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frozen [14]
2 years ago
8

If 18 meters of high-resistance wire with a diameter of 1.2 mm has a resistance of 10 ohms, what is the resistance of 27 m of th

e same type of wire with a diameter of 1.5 mm
Mathematics
1 answer:
Tatiana [17]2 years ago
8 0
9.6 Have a great day :)<span />
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mamaluj [8]

w+5=8 because 3+5=8 so

w+5=9 because we put w as 4

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6 0
3 years ago
The researcher trains a sample of 16 individuals in mindfulness and then collects data on how long they spend eating per day. Th
Mila [183]

Answer:

The calculated t-value is t=0.47.

Step-by-step explanation:

<em>The question is incomplete:</em>

<em>"Americans typically eat quickly and do not spend time enjoying their meal. A researcher plans to test if those trained in mindfulness will take more time to enjoy their meal (that is, they will spend more time eating than the general population). The general population spends an average of 68 minutes per day combined eating their three meals. The researcher trains a sample of 16 individuals in mindfulness and then collects data on how long they spend eating per day. The sample mean for those trained in mindfulness equals 74; the SS = 150. What is the calculated t-value? Round your answer to two decimal places."</em>

The degrees of freedom are (n-1)=(16-1)=15

The standard deviation is:

s=\sqrt{\frac{SS}{n-1}}=\sqrt{\frac{150}{16-1}}=\sqrt{10}=3.16

The t-value can be calculated as:

t=\frac{M-\mu}{\sigma/\sqrt{n}} =\frac{74-68}{3.16/\sqrt{16}} \\\\t=\frac{6}{3.16*4}=\frac{6}{12.64}= 0.47

4 0
2 years ago
This scatterplot shows the mean number of people per square mile in the US during every tenth year since 1900.
Salsk061 [2.6K]

Answer:

C is the closest estimate

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2 years ago
What is 65 percent of 78?​
Allushta [10]

Answer:

50.7

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
4/9 expressed as a percent please help and show work! Please
coldgirl [10]
4/9 as a percent is (about) 44%   Work:
First get a decimal by dividing 4/9(4 divided by 9) you get 0.44 repeating
Next, take away the 0. and add a percent sign at the end of 0.44. You get 44%
Truly, the answer is 44.44444...% because the four repeats, but if you round it is simply 44%
7 0
3 years ago
Read 2 more answers
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