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3 years ago

15

Help me please Idk what to do

1 answer:

pshichka [43]3 years ago

4 0

1) Theoretical
2) Experimental
3) Experimental
4) Theoretical
5) Theoretical
6) Experimental

A rough explanation is that theoretical is something that happens once, while experimental happens multiple times.
For example, number 1 happened once by flipping a coin while question 2 was flipped 8 times.

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If a tire has a diameter of 20 inches, how far will the tire travel in one full rotation?

attashe74 [19]

Answer:

B.62.8 inches

Step-by-step explanation:

just multiply the diameter by pi to get the circumference

20 x 3.14= 62.8

3 0

3 years ago

The endpoints of a diameter of a circle are A(2,1) and B(5,5). Find the area of the circle in terms of pi.

Tcecarenko [31]

Answer:

The area of the circle is $A=6.25\pi\ units^{2}$

Step-by-step explanation:

step 1

Find the diameter of circle

we know that

The diameter of the circle is equal to the distance AB

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute the values

$AB=\sqrt{(5-1)^{2}+(5-2)^{2}}$

$AB=\sqrt{(4)^{2}+(3)^{2}}$

$AB=\sqrt{25}$

$AB=5\ units$

therefore

the diameter of the circle is

$D=5\ units$

step 2

Find the area of the circle

The area of the circle is equal to

$A=\pi r^{2}$

$r=5/2=2.5\ units$ ----> the radius is half the diameter

substitute

$A=\pi (2.5)^{2}$

$A=6.25\pi\ units^{2}$

4 0

4 years ago

Sketch a graph of the relation y+4=2(x-3)

Aleks04 [339]

Answer:

I graphed it for you. Is this what you were looking for?

6 0

3 years ago

a man is 13 years older than his wife. The wife is 3 times as old as her daughter,who is 17 years old. How old was the man when

Molodets [167]

Step-by-step explanation:

the man in the question was 64 years old when she was born

5 0

3 years ago

2= 7/9 x 6 + b solve for b

netineya [11]

Answer:

8/3

Step-by-step explanation:

7/9 x 6

14/3

14/3 - 2

8/3

5 0

3 years ago