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pychu [463]
3 years ago
9

A spinner has three sections. The table shows the results of spinning 80 times. ({Section 1|18}{Section 2|30}{Section 3|32}) Wha

t is the experimental probability of the arrow stopping on Section 3? A.3/32 B.1/32 C.1/3 D.2/5 PLEASE HELP FAST! (sorry for caps) (never mind)
Mathematics
1 answer:
svetoff [14.1K]3 years ago
4 0
Experimental probability means what the probability is concluded by the experiment / trials / real results

Assuming {Section 3 I 32} , means it landed there 32 times out of 80.
We write this as a fraction:
32/80 , we simplify it:
16/40
8/20 <- notice how i'm just halving until I can't anymore
4/10
2/5 <- the simplest answer

The answer is D) 2/5


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What is the cross-sectional area of a wire if its outside diameter is 0.0625 inch?
Leno4ka [110]

Given that the diameter: d= 0.0625 inch.

So, radius of the wire : r = \frac{0.0625}{2} = 0.03125 inch

Now the formula to find the cross-sectional area of wire ( circle) is:

A = πr²

= 3.14 * (0.03125)² Since, π = 3.14 and r = 0.03125

=3.14 * 0.000976563

= 0.003066406

= 0.00307 (Rounded to 5 decimal places).

Hence, cross-sectional area of a wire is 0.00307 square inches.

Hope this helps you!

5 0
2 years ago
Read 2 more answers
A plane that carries mail makes a round trip each day from Chicago to New York. It makes 2 intermediate stops on the way to New
Afina-wow [57]

Answer:

Step-by-step explanation:

7(d)

3 0
2 years ago
A student is working on a project for which he records the revolutions per minute (rpm) for a small electric motor as he increas
Ber [7]

Answer:

See below ↓

Step-by-step explanation:

The relation is :

  • Let y = Motor Speed and x = Voltage
  • y = 25x

<u>Title</u> : Variation of Motor Speed with Applied Voltage

<u>x-axis label</u> : Voltage (volt)

<u>y-axis label</u> : Motor speed (rpm)

As it constantly varies with a value of x and they are not isolated data points, they should be connected with a line.

8 0
2 years ago
A fair coin is tossed and a single number cube is rolled. the probability of rolling a number less than 5 is ________________. t
Alik [6]
You have a 4/ 6 chance 
then you have a 2/6 chance if the number is an odd number then reducing you would get 
1.   2/3 
2.  1/3 
7 0
3 years ago
Hey, can someone help me with this please?! Thank you!
gtnhenbr [62]

Answer:

5. p= -4

6. d=4.3

Step-by-step explanation:

if you need to know how to do it lmk and I'll update it in the step by step explanation!

hope this helped :)

UPDATED

5.

-0.9p+3.2=-1.7p

subtract add 0.9p to both sides

3.2=-0.8p

divide both sides by -0.8 to isolate p

-4=p

6.

-14.3=-1.4-3d

add 1.4 by both sides

-12.9=-3d

divide both sides by -3 to isolate d

4.3=d

4 0
2 years ago
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