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just olya [345]
3 years ago
8

The volume of a square prism with height of 21 inches and each side of the base s inches is given by the expression 7s2. Find th

e volume of a square prism if the length of a side is 3 inches
Mathematics
1 answer:
Murljashka [212]3 years ago
4 0

Answer:

63 cubic inches.

Step-by-step explanation:

The volume of a prism is given by, A =  \frac{1}{3} \times (\textrm {Base Area}) \times (\textrm {Height})

The base area for a square prism with sides s inches is s² sq. inches.

So, the volume of a square prism with a height of 21 inches and each side of the base s inches is given by the expression, V = 7s² cubic inches.

Therefore, if s = 3 inches, then volume will be, V = 7(3²) = 63 cubic inches. (Answer)

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The <em>standard</em> form of the equation of the hyperbola that satisfies all conditions is (x - 2)²/4 - (y - 2)²/5 = 1 .

<h3>How to find the standard equation of a hyperbola</h3>

In this problem we must determine the equation of the hyperbola in its <em>standard</em> form from the coordinates of the foci and a <em>general</em> equation of a circle. Based on the location of the foci, we see that the axis of symmetry of the hyperbola is parallel to the x-axis. Besides, the center of the hyperbola is the midpoint of the line segment with the foci as endpoints:

(h, k) = 0.5 · (- 1, 2) + 0.5 · (5, 2)

(h, k) = (2, 2)

To determine whether it is possible that the vertices are endpoints of the diameter of the circle, we proceed to modify the <em>general</em> equation of the circle into its <em>standard</em> form.

If the vertices of the hyperbola are endpoints of the diameter of the circle, then the center of the circle must be the midpoint of the line segment. By algebra we find that:

x² + y² - 4 · x - 4 · y + 4= 0​

(x² - 4 · x + 4) + (y² - 4 · y + 4) = 4

(x - 2)² + (y - 2)² = 2²

The center of the circle is the midpoint of the line segment. Now we proceed to determine the vertices of the hyperbola:

V₁(x, y) = (0, 2), V₂(x, y) = (4, 2)

And the distance from the center to any of the vertices is 2 (<em>semi-major</em> distance, a) and the semi-minor distance is:

b = √(c² - a²)

b = √(3² - 2²)

b = √5

Therefore, the <em>standard</em> form of the equation of the hyperbola that satisfies all conditions is (x - 2)²/4 - (y - 2)²/5 = 1 .

To learn more on hyperbolae: brainly.com/question/27799190

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5 0
2 years ago
To finance the remodeling of her kitchen, Rosa borrowed $26,400 on an 18-month home equity loan. She signed a promissory note be
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Identify(describe) each part of the ellipse as labeled by a letter​
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Answer: see below

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A) y has the smaller radius so this is the Minor Axis

B) y has the smaller radius so these are the CoVertices

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Find the vector and parametric equations for the line through the point P(0, 0, 5) and orthogonal to the plane −1x+3y−3z=1. Vect
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Answer:

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-1x+3y-3z=1 can also be written as -1x+3y-3z=0

The direction vector of the plane -1x+3y-3z-1=0 is (-1,3,-3).

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x - 3y + 3z - 15 = 0

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