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3 years ago

What is the shape with 9 sides

Mathematics

2 answers:

Oduvanchick [21]3 years ago

6 0

A shape with nine sides is a nonagon.

Rudiy273 years ago

4 0

The shape with 9 sides is a Nonagon the prefix non means 9 and the word agon means shape so the word nonagon means 9 sides <span />

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Find the total surface area of the cone in the figure. ( use rr=3.14.)

nikitadnepr [17]

Answer:

Answer D

Step-by-step explanation:

The formula is $A = pi r(r+\sqrt{h^2+r^2})$ . We have our r (radius) and h (height), so plugging it all in would give us A = (3.14)(5 + sqrt(12^2)+(5^2). After computing this, you would get answer D, 282.6.

4 0

3 years ago

PLEASE HELP step by step

Katen [24]

Answer:

The length of the line segment is 10 units.

Step-by-step explanation:

Let us call the given two points: (x₁, y₁) = (2, -3) and (x₂, y₂) = (8, 5).

The distance between two points, d = $\sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2} }$

Here, $(x_1, y_1) = (2, -3)$ and

$(x_2, y_2) = (8, 5)$

Therefore, distance, d = $\sqrt{(8 - 2)^2 + (5 - (-3))^2$

$= \sqrt{6^2 + 8^2}$

$= \sqrt{36 + 64}$

$= \sqrt{100}$

= 10 units.

Hence, the answer.

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3 years ago

Write an equation of a line that has a slope of –5 and a y-intercept of 2.

Bingel [31]

Answer:

y-2 = -5x

5x+y = 2 is the required equation of a line.

4 0

3 years ago

B) f(x) = 3 |x – 41| + 5<br> Domain:<br> Range:

Readme [11.4K]

The domain is (-infinity, +infinity)
The range is (5, +infinity)

8 0

2 years ago

Find the length of arc RQ. Use 3.14

Helen [10]

Answer:

The length of arc PQ is 8.1 inches.

Step-by-step explanation:

First, you have to find the angle of POQ. Given that total angles in a circle is 360°, so you have to subtract to get ∠POQ :

$73 + 150 + 65 + ∠POQ = 360$

$288 + ∠POQ = 360$

$∠POQ = 360 - 288 = 72$

Next, you have to apply length of arc formula, Arc = θ/360×2×π×r where θ represents the angle of arc and r is the radius of circle :

$arc = \frac{θ}{360} \times 2 \times \pi \times r$

$let \: θ = 72,\pi = 3.14,r = 6.48$

$arc = \frac{72}{360} \times 2 \times 3.14 \times 6.48$

$arc = 8.1 \: inches \: (near.tenth)$

7 0

3 years ago