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2 years ago

Find the median and mean of the data. Which reflects the best measure of the center?

1 answer:

3 0

Mean: add all of the values together and then divide by the number of values
mean= 47.857

Median: like up the numbers least to greatest and then find the number in the middle. if there is an even number of values, take the average of the two middle values
median= 45

The mean reflects the beet measure of the center.

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-4(1 - 8n) - 4(8n + 4) Simplify with Distributive property and combining like terms

tangare [24]

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2 years ago

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You have $60 and your sister has 120 you are saving $14 per week and your sister is saving $10 per week how long will it be befo

hodyreva [135]

Answer:

15 weeks and you both will have $270

Explanation:

60+14x=120+10x

4x=60

x=15 weeks

amount= 60+14*15= $270

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2 years ago

A 40-foot tree casts a shadow 60 feet long. How long would the shadow of a 6-foot man be at that time?

Andre45 [30]

Answer:

26 ft

Step-by-step explanation:

I'm guessing this is how it's done

60-40= 20

there for at this time any shadow would be 20x it's original height/length

so 6+20=26 ft

lmk if I'm correct

4 0

3 years ago

Read 2 more answers

A 5 kW solor energy system can collect 9000 kWh of energy per year. In Arizona, electricity cost eleven cents per kilowatt hour.

Licemer1 [7]

Answer:

19338 kWh

Step-by-step explanation:

In Arizona, electricity cost eleven cents per kilowatt-hour.

The average home uses 66 million BTU per year i.e. 66000000 BTU per year.

Now, it is given in the question that 1 BTU is equivalent to 0.000293 kWh.

So, the average home uses (66000000 × 0.000293) = 19338 kWh per year.

Therefore, the number of kilowatt-hours used per year will be 19338. (Answer)

6 0

3 years ago

In JKL. solve for x 66.73 74.89 15.44 38.16

liq [111]

By right triangle trigonometry, the sine of the measure of an angle is the ratio of the opposite side of this angle to the hypotenuse.

Thus, $\displaystyle{\sin27^{\circ}= \frac{34}{x}$

$\sin27^{\circ}$ is a constant which can be found using a calculator:

with calc in pc: view → scientific → 27→sin = 0.45399,

thus x=34/0.45399=74.89

Answer: 74.89

5 0

2 years ago