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Dimas [21]
2 years ago
13

Instructions: Find the surface area of the figure below. Round your answers to the nearest tenth, if necessary.

Mathematics
1 answer:
SIZIF [17.4K]2 years ago
7 0

The surface area of the cone is calculated to the nearest tenth as: 173.4 cm².

<h3>What is the Surface Area of a Cone?</h3>

Surface area of a cone = πr(r + l),

Given the following:

  • Radius (r) = 4 cm
  • Slant height (l) = 9.8 cm

Plug in the values

Surface area of the cone = π × 4(4 + 9.8)

Surface area of the cone = 173.4 cm²

Learn more about the surface area of a cone on:

brainly.com/question/10506554

#SPJ1

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The mean of 100 observation is found to be 40. If at the time of compution two items were wrongly taken as 30 and 27 instead of
Colt1911 [192]

Answer:

40.18

Step-by-step explanation:

According to this question, the mean of 100 observation is found to be 40. This means that the number of values in the set of data is 100. However, at the time of computation two items were wrongly taken as 30 and 27 instead of 3 and 72.

The mean is derived by dividing the sum of values in the data (Σx) by the number of observations (n) i.e.

Mean = Σx/n

For the computation error:

Mean = 40

Let x represent the sun of other 98 values except 30 and 27

n = 100

40 = x + 30 + 27/100

40 = 57 + x/100

Cross multiply

4000 = 57 + x

x = 4000 - 57

x = 3943.

Sum of other 98 values = 3943.

Now, let's find the correct mean with correct values of 3 and 72;

Mean = Σx/n

Mean = 3943 + 3 + 72/100

Mean = 4018/100

Mean = 40.18

7 0
2 years ago
How are the GCF and the LCM alike and different?
damaskus [11]
Alike: They both find what's in common.
Difference: LCM finds the least multiple while GCF finds the greatest factor.
4 0
3 years ago
Read 2 more answers
Melissa is planning a rectangular vegetable garden with a square patch for tomatoes
astra-53 [7]

The expressions for the length and the width of the rectangular garden are <u>3x + 2 feet</u>, and <u>x + 5 feet</u> respectively where x is the length of the square patch for tomatoes.

A square is a quadrilateral with all four sides equal, and all four angles at 90°, whereas a rectangle is a quadrilateral with opposite pair of sides equal, and all four angles at 90°.

In the question, we are informed that Melissa is planning a rectangular vegetable garden with a square patch for tomatoes.

The side of the square is given to be x feet.

We are asked to write expressions for the length and width of the rectangular garden.

For the length of the rectangle:-

We are informed that she wants the length of the garden to exceed three times the length of the tomato patch by 2 feet.

Thus, the length of the garden can be shown as the expression <u>3x + 2 feet</u>.

For the width of the rectangle:-

We are informed that she also wants the garden's width to exceed the width of the tomato patch by 5 feet.

Thus, the width of the garden can be shown as the expression <u>x + 5 feet</u>.

Thus, the expressions for the length and the width of the rectangular garden are <u>3x + 2 feet</u>, and <u>x + 5 feet</u> respectively where x is the length of the square patch for tomatoes.

Learn more about writing expressions at

brainly.com/question/25956004

#SPJ4

The provided question is incomplete. The complete question is:

"Melissa is planning a rectangular vegetable garden with a square patch for tomatoes. She wants the length of the garden to exceed three times the length of the tomato patch by 2 feet. She also wants the garden's width to exceed the width of the tomato patch by 5 feet.

Let x represent the length, in feet, of the square tomato patch.

Write expressions to represent the length and width of Melissa's vegetable garden in terms of x.

Enter the correct answer in the box."

8 0
2 years ago
(-9,-13) , [7 1/2, 3 1/2], (5,1), (4,0), (0,__) <br> what is the next number?
jok3333 [9.3K]

Answer:

56

Step-by-step explanation:

5 0
3 years ago
What is the value of of angle BAD:<br><br> 30◦<br> 5◦<br> 15◦<br> 20◦
Kitty [74]
From 2x+5=3x, then x=5.
5 0
3 years ago
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