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saul85 [17]
3 years ago
7

What is the area of a circle that has a diameter of 10 feet? (Use 3.14 for pi.)

Mathematics
1 answer:
Hitman42 [59]3 years ago
5 0
5^2x3.14
25x3.14
about 
78.5
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What is the diameter of a hemisphere with a volume of 8514 cm', to the nearest
Mandarinka [93]

Answer:

32.0 cm

Step-by-step explanation:

volume of a hemisphere = (2/3)πr3

r = cube root (Volume * 3/2 * 1/π )

r = cube root ( 8514 * 3/2 * 1/π)

r = 15.96

in the nearest tenth r = 16.0 cm

D= 2r

D= 2(16)

D= 32cm

6 0
3 years ago
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Attached as photo. Please help
Effectus [21]

By Euler's method the <em>numerical approximate</em> solution of the <em>definite</em> integral is 4.189 648.

<h3>How to estimate a definite integral by numerical methods</h3>

In this problem we must make use of Euler's method to estimate the upper bound of a <em>definite</em> integral. Euler's method is a <em>multi-step</em> method, related to Runge-Kutta methods, used to estimate <em>integral</em> values numerically. By integral theorems of calculus we know that definite integrals are defined as follows:

∫ f(x) dx = F(b) - F(a)     (1)

The steps of Euler's method are summarized below:

  1. Define the function seen in the statement by the label f(x₀, y₀).
  2. Determine the different variables by the following formulas:

    xₙ₊₁ = xₙ + (n + 1) · Δx     (2)
    yₙ₊₁ = yₙ + Δx · f(xₙ, yₙ)     (3)
  3. Find the integral.

The table for x, f(xₙ, yₙ) and y is shown in the image attached below. By direct subtraction we find that the <em>numerical</em> approximation of the <em>definite</em> integral is:

y(4) ≈ 4.189 648 - 0

y(4) ≈ 4.189 648

By Euler's method the <em>numerical approximate</em> solution of the <em>definite</em> integral is 4.189 648.

To learn more on Euler's method: brainly.com/question/16807646

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7 0
2 years ago
What is r=10cos theta in rectangular form
grigory [225]
r=10\cos\theta\implies r^2=10r\cos\theta\implies x^2+y^2=10x
5 0
3 years ago
When a=3 and b=4, what is the value of 7(a+2b)?<br><br> Solved and worked out
geniusboy [140]

Answer:

77

Step-by-step explanation:

7 (3 + 2*4) =

7 (3 + 8) =

7 (11) =

7 * 11 =

77

8 0
3 years ago
F Jessie is 24 years younger than her mother and if the sum of their ages is 84, how old is Jessie?
Ad libitum [116K]
Jessie would be 60 yrs old. 84-24=60
8 0
3 years ago
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