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3 years ago

Find the area of this circle. Use 3.14 to approximate A = ar2 20 ft

Mathematics

2 answers:

trasher [3.6K]3 years ago

6 0

Answer:

314

Step-by-step explanation:

ikadub [295]3 years ago

5 0

Answer:

314

Step-by-step explanation:

R= half of d

d= 20

20/2= 10

r=10

Plug into formula:

3.14(10)^2

= 314

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180 = 16x -5+5х+4+90

k0ka [10]

Answer:

What is your question?

Step-by-step explanation:

4 0

3 years ago

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Hunter surveyed 200 of the students in his school bout there favorite color. 66 student said their favorite color was blue. What

Mice21 [21]

33% is your answer .

3 0

3 years ago

16. Find the values of x and y. (2y + 5) (5r - 17) (3r - 11)

Alinara [238K]

(5x - 17) + (3x - 11)= 180 [ Linear Pair ]
= 8x - 28= 180
= 8x= 208
= x = 208/8
= x = 26

3x-11
= 3*26 - 11
=67

Now, we have:
(2y+5)+90+(3x-11)=180 [Linear Pair]

Substituting (3x-11),
(2y+5) + 90 + 67= 180
= (2y+5)+157= 180
= 2y + 162= 180
= 2y= 18
=y = 18/2
=y= 9

Therefore, x= 26, and y= 9

Please hit the ‘Thanks’ if this helped

Have a great day.

3 0

3 years ago

Length = 125 cm, height = 28cm, Volume = 21000cm^3. Find breadth of a cuboid.

Dima020 [189]

Explanation is in the file

tinyurl.com/wpazsebu

8 0

3 years ago

A type of golf ball is tested by dropping it onto a hard surface from a height of 1 meter. The height it bounces is known to be

MaRussiya [10]

Answer:

79.95, 82.62

Step-by-step explanation:

using excel to find a 95% confidence interval for the mean bounce height of the golf ball

Heights given are :

81.4

80.8

84.4

85.6

82.9

76.0

80.0

83.2

80.8

79.6

82.9

83.4

82.2

86.0

76.2

84.8

82.0

76.3

77.0

75.4

82.0

79.8

80.4

86.9

82.1

The statistical out put of the problem after solving with excel is attached below

therefore the 95% confidence interval from the attached solution will be ( 79.95, 82.62 )

6 0

3 years ago