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sergey [27]
4 years ago
7

Awhina is constructing an electromagnet to demonstrate at the upcoming science fair. She is using wire, a nail, and a battery. A

whina also wants to make a chart to show which direction the magnetic field is flowing for each of her electromagnets. Describe how she would determine the direction of the magnetic field for the electromagnets. Include a description of how the magnetic field appears around the looped wire.
Mathematics
1 answer:
Grace [21]4 years ago
3 0

Answer:

The magnetic is stronger when it is closer to the wires. the magnets rotates around the wire. she can determine the directions by telling if it is repelling or attracting objects that contain iron.

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The five members of the Traynor family each buy train tickets. During the train ride, each family member buys a boxed lunch for
larisa [96]

Let's assume

the price of each train ticket is x

we are given

total number of family members =5

so, total cost of ticket = total number of family members*the price of each ticket

so, total cost of ticket =5*x

so, total cost of ticket =5x

now, we have

each family member buys a boxed lunch for $6.50

so, total cost of lunch box = total number of family members*price of each lunch box

so, total cost of lunch box = 5*6.50

total cost of trip = total cost of ticket+total cost of lunch box

we are given

total cost of trip is $248.50

now, we can plug values

and we get

248.50=5x+5*6.50

now, we can solve for x

248.50=5x+32.5

248.50-32.5=5x+32.5-32.5

216=5x

\frac{5x}{5} =\frac{216}{5}

x=43.2

so,

the price of each train ticket is $43.2..........Answer

8 0
4 years ago
Read 2 more answers
What is the value of x?<br> Enter your answer in the box.
mart [117]
Angles x and 64 deg are "complementary," so x+64=90, and x= 26 deg.
8 0
4 years ago
Recycled cd’s incorporated, offers a choice of 5 used CD for $24, with each additional CD costing $5. Write a cost function for
DiKsa [7]

If $24 represents the cost of  the 5 used CDs, than your formula would be "24+5x" ,x being the amount of extra CDs you purchase.

24+5(6-5)

24+5(1)

24+5

=29


6 CDs would cost $29


I hope thats right, goodluck^^

5 0
3 years ago
You are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who ow
Nadya [2.5K]

Answer:

Test statistic =1.30

Step-by-step explanation:

Given that you are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who own cats.

                                             Men                Women            Difference

Sample size n                        60                     120

Proportion p_1, p_2              0.45                   0.35                 0.10

60 120 180

0.45 0.35 0.383333333

27 42 69

p = 0.3833

Std error for proportion difference = \bar p (1-\bar p)(\frac{1}{n_1}+\frac{1}{n_2})\\=0.3833(0.6167)(\frac{1}{60}+\frac{1}{120})\\=0.0769

Test statistic = \frac{p_1-p_2}{\bar p (1-\bar p)(\frac{1}{n_1}+\frac{1}{n_2})  }

=1.3008

=1.30

4 0
3 years ago
How many 3s must be multiplied together for the product to be a number between 200 and 300? Help Please
KiRa [710]

Answer:

5

Step-by-step explanation:

3 times 3 times 3 times 3 times 3 = 243

243 is between 200 and 300

4 0
2 years ago
Read 2 more answers
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