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meriva
3 years ago
5

A finite sequence of numbers is called AWESOME if each subsequent member of the sequence, except the first one, is larger than t

he previous one and if the
product of all the members of that sequence is a perfect square. For example, sequence 2, 6, 27 is an AWESOME sequence. Determine the natural numbers x and y such that the sequence 28, x, y, 65 is an AWESOME sequence.
Mathematics
1 answer:
kotegsom [21]3 years ago
6 0

Answer:

The answer is "28, 35, 52, 65"

Step-by-step explanation:

Calculating the x,y:

  \to x< y

When

or  

x=35\\\\y= 13 \times 2^2=13 \times 4 =52

So, the final answer is "28, 35, 52, 65".

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A city planner wants to estimate the average monthly residential water usage in the city. He selected a random sample of 100 hou
hodyreva [135]

Answer:

The 90% confidence interval for the average monthly residential water usage for all households in this city is between 4401.3 gallons and 4598.7 gallons.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.645*\frac{600}{\sqrt{100}} = 98.7

The lower end of the interval is the sample mean subtracted by M. So it is 4500 - 98.7 = 4401.3 gallons

The upper end of the interval is the sample mean added to M. So it is 4500 + 98.7 = 4598.7 gallons

The 90% confidence interval for the average monthly residential water usage for all households in this city is between 4401.3 gallons and 4598.7 gallons.

4 0
3 years ago
How many QUADRANT do we have in mathematics.​
kotegsom [21]

Answer:

4

Step-by-step explanation:

There are four Quadrants in Mathematics. Counting from the right to left, to left, then right, we can tell which quadrant we are in.

6 0
3 years ago
Read 2 more answers
G(x) = 60(1 - 0.5)^x, g(4) *<br><br><br> Please do answer step by step
Flura [38]

Answer:

3.75

Step-by-step explanation:

g(x)=60(1-0.5)^x, g(4)

g(4)=60(1-0.5)^4

g(4)=60(.5)^4

g(4)=60(0.0625)

g(4)=3.75

7 0
3 years ago
Liam works at a zoo. He was looking at some data showing the masses of their 5 African elephants. The mean mass of the elephants
hram777 [196]

Answer:

Leo has b boxes of pencils. each box contains 6 pencils. he has a total of 42 pencils. the equation that represents this situation the value of b that makes the equation true the first one is b+6=42,6b=42,b=42+6,or 42b=6 the second one are 7,836 48

Step-by-step explanation:

/

4 0
3 years ago
At Computer Central, the cost of renting a computer is $45 plus $35 per day. The total cost can be represented by the equation y
Thepotemich [5.8K]
Simple, since your equation is y=35x+45, it's quite simple to see what is the y-intercept.
It's written in y=mx+b form, the b being the y-intercept.

Thus, your y-intercept, is 45.
4 0
3 years ago
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