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jeka94
4 years ago
13

Among the following, an incorrect statement is a) the volume of the hollow sphere =4/3π (r^3—r^3), where r is the radius of the

outer sphere and r is the radius of the inner sphere. b) the volume of the hemisphere of radius(r) is 2πr^3 c) the surface area sphere = 4πr^2 d) the surface area of a spherical shell = 4π (r^2—r^2), where r = external radius and r= internal radius
please can someone say which one is incorrect​
Mathematics
1 answer:
Lana71 [14]4 years ago
3 0

Answer:

fncjcnj jcj jcj jcj jd. d. c. dn. d. c. c. x. c. c. c.

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Angel LMN has vertices L(-2, 4), M(3, 2), and N(1,-3). Which describe the triangle?
Nadusha1986 [10]

Triangle LMN has two sides that are of the same size, therefore, triangle LMN is described as: isosceles triangle.

<h3>What is an Isosceles Triangle?</h3>

A triangle with two equal sides and two equal base angles is described as an isosceles triangle.

<h3>What is the Distance Formula?</h3>

The formula for finding the distance between two coordinate points is called the distance formula, and it is expressed as: d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}.

Given the vertices of the angles of triangle LMN as:

  • L(-2, 4),
  • M(3, 2),
  • N(1,-3)

Use the distance formula to find the length of each side of the triangle.

LM = √[(3−(−2))² + (2−4)²]

LM = √[(5)² + (−2)²]

LM = √29 units

MN = √[(3−1)² + (2−(−3))]²

MN = √29 units

LN = √[(−2−1)² + (4−(−3))²]

LN = √(−3)² + (7)²]

LN = √(9 + 49)

LN = √58 units

Isosceles triangles have two equal sides. Triangle LMN has two sides that are of the same size, therefore, triangle LMN is described as: isosceles triangle.

Learn more about isosceles triangle on:

brainly.com/question/11884412

#SPJ1

5 0
2 years ago
Find the midpoint of the segment ending in the points 0,9 and 5,1
Finger [1]
U se the midpoint formula to find the midpoint of the line segment.
(5/2,5) or (5,5/2) it’s one of them .gotta be I’m pretty sure it’s (5/2,5)
4 0
3 years ago
Write 450 miles per 18 gallons as a unit rate (miles per gallon)
fenix001 [56]
Multiply them together
3 0
3 years ago
36 is 0.09% of what number
alexgriva [62]
Х-100%
36-0,06%
x=(36*100)\0,06=60000
Answer:60000
8 0
3 years ago
Is ( square root 12 -4)(4+square root 12) rational or irrational
Ilia_Sergeevich [38]
Remember
(a-b)(a+b)=a²-b²

we can rewrite what we were given into
( \sqrt{12}-4)( \sqrt{12}+4)=( \sqrt{12})^2-(4)^2=12-16=-4
definitely rational
4 0
3 years ago
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