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3 years ago

A few pages were torn from a book...!!

Mathematics

1 answer:

andreev551 [17]3 years ago

5 0

Answer: 9 Pages

Step-by-step explanation:

Count the number of pages given:

7,8,20,22,23,24,37,42,43

9 Numbers = 9 pages

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Which graph represents a circle with equation x2 + y2 = 9

Rashid [163]

The basic form of the equation of a circle is:
x^2+y^2=r^2
where r^2 is the radius squared.

Looking at your equation, x^2+y^2=9, the radius is 3 (sqrt of 9 is 3)

Therefore, the graph B would be correct since the radius of the circle at all points is 3.

Hope I helped :)

6 0

3 years ago

Read 2 more answers

A four-inch line segment is dilated at the midpoint by a scale factor of 2. What is the length of its image?

dimulka [17.4K]

Answer: 8 inch

Exp: 4*2

5 0

3 years ago

PLEASE HELP ME ASAP!!!!!!!!!!!!!!!!!!!!!!!!! 3) This problem is called the Collatz Conjecture and is an unproven statement in ma

Aneli [31]

The set of numbers in the Collatz Conjecture are 1, 4, 2, 1, 4, 2, 1, 4, 2....

<h3>How to generate the numbers in the Collatz Conjecture</h3>

To start with, we make use of the following starting point:

Starting point = 1

The rule is given as:

If the last number is odd, multiply it by 3 and add 1.
If the last number is even, divide the number by 2.

1 is an odd number.

So, we use the first rule

So, we have:

1 * 3 + 1 = 4

4 is an even number.

So, we use the second rule

So, we have:

4/2 = 2

So, the first three numbers in the Collatz Conjecture are:

1, 4, 2

Using the given rules, we have:

1, 4, 2, 1, 4, 2, 1, 4, 2....

The above means that there is only one set of repeating numbers in the Collatz Conjecture.

Hence, the set of numbers in the Collatz Conjecture are 1, 4, 2, 1, 4, 2, 1, 4, 2....

<h3>Fibonacci sequence</h3>

The first and the second numbers are given as:

First = 2

Second = 5

The current term of a Fibonacci sequence is the sum of the previous two terms.

Using the above rule, the first 10 terms are:

2, 5, 7, 12, 19, 31, 50, 81, 131, 212

<h3>The sum of the first 10 terms of the new sequence</h3>

We have:

2, 5, 7, 12, 19, 31, 50, 81, 131, 212

Add the terms

Sum = 2+ 5+ 7+ 12+ 19+31+50+81+131+212

Evaluate

Sum = 550

Hence, the sum of the first 10 terms of the new sequence is 550

Read more about sequence at:

brainly.com/question/7882626

#SPJ1

7 0

2 years ago

g Determine the point estimate of the population mean and margin of error for the confidence interval. Lower bound is 21, upper

nata0808 [166]

Answer: The point estimate of the population mean is <u>23</u>. The margin of error for the confidence interval is <u>2</u>.

Step-by-step explanation:

The confidence interval for the mean is of the form is given by :-

$\overline{x}-\text{error}\leq\mu\leq\overline{x}+\text{error}$

Given : Lower bound: $\overline{x}-\text{error}=21$

Upper bound : $\overline{x}+\text{error}= 25$

Then ,the sum of lower and upper bound will be :-

$2\overline{x}=21+25=46\\\\\Rightarrow\ \overline{x}=23$

Since $\overline{x}-\text{error}=21$

$\Rightarrow\ \text{Error}=\overline{x}-21=23-21=2$

Hence, The point estimate of the population mean is <u>23</u>. The margin of error for the confidence interval is <u>2</u>.

4 0

4 years ago

If n = 20, use a significance level of 0.01 to find the critical value for the linear correlation coefficient r.

Oliga [24]

Answer:

0.561

Step-by-step explanation:

To solve this problem we must resort to external information that I will leave attached with the answer, it is a table that for each value of n, gives us the critical values.

Returns the critical values for both the significant levels of 0.01 and 0.05.

If we go to the table we know that when n = 20 and the significant level is 0.01, the corresponding critical value is: 0.561

7 0

3 years ago