer:

Part a. 1400 unit²

Part b  1240 unit²

Part c 1333.33 unit²

Step-by-step explanation:

The given function is 20·x - x²

Part a.

The dimensions of the five rectangles are;

20 × 20 + 20 × 18 + 20 × 16 + 20 × 10 + 20 × 6 = 1400 unit²

Part b.

The dimensions of the ten rectangles are;

10×20 + 10×18 + 10×16 + 10×16 + 10×14 + 10×12 + 10 × 10 + 10 × 8 + 10 × 6 + 10 ×4 = 1240 unit²

Part c.

To find the area with an infinite number of rectangles, we can use limits similar to integration;

\int _{0}^{20}\left (20\cdot x - x^{2}  \right )dx

Which gives;

\int _{0}^{20}\left (20\cdot x - x^{2}  \right )dx = \left [\dfrac{20}{2}\cdot x^{2} - \dfrac{x^{3}}{3}  \right ]_{0}^{20} = \left [10\cdot x^{2} - \dfrac{x^{3}}{3}  \right ]_{0}^{20}

10×20^2 - (20^3)/3 = 4000/3 = 1333.3333

7 0
3 years ago
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1.You have exactly 18 white socks and 18 blue socks in your sock drawer. How many times do you need to reach into the drawer and
masha68 [24]

Answer:

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Step-by-step explanation:

Given

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Second time reached in,

17/35 (<1/2=(50%)) chance of getting a white sock, 18/35 (>1/2=(50%)) chance of getting a blue sock

You would be more likely to get a blue sock, assuming you did,

17-white socks

17-blue socks

34 socks left

Third time reached in,

17/34(=1/2=(50%)) chance of getting a white sock, 17/43(=1/2(50%)) chance of getting a blue sock

Regardless of what sock is picked you would have a matching pair of socks in hand

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Harlamova29_29 [7]

Answer:

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Steve changed 600 US dollars into 480 Euros. How many Euros did he receive for each US dollar?
Vlad [161]

Answer:

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Step-by-step explanation:

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