If £25 = 450 rubles, how many £ are in 864 rubles?

Answer:

\(( - 0.5 , - 4.5 )\)

Step-by-step explanation:

Rewrite the equation in vertex form.

Complete the square for

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

Use the form

\(a {x}^{2} + bx + c\)

to find the values of a, b, and c.

a = 2

b = 2

c = −4

Consider the vertex form of a parabola.

\(a(x + d) ^{2} + e\)

Find the value of d using the formula

\(d = \frac{b}{2a} \)

\(d = \frac{1}{2} \)

Find the value of e using the formula

\(e = c - \frac{ {b}^{2} }{4a} \)

\(e = - \frac{9}{2} \)

Substitute the values of a, d, and e into the vertex form

\(2(x + \frac{1}{2} ) ^{2} - \frac{9}{2} \)

Set y equal to the new right side.

\(y = {2(x + \frac{1}{2}) }^{2} - \frac{9}{2} \)

Use the vertex form, 

\(y = a(x - h) ^{2} + k\)

to determine the values of a, h, and k.

a = 2

h = -1/2

k = -9/2

Find the vertex (h,k).

\(( - \frac{1}{2} , - \frac{9}{2} )\)

The surface area of a right circular cone is computed as follows:

where r is the radius and s is the slant height of the cone.

Substituting with r = 3 mm and s = 4 mm, we get:

Answer:

f(g(4)) = -10

(g o f)(-4) = -16

Step-by-step explanation:

Function composition is an operation where one or more functions are substituted into another function.

Given functions:

\(\begin{cases}f(x)=x^2+6x-2\\g(x)=x-6\end{cases}\)

The given composite function f(g(4)) means to substitute the function g(4) in place of the x in function f(x). The function g(4) is the value of function g(x) when x = 4.

\(\begin{aligned}f\left(g(4)\right)&=\left(g(4)\right)^2+6\left(g(4)\right)-2\\&=\left(4-6\right)^2+6\left(4-6\right)-2\\&=\left(-2\right)^2+6\left(-2\right)-2\\&=4-12-2\\&=-8-2\\&=-10\end{aligned}\)

The given composite function (g o f)(-4) means to substitute the function f(x) in place of the x in function g(x), then substitute x = -4 into the resulting function.

\(\begin{aligned}\left(g \circ f \right)(-4)&=g\left(f(-4)\right)\\&=\left(f(-4)\right)-6\\&=((-4)^2+6(-4)-2)-6\\&=(16-24-2)-6\\&=-10-6\\&=-16\end{aligned}\)

Answer:

I'm pretty sure it's 12) ( f * g) (x)

Step-by-step explanation:

Let me know if that's wrong and I'll do my best to fix it!

Answer:

The three numbers are 19, 18, and 31.

Step-by-step explanation:

The three numbers are x, y, and z.

y=x-1

z=2y-5

z=x+12

2y-5=x+12

2(x-1)-5=x+12

2x-2-5=x+12

x=19

y=18

z=31

The three numbers are 19, 18 and 31

Algebra is the branch of mathematics that helps in the representation of problems or situations in the form of mathematical expressions.

let the three numbers be x, y, and z.

So, according to question

The second of three numbers is one less than the first,

y = x-1

The third number is 5 less than twice the second,

z=2y-5

also, If the third number exceeds the first number by

12z=x+12

Now, equating the equations

2y-5=x+12

2(x-1)-5=x+12

2x-2-5=x+12

x=19

So, y=18 and z=31.

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A permit is a legal document that enables a person or a business to utilize a specific area for a project or other activity.

To obtain permission to use a specific location for a project, you may need to submit a request in writing or fill out a permission form. The exact document that you need to obtain permission will depend on the specific location and the requirements of the owner or manager of the location.

You may also need to provide information about your project, including the purpose, duration, and any potential impact on the location. Depending on the location and the nature of your project, you may also need to obtain other approvals or permits, such as building permits or environmental permits.

It is a good idea to research the requirements for using the specific location that you are interested in and to contact the appropriate authorities or individuals to find out what documents you need to obtain permission.

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Answer: 1.7 is the answer hope this helps.

Step-by-step explanation:

Answer: Solve using proportions

Step-by-step explanation:solve for x:

1/500=x/828

Answer:

How to find the area?

Step-by-step explanation:

Will this work?

hope it will

thanks!

Answer:

19.5 pounds

Step-by-step explanation:

25% of 26 equals 6.5, so 26-6.5 is 19.5 pounds

9514 1404 393

Answer:

  2.43 m

Step-by-step explanation:

The wavelength is the distance between crests, given as 2.43 m.

E. None of the above

You will go to jail and you don't want that right? Right. So listen to the officer. Then when the time is right, break those handcuffs, push the cops on to the ground and run to the hills where no one will find you ever again.

Answer:

No the rate of dollars per lawn is not constant

PLEASE MARK ME AS BRAINLYEST

Step-by-step explanation:

The median number of newspapers sold over seven weeks is 223.

The median is the middle score for a data set arranged in order of magnitude. The median is less affected by outliers and skewed data.

The formula for the median is as follows:

Find the median number of newspapers sold. (87, 87, 215, 154, 288, 235, 231)

We'll first arrange the data in ascending order.87, 87, 154, 215, 231, 235, 288

The median is the middle term or the average of the middle two terms. The middle two terms are 215 and 231.

Median = (215 + 231)/2

= 446/2

= 223

In statistics, the median measures the central tendency of a set of data. The median of a set of data is the middle score of that set. The value separates the upper 50% from the lower 50%.

Hence, the median number of newspapers sold over seven weeks is 223.

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\(\qquad \qquad \textit{combined proportional variation} \\\\ \begin{array}{llll} \textit{\underline{y} varies directly with \underline{x}}\\ \textit{and inversely with }\underline{z^5} \end{array} ~\hspace{6em} \stackrel{\textit{constant of variation}}{y=\cfrac{\stackrel{\downarrow }{k}x}{z^5}~\hfill } \\\\[-0.35em] ~\dotfill\)

\(\begin{array}{llll} \textit{"d" varies directly}\\ \textit{with "f" and}\\ \textit{inversely with "g"} \end{array}\qquad d=\cfrac{kf}{g}\hspace{5em}\textit{we also know that} \begin{cases} g=12\\ d=9\\ f=3 \end{cases} \\\\\\ 9=\cfrac{k(3)}{12}\implies \cfrac{12}{3}\cdot 9=k\implies 36=k\hspace{9em} \boxed{d=\cfrac{36f}{g}} \\\\\\ \textit{when d=6 and f=-7, what's "g"?}\qquad 6=\cfrac{36(-7)}{g} \\\\\\ g=\cfrac{36(-7)}{6}\implies g=-42\)

The answer is 23v

steps-

remove the parentheses

2x7v+9v

multiply the number

2x7=14+19v

add them

14v+19v=23v

STEP - BY - STEP EXPLANATION

What to find?

The z- score of 72

Given:

mean (μ) = 65

standard deviation (σ) = 13

x = 72

Step 1

Recall the z- score formula.

Step 2

Substitute the values into the formula and simplify.

ANSWER

0.54

The expressions are given as;

1. The factored form of g(x) is g(x) = 1/(x-6)

2. The LCD of g(x) and h(x) is (x-6)(x+8)

3. The LCD of h() and p(x) is (x-6)(8x + 32)

Functions are simply defined as laws, equations or rules showing the relationship between two variables.

These variables are termed;

From the information given, we have that;

g(x) = (x + 8)/x² + 2x - 48

Factorize the denominator of the function;

x²+ 8x - 6x - 48

group in pairs

x(x + 8) - 6(x + 8)

Then,

g(x) = x + 8/(x-6)(x+ 8)

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

The lowest common denominator of the functions g(x) and h(x) is;

g(x) = x + 8/(x-6)(x+ 8)

h(x) = 6x - 36/x-6

LCD = (x-6)(x+8)

The LCD of h(x) and p(x) is given as;

p(x) = x² - x - 20/8x + 32

= (x-6)(8x + 32)

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The weight loss program is not statistically significant because the results are likely to occur by chance. (Option D)

Now,

Hence, the given program is not statistically significant because the results are likely to occur by chance. (Option D)

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(COMPLETE QUESTION:

Determine whether the results below appear to have statistical​ significance, and also determine whether the results have practical significance.

In a study of a weight loss​ program, 7 subjects lost an average of 43 lbs. It is found that there is about a 22​% chance of getting such results with a diet that has no effect.

Does the weight loss program have statistical​ significance?

A.No, the program is not statistically significant because the results are unlikely to occur by chance.

B.Yes, the program is statistically significant because the results are unlikely to occur by chance.

C.Yes, the program is statistically significant because the results are likely to occur by chance.

D.No, the program is not statistically significant because the results are likely to occur by chance.)

Answer:

Check the internet first, then if there is nothing wrong check the imaging software.

Step-by-step explanation:

Answer:

To find the sum of all the numbers in the list, we can add each number together:

-45 + -21 + -16 + 12 + 33 + 40 = 59

So the sum of all the numbers in the list is 59.

Answer:

youngest   17  

middle  19

oldest    21

Step-by-step explanation:

Three sisters have ages that are consecutive odd integers

youngest = x

middle = x + 2

oldest = x + 4

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

The sum of the age of the youngest

x

and three times the age of the oldest

+ 3(x + 4)

is five less than five times the middle sister’s age

= 5(x + 2) - 5

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

x + 3(x + 4) = 5(x + 2) - 5

Distribute

x + 3x + 12 = 5x + 10 - 5

Combine like terms

4x + 12 = 5x - 5

Subtract 4x from both sides

12 = x - 5

Add 5 to both sides

17 = x

youngest   x = 17  

middle     x + 2 = 19

oldest     x + 4 = 21

Answer:

(2,3,4)

First you take the exponent and times 2 by two then you get four then you subtract the 4 from the 1 and you get three then group thennumbers that gotten used

A be a square matrix. It is used in the dynamic system In this origin is an attractor.

To determine the nature of the origin in the dynamic system defined by the matrix A, we need to analyze the eigenvalues of A.

Given that the eigenvalues of A are λ₁ = 1.02, λ₂ = 0.2 + 0.51i, and λ₃ = 0.2 - 0.51i, we can classify the origin based on the eigenvalues.

If all eigenvalues have magnitude less than 1, the origin is considered an attractor. If all eigenvalues have magnitude greater than 1, the origin is classified as a repellor. If at least one eigenvalue has magnitude equal to 1, the nature of the origin cannot be determined.

In this case, the eigenvalues λ₂ and λ₃ have magnitudes less than 1 (0.61 and 0.61, respectively), while λ₁ has a magnitude greater than 1 (1.02). Therefore, we can conclude that the origin is an attractor in this dynamic system.

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Answer:

D, X^2 -18 + 81 = -45 + 81

Step-by-step explanation:

it is complating squer method that used for solving x in a quadratic equetion . in this step you will add

(y/2)^2 if y is the cofitient of x .

Answer:

15

Step-by-step explanation:

Answer:

you can give the other person brainiest

Step-by-step explanation:

Answer:

9.73

explanation:

9.725 = 9.73 rounded to nearest 2 decimal places.

two decimal places should be in two decimals example: 2.63, 8.14

Answer:

\(\huge\boxed{\sf{9.73}}\)

Step-by-step explanation:

Hello.

Remember the Rounding Rules:

If the number you are rounding is followed by a number less than 5, you round down.

If the number you are rounding is followed by a number greater than or equal to 5, you round up.

Let's check our number.

9.725

We have 3 decimal places, and we need to round to 2.

The 2nd decimal place is followed by 5, therefore, we round up:

9.725 => 9.73

And we're done!

I hope it helps & have an outstanding day!

\(\boxed{imperturbability}\)

Step-by-step explanation:

Which expression is equivalent to 5y - 3x + 2? i just wsnted poit

Answer:

-3x + 5y + 2.

Step-by-step explanation:

its correct

The general convention is to reject a hypothesis if your data analysis indicates that there is a probability that a hypothesis is incorrect. This is False.

Probability is the occurence of likely events. It is the area of mathematics that deals with numerical estimates of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1.

After a performing a test, scientists can reject the null hypothesis meaning there is a definite, consequential relationship between the two phenomena

In this case, the convention is to accept a hypothesis if your data analysis indicates that there is a probability that a hypothesis is incorrect.

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a)The radius of convergence is R = |-2 - (-πi)| = |-2 + πi| = √(2^2 + π^2) ≈ 3.146.b)The radius of convergence is R = |1 + i - i| = |1| = 1. c)The radius of convergence is R = |1 + i - i| = |1| = 1.

The radius of convergence of a Taylor series centered at a point z0 is the distance from z0 to the nearest singularity of the function.

(a) The function sinz/e^z has singularities at z = kπi for any integer k, and the nearest singularity to z0 = -2 is at z = -πi. Therefore, the radius of convergence is R = |-2 - (-πi)| = |-2 + πi| = √(2^2 + π^2) ≈ 3.146.

(b) The function 1/cosz' has singularities at z = (k + 1/2)π for any integer k, which are equidistant from z0 = 0. Therefore, the radius of convergence is R = π/2.

(c) The function z^2+1/(z−i) has a singularity at z = i, which is the nearest singularity to z0 = 1 + i. Therefore, the radius of convergence is R = |1 + i - i| = |1| = 1.

Note that these radii of convergence only guarantee convergence within the radius; the series may converge or diverge at the boundary.

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