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nikklg [1K]
3 years ago
6

What is the area of a regular pentagon with a side of 20 inches? can you explain?

Mathematics
1 answer:
san4es73 [151]3 years ago
6 0

here is the answer: A≈688.19in²

I cant really give you an explanation though

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The option for the first one is graph A or graph B
horrorfan [7]

First answer: Graph A

Second answer: E) Increase less

Graph A shows a flatter curve compared to B which is steeper. The steeper the curve, the faster the increase.

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3 years ago
Find the missing end point if H is the midpoint of PS. P(2,5) and H (3,4) find S (endpoint)
RUDIKE [14]

Answer:

(4,3)

Step-by-step explanation:

To find the midpoint add the end points and divide by 2

P(2,5)    S ( sx, sy)  and the midpoint is and H (3,4)

X coordinate

( 2+ sx) /2 = 3

Multiply each side by 2

2+sx = 3*2

2+sx = 6

Subtract 2

sx = 4

Y coordinate

( 5+ sy) /2 = 4

Multiply each side by 2

5+sy = 4*2

5+sy = 8

Subtract 5

sy = 3

The end point is

(4,3)

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3 years ago
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lozanna [386]

Answer:

The correct answer is A

Step-by-step explanation:

because he coordinates all intersect plan CDI

5 0
3 years ago
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miv72 [106K]

Answer:

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3. Find an equation of a parabola with a vertex at the origin and directrix y = -3.5
Lina20 [59]

Answer:

y=\frac{1}{14}x^2

Step-by-step explanation:

we know that

The directrix of the parabola is perpendicular to the axis of symmetry of the parabola

In this problem  the directrix is y=-3.5

so

The axis of symmetry is parallel to the y-axis

we have a vertical parabola

Also, the vertex is at the origin

That means-----> the parabola open upward

The equation of a vertical parabola can be written as

x^2=4py

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p is the distance between the vertex and the directrix

In this problem

the distance between the vertex and the directrix is 3.5

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substitute

x^2=4(3.5)y

x^2=14y

isolate the variable y

y=\frac{1}{14}x^2

7 0
3 years ago
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