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erma4kov [3.2K]

3 years ago

9

A scientist measures the heights of 25 oak trees. When he finds a the mean of these data which phrase of inferential statistics

will it represent A. Data organization B: Data analysis C: Data gathering D: probability-based inference

2 answers:

igor_vitrenko [27]3 years ago

5 0

Answer:

data analysis

Step-by-step explanation:

iren2701 [21]3 years ago

3 0

D:probability-based inference

Hope i helped :)

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a triangle has sides that measure 4 units 6 units and 7.21 units what is the area of a circle with a circumference that equals t

goldfiish [28.3K]

Answer:

Area of the circle = 24 square units.

Step-by-step explanation:

A triangle has sides that measure 4 units 6 units and 7.21 units

We are told that the Perimeter of the Triangle = Circumference of a circle.

We are to find the Area of the circle.

Step 1

Find the Perimeter of the triangle

Perimeter = A + B + C

Perimeter = 4 units + 6 units + 7.21 units

Perimeter of the Triangle = 17.21 units

Step 2

Find the radius

We were asked to find the area of the circle.

We were not given the radius of the circle in the question. But we can find it because we are given the circumference of the circle.

Circumference of the circle = 2πr

Perimeter of the triangle = Circumference of the circle

Hence the circumference of the circle = 17.21 units.

π = 3.14

Radius of the circle = Circumference of a circle/ 2π

= 17.21/2 × 3.14

= 17.21/6.28

= 2.7404458599

Approximately = 2.74 units

Step 3

Find the Area of the circle

We know the radius of the circle hence,

Area of the circle = πr²

Area of the circle = 3.14 × 2.74²

= 23.573864 square units.

Approximately to the nearest whole number ≈ 24 square units.

6 0

3 years ago

How many positive odd integers less than 10,000 can be written using the digits

Ostrovityanka [42]

125 positive odd integers

Explanation:

I was given this question before and remember it. I assure you 125 is the correct answer.

5 0

2 years ago

Show that the given curve c(t) is a flow line of the given velocity vector field F(x, y, z).

liq [111]

Answer:

a) $c'(t) = (2 Cos(t), -2 Sin(t), 9e^t)$

b) $c'(t) = (2 Cos(t), -2 Sin(t), 9e^t)$

Step-by-step explanation:

We are given in the question:

$c(t) = (2 Sin(t), 2 Cos(t), 9e^t)$

F(x,y,z) = (y, -x, z)

a) $c'(t)$

We differentiate with respect to t.

$c'(t) = (2 Cos(t), -2 Sin(t), 9e^t)$

b) F(c(t))

This is a composite function.

$F(c(t)) = F(2 Sin(t), 2 Cos(t), 9e^t)$

$= (2 Cos(t), -2 Sin(t), 9e^t)$

6 0

4 years ago

Please let me know if per means multiple and of is to divide

kirill [66]

I think multiple? try it..

7 0

3 years ago

Please answer .....

melisa1 [442]

Answer:

A) 5/12

B) 5/12

C) 0/12

D) 11/12

-------------

Q4.

A) 3/15

B) 4/15

C) 12/15

D) 8/15

-----------------

Q5.

A) 2/6 or 1/3

B) 4/6 or 2/3

C)

D)

Step-by-step explanation:

6 0

2 years ago