John has $23. 65 spend on a book and magazines. The book costs $5. 95z the magazines cost $2. 95 each. A) write an equation that models the number of magazines that John can afford. B) solve the equation

Answer: Si la suma no es divisible entre 5 seria 13 porque eso sale un decimal. Y no es divisible por 6.

Step-by-step explanation:

Answer:

D. 3x + 3 + 6 = 33

Step-by-step explanation:

3(x +1) + 6 = 3

multiply 3 by everything in the parenthesis

3(x) + 3(1) + 6 = 33

3x + 3 + 6 = 33

I hope this helps!

Answer:

43.52 in.

Step-by-step explanation:

7 in. x 10.2 in. = 71.4 in.

4.1 in. x 6.8 in. = 27.88 in.

71.4 in. - 27.88 in. = 43.52 in.

The total charge on the rod is approximately 12.6424nC, or 2.0nC considering the correct significant figures.

To find the total charge on the rod, we need to integrate the charge density function over the length of the rod. Given that the charge density is non-uniform and varies with position along the rod, we can express the charge density as a function of x, where x is the distance from the left end of the rod.

The charge density function is given as λ(x) = (2.0nC/cm) * e^(-x/10).

To find the total charge, we integrate the charge density function from x = 0 to x = 10 cm:

Q = ∫(0 to 10) λ(x) dx.

Substituting the given charge density function into the integral, we have:

Q = ∫(0 to 10) (2.0nC/cm) * e^(-x/10) dx.

Integrating this expression gives us:

Q = -20nC * [e^(-x/10)] evaluated from 0 to 10.

Evaluating the expression at x = 10 and subtracting the value at x = 0, we get:

Q = -20nC * (e^(-10/10) - e^(0/10)).

Simplifying further:

Q = -20nC * (e^(-1) - 1).

Using the value of e (approximately 2.71828), we can calculate:

Q = -20nC * (2.71828^(-1) - 1).

Q ≈ -20nC * (0.36788 - 1).

Q ≈ -20nC * (-0.63212).

Q ≈ 12.6424nC.

Taking the absolute value of the charge (since charge cannot be negative), we find:

Q ≈ |12.6424nC|.

Therefore, the total charge on the rod is approximately 12.6424nC, or 2.0nC considering the correct significant figures.

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PROBLEMS. Write your answer in the space provided or on a separate sheet of paper. Show all work, and don't forget units! Partial credit will be given for showing a Free Body Diagram where appropriate. 11) A 10 cm long rod has a non-uniform charge density given by λ(x)=(2.0nC/cm)e^−x /10, where x is measured in centimeters from the left end of the rod. The left end is placed at the origin, and the rod lays along the positive x axis from 0 to 10 cm. a) What is the total charge on the rod?

The solution for t is t = 0.7297 or 2.4112.2). The solution for w is w = π/2, 3π/2, 7π/6, or 11π/6.3). There is no solution in the interval 0 ≤ x < 2π.

1) Given,

12 sin(t)cos(t) = 8 cos(t),

we need to simplify the equation and solve for t. 12 sin(t)cos(t) = 8 cos(t)

Divide both sides of the equation by 4.cos(t) * 3 sin(t) = 2 cos(t)3 sin(t) = 2sin(t) = 2/3

Taking inverse sin on both sides.t = sin^-1(2/3) = 0.7297 or t = π − 0.7297 = 2.4112

Hence, the solution for t is t = 0.7297 or 2.4112.2)

2) Given,

2 sin^2(w) − sin(w) − 1 = 0,

we need to solve for w using quadratic equation. 2 sin^2(w) − sin(w) − 1 = 0

Solving for sin w using quadratic equation. a = 2, b = −1, and c = −1.sin w = (1 ± √(1 + 8))/4sin w = (1 ± 3)/4sin w = 1 and sin w = −1/2

Taking inverse sin on both sides.

w = sin^-1(1) = π/2 or w = π − sin^-1(1) = 3π/2andw = sin^-1(-1/2) = 7π/6 or w = 11π/6

Hence, the solution for w is w = π/2, 3π/2, 7π/6, or 11π/6.3)

3) Given,

4 sin^2(x) − 10 sin(x) − 6 = 0,

we need to solve for x using quadratic equation.4 sin^2(x) − 10 sin(x) − 6 = 0

Solving for sin x using quadratic equation. a = 4, b = −10, and c = −6. sin x = (10 ± √(100 + 96))/8sin x = (10 ± 14)/8sin x = 3/2 or −1Sine of angle cannot be greater than 1 or less than -1.

Taking inverse sin on both sides, x = sin^-1(3/2) and x = sin^-1(-1).

Hence, there is no solution in the interval 0 ≤ x < 2π.

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2b + 3

Step-by-step explanation:

Combine like terms

7b -9b = -2b

-2b +4b =2b

2b +3 = 2b+3

Answer:

9y i can be rong

Step-by-step explanation:

The ratio of Men's jackets to Women's jackets inspected by the Quality Control unit in Year 5 is approximately 6.1 to 1.

A ratio is a mathematical comparison between two or more values or quantities. It expresses the relationship between the values in terms of size or amount, and is often written as a fraction or as a colon-separated pair of numbers

Ratios are used to make comparisons between values or quantities that have different units or scales, and to represent proportional relationships between them.

This can be expressed as a fraction is

=> 11343 / 1856

=> 6.1.

So, for every 6.1 Men's jackets, there is 1 Women's jacket.

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ANSWER

EXPLANATION

We want to identify the option that is completely factored.

For an expression to be completely factored, it means that there are no more common terms between the terms in the expression.

That means it can not be factored any further.

Therefore, the only correct option is:

Answer:

0.259

Step-by-step explanation:

There are some rules in determining what numbers are significant figures.

We can determine how many significant figures the number currently has.

There are currently seven significant figures. In order to round the number to three significant figures, we must round it to the thousandths place, or the 9.

The rounding rules are:

Since 0 is less than 5, the number rounded to 3 significant figures is 0.259.

The 90% confidence interval obtained from examining 653 customers in one fast food chain's drive-through has a lower bound of 178.2 seconds and an upper bound of 181.6 seconds. This means that based on the sample data collected from the 653 customers, we can be 90% confident that the true average drive-through service time for this fast food chain falls within the range of 178.2 seconds to 181.6 seconds.

In other words, if we were to repeatedly sample 653 customers from the same fast food chain's drive-through and calculate confidence intervals, approximately 90% of those intervals would contain the true average service time of the entire population of customers.

The range between the lower and upper bounds of the confidence interval provides an estimate of the precision or uncertainty associated with our sample mean.

The narrower the interval, the more precise our estimate of the true population mean becomes. In this case, the interval is relatively narrow, indicating a relatively precise estimate of the average drive-through service time for this fast food chain based on the sample data.

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To determine whether the vectors (-2,1,-1) and (0,3,1) are parallel, we need to compare their direction. If they have different directions, they are not parallel. the correct answer is option c) Not parallel.

To check if two vectors are parallel, we can compare their direction vectors. The direction vector of a vector can be obtained by dividing each component of the vector by its magnitude. In this case, let's calculate the direction vectors of the given vectors.

The direction vector of (-2,1,-1) is obtained by dividing each component by the magnitude:

Direction vector of (-2,1,-1) = (-2/√6, 1/√6, -1/√6)

The direction vector of (0,3,1) is obtained by dividing each component by the magnitude:

Direction vector of (0,3,1) = (0, 3/√10, 1/√10)

Comparing the direction vectors, we can see that they are not equal. Therefore, the vectors (-2,1,-1) and (0,3,1) are not parallel. Hence, the correct answer is option c) Not parallel.

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Yes, If a null hypothesis is rejected at the 0.02 level of significance, it means that the probability of observing such a result by chance is less than 2%. Option A is the correct answer.

The level of significance, also known as alpha, is the probability of making a Type I error, which is the rejection of a null hypothesis when it is actually true. Commonly used levels of significance are 0.05 and 0.01, but they can also be set to any value depending on the context and the researcher's preference.

If a null hypothesis is rejected at the 0.02 level of significance, it means that there is strong evidence against the null hypothesis and the result is statistically significant.

This also implies that the probability of observing such a result by chance is less than 2%. Therefore, if the null hypothesis can be rejected at a lower level of significance, it automatically implies that it can also be rejected at a higher level of significance.

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Answer:

9

Step-by-step explanation:

let's assume ;

12=a

15=c

?=b

so;

a2+b2=c2

(12)2+b2=(15)2

144+b2=225

b2=225-144

b2=81 (square root both sides)

You'll get

b=9

NB; 2 is used as squared

Answer:

ITS 9

Step-by-step explanation:

Trust me i just finished the quiz (credit to dude on top)

The apothem is the perpendicular distance from the center of a regular polygon to any one of its sides.

A closed, two-dimensional, flat or planar structure with straight sides is referred to as a polygon. Its sides do not bend in any way. A polygon's sides are also referred to as its edges. A polygon's vertices (or corners) are the places where two sides converge. Polygons and polyhedrons are two names for geometric shapes having three or more sides. The names of a few polygons are listed below. In order to link and develop projects and blockchains that are compatible with Ethereum, Polygon (MATIC), a cryptocurrency and technological platform, was introduced. A polygon is a fully closed, two-dimensional (2D), flat form with straight sides (all the sides are joined up). They must have straight sides. Any number of sides can be found in polygons.

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Answer:

300 mins

Step-by-step explanation:

1 hours = 60 mins

5 hours = 5×60=300 mins

Answer:

300

Step-by-step explanation:

5 * 60 (minutes in an hour) = 300

An expression which can be used to determine the total distance in miles that Aisha walked over the 3 days is: C. 3 × 3/4.

In Science, distance can be defined as the amount of ground that is covered (travelled) by a physical object over a particular period of time and speed, irrespective of its direction, starting point or ending point.

In Mathematics, an expression is sometimes referred to as an equation and it can be defined as a mathematical equation which is typically used for illustrating the relationship that exist between two (2) or more variables and numerical quantities.

From the information provided, we know that Aisha walked three (3) days in a row and three (3) miles out of four (4) miles. Therefore, a mathematical expression that represents the total distance in miles that she walked over the three (3) days is given by;

Total distance = 3/4 + 3/4 + 3/4

Total distance = 3 × 3/4

Total distance = 9/4 or 2.25 miles.

In conclusion, Aisha walked a total distance of 9/4 miles or 2.25 miles over the three (3) days.

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Answer:

How to solve your problem

Step-by-step explanation:

1.1    x2 multiplied by x1 = x(2 + 1) = x3

Final result

 y6x3

5 km = 5000 meters

66 minutes = 3960 seconds

Meters per second = 5000/3960 = 1.26

The answer is A.1.26

Let's simplify the expression step by step: Expand the squared term:

(x - 3y)² = (x - 3y)(x - 3y) = x² - 6xy + 9y²

Expand the second term:

3(x + y)(x − 4y) = 3(x² - 4xy + xy - 4y²) = 3(x² - 3xy - 4y²)

Expand the third term:

x(3x + 4y + 3) = 3x² + 4xy + 3x

Now, let's combine all the expanded terms:

(x - 3y)² + 3(x + y)(x − 4y) + x(3x + 4y + 3)

= x² - 6xy + 9y² + 3(x² - 3xy - 4y²) + 3x² + 4xy + 3x

Combining like terms:

= x² + 3x² + 3x² - 6xy - 3xy + 4xy + 9y² - 4y² + 3x

= 7x² - 5xy + 5y² + 3x

The simplified form of the expression is 7x² - 5xy + 5y² + 3x.

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Step-by-step explanation:

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Answer:

question wdym by links?

Step-by-step explanation:

Answer:

x = 6

Step-by-step explanation:

x:(x + 3) = 2:3

\( \frac{ \\ x}{x + 3} = \frac{2}{3} \)

cross multiply

3x = 2(x + 3)

3x = 2x + 6

subtract (2x) from both sides

3x – 2x = 2x – 2x + 6

x = +6

x = 6

P(Z=z) = 1/1600 for z = 1, 2, ..., 40, and P(Z=z) = 0 .Based on the given information, we have two discrete random variables, X and Y,

with a joint probability mass function (pmf) denoted as P(X,Y).

The joint pmf is defined as follows:

P(X=x, Y=y) = 1/1600 for x = 1, 2, ..., 40 and y = 1, 2, ..., 40

P(X=x, Y=y) = 0 otherwise

We are also asked to define a new random variable Z, which is defined as the minimum of X and Y.

To find the probability mass function (pmf) of Z, we need to calculate P(Z=z) for each possible value of z.

Let's consider a specific value of z. We can express P(Z=z) as follows:

P(Z=z) = P(min(X,Y) = z)

Since Z is the minimum of X and Y, we can see that Z can only take on values that are common to both X and Y. In other words, if Z=z, then both X and Y must be equal to z.

Therefore, for a specific value of z, P(Z=z) can be written as the joint probability of X and Y when they are both equal to z:

P(Z=z) = P(X=z, Y=z)

Using the given joint pmf, we can substitute z into the equation and calculate P(Z=z):

P(Z=z) = P(X=z, Y=z) = 1/1600

So, the pmf of Z is given by:

P(Z=z) = 1/1600 for z = 1, 2, ..., 40

P(Z=z) = 0 otherwise

In summary, the random variable Z, defined as the minimum of X and Y, has a probability mass function (pmf) where P(Z=z) = 1/1600 for z = 1, 2, ..., 40, and P(Z=z) = 0 otherwise.

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Answer:

1/6

Step-by-step explanation:

1/3×2/4 = 2/12

2/12 = 1/6

Answer:

-6 is a rational number and an integer

Step-by-step explanation: