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4 years ago

What s the length of the arc for the half circle

Mathematics

1 answer:

Andrej [43]4 years ago

3 0

Answer`Step-by-step explanation:

The length of an arc depends on the radius of a circle and the central angle Θ. We know that for the angle equal to 360 degrees (2π), the arc length is equal to circumference. Hence, as the proportion between angle and arc length is constant, we can say that:

Hope that help, at least a bit.

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What is the mean of the sum of positive single digit integers

Rus_ich [418]

I am pretty sure it depends on what your numbers are

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3 years ago

I am posting my work for an application of integrals problem. I would love to know if anyone else agrees with my work!

quester [9]

Your work appears to be correct.

The results from a graphing calculator are in agreement.

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3 years ago

Algerabuc equation<br> 3x + 5 = 14

dexar [7]

Answer: x=3

Step-by-step explanation:

3x + 5 = 14

Subtract 5 from both sides

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3 years ago

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Find the constant of variation (k) where y varies directly with x. y = 2, when<br> X = 6.

ExtremeBDS [4]

Answer:

The graph below models the value of a $20,000 car t years after it was purchased.

Value of Car

A graph titled Value of Car has years on the x-axis and Dollars on the y-axis. A line curves down and goes through points (0, 20,000), (4, 10,000), and (14, 2,000).

Which statement best describes why the value of the car is a function of the number of years since it was purchased?

Each car value, y, is associated with exactly one time, t.

Each time, t, is associated with exactly one car value, y.

The rate at which the car decreases in value is not constant.

There is no time, t, at which the value of the car is 0.

Step-by-step explanation:

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3 years ago

When you multiply a function by -1, what is the effect on its graph?

Dafna1 [17]

9514 1404 393

Answer:

B. The graph flips over the x-axis

Step-by-step explanation:

When you plot the coordinate pair (x, y), you plot the point 'y' units above the x-axis. If you change the sign of that (multiply the function by -1), then the point becomes (x, -y), and is plotted 'y' units below the x-axis.

The graph flips over the x-axis.

Attached is an example of a function with its original graph (red) and the graph after being multiplied by -1 (blue). The blue graph is a reflection of the red graph across the x-axis.

5 0

3 years ago