PLEASE HELP ME

given m||n, fine the value of x.

(X+12)° (4x-7)°

Answer:

It is C, 66.67%

Step-by-step explanation:

Answer:

43

Step-by-step explanation:

800 × 8% × (8/12)

After 10 days, the first flower will be 141mm tall, and the second flower will be 72mm tall.

What are the linear equations in two variables?

A linear equation in two variables is an equation that can be written in the form y = mx + b, where m and b are constants and x and y are variables.

In this case, we have two linear equations in two variables, y = 12.2x + 19 and y = 5.3x + 19, which model the heights y of the two flowers, in millimeters, after x days.

The y-intercept of each equation represents the initial height of the flower when it was planted, which is 19mm for both flowers. This is because when x = 0 (i.e. at the time of planting), the equation reduces to y = mx + b = m(0) + b = b.

To determine if the flowers will ever be the same height, we need to solve the system of equations y = 12.2x + 19 and y = 5.3x + 19 simultaneously. We can do this by setting the right-hand sides of the two equations equal to each other:

12.2x + 19 = 5.3x + 19

Subtracting 5.3x from both sides, we get:

6.9x = 0

Dividing both sides by 6.9, we get:

x = 0

This means that the flowers will be at the same height after 0 days, or in other words, at the time they were planted. After that, their heights will diverge.

The y-intercept of each equation represents the height of the flower when it was planted.

To find the height of each flower after 10 days, we can substitute x = 10 into each equation:

For the first flower, we have:

y = 12.2x + 19 = 12.2(10) + 19 = 141 mm

For the second flower, we have:

y = 5.3x + 19 = 5.3(10) + 19 = 72 mm

Therefore, after 10 days, the first flower will be 141mm tall, and the second flower will be 72mm tall.

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Bristol's next minimum monthly payment is $171.97

How was the minimum monthly payment of $146.52 computed?

The minimum monthly payment of $146.52 was computed from the current statement balance as 3.5% of $4,186.19

minimum monthly payment=$4,186.19*3.5%

minimum monthly payment=$146.52

The balance at the beginning next month is current statement balance minus the minimum monthly payment plus purchases of $750.00 and the interest for the month

beginning balance next month before interest=($4,186.19-$146.52)+ $750.00

beginning balance next month before interest=$4,789.67

beginning balance next month after interest=$4,789.67*(1+30.99%/12)

beginning balance next month after interest=$4,913.36

Bristol's next minimum monthly payment=3.5%*$4,913.36

Bristol's next minimum monthly payment=$ 171.97

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The number of trees more than 10m tall but not more than 20m tall is 18 trees.

0 < h ≤ 5 = 5

height greater than 0m less than or equal to 5m

5 < h ≤ 10 = 9

height greater than 5m less than or equal to 10m

10 < h ≤ 15 = 13

height greater than 10m less than or equal to 15m

15 < h ≤ 20 = 5

height greater than 15m less than or equal to 20m

20 < h ≤ 25 = 1

height greater than 20m less than or equal to 25m

The number of trees that are more than 10m tall but not more than 20m tall are;

10 < h ≤ 15 = 13

15 < h ≤ 20 = 5

So,

13 + 5 = 18 trees

Therefore, the total number of trees which are 10m tall but not more than 20m tall is 18 trees.

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Spherical harmonics are an integral part of quantum mechanics. They describe the shape of the orbitals, which electrons occupy in atoms. Moreover, the spherical harmonics provide the angular distribution of a wave in spherical coordinates. In 3D, the spherical harmonics can be written as:

Ylm(θ, φ) = √(2l + 1)/(4π) * √[(l - m)!/(l + m)!] * Plm(cosθ) * e^(imφ)

Here, l and m are known as the angular quantum numbers. They define the shape and orientation of the orbital. Plm(cosθ) represents the associated Legendre polynomial, and e^(imφ) is the exponential function. The spherical harmonics have various forms, including:

Y1,1 = -Y1,-1 = 1/2 √(3/2π) sinθe^(iφ)

Y1,0 = 1/2 √(3/π)cosθ

Y2,2 = 1/4 √(15/2π)sin²θe^(2iφ)

Y2,1 = -Y2,-1 = 1/2 √(15/2π)sinθcosφ

Y2,0 = 1/4 √(5/π)(3cos²θ-1)

Y0,0 = 1/√(4π)

The spherical harmonics have various applications in physics, including quantum mechanics, electrodynamics, and acoustics. They play a crucial role in understanding the symmetry of various systems. Hence, the spherical harmonics are an essential mathematical tool in modern physics. Thus, this is how one can show another form for spherical harmonics.

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No, f(x, y) = 3x - 3y^2 is not a harmonic function.

A harmonic function is a twice continuously differentiable function f(x, y) that satisfies the Laplace equation:
                                                                            ∂²f/∂x² + ∂²f/∂y² = 0.

Let's check if f(x, y) = 3x - 3y^2 satisfies the Laplace equation:
∂²f/∂x² = ∂/∂x(3) = 0
∂²f/∂y² = ∂/∂y(-6y) = -6
∂²f/∂x² + ∂²f/∂y² = 0 + (-6) = -6 ≠ 0

Since the Laplace equation is not satisfied, f(x, y) = 3x - 3y^2 is not a harmonic function.

As for finding a corresponding analytic function, an analytic function is a function that is locally given by a convergent power series. Since f(x, y) is not a harmonic function, there is no corresponding analytic function.

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Answer:

For question 3b the answer is no because the common difference is 4

Step-by-step explanation:

6,10,14,18,22,26,30,34

It will be 34 not 33

Answer:

36

Step-by-step explanation:

just divided 9 by 1/4 I think I may be wrong.

The value of x in the algebraic equation 7 / 2x - 2 / x + 1 = 1 / 4  is 7 and -2

let's find the value of x in the algebraic equation.

7 / 2x - 2 / x + 1 = 1 / 4

Therefore, let's solve the left side.

7 / 2x - 2 / x + 1  = 7(x + 1) - 4x / 2x(x + 1) = 7x + 7 - 4x / 2x² + 2x = 3x + 7 / 2x² + 2x

3x + 7 / 2x² + 2x  = 1 / 4

cross multiply

4(3x + 7) = 2x² + 2x

12x + 28 = 2x² + 2x

2x² + 2x  - 12x - 28 = 0

2x² - 10x  - 28 = 0

x² - 5x - 14 = 0

Therefore,

(x + 2)(x - 7)

hence,

x = -2 or x = 7

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Answer:

a=2

b=1

Step-by-step explanation:

5a-5b=5

a+b=3

-a     -a

b=3-a

5a-5(3-a)=5

5a-5(3)-5(-a)=5

5a-15+5a=5

10a-15=5

10a=20

a=2

2+b=3

b=1

5(2)-5b=5

10-5b=5

-5b=-5

b=1

Answer:

a = 2

b = 1

Step-by-step explanation:

5a - 5b = 5

a + b = 3

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

5(a + b = 3)

= 5a + 5b = 15

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

5a - 5b = 5

5a + 5b = 15

10a = 20

÷10    ÷10

a = 2

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

a + b = 3

2 + b = 3

-2        -2

b = 1

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

I hope this helps!

Answer: Y = 2/3x - 14/3

Answer:

2/3

Step-by-step explanation:

y+2=2/3 (x-4)

1. multiply parentheses (y+2=2/3x-8/3

2. subtract 2 from both sides (y=2/3x-2/3

3. 2/3x is the slope

Answer:

\( \frac{ {x}^{7} + 2x - 64 }{x} \)

Step-by-step explanation:

\( {x}^{6} - 64 \div x + 2\)

➡️ \( {x}^{6} - \frac{64}{x} + 2\)

➡️ \( \frac{ {x}^{7} - 64 + 2x }{x} \)

➡️ \( \frac{ {x}^{7} + 2x - 64 }{x} \)

Answer:

Answer: c

Step-by-step explanation:

A. ❎

\(16 +( 4 \times {5}^{2} ) \\ = 16 + 100 \\ = 116\)

B. ❎

\(16 +( 4 \times {5}^{2} ) \\ = 16 \times 100\\ = 116\)

C. ✔

\(16 + (4 \times {5}^{2} ) \\ = 16 \times 100\\ = 116\)

D. ❎

\(16 + (4 \times {5}^{2} ) \\ = 16 + (4 \times 25) \\ = 16 + 100 \\ = 116\)

Answer:

Step-by-step explanation:

The hypotheses for the test are H₀: σ₁² = σ₂² and H₁: σ₁² ≠ σ₂². This is a two-tailed test to assess if there is a difference in the standard deviations of sound levels between the areas designated as "casualty doors" and operating theaters. The claim being investigated is whether or not there is a difference in the standard deviations.

The hypotheses for the test are:

H₀: σ₁² = σ₂² (There is no difference in the standard deviations of the sound levels between the areas designated as "casualty doors" and operating theaters.)

H₁: σ₁² ≠ σ₂² (There is a difference in the standard deviations of the sound levels between the areas designated as "casualty doors" and operating theaters.)

This hypothesis test is a two-tailed test because the alternative hypothesis is not specifying a direction of difference.

To substantiate the claim that there is a difference in the standard deviations, we will conduct a two-sample F-test at a significance level of 0.10, comparing the variances of the two groups.

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Answer:

Given that she spends 25% more on furniture than on flooring, we multiply the flooring cost by 125% to get the furniture costs:

Hence, she spends $893.59 on furniture.                hope it helps man

Step-by-step explanation:

Answer:

0.15

Step-by-step explanation:

Answer:

The answer is 0.65

Step-by-step explanation:

I hope I helped :)

Answer:

The equation of the line is y = 35x - 45.

Step-by-step explanation:

When you have two points, you can use the point-slope form.

(y - y1) = m(x - x1)

To find the slope, you use the slope formula: y2-y1/x2-x1.

In this case, it would be 1 - (-2)/3 - (-2), which is 3/5.

Now just plug the values in, and you get y - (-2) = 3/5(x - (-2) which is also written as y + 2 = 3/5(x + 2).

If you want it in slope-intercept form, then you solve the equation for y, and then you get 35x - 45.

Hope this helps!

Please give brainliest(I NEED IT SO BAD)

Answer:

2/3

Step-by-step explanation:

12/6=2

18/6=3

so

the fraction is 2/3

i think this is what your teachers means, lmk if thats wrong

Answer:

oi 5. 16

Step-by-step explanation:

Answer:

5. 6a^2 + 10a

6. 21h^2 - 9h

Step-by-step explanation:

(2a*3a) + (2a*5) = 6a^2 + 10a

(-3h)*(-7h) + (-3h)*3 = 21h^2 - 9h

Solution:

Consider the following diagram of the rectangular field:

The perimeter P of a polygon is the sum of its sides, thus we can express the perimeter of the given rectangular field as:

where P = 312 yards, L = 83 yards, and L is unknown. Then, replacing the given data into the previous equation, we get:

this is equivalent to:

solving for 2W, we get:

solving for W, we get:

we can conclude that the correct answer is:

The width of the rectangular field is 73 yards.

well, let's take a looksie, if it decreased by 50% the 1st year, that means what's leftover is 50% of it, well

\(\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{50\% of 10000}}{\left( \cfrac{50}{100} \right)10000}\implies 5000\)

so, on the next year it increases by 60% of 5000

\(\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{60\% of 5000}}{\left( \cfrac{60}{100} \right)5000}\implies 3000~\hfill \underset{current~value}{\stackrel{5000~~ + ~~3000}{8000}}\)

well, 10% of 10000 is 1000 bucks, if the consultant is correct, I should have 10000 + 1000 = 11000, but I don't, so he needs a nice cup of tea and chill some.

well, I started with 10000 bucks, now I only have 8000, lost 2000 bucks, 2000 is 1/5 of 10000 or namely 20%.

Answer:72 are boys.

Step-by-step explanation:

40%of 180 is 72.

Answer:

72 boys

Step-by-step explanation:

I got this right in a test hope this helps!!!

(2x + 29) + 91 = 180.

This is because they add to form a straight line which is 180 degrees, in other words the angles are supplementary.

2x + 29 = 89 (Subtract 91 from each side)

2x = 60 (Subtract 29 from each side)

x = 30 (Divide 2 from each side)

x = 30

The answer is B

With the help of complete square we find the vertex form of the given equation is y  = (x - 6)² - 1

What is Vertex form?

The vertex form of a parabola is: y = a(x - h)² + k

Here, a, h and k are real numbers, where a ≠ 0. x and y are variables where (x, y) represents a point on the parabola.

In the vertex form, y = a(x - h)² + k, there is a "whole square". So to convert the standard form to vertex form, we need to complete the square.

The standard form of a parabola is: y = ax² + bx + c

Here, a, b, and c are real numbers where a ≠ 0.

Find h using h = -b/2a

Since (h, k) lies on the given parabola, k = ah² + bh + c. Just use this to find k by substituting the value of 'h' from the above step.

Given:

y = -7x² + 84x - 251

First divide the equation by -7, we get,

y = x² - 12x + 35

x² - 12x + 35 = 0

Subtract 35 from both the sides,

x² - 12x + 35 - 35 = -35

x² - 12x = -35

Take the coefficient of x, which is 12, divide by two, giving 6, and finally square it giving 36.

Add 36 to both sides,

x² - 12x + 36 = -35 + 36

x² - 12x + 36 = 1

(x - 6)² = 1

y = (x - 6)² - 1

So, this is required vertex form of the given equation.

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Answer:

not the answer:

you can do it think and stay positive

Answer: 49.7

Step-by-step explanation:

7  X 71  =   497   =   49.7

10                  10