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2 years ago

Circumference if a circle with a diameter of seven

Mathematics

2 answers:

lara [203]2 years ago

8 0

Answer:

21.99

Step-by-step explanation:

2 times pi times radius

Dmitry_Shevchenko [17]2 years ago

5 0

Answer:

Circumference = 2 x pi x r

Radius, r = 7/2

Circumference = 2 x 22/7 x 7/2

= 22 cm

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This is due at 11:59 PLEASE HELP!!! Will name Brainly

Naya [18.7K]

Answer:

Step-by-step explanation:

By applying Pythagoras theorem in ΔEGD,

ED² = EG² + GD²

y² = 5² + 2²

y = √29

y = 5.39

By applying cosine rule in ΔBCD,

cos(28.3)° = $\frac{x}{19}$

x = 19cos(28.3)

x = 16.73"

Area of ABCDE = Area of trapezoid ABDE + Area of triangle BCD

= $\frac{1}{2}(15+19)5+\frac{1}{2}(16.73)(9)$

= 85 + 75.28

= 160.28 square inch

Perimeter of ABCDE = AB + BC + CD + DE + AE

= 5.39 + 16.73 + 9 + 5.39 + 15

= 51.51"

3 0

3 years ago

The probability of a team winning a volleyball tournament is 0.14.

mars1129 [50]

Answer:

0.14 as a percentage is 14%

4 0

3 years ago

Fifteen seventh graders were randomly selected to see how many pushups in a row they could do. Their data are shown. a. b. 45, 4

GuDViN [60]

Answer: Median = 42

Mean = 43.8

Step-by-step explanation:

When we have a data set of n points {x₁, x₂, ..., xₙ}

The mean is written as:

(x₁ + ... + xₙ)/N

And the median will be the value in the middle of the data set.

So first, let's write our data set in order, from least to greatest.

{36, 36, 38, 40, 40, 40, 42, 42, 43, 45, 45, 48, 48, 70}

So we have 14 values.

The middle value will be at:

(n + 1)/2

(14 + 1)/2 = 7.5

Now, counting from the left, we have that the 7.5th value is 42. (the 7th value is 42, and the 8th value is 42)

So the median is 42.

Now the mean:

M = (36 + 36 +38 +40+40+40+ 42 +42 + 43 + 45 + 45 + 48 + 48 + 70)/14

M = 43.8

8 0

3 years ago

What is 3 1/3 + 1 1/4?

7nadin3 [17]

Those are mixed number
<span>3 1/3 + 1 1/4
10/3+5/4
take LCM

40+15/12
55/12=4.5833 or u can write in mixed form 4 7/12</span>

8 0

3 years ago

Read 2 more answers

Does the order of the numbers in an ordered pair matter when naming a point? Can that point be represented by more than on order

babymother [125]

Ordered pairs are used to locate points on the graph. The first number in an ordered pair corresponds to the horizontal axis, and the second corresponds to the vertical axis.<span>
</span>

6 0

4 years ago