When a 49 pound weight is attached to a spring, the spring
stretches 7 inches. Assume that the length of the spring y varies directly
with the weight attached x. Write and solve a direct variation equation to
find the length of the spring when a 63 pound weight is attached.

Answer:

7

Step-by-step explanation:

When dividing numbers with exponents that have the same base (in this case it’s 5), you can subtract the two exponents to simplify it.

I’m just going to show you how to solve it for you to understand:

\(\frac{5^{11} }{5^{x} }=5^{4}\) This means that what can you subtract from 11 (the exponent) to get to 4 (the other exponent). You can notice that 11 - 7 = 4.

So,

\(\frac{5^{11} }{5^{7} }=5^{4}\)

Answer: 7

You have a good day too!

Hope this helps! :)

Answer:

66.) 1.) M=-9/7

2.) Y-INTERCEPT (9)

3.) X-INTERCEPT (7).

Answer:

Step-by-step explanation:

I don’t really know, don’t answer falsely on my answer, I literally have a f^cking quiz

Hearts to moon= 6:4

                         = 3:2 (simplified)

Moon to all shapes= 4:10

                               = 2:5 (simplified)

Answer:

1. 3/2 2. 2/3

Step-by-step explanation:

1. 6/4=3/2

2. 4/10=2/5

Answer:

D

Step-by-step explanation:

Based on the provided text, it appears to be a mixture of words that are jumbled or misspelled. It does not form a coherent sentence or phrase. Consequently, it is not possible to determine the intentions or meaning behind it.

Regarding the mention of "the author likely choose to vary the length of lines," it suggests a possibility of considering poetic structure or formatting. Varying the length of lines can be a deliberate stylistic choice by the author in poetry. Different line lengths can create visual and rhythmic effects, add emphasis, or convey certain emotions or ideas.

However, without further clarification or context, it is not possible to provide specific insights or interpretations about the intentions of the author or how line lengths may be relevant to the given text.

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The 95% confidence interval for the true difference between the average mass of eggs in small and large nests can be represented by a range of values with a lower and upper bound.

A confidence interval is a statistical range that provides a level of certainty about the true value of a population parameter. In this case, we are interested in the true difference between the average mass of eggs in small and large nests. The 95% confidence interval indicates that if we were to repeat the sampling process multiple times, we would expect the true difference to fall within this range 95% of the time.

To calculate the 95% confidence interval for the true difference between the average mass of eggs in small and large nests, we need to use statistical methods to estimate the population parameters based on sample data. This involves calculating the mean and standard deviation of the sample data, as well as the sample size. Once we have these values, we can use a formula to calculate the margin of error, which is the amount of uncertainty in our estimate due to the random sampling process. The margin of error is typically expressed as a percentage or a range of values. To calculate the confidence interval, we add and subtract the margin of error from the sample estimate. The resulting range of values represents the 95% confidence interval for the true population parameter.

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Answer:

point on 4 and -4

Step-by-step explanation:

IxI = 4can either be 4 or -4

Answer:

just put the point on 4

Step-by-step explanation:

if it says incorrect i am very sorry

Answer:

\(-21 < 109\)

Step-by-step explanation:

Given

\(Savings = \$109\)

\(Checking = -\$21\)

Required

Represent as an inequality

On a number line -21 comes before 109 (from left to right)

This means that -21 is smaller/lesser than 109.

So, the inequality that compares the two account values is:

\(-21 < 109\)

Step-by-step explanation:

5= 0.3 x

=> both sides times 10

50 = 3x

x = 50/3

x = 16.67 (C)

Answer:

C

Step-by-step explanation:

5÷ 0.3= 16.666 ⇒ 16.67

We have translated the given phrase into a variable expression as (1/9) × (x - 15).

To translate the given phrase "the product of one-ninth and the difference of a number and fifteen" into a variable expression, we can use the following:

1: Identify the unknown or variable number in the expression.

Let's say the variable number is 'x'.

2: Translate the phrase "one-ninth" to a fraction as 1/9.

3: Translate the phrase "the difference of a number and fifteen" to a mathematical expression.

As we have taken 'x' as the variable number, the difference of 'x' and fifteen can be written as (x - 15).

4: Combine the above expressions using the multiplication sign to get the variable expression.

So, the variable expression is:(1/9) × (x - 15)

The variable expression obtained is (1/9) × (x - 15). Hence, we have translated the given phrase into a variable expression using the required terms.

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Answer:

52 marbles i think

Step-by-step explanation:

\( \frac{5}{6} \: of \: a \: number \: is \: 180\)

\( \frac{1}{6} \: is \: 5 \: times \: less \: than \: \frac{5}{6} \\ \frac{1}{6} = \frac{180}{5} = 36\)

Answer:

Add the lengths:

5x - 16 + 2x - 4 = 7x - 20

The given expression, "s and bin the form a1x1x'f a2x2x:f of the spectral theorem qaqt," seems to contain some typographical errors and unclear notation. Therefore, it is difficult to provide a meaningful step-by-step answer or interpretation of the given expression. If you can provide additional context or clarify the notation, I would be happy to help you further.

1. Review the given expression: "s and bin the form a1x1x'f a2x2x:f of the spectral theorem qaqt."

2. Note that the expression contains multiple typographical errors and unclear notation, making it challenging to decipher its meaning.

3. It appears that there might be missing operators or symbols between the terms "s" and "bin."

4. The phrase "the form" suggests that the subsequent terms represent a particular mathematical structure or representation.

5. However, the terms "a1x1x'f," "a2x2x:f," and "qaqt" are not well-defined or recognizable mathematical notations.

6. Without proper clarification or additional context, it is not possible to determine the intended meaning or provide a step-by-step explanation for the given expression.

7. To receive accurate assistance, consider providing more information about the context, the specific mathematical concepts involved, or clarify any unclear notation in the original question.

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Answer:

$8,720

Step-by-step explanation:

SI = PRT where;

SI = simple interest

P = principal amount/starting amount

R = rate as a decimal/fraction

T = time in years

I = 8000 . 5 . 0.018

I = 720

8000 + 720 = 8720

Answer:

c

Step-by-step explanation:

The graph of s(x) = -6x + \(8x^2\) + 5x + 3 is concave up at the point with x-coordinate -1. Let us consider the second derivative.

To determine the concavity of a function at a specific point, we need to analyze the second derivative of the function. If the second derivative is positive, the graph is concave up, and if it is negative, the graph is concave down.

Given s(x) = -6x + \(8x^2\) + 5x + 3, let's find the second derivative:

s'(x) = -6 + 16x + 5

s''(x) = 16

The second derivative is a constant, 16, which is positive. Since it is always positive, the graph of s(x) is concave up for all values of x. Therefore, at the point with x-coordinate -1, the graph is also concave up.

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Answer:

The blue dot represents the absolute value of the number occupied by red dot.

Answer:

1

Step-by-step explanation:

Answer:

it should be C I guess.

Im sorry if it is wrong

the derivative of the function y = (ln(x + 4))x using logarithmic differentiation is given by y' = (ln(x + 4))x * [ln(ln(x + 4)) + (1/ln(x + 4)) * (1/(x + 4))].

To find the derivative of the function y = (ln(x + 4))x using logarithmic differentiation, we can follow these steps:

Step 1: Take the natural logarithm of both sides of the equation:

  ln(y) = ln((ln(x + 4))x)

Step 2: Use the logarithmic property ln(a^b) = b ln(a) to simplify the right-hand side of the equation:

  ln(y) = x ln(ln(x + 4))

Step 3: Differentiate both sides of the equation implicitly with respect to x:

  (1/y) * y' = ln(ln(x + 4)) + x * (1/ln(x + 4)) * (1/(x + 4))

Step 4: Simplify the expression on the right-hand side:

  y' = y * [ln(ln(x + 4)) + (1/ln(x + 4)) * (1/(x + 4))]

Step 5: Substitute the original expression of y = (ln(x + 4))x back into the equation:

  y' = (ln(x + 4))x * [ln(ln(x + 4)) + (1/ln(x + 4)) * (1/(x + 4))]

Therefore, the derivative of the function y = (ln(x + 4))x using logarithmic differentiation is given by y' = (ln(x + 4))x * [ln(ln(x + 4)) + (1/ln(x + 4)) * (1/(x + 4))].

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Answer:

\(4(x + 1)^{2}(x - 1)^{2}\)

Step-by-step explanation:

STEP 1:

The equation at the end of step 1

\(((4 (x^4)) - 2^3x^2) + 4\)

STEP 2:

The equation at the end of step 2:

\((2^2x^4 - 2^3x^2) + 4\)

STEP 3:

STEP 4: Pulling out like terms

4.1 Pull out like factors:

\(4x^4 - 8x^2 + 4 = 4(x^4 - 2x^2 + 1)\)

Trying to factor by splitting the middle term

4.2 Factoring \(x^4 - 2x^2 + 1\)

The first term is, \(x^4\) its coefficient is 1.

The middle term is,  \(-2x^2\)  its coefficient is -2.

The last term, "the constant", is +1.

Step-1: Multiply the coefficient of the first term by the constant   1 • 1 = 1

Step-2: Find two factors of  1  whose sum equals the coefficient of the middle term, which is -2.

-1 + -1 = -2 That's it

Step-3: Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -1  and  -1

                    x4 - 1x2 - 1x2 - 1

Step-4 : Add up the first 2 terms, pulling out like factors :

                   x2 • (x2-1)

             Add up the last 2 terms, pulling out common factors :

                    1 • (x2-1)

Step-5 : Add up the four terms of step 4 :

                   (x2-1)  •  (x2-1)

            Which is the desired factorization

Trying to factor as a Difference of Squares:

4.3      Factoring:  x2-1

Theory : A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

        A2 - AB + AB - B2 =

        A2 - B2

Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression.

Check : 1 is the square of 1

Check :  x2  is the square of  x1

Factorization is :       (x + 1)  •  (x - 1)

Trying to factor as a Difference of Squares:

4.4      Factoring:  x2 - 1

Check : 1 is the square of 1

Check :  x2  is the square of  x1

Factorization is :       (x + 1)  •  (x - 1)

Multiplying Exponential Expressions:

4.5    Multiply  (x + 1)  by  (x + 1)

The rule says : To multiply exponential expressions which have the same base, add up their exponents.

In our case, the common base is  (x+1)  and the exponents are :

         1 , as  (x+1)  is the same number as  (x+1)1

and   1 , as  (x+1)  is the same number as  (x+1)1

The product is therefore,  (x+1)(1+1) = (x+1)2

Multiplying Exponential Expressions:

4.6    Multiply  (x-1)  by  (x-1)

The rule says : To multiply exponential expressions which have the same base, add up their exponents.

In our case, the common base is  (x-1)  and the exponents are :

         1 , as  (x-1)  is the same number as  (x-1)1

and   1 , as  (x-1)  is the same number as  (x-1)1

The product is therefore,  (x-1)(1+1) = (x-1)2

Final result :

 4 • (x + 1)2 • (x - 1)2

Answer:

Exponential equations are equations in which variables occur as exponents. For example, exponential equations are in the form ax=by . To solve exponential equations with the same base, use the property of equality of exponential functions

Answer:

Step-by-step explanation:

A bitmap is a digital image format that is made up of a grid of square colored dots called pixels.

Each pixel in the bitmap contains information about its color and position, which allows the computer to display the image on a screen or print it on paper. Bitmaps are commonly used for photographs, illustrations, and other complex images that require a high degree of detail and color accuracy.

However, because bitmaps store information for each individual pixel, they can be memory-intensive and may result in large file sizes. Additionally, resizing a bitmap can lead to a loss of quality, as the computer must either interpolate or discard pixels to adjust the image size.

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Answer:

i think it is. r = -s + 3z could be wrong sorry if it is

A boolean expression can have one of the two values, true or false and is often used in if statements.

Given: To identify what is used in if statements that has either of the two values, true or false.

What are boolean expressions?

Boolean expressions are logical statements that can either be true or false.

Boolean expressions are used to compare different values which are of the same domain and to verify if the condition of comparison is true or false.

For example: 4 > 5 , is this statement true? With the help of boolean variables "true" and "false" we can say that 4 > 5 is "false"

NOTE: There are two boolean variables : TRUE and FALSE

The boolean value TRUE is equivalent to 1 in the integer domain.

The boolean value FALSE is equivalent to 0 in the integer domain.

The common operators that are often used in boolean expressions are OR, AND and NOT.

For example: 7 > 6 OR 0 < 90

Now 7 > 6 is TRUE, also 0 < 90 is TRUE

So, TRUE OR TRUE gives TRUE

Hence 7 > 6 OR 0 < 90 is TRUE, the condition is verified.

The "if" statement is a conditional statement in programming which when TRUE performs certain given information and if FALSE it either terminates or performs some other statements that may be defined in the else or the FALSE part.

"if" statements works on boolean values TRUE and FALSE.

It's like IF this is TRUE do this or ELSE do that.

The structure of if statement is:

if <condition>

    //statements [executed if condition is TRUE]

else

    //statements [executed if condition is FALSE]

Hence a boolean expression can have one of the two values, true or false and is often used in if statements

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A Boolean expression can have one of the two values, true or false and is often used in if statements.

We are given a statement about an expression which can have the values as true or false and is mostly used in the if statements.

We need to identify the expression that they are talking about.

We get that, they are talking about the Boolean expression as it is the only expression that has the values as True or False and is often used in the if statements to know whether those statements are correct or not.

Therefore, a Boolean expression can have one of the two values, true or false and is often used in if statements.

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15% of the time, the probability that student who chose to walk has been late.

From the stated data-

37.5% of the 40% of students who walk to school have been late.

Thus,  37.5% of 40%

= 0.375 x 0.40

= 0.1500

= 15%

Thus, 15% of the time, the student who chose to walk has been late atleast once .

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The complete question is-

At a large high school 40 percent of the students walk to school, 32 percent of the students have been late to school at least once, and 37.5 percent of the students who walk to school have been late to school at least once. One student from the school will be selected at random. What is the probability that the student selected will be one who both walks to school and has been late to school at least once?

Step-by-step explanation:

ANSWER: DAB

A ternary string is a string composed of characters 0, 1, and 2. The number of ternary strings that contain exactly n characters, each of which is one of three types, is 3^n.Exactly 5 0s, 5 1s, and 5 2s are required for the ternary string, which means that the total number of characters is 15.

Each of these characters can be one of three types (0, 1, or 2). As a result, the total number of possible strings is 3^15. This is equivalent to 14,348,907. We arrived at this conclusion by computing 3 to the fifteenth power.Explanation:When constructing a sequence of three symbols, the first symbol has three alternatives, the second symbol has three alternatives, and so on. There are n choices for each of the n characters, resulting in a total of 3^n possible sequences.Example 1:Let's assume we have to create 5-character sequences with three symbols: a, b, and c. There are 3*3*3*3*3 = 243 possible sequences since there are three choices for each symbol.Example 2:Let's assume we have to construct a 10-character sequence using three symbols: 0, 1, and 2. There are 3*3*3*3*3*3*3*3*3*3 = 59,049, a total of 59,049 possible 10-character sequences. We can perform the same calculation for 15-character strings using the same logic.

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