1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Butoxors [25]
3 years ago
15

Raymond calculated the surface area of a cone that has a diameter measure of 8 meters and a slant height of 20.5 meters. Analyze

Raymond’s work. Is he correct? If not, what was his mistake? Yes, he is correct. No; in step 1 he used the diameter measure instead of the radius. No; in step 2 he incorrectly evaluated the power to 64 instead of 16. No; in step 3 he added the surface area and lateral area incorrectly.
Mathematics
2 answers:
Andreas93 [3]3 years ago
4 0

Answer:

The correct answer on EDG-2020 is:

No; in step 1 he used the diameter measure instead of the radius.

Step-by-step explanation:

V125BC [204]3 years ago
3 0

Answer:

No; in step 2 he incorrectly evaluated the power to 64 instead of 16

Step-by-step explanation:

The question is not complete, the steps taken by Raymond are not listed, but I would show you the correct way of calculating the surface area and you determine from where Raymond made a mistake.

Answer:

A cone is a shape in which a set of lines connect the top point which is a common point to its circular base. The surface area of a cone is given by:

A=\pi r(r+\sqrt{h^2+r^2} )=\pi r(r+l)=\pi r^2+\pi rl

Where A is the surface area, r is the radius of the cone, h is the height of the cone and \sqrt{h^2+r^2} is the length of the slant height of the cone.

Given that a cone has a diameter measure of 8 meters and a slant height of 20.5 meters. Therefore:

radius (r) = diameter/2 = 8 / 2 = 4 m

Slant height (l) = 20.5 m

The surface area is:

A=\pi r^2+\pi rl\\Substituting \ values:\\A=\pi *4^2+\pi *4*20.5\\=\pi *16+\pi *82\\=98\pi \ m^2\\=307.9\ m^2

The power in step 2 is 16 not 64

You might be interested in
describe whether the association in the scatter plot below is linear or non-linear and positive or negative.​
zhannawk [14.2K]

The scatter plot describes the relationship as a positive, non-linear association. Hence option B is correct.

<h3>What is a scatter plot?</h3>

A scatter plot is a plot mathematical chart or graph that depicts the relationships by the use of dots and shows the two numeric variables.

The dots are positioned on each horizontal and vertical value for an individual. They are used for observing the relationship between the variables. The graph shows are positive but nonlinear association.

Find out more information about the relationship.

brainly.com/question/17986737

#SPJ1

3 0
2 years ago
F(2)=-7<br> f(x) = f(x-1) + 1
m_a_m_a [10]

Answer:

F930

Step-by-step explanation:

You guys suck so much ohhhhhhhhhhhhhhhhhhhhh

3 0
3 years ago
What is the algebraic rule for a figure that is rotated 270° counterclockwise about the origin?
Serggg [28]

Answer:

(x,y) -> (-x,-y)

Step-by-step explanation:

the coordinates are switched from the (x,y) you have to (-x,-y)

4 0
3 years ago
742.0352 find the tens, tenths, and thousandth place
Tema [17]

Answer:

742

700

1000

Please Mark it as brainlist answer.

3 0
2 years ago
A marina is in the shape of a coordinate grid. Boat A is docked at (3.1, −1) and Boat B is docked at (−4.1, −1). The boats are _
kirill115 [55]

Answer:

d = 7.2

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra II</u>

  • Distance Formula: d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Step-by-step explanation:

<u>Step 1: Define</u>

Boat A(3.1, -1)

Boat B(-4.1, -1)

<u>Step 2: Find distance </u><em><u>d</u></em>

Simply plug in the 2 coordinates into the distance formula to find distance <em>d</em>.

  1. Substitute [DF]:                    d = \sqrt{(-4.1-3.1)^2+(-1+1)^2}
  2. Subtract/Add:                       d = \sqrt{(-7.2)^2+(0)^2}
  3. Exponents:                           d = \sqrt{51.84}
  4. Evaluate:                              d = 7.2
8 0
3 years ago
Read 2 more answers
Other questions:
  • A rod was cut into 3 piece the length of the 3 piece are in the ratio of 5 : 3 :2 if the shortest is 25cm how long was the rod ​
    7·1 answer
  • Please answer asap!!!
    11·1 answer
  • what are the solutions of the equations x^2+14x=-130? (1point) a.2,-16 b.10,-13 c.-2,16 d.no solution
    14·1 answer
  • What is 9/8 minus two thirds and what is the simplified answer
    11·2 answers
  • Write two equivalent fractions for each 1/3 2/3 1/2 4/5
    14·2 answers
  • 1900 people attended a baseball game. 1691 of the people attending supported the home team while, 209 supported the visiting tea
    7·1 answer
  • What is the solution to the following system of equations
    14·1 answer
  • The manufacturer of official NFL footballs uses a machine to inflate its new balls to a pressure of 13.5 pounds. When the machin
    12·1 answer
  • If Bill was traveling v mi/h, how would you represent Daemon's speed in mi/h if he was traveling 45 mi/h faster?
    8·1 answer
  • Simply the given expressions below.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!