I bought 8 1/4 feet of ribbon. How many inches of ribbon do I have? Pls help

Answer:

385000 rupees

Step-by-step explanation:

50x50 = 2500sq. m

2500 x 154 = 385000 rupees

Answer:

Here is your answer with solutions!

The ratio to represent the relationship between hallies donation of jeans and Mattie’s donations of jeans is 1:3.

Ratio demonstrates how many times one number can fit into another number. Ratios contrast two numbers by ordinarily dividing them. A/B will be the formula if one is comparing one data point (A) to another data point (B).

In this situation, Hallie donated 2 pairs of blue jeans. Mattie donated 6 pairs of blue jeans.

The ratio to represent the relationship between hallies donation of jeans and Mattie’s donations of jeans will be:

= 2/6

= 1/3

= 1:3

The ratio is 1:3.

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Answer:

1:2

Step-by-step explanation:

i took the test and its right :)

( sorry instead of 2 on the test it said 3 on mine, but if yours says 3 the answer is 1:2. i don't know the answer to 2 pairs of jeans)

Answer:

1. 1.25 \(g/cm^{3}\)

2. 1.36 \(g/cm^{3}\)

3. 1.04 \(g/cm^{3}\)

4. 0.79 \(g/cm^{3}\)

Step-by-step explanation:

Density = Mass/Volume

1. 15g/\(12cm^{3}\) = 1.25 \(g/cm^{3}\)

2. 7.5g/\(5.5cm^{3}\) = 1.36 \(g/cm^{3}\)

3. 26g/\(25cm^{3}\) = 1.04 \(g/cm^{3}\)

4.  1350g/\(1700cm^{3}\) = 0.79 \(g/cm^{3}\)

Answer:

1. 1.25

2. 1.36

3. 1.04

4. 0.79

The Laplace transform of the given function is L{ \(e^(2-t^)\) u(t-2)} =  \(e^-^2^s\)  * e² * (1/(s + 1)).

The Laplace transform L{ \(e^(2-t^)\) u(t-2)} can be found using the following steps:

1. Identify the function: f(t) =  \(e^(2-t^)\) u(t-2)
2. Apply the time-shift property: L{ \(e^(2-t^)\) u(t-2)} = \(e^-^2^s\)  * L{e² *  \(e^-^t\) }
3. Calculate the Laplace transform: L{e² *  \(e^-^t\) } = e² * L{ \(e^-^t\) }
4. Apply the formula: L{ \(e^-^t\) } = 1/(s + 1)
5. Multiply:  \(e^-^2^s\)  * e² * (1/(s + 1))

In this process, we first identified the given function and then applied the time-shift property to simplify it.

Next, we calculated the Laplace transform of the simplified function using the formula for the Laplace transform of an exponential function. Finally, we combined the results to obtain the Laplace transform of the original function.

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Answer:

1hr = $9

7hrs = (9×7)

=$63

Step-by-step explanation:

HOPE THAT THIS IS HELPFUL.

HAVE A GREAT DAY.

We have:tan^(-1)(1/11) + tan^(-1)(5/6) + tan^(-1)(1/3) + tan^(-1)(1/2) = tan^(-1)(7/2)

To prove the equation tan^(-1)(1/11) + tan^(-1)(5/6) + tan^(-1)(1/3) + tan^(-1)(1/2) without using a calculator, we can utilize the trigonometric properties and identities to simplify the expression.

Let's start by using the addition formula for the tangent function:

tan(A + B) = (tan(A) + tan(B)) / (1 - tan(A) * tan(B))

We can rewrite the given expression as:

tan^(-1)(1/11) + tan^(-1)(5/6) + tan^(-1)(1/3) + tan^(-1)(1/2)

Using the addition formula, we can combine the first two terms:

tan^(-1)(1/11) + tan^(-1)(5/6) = tan^(-1)((1/11 + 5/6) / (1 - (1/11)*(5/6)))

Simplifying further:

tan^(-1)(1/11) + tan^(-1)(5/6) = tan^(-1)((11/66 + 55/66) / (1 - 5/66))

tan^(-1)(1/11) + tan^(-1)(5/6) = tan^(-1)(66/66 / (61/66))

tan^(-1)(1/11) + tan^(-1)(5/6) = tan^(-1)(1)

Using the same approach, we can combine the remaining terms:

tan^(-1)(1/3) + tan^(-1)(1/2) = tan^(-1)((1/3 + 1/2) / (1 - (1/3)*(1/2)))

tan^(-1)(1/3) + tan^(-1)(1/2) = tan^(-1)((5/6) / (3/2))

tan^(-1)(1/3) + tan^(-1)(1/2) = tan^(-1)(5/9)

Now, we have:

tan^(-1)(1/11) + tan^(-1)(5/6) + tan^(-1)(1/3) + tan^(-1)(1/2) = tan^(-1)(1) + tan^(-1)(5/9)

Using the addition formula again:

tan^(-1)(1) + tan^(-1)(5/9) = tan^(-1)((1 + 5/9) / (1 - (1)*(5/9)))

tan^(-1)(1) + tan^(-1)(5/9) = tan^(-1)((14/9) / (4/9))

tan^(-1)(1) + tan^(-1)(5/9) = tan^(-1)(14/4)

tan^(-1)(1) + tan^(-1)(5/9) = tan^(-1)(7/2)

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The probability that the blood sample mixture will test positive is 0.50.

For the stated question-

The likelihood that one sample will be negative is unrelated to the likelihood that the other samples will also be negative.

The chance of the 6 combined events, all of which are negative, is then equal as the product of a probabilities for every sample (each negative).

One sample being negative has a chance of 0.89 (1 - 0.11).

The total probability is hence (0.89)⁶ = 0.497  ≈ 0.50

Thus, the probability that the blood sample mixture will test positive is 0.50.

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In the subtraction using 8-bit representation and 2's complement, the given numbers are converted to binary. The 2's complement of the subtrahend is found by inverting the bits and adding 1. The subtraction is performed by adding the minuend and the 2's complement of the subtrahend. If the result is negative, its 2's complement is taken to find the positive value. The final answer is obtained as the positive value with a minus sign if applicable.

a. To perform the subtraction 42 - 18 using 8-bit representation and 2's complement of the subtrahend:

Convert the numbers to their binary representation:

42 (decimal) = 00101010 (8-bit binary)

18 (decimal) = 00010010 (8-bit binary)

Find the 2's complement of the subtrahend (18):

Invert all the bits: 00010010 → 11101101

Add 1: 11101101 + 00000001 = 11101110

Perform the subtraction by adding the minuend (42) and the 2's complement of the subtrahend (-18):

00101010 (42) + 11101110 (-18's 2's complement) = 10011000 (-40 in decimal)

Since the result is negative (-40), we take its 2's complement to find the positive value:

Invert all the bits: 10011000 → 01100111

Add 1: 01100111 + 00000001 = 01101000 (40 in decimal)

Therefore, 42 - 18 = 40.

b. To perform the subtraction 17 - 38 using 8-bit representation and 2's complement of the subtrahend:

Convert the numbers to their binary representation:

17 (decimal) = 00010001 (8-bit binary)

38 (decimal) = 00100110 (8-bit binary)

Find the 2's complement of the subtrahend (38):

Invert all the bits: 00100110 → 11011001

Add 1: 11011001 + 00000001 = 11011010

Perform the subtraction by adding the minuend (17) and the 2's complement of the subtrahend (-38):

00010001 (17) + 11011010 (-38's 2's complement) = 11101011 (-21 in decimal)

Since the result is negative (-21), we take its 2's complement to find the positive value:

Invert all the bits: 11101011 → 00010100

Add 1: 00010100 + 00000001 = 00010101 (21 in decimal)

Therefore, 17 - 38 = -21, or in positive form, 21 with a minus sign (-21).

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Answer:

  (x/9)² +(y/3)² = 1 . . . P = (x, y)

Step-by-step explanation:

You want the equation of the locus of a point P that is 3 cm from the x-axis end of a 12 cm rod whose ends are on the x- and y-axes.

Let the x- and y-intercepts of the rod ends be represented by 'a' and 'b', respectively. The fixed length of the rod tells us ...

  a² +b² = 12²

according to the Pythagorean theorem.

The location of point P is 3/12 = 1/4 of the way from the x-intercept to the y-intercept. Its coordinates in terms of 'a' and 'b' are ...

  P = 3/4(a, 0) +1/4(0, b) = (3a/4, b/4)

If we define the point P as having coordinates (x, y), then we have ...

  3a/4 = x   ⇒   a = 4/3x

  b/4 = y   ⇒   b = 4y

Using these values in the above relation between 'a' and 'b', we have ...

  (4/3x)² +(4y)² = 12²

We can divide by 12² to get the following equation of the ellipse that is the locus of P.

  (x/9)² +(y/3)² = 1 . . . . . . useful domain/range: 0≤x≤9; 0≤y≤3.

Using this mean number of calories, we can best predict that 25% of all cereals have more than this number of calories per serving, and 25% of all cereals have fewer than this number of calories per serving. To find the percent of all servings of cereal that have between 172 and 197 calories, we would use the z-score formula. Z = (x-mean)/standard deviation, where x is the number of calories (172 or 197).

The population standard deviation can be found using the formula s = sqrt[ (1/n) * (sum of (x-mean)^2)], where n is the sample size (30) and x is the number of calories for each cereal box.

Finally, to find the number of standard deviations above the mean that the third quartile is, we would use the formula
z = (Q3 - mean)/standard deviation, where Q3 is the third quartile.

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Answer:

1:00 PM

Step-by-step explanation:

8:30 AM + 2.35h + 1.30h + 25m = 1:00 PM

Answer:

9

Step-by-step explanation:

1.08 divided by 0.12 equals 9

There are several different sampling methods that could be employed for this study, including:

Simple random sampling: This method involves randomly selecting a certain number of students from each campus and measuring the distance between their hometowns and their campuses.

Stratified random sampling: This method involves dividing the student population at each campus into different strata (e.g. by major or year in school) and then randomly selecting a certain number of students from each stratum.

Cluster sampling: This method involves randomly selecting a certain number of campuses and then measuring the distance between the hometowns of all students at those campuses and their respective campuses.

Multi-stage sampling: This method involves using a combination of the above methods, such as first using cluster sampling to select a certain number of campuses and then using stratified random sampling to select a certain number of students from each campus.

This study would be an enumerative study because it seeks to measure the characteristics of a population, in this case, the average distance between the hometowns of students and their campuses, by counting and measuring them.

It is not an analytic study because it doesn't involve testing a hypothesis or making causal inferences.

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Answer:

In mathematics, the Pythagorean theorem, or Pythagoras's theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle. It states that the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides. This theorem can be written as an equation relating the lengths of the si…

Step-by-step explanation:

Answer: Hope This Helps!

Step-by-step explanation:

Pythagoras Theorem Statement Pythagoras theorem states that “ In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides “. The sides of this triangle have been named as Perpendicular, Base and Hypotenuse.

The points A,B and C are collinear so the value of x is -11/3 and the value of y is 0 as calculated using the section formula for the midpoint of a line segment.

If three points are collinear then the slope between any two points on the line will be same.

Slope of AB = (1+3) / (-1-x) will be equal to slope of BC = (7-1) / (3+1)

Hence :  (1+3) / (-1-x) =  (7-1) / (3+1)

Now we will solve the linear equation to find the value of x .

4 / (-1-x) = 6 / 4

or, 16 = -6 (x+1)

or, 16 = -6x -6

or, 6x = 22

or, x = -11/3

Now using section formula for midpoint we get the coordinates of P and R.

\({\displaystyle P=\left({\frac {mx_{2}+nx_{1}}{m+n}},{\frac {my_{2}+ny_{1}}{m+n}}\right)}\)

Abscissae of R = x , hence

x+(-2) = 3×2

or, x = 8

Again the ordinate of P is y

∴y-8 = -4 × 2

or, y = 0

Hence the coordinates of P is (-2,0) and the coordinates of R is (8,-8)

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Answer:

(5, 0)

Step-by-step explanation:

The slope of the first line is -(-1 / 1) = 1.

The slope of the second line is -(3 / 5) = -3/5.

Since the lines have different slopes, they intersect at a single point. Therefore, there is only one solution. To find it, solve the system of equations.

Using elimination, multiply the first equation by 3 and add it to the second.

-3x + 3y = -15

3x + 5y = 15

-------------------

8y = 0

y = 0

Using substitution, find x:

-x + 0 = -5

x = 5

The solution is (5, 0).

Answer:

The total value of the discount was $10.80.

Step-by-step explanation:

Since we are finding the value of the discount, we just need to find 18% of 60.

We can convert 18% into a decimal.

18%=0.18

Multiply.

0.18*60=10.8

The total value of the discount was $10.80.

h = 11.9 cm

cos = adjacent/ hypotenuse

therefore:

cos(24) = h/ 13

rearrange:

h = 13cos(24)

put into calculator:

h = 11.8760...

rounded to one decimal point:

h = 11.9cm

Answer:

f(x) = -1/x^2 + 4e^x + 5x + 1 + 1/x - 4e^(-1)

Step-by-step explanation:

We can find the function f(x) by integrating f'(x) with respect to x:

â«f'(x) dx = â«(2/(x^3) + 4e^x + 5) dx

f(x) = -1/x^2 + 4e^x + 5x + C

To find the constant C, we can use the given initial conditions:

f(-1) = 1 = -1/(-1)^2 + 4e^(-1) - 5 + C

C = 1 + 1/1 - 4e^(-1)

f(x) = -1/x^2 + 4e^x + 5x + 1 + 1/x - 4e^(-1)

Therefore, the function f(x) is:

f(x) = -1/x^2 + 4e^x + 5x + 1 + 1/x - 4e^(-1)

There are three ways to name an angle--by its vertex, by the three points of the angle (the middle point must be the vertex), or by a letter or number written within the opening of the angle.

You can name a specific angle by using the vertex point, and three points on each of the angle's rays or by letter or number written. The name of the angle is simply the three letters representing those points, with the vertex point listed in the middle. You can also name angles by looking at their size. Right angles are 90 degrees. Acute angles are less than 90 degrees. Obtuse angles are greater than 90 degrees, but less than 180 degrees, which is a straight angle, or a straight line.

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Answer:

0.6 is the diference

Step-by-step explanation:

The given statement: n(n+1)(2n+1) is divisible by 6 for all positive integers n.

Step-by-step explanation: We need to prove that n(n+1)(2n+1) is divisible by 6 for all positive integers n using mathematical induction.

Step 1: First, lets prove the statement for the smallest possible value of n. The smallest value of n is 1. So, let's check whether the given statement is true for n = 1 or not.

\(LHS = 1(1+1)(2*1+1) = 6\)

It is divisible by 6. Hence, the statement is true for n=1.

Step 2: Let's assume that the statement is true for n=k. So, we can say that n(n+1)(2n+1) is divisible by 6 for n=k. i.e., n(n+1)(2n+1) = 6a (for some integer a).

Step 3: We need to prove the statement is true for n=k+1.

So, we need to prove that (k+1){(k+1)+1}[2(k+1)+1] is divisible by 6

Using the assumption we made in step 2.

\(LHS = (k+1){(k+2)}[2k+3] = (k+1)(k+2)(2k+3)LHS = (2k+3)k(k+1)(k+2)LHS = 2[k(k+1)(k+2)] + 3[k(k+1)]\)

Now, k(k+1)(k+2) is divisible by 6 using the assumption made in step 2.

So, LHS = 2[k(k+1)(k+2)] + 3[k(k+1)] is also divisible by 6.

Hence, the statement is true for n=k+1.

Step 4: Using steps 1 to 3, we can say that the given statement is true for n=1 and if it is true for n=k, then it is also true for n=k+1.

Hence, by mathematical induction, we can say that the statement is true for all positive integers n.

Hence, it is proved that n(n+1)(2n+1) is divisible by 6 for all positive integers n.

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The three true statements about the two triangles are:
- Î"xyz is similar to Î"x'y'z'
- Angle xzy is congruent to Angle y'z'x'.
- The length of yx is twice the length of y'x'

1. Î"xyz ~ Î"x'y'z': The two triangles are similar because the reflection preserves the shape and the dilation with a scale factor of one-half changes the size proportionally.
2. Angle xzy ≅ Angle y'z'x':

Since the triangles are similar, their corresponding angles are congruent.

The reflection and dilation transformations do not affect the angle measures.
3. yx = 2y'x':

Due to the dilation with a scale factor of one-half, the corresponding side lengths of the triangles have a ratio of 2:1. So, the length of yx is twice the length of y'x'.

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Answer:

  (d)  59 ft

Step-by-step explanation:

In the geometric model of the problem, the guy wire is the hypotenuse of a right triangle, with the tower being one leg, and the distance along the ground from the tower being the other leg. The ground distance is "adjacent" to the angle of elevation, so the relevant trig function is ...

  Cos = Adjacent/Hypotenuse

Solving for the hypotenuse, gives ...

  hypotenuse = adjacent/cos(α) = (34 ft)/cos(55°) ≈ 59 ft

The length of the guy wire is about 59 feet.

Answer:

3/8

Step-by-step explanation:

There are 8 equal slices so each slice is 1/8th of the whole pizza

1/8+1/8=2/8 he ate right away

2/8+1/8 for what he ate before going to sleep

2/8+1/8=3/8

Answer:

B': (-12,15)

Step-by-step explanation:

The simplified expression of 7 * 2 * 7 * 5 is 490

The expression is given as

7*2*7*5

Rewrite the expression properly

This is done as follows

7 * 2 * 7 * 5

The factors of the expression have different basis

i.e. Basis = 7 , 2 and 5

This means that we cannot apply the law of indices

Solving further, we have the following equation:

7 * 2 * 7 * 5 = 7 * 2 * 7 * 5

Rearrange the factors

So, we have

7 * 2 * 7 * 5 = 7 * 7 * 2 * 5

Evaluate the products of 7 and 7 in the above equation

So, we have

7 * 2 * 7 * 5 = 49 * 10

Finally, we have

7 * 2 * 7 * 5 = 490

Hence, the simplified expression of the expression given as 7 * 2 * 7 * 5 is 490

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The simplified expression of the given 7 x 2 x 7 x 5 will be; 490

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

The expression is given as;

7 x 2 x 7 x 5

Rewrite the expression properly as follows;

7 x 2 x 7 x 5

The factors of the expression have different basis that is;

Basis = 7 , 2 and 5

Thus we can't apply the law of indices

Solving further, we have the equation;

7 x 5 x 7 x 2 = 7 x 2 x 7 x 5

Rearrange the factors;

7 x 2 x 7 x 5 = 7 x 7 x 2 x 5

7 x 2 x 7 x 5 = 49 x 10

Finally, we have the following

7 x 2 x 7 x 5 = 490

Hence, the simplified expression of the given 7 x 2 x 7 x 5 will be; 490

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For the regression equation and e the number of kilowatt-hours, in thousands, for a six-room house  is mathematically given as

Y = 1.33-0.667X and  5.3332

Generally, the equation for the  standard deviation  is mathematically given as

\(s\)ₓ =\(\sqrt{\frac{\sum\(X-\=X)^2}{n-1} }\)

= \(\sqrt{\frac{66.9}{10-1} }\)

= 2.72

\(s_y\) = \(\sqrt{\frac{36.4}{10-1} }\)

= 2.01

therefore correlation coff

r = \(\frac{44.6}{(10-1)(2.72)(2.01)}\)

r = 0.9038

In conclusion the regression equation is given

b = r_sy/sx

b = (0.9038)(2.01/2.72)

 = 0.667

intercept

a = 7.4-0.667(9.1)

a = 1.33

The regression equation is

Y = 1.33-0.667X

(b) number of kilowatts x = 6 house

Y = 1.33-0.667X

Y = 1.33-0.667(6)

 = 5.3332

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