Order the numbers from least to greatest: 130%, 1.32, 6/5, 5/4, 1.28​

Answer:

x = 5

y = 1

Step-by-step explanation:

2x - y = 9

3x + 4y = 19

We multiply the first equation by 4

8x - 4y = 36

3x + 4y = 19

11x = 55

x = 5

Now we put 5 in for x and solve for y

2(5) - y = 9

10 - y = 9

-y = -1

y = 1

Let's Check the answer

2(5) - 1 = 9

10 - 1 = 9

9 = 9

So, x = 5 and y = 1 is the correct answer.

Answer:

9 + c

Step-by-step explanation:

for example u have 9 apples and ur friend has "c" apples. ur friends gives u his/her apples.

Answer:

26

Step-by-step explanation:

convert 40% to 0.40

65 * 0.40 = 26

Answer:

67,600

Step-by-step explanation:

Bond angle would be 109.5°

What are bond angles?

The three-dimensional configuration of the atoms that make up a molecule is known as molecular geometry. In addition to bond lengths, bond angles, torsional angles, and any other geometrical factors that govern each atom's position, it also includes the molecule's overall structure.

Based on the information provided, the element x is likely to be chlorine, which has four valence electrons and an electronegativity of 3.0. If this is the case, then the compound xocl2 is likely to be dichlorine monoxide, which is a diatomic molecule with the formula Cl2O.

The geometry of dichlorine monoxide is bent, with an angle of approximately 113 degrees between the two chlorine atoms and the oxygen atom. This is due to the fact that the oxygen atom is more electronegative than the chlorine atoms, which causes the shared electrons in the oxygen-chlorine bonds to be more attracted to the oxygen atom. This causes the bond angles to be slightly less than the ideal tetrahedral angle of 109.5 degrees.

 \(import\ graph; \\size(8cm);\\ real ticklen=3; \\pen axispen=black+1.3bp;\\ pen gridpen=gray(0.22);\\ pen tickpen=black+0.8bp;\\ pen ticklabelpen=black;\\ pen vectorpen=black; \\\)

\(xaxis(extend=true, Ticks("%", pTick=tickpen, pTickLabel=ticklabelpen, Label("$x$", position=EndPoint, p=vectorpen),extend=true,extend_length=-10),p=axispen, above=true); \\\\yaxis(extend=true, Ticks("%", pTick=tickpen, pTickLabel=ticklabelpen, Label("$y$", position=EndPoint, p=vectorpen),extend=true,extend_length=-10),p=axispen, above=true); \\draw((0,0)--(2,0)--(1,1.73)--cycle); \\label("Cl", (0,0), SW); label("O", (1,1.73), N); \\label("Cl", (2,0), SE);\)

The actual structure of the molecule may be slightly different due to the presence of electronic and vibrational energy.

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The reasoning presented lacks explicit explanations and logical connections between the steps, making it difficult to fully understand the intended proof strategy.

The given proof aims to show that the Separation Axioms can be derived from the Replacement Schema using a particular construction involving a formula p(x, y). Let's analyze the proof step by step:

Define the formula p(x, y) as x = yo(x).

This formula states that for each x, y pair, x is equal to the unique object y such that y is obtained by applying the operation o to x.

Define the set F as {(x, x) (x)}.

This set F contains pairs (x, x) where x is the unique object obtained by applying the operation (x) to x.

Claim: F(X) = {y (x = X)p(x, y)} = {y: (x = X)x = y^o(x)} = {x: (3x € X)o(x)} = {x X: (x)}.

This claim asserts that F(X) is equivalent to {y (x = X)p(x, y)}, which is further equivalent to {y: (x = X)x = y^o(x)}, and so on.

The proof states that since (x, y) satisfies the functional formula VaVyVz(p(x, y)^(x, z) y = z), it follows that (x, y) is a functional formula.This step emphasizes that the formula p(x, y) satisfies certain properties that make it a functional formula, which is relevant for the subsequent deductions.

Finally, the proof concludes that the Separation Axioms follow from the Replacement Schema, based on the previous steps.

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Answer:

Can someone help, please?

-1/2(7z+4)+1/5(5z-15)

Answer:

21

Step-by-step explanation:

bc i said

A system of two equations involving L and W based on the perimeter and area information include the following:

Area equation: 60 = LW

Perimeter equation: 34 = 2(L + W).

Mathematically, the perimeter of a rectangle can be calculated by using this equation;

P = 2(L + W)

Similarly, the area of a rectangle can be calculated by using this mathematical expression:

A = LW

Where:

Substituting the given points into the perimeter and area of rectangle formula, we have the following;

A = LW ⇒ 60 = LW

P = 2(L + W) ⇒ 34 = 2(L + W).

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Answer: B i think

Step-by-step explanation:

A term can be a number, a variable, product of two or more variables or product of a number and a variable. An algebraic expression is formed by a single term or by a group of terms.

Answer:

y=8.94

Step-by-step explanation:

use the formula: a^2+b^2=c^2

64+y^2=144

y=\(\sqrt{80}\)

or y=8.94

The transformation in the picture is option c Reflection.

Given,

Reflection transformation:

A reflection is a transformation that works similarly to a mirror by switching all pairs of points that are directly across from one another along the line of reflection. A mathematical formula or the two sites it passes through can be used to define the line of reflection.

According to the law of reflection, r = I the angle of incidence and reflection are equal. θ r = θ I . At the point where the ray strikes the surface, the angles are measured in relation to the perpendicular to the surface.

Here,

In the picture the transformation is reflection.

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3.4

Step-by-step explanation:

The pH or acidity of a solution is given by the equation

\(pH = -\log{[H]}\)

where [H] is the concentration of \(H^+\) ions. If the \(H^+\) concentration is 0.0004 (=\(4×10^{-4}),\) then its pH level is

\(pH = -\log{(4×10^{-4})} = 3.4\)

answer:The rule of 72 says that an amount will double when the product of the percentage and the number of years equals 72...so for 8 years, you would need to earn 9%

Answer: 6x + 2y

Step-by-step explanation: 4y-2y are both alike terms, so you subtract the two, and then add 6x to it

Answer:

2y+6x

Step-by-step explanation:

4y + 6x - 2y

rewrite the equation

4y - 2y + 6x

subtract 4y from 2y

2y+6x

Step-by-step explanation:

are you sure that math cauz that looks difficult or maybe its the fact that I'm in the 4th grade

Answer:

Thus, the equation of line for point (-1, 2)  is y = x + 3.

Step-by-step explanation:

Answer:

The equation of the line is y = x + 3.

Step-by-step explanation:

A line that is parallel to y=x+4 and passes through the point (-1,2) will have the same slope as y=x+4. The slope of y=x+4 is 1, so the equation of the line will be in the form y = mx + b, where m=1. To find b, we can plug in x = -1 and y = 2 into the equation and solve for b.

y = mx + b

y = 1 * -1 + b

y = -1 + b

b = y + 1

b = 2 + 1

b = 3

Answer:

-1.5

Step-by-step explanation:

The correct statements are:

When a point is reflected across the x-axis, the x-coordinate remains the same, but the y-coordinate changes sign. Therefore, statement A) is true.

When a point is reflected across the y-axis, the y-coordinate remains the same, but the x-coordinate changes sign. Therefore, statement C) is true.

It should be noted that to represent the reflection of point A (1,-2) across the y-axis, we flip the sign of the x-coordinate to obtain the image point A' (-1,-2). Therefore, statement D) is true.

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Answer:

Step-by-step explanation:

Form a set of values we get

n = 17

And with the help of a calculator

μ₀ = 438,47

σ  = 14,79

Normal Distribution is :  N ( 438,47 ; 14,79 )

c)

CI = 95 % means  α = 5 %    α/2 = 2,5 %    α/2 = 0,025

and as n < 30  we should use t-student distribution with n -1 degree of freedom  df = 16.  t score for 0,025 and 16 s from t-table 2,120

By definition:

CI = [  μ₀  ±  t α/2 ; n-1 * σ/√n ]

CI = [  μ₀  ± 2,120* 14,79/√17 ]

CI = [  μ₀  ±  7,60 ]

CI = [ 438,47 ± 7,60 ]

CI = [  430,87 ; 446,07 ]

95% confidence interval for true average degree of polymerization is  [430.87 ; 446.07] and this interval suggest that 441 is a plausible value for true average degree of polymerization and also this interval does not suggest that 451 is a plausible value.

Given :

The total number of values given is, n = 17

Mean, \(\mu_0=438.47\)

Standard Deviation, \(\sigma = 14.79\)

The normal distribution is given by: N (438.47 ; 14.79)

If Cl  is 95% then \(\alpha\) is 5% and \(\alpha /2\) is 2.5%

\(\alpha /2 = 0.025\)

Now, use t-statistics distribution with (n-1) degree of freedom df = 16

So, the t score for 0.025 and 16 s from t-table 2.120.

\(\rm Cl = [\mu_0 \pm t_{\alpha /2};(n-1)\times \dfrac{\sigma}{\sqrt{n} }]\)

\(\rm Cl = [\mu_0 \pm 2.120\times \dfrac{14.79}{\sqrt{17} }]\)

\(\rm Cl = [\mu_0 \pm 7.60]\)

Cl = [430.87 ; 446.07]

Yes, the interval suggests that 441 is a plausible value for true average degree of polymerization.

No, the interval does not suggest that 451 is a plausible value.

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Answer:

13-n=4

Subtract both sides by 13

-n=-9

n=9

Step-by-step explanation:

13 less means - and a number means n that you don’t know. is means = sign. And so we get the answer that I gave you. Thank you

Answer:

288

Step-by-step explanation:

16 cups per gallon so 16x18=288

Answer:

288 cups

Step-by-step explanation:

We know that there are 16 cups in one gallon. Therefore, we just need to multiply that amount by the number of gallons brought to the football game. 18 x 16 = 288

Answer:

t = 1.2, -1.2

Answer:

F is at (2, -8)

Step-by-step explanation:

use the midpoint formula:  (sum of x-values/2, sum of y-values/2)

let (x,y) = coordinate of pt F

(0+x/2) = 1;  x = 2

(2+y/2) = -3;   2 + y = -6;   y = -8

Answer:

y = 8x² - 22x - 6

Step-by-step explanation:

y = (2x-6)(4x + 1)

y = 8x² + 2x  - 24x - 6

y = 8x² - 22x - 6

So, the answer is y = 8x² - 22x - 6

a) The confidence level of 99% means that we are 99% sure that the interval contains the true population proportion.

b) The 99% confidence interval for the population proportion is given as follows: (0.3145, 0.4055). It means that we are 99% sure that the true population proportion is between 0.3145 and 0.4055.

c) The 95% confidence interval would be narrower, as it would have a lower critical value, thus the margin of error would also be lower.

A confidence interval of proportions has the bounds given by the rule presented as follows:

\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)

In which the variables used to calculated these bounds are listed as follows:

The confidence level is of 99%, hence the critical value z is the value of Z that has a p-value of \(\frac{1+0.99}{2} = 0.995\), so the critical value is z = 2.575.

The parameters for this problem are given as follows:

\(\pi = 0.36, n = 739\)

The lower bound of the interval is given as follows:

0.36 - 2.575 x sqrt(0.36 x 0.64/739) = 0.3145.

The upper bound of the interval is given as follows:

0.36 + 2.575 x sqrt(0.36 x 0.64/739) = 0.4055.

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Given:

Solution:

Answer:

6mm

Step-by-step explanation:

radius = 1/2 of diameter

Answer:

\(\Huge \boxed{\text{13.66$\%$}}\)

Step-by-step explanation:

To find the rate, we need to use the following formula:

\(\LARGE \boxed{ \boxed{\text{Rate = $\frac{\text{Portion}}{\text{Base}}$$\times$100}}}\)

Where "Portion" is the part of the whole and "Base" is the whole.

Now, let's plug in the given values:

\(\large \text{Rate = $\frac{\text{50}}{\text{366}}$$\times$100 = 13.66 (Rounded to the nearest tenth of a percent)}\)

Therefore, the rate is 13.66% (rounded to the nearest tenth of a percent).

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The room’s area, in square inches is,

⇒ A = 144LW square inches.

We have to given that,

A rectangular room is tiled with tiles 12 inches long and 12 inches wide.

And, The room is L tiles long and W tiles wide.

Hence, Lenght of L tiles,

= 12L

And, Length of W tiles,

= 12W

Since, We know that,

Area of rectangle is,

⇒ A = Length x width

Substitute given values, we get;

⇒ A = 12L x 12W

⇒ A = 144LW square inches.

Therefore, The room’s area, in square inches is,

⇒ A = 144LW square inches.

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