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
KatRina [158]
3 years ago
9

I need help please thanks ....

Mathematics
1 answer:
solniwko [45]3 years ago
3 0

Answer:

Area = 119.2415 cm^2

Step-by-step explanation:

This is a cone on its head.

The total surface area can be calculated using the formula for the area of a cone.

Mathematically,

The Area A = 2πr(r + l)

where r = radius of the circular base which is 1/2 * D.

D is the diameter given as 3.5

so r = 3.5/2 = 1.75 cm

l = slant height = 9.1 cm

and π = 3.14

Plugging these values into the equation of A, we have;

A = (2 * 3.14 * 1.75)(1.75 + 9.1)

A = 10.99(10.85)

A = 119.2415 cm^2

You might be interested in
How to solve this? Don't just give me the answer help me learn this.
Sphinxa [80]

Answer:

I'm not entirely sure but I think that what is says is that it wants you to find the value of x in (4x+28) to make it 116 degrees because it is that same angle. So what you do is you get (4x+28)=116 and you do this because they are the same angle so you use 116 and get it to solve x. Since I'm lazy, then I go to this website and type the equation in: m a t h w a y . c o m but without all of the spaces, I had to do that so it would let me answer this, but I'll do it the real way this time. (4x+28)=116  Their is a rule in math that as long as you do something to one side of the equal sign in the equation, you have to do it to the other and it will still work. So, you minus 28 from both sides so that you can get rid of it and you now have 4x=88. Now you should know this part but you divide 4 from both sides to make so x is alone. Now you have x=22 because you divided 4 from each side. So their is your answer: x=22.

Step-by-step explanation: If you have the answer key that you can check from to make sure you got it right because I know some teachers let you do that, then you should make sure that is right, but I am pretty sure it is.


6 0
3 years ago
Which order pair could represent the location of point h
Rus_ich [418]
What does the work look like first
5 0
3 years ago
The area of a square for on a scale drawing of 100 square centimeters and the scale drawing to 1 cm: 2 feet what is the area of
lilavasa [31]

Answer:

1.\boxed{\text{400 ft}^{2}}; 2. \boxed{\frac{1}{3716}}

Step-by-step explanation:

Step 1. Calculate the area of the floor

If the area A₁ of a square floor on the scale drawing is 100 cm², the length of a side is 10 cm.

The side length l of the actual floor is  

l = 10 cm × (2 ft/1 cm) = 20 ft

The area A₂ of the floor is  

A = l² = (20 ft)² = \boxed{\text{400 ft}^{2}}\\

Step 2. Calculate the area ratios

We must express both areas in the same units.  

Let's express the area of the room in square centimetres.

l = 20 ft ×  (12 in/1 ft) = 240 in

l = 240 in × (2.54 cm/1 in) = 609.6 cm

A₂ = l² = (609.6 cm)² = 371 612 cm²

The area A₁ on the scale drawing is 100 cm².

The ratio of the areas is

\frac{A_{1}}{ A_{2}} = \frac{100}{371612} = \frac{1 }{3716}\\

The ratio of the area in the drawing to the actual area is \boxed{\frac{1}{3716}}

8 0
3 years ago
What is the equation of this line in slope-intercept form?
12345 [234]

Answer:

y = -2x + 5

Step-by-step explanation:

Slope-intercept form: y = mx + b

The slope of the line, m, is -2 because the line shows a negative trend and moves right 1 unit every time a point moves down 2 units.

The y-intercept, b, is 5 because the line crosses that number once on the y-axis.

7 0
2 years ago
The corresponding lengths of two cuboids are 12 and 3. What is the ratio of their volumes?
damaskus [11]

Answer:

I think 4:1 I'm not that sure tho

3 0
3 years ago
Other questions:
  • The method used to factor trinomials of the form ax^2+bx+c can also be used to factor binomials of the form px^2+q by realizing
    11·1 answer
  • On one day, the stock of Seraj Food Technologies went up by $30\%.$ The next day, the stock fell by $30\%.$ Over the two days, t
    10·1 answer
  • A football field is 120 yd long and 50 yd wide. what is the area of the football field, in m2, if 1 yd = 91.44 cm?
    11·1 answer
  • What does nPn represent?
    15·1 answer
  • I need help on this one and please only answer if you know not to ask a question. Plz explain how you got your answer
    13·1 answer
  • I just need help tbh I need the answer and sum work to back it up
    10·1 answer
  • A school purchases jars of marbles.
    10·2 answers
  • Please help!!!!!!!!!!!!!!
    9·1 answer
  • The function y=kx is given in the table. Find the coefficient k and fill in the table.
    12·2 answers
  • Find the area of each composite figure.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!