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Naddika [18.5K]
3 years ago
6

HELPPPP!!!! geometry plzzz..... What is the distance between (3,-4) and (8,8) ?

Mathematics
1 answer:
kirza4 [7]3 years ago
4 0

Answer:

13

Step-by-step explanation:

To find the distance, d, between two points on the Cartesian plane use the distance formula.

d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

The points are (3, -4) and (8, 8), so you can use:

x1 = 3

y1 = -4

x2 = 8

y2 = 8

Now plug in all values above in the formula and evaluate it.

d = \sqrt{(8 - 3)^2 + [8 - (-4)]^2}

d = \sqrt{(5)^2 + (8 + 4)^2}

d = \sqrt{25 + (12)^2}

d = \sqrt{25 + 144}

d = \sqrt{169}

d = \sqrt{13}

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inna [77]

Hey there! I'm happy to help!

We want to find the probability that the player makes at least seven out of eight free throws. First, we find the probability of them making seven free throws.

\frac{1}{2}^7=\frac{1}{128}

Then, we find the probability of them making eight, which is another possibility that fits this.

\frac{1}{2}^8=\frac{1}{256}

Now, we add the probability of these two events happening.

\frac{1}{128}+\frac{1}{256}=\frac{3}{256}

Therefore, the probability that the player makes at least seven of eight free throws is 3/256 or about 1.17%

Have a wonderful day! :D

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3 years ago
Rocky is standing on a sidewalk made of cement squares. He will toss a coin 4 times. For each head, he'll move one square forwar
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Answer:

Rocky is 5 squares behind the starting line.

8-6=2

2-4=-2

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Step-by-step explanation:

Hope this helps:)

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2 years ago
Logan has several job offers in different cities. What should he research to determine how much money he will have to spenas he
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Ja'Von kicks a soccer ball into the air. The function f(x) = –16(x – 2)2 + 64 represents the height of the ball, in feet, as a f
Dima020 [189]

Answer:

The maximum height the ball reaches is 64 feet

Step-by-step explanation:

The given function is f(x) = -16·(x - 2)² + 64

From the equation, the path described by the ball is an inverted n-shaped parabola

The maximum height is therefore, the tip of the parabola

At the maximum height, the slope = 0 because the tip is momentarily flat

Since the slope (y₂ - y₁)/(x₂ - x₁)  = The derivative Δy/Δx, we find the derivative of the function and equate it to zero to find the coordinates at the  maximum height

Δy/Δx = dy/dx = d(-16·(x - 2)² + 64)/dx = -32·(x - 2) = -32·x + 64

To check if it is a maximum, we have;

d²y/dx² = d(-32·x + 64)/dx = -32 which is negative, indicating that the slope is reducing and we at the maximum point of the slope

Therefore for the maximum height Δy/Δx = dy/dx = -32·x + 64 = 0

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x = 64/32 = 2 seconds

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f(2) = -16·(2 - 2)² + 64 = 64 feet

Therefore, the maximum height the ball reaches is 64 feet.

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