can you help me?? you can just read the picture i took in the bottom

Answer:

\(4 \cot {}^{2} (45) - 3 \tan {}^{2} (60) + 2 \sec {}^{2} (60) = 3 \\ \)

\(LHS = 4 \cot {}^{2} (45) - 3 \tan {}^{2} (60) + 2 \sec {}^{2} (60) \\\)

let us first take a look at the values of the trigonometric ratios given in the question so that we get quite clear about what is to be done.

here ,

\( \cot(45) = 1 \\ \\ \tan(60) = \sqrt{3} \\ \\ \sec(60) = 2\)

now ,

we just have to plug in the values considering certain other things given in the question and we're done!

so let's start ~

\(4(1) {}^{2} - 3( \sqrt{3} ) {}^{2} + 2(2) {}^{2} \\ \\ \dashrightarrow \: 4(1) - 3(3) + 2(4) \\ \\ \dashrightarrow \: 4 - 9 + 8 \\\\ \dashrightarrow \: 12 - 9 \\ \\\dashrightarrow \: 3 = RHS\)

hence , proved ~

hope helpful :D

The quotient in polynomial form is C. x² - x ₊ 1.

In algebra, synthetic division is a method for manually performing Euclidean division of polynomials, with less calculation than long division.

The given problem is-

-3 | 1  2  -2  3

Using synthetic division method,

-3 | 1  2  -2  3

   |   -3    3  3

   |1   -1    1  6

So, the remainder from the calculation is 6 .

And the quotient polynomial is x² - x ₊ 1.

Hence, the correct answer for the given question is C. x² - x ₊ 1

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Answer:

  (d)  24/49

Step-by-step explanation:

You want to know P(A|B) when P(AB) = 3/7 and P(B) = 7/8.

The general equation for conditional probability tells you ...

  P(A|B) = P(AB)/P(B)

  P(A|B) = (3/7)/(7/8) = (3/7)·(8/7)

  P(A|B) = 24/49

Money made during peak season = 1,800,000 * p

1. Expression for money made during peak season:

During peak season, the zoo has about 1,800,000 visitors. To calculate the money made during peak season, we multiply the number of visitors by the price of one peak season ticket (p):

Money made during peak season = 1,800,000 * p

2. Expression for money made during the off season:

The zoo wants to sell tickets in the off season for half the price of tickets in the peak season. Therefore, the price of one off season ticket would be p/2. To calculate the money made during the off season, we multiply the number of visitors by the price of one off season ticket:

Money made during the off season = 1,200,000 * (p/2) = 600,000 * p

3. Inequality for breaking even:

To break even, the zoo needs to make at least as much money as they spent on the animals. Let's represent the amount spent on animals as A. The money made during peak season plus the money made during the off season should be greater than or equal to the amount spent on animals:

1,800,000 * p + 600,000 * (p/2) ≥ A

Simplifying the inequality:

3,600,000p + 300,000p ≥ 2A

3,900,000p ≥ 2A

Solving for p:

p ≥ (2A) / 3,900,000

This determines the minimum price of one peak season ticket to break even.

The price of one off season ticket would be half the price of one peak season ticket, so the off season ticket should be (p/2).

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Step-by-step explanation:

I hope this answer is helpful ):

Answer:

2

Step-by-step explanation:

g/5 - h is equal to 20/5 - 2

equal to 20 divided by 5 is equal to 4(20÷5=4)

then 4minus h which is 4- 2 =2

therefore the answer is 2

I hope this helps you

Answer:

where is required question. comment me.

The Reflexive Property is a property of equality that states that anything is equal to itself. This property is true for numbers, shapes, angles, and more.

In the context of geometry, the Reflexive Property of Congruence states that any geometric figure is congruent to itself. This includes angles, segments, triangles, and other polygons.

So, when you see "<J ≅ <J", it's saying that angle J is congruent to angle J, which is an application of the Reflexive Property. In other words, any angle is congruent (equal in measure) to itself.

no 1) what is the square root of 2? it's about 1.5

no 2) pi is 3.14 blah blahblah so just put somewhere around 3

no 3) do square root of 11, it's about 3.3 so put it a tiny bit after no 2.

all of these will be after the 0, not before because theyre positive

hope this helps x

Answer:

  6 6/7

Step-by-step explanation:

You want the expected value of a spinner to be 3.5, when it has a 90° section valued at 4, a 60° section valued at -9, and the remaining section valued at x.

The expected value of the spinner is the sum of the section values, each multiplied by its probability. The 360° of the spinner have a probability of 1, so the probability of a section is its degree measure divided by 360°.

  expected value = 4(90/360) +(-9)(60/360) +x((360 -90 -60)/360)

  3.5 = 1 -3/2 +7x/12

  42 = -6 +7x . . . . . . . . . multiply by 12

  48 = 7x . . . . . . add 6

  x = 48/7 = 6 6/7

The value of x so the expected value of the spinner is 3.5 is 6 6/7.

__

Additional comment

The unfortunate line break in the problem statement means the problem is a bit ambiguous. We assume the desired expected value is 3.5. If it is 3, then the value of x needs to be 6. (If the expected value is 3, then we don't know the meaning of the "5." on the second line.)

When writing a proof, you should construct the first statement by copying the “prove” statement(s) from the original problem. The Option B is correct.

When constructing the first statement in a proof, it is important to begin with copying the “prove” statement(s) from the original problem. This involves writing the next statement based on the given or previously proven statements.

It is not helpful to write a justification for the first statement in the right column without considering its logical connection to the problem. By beginning with a logically connected statement, the proof can proceed in a clear and organized manner which leads to a valid conclusion.

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By answering the presented question, we may conclude that In decimal form, the answer is 0.15, which is close to option A, 0.148. As a result, the answer is A. 0.148.

According to Euclidean geometry, a square is an equilateral quadrilateral having four equal sides and four equal angles. It is often referred to as a rectangle with two nearby sides of equal length. A square is an equilateral quadrilateral because it has four equal sides and four equal angles. Square angles are 90-degree or straight angles. Also, the diagonals of the square are evenly spaced and divide at a 90-degree angle. an adjacent rectangle with two equal sides. a quadrilateral with four equal-length sides and four right angles. A parallelogram with two adjacent, equal sides forming a right angle. A rhombus with straight sides.

To determine the answer, multiply the areas of the shaded squares by the overall area of the figure.

Assuming that both squares are the same size, we may combine the fractions using a common denominator:

2/12 + 2/15 = 5/60 + 4/60 = 9/60 = 3/20

As a result, the entire shaded area is 3/20 of the total area of the diagram.

We can't discover the exact area of the graphic because it's not presented. As a result, we can only represent the answer in fractions or decimals.

In decimal form, the answer is 0.15, which is close to option A, 0.148. As a result, the answer is A. 0.148.

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Answer:

Brand A

Step-by-step explanation:

Brand A has a box of 25 forks for 1.99

Take the price per fork

1.99 /25 = .0796

              .08 per fork

Brand B has a box of 42 totals for 3.89

3.89 / 42

.092319048

.09 per fork

The location of the circumference of a circle is the set of points that are equidistant from a given point

Reason:

Given information;

The distance of Rosey from Billy = 10 feet

The distance of the rest of the class from Bill = 10 feet

Required:

The shape the positions of the class formed in relation to Billy

Solution;

The distance from Billy to each pupil in the class is equal, (10 feet), therefore, Billy is at a central position to the rest of the class

Therefore, the shape that the rest of the class form in relation to Billy is a figure that has Billy as the center or centroid

If the number of pupils in the class is sufficiently, large, the shape formed will be a circle, given that a circle is formed by the set of points that have equal distance from a particular points

Therefore, the shape formed by the rest of the class in relation to Billy is the shape of a circle

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Answer:

For the parallel line it will still have a slpoe of 2/3

Step-by-step explanation:

as for the perpendicular line it will be double like 4/6 so it can meet it at a 90° angle.

Answer:

a) \(a(t)=7e^{\frac{-t}{325} }\)

b) it is noticeable

Step-by-step explanation:

a) Let a(t) be the amount of die at time t. a is in kg and t is in minutes. Therefore:

\(\frac{da}{dt} =\frac{-a(t)}{65000}*\frac{200gal}{1 min}=\frac{-a}{325}\\\frac{da}{a} =\frac{-1}{325} dt\\\int\limits{\frac{1}{a} } \, da =\int\limits{\frac{-1}{325} } \, dt\\ln(a)=\frac{-1}{325} t+c\\a=ce^{\frac{-t}{325} }\\at\ t=0, a=7\\ 7=ce^0\\c=7\\a(t)=7e^{\frac{-t}{325} }\)

b) 4 hrs = (4 * 60) min = 240 min

\(a(t)=7e^{\frac{-t}{325} }\\a(240)=7e^\frac{-240}{325} = 3.345kg\)

3.345 kg = (3.345 * 1000 / 60000) g/gal = 0.0557 g/gal

0.0557 g/gal > 0.03 g/gal, therefore it is noticeable

The equivalent relationships of the function are 3x - 9 = 12 and 3x - 9 = -12

From the question, we have the following parameters that can be used in our computation:

|3x-9|-24=-12

The above equation is an absolute value function

So, we start by representing the equation properly

So, we have the following representation

|3x - 9| - 24= -12

Add 24 to all sides of the equation

|3x - 9| = 12

Remove the absolute bracket

So, we have

3x - 9 = 12 and 3x - 9 = -12

Add 9 to all sides of the equation

3x = 21 and 3x = -3

Divide through the equations by 3

x = 7 and x = -1

Hence, the representations are 3x - 9 = 12 and 3x - 9 = -12 and the solutions are  x = 7 and x = -1

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Complete Question

Evaluate the Fermi function for an energy kT above the Fermi energy. Find the temperature at which there is a 1% probability that a state, with an energy 0.5 eV above the Fermi energy, will be occupied by an electron.

Answer:

a

The Fermi function for the energy KT is  \(F(E_o) = 0.2689\)

b

The temperature is  \(T_k = 1261 \ K\)

Step-by-step explanation:

From the question we are told that

   The energy considered is  \(E = 0.5 eV\)

Generally the Fermi  function is mathematically represented as

       \(F(E_o) = \frac{1}{e^{\frac{[E_o - E_F]}{KT} } + 1 }\)

    Here K is the Boltzmann constant with value \(k = 1.380649 *10^{-23} J/K\)

            \(E_F\)  is the Fermi energy

            \(E_o\)  is the initial energy level which is mathematically represented as

     \(E_o = E_F + KT\)

So

     \(F(E_o) = \frac{1}{e^{\frac{[[E_F + KT] - E_F]}{KT} } + 1}\)

=>   \(F(E_o) = \frac{1}{e^{\frac{KT}{KT} } + 1}\)

=>   \(F(E_o) = \frac{1}{e^{ 1 } + 1}\)

=>   \(F(E_o) = 0.2689\)

Generally the probability that a state, with an energy 0.5 eV above the Fermi energy, will be occupied by an electron is mathematically represented by the  Fermi  function as

     \(F(E_k) = \frac{1}{e^{\frac{[E_k - E_F]}{KT_k} } + 1 } = 0.01\)

Here\(E_k\) is that energy level that is  0.5 ev above the Fermi energy  \(E_k = 0.5 eV + E_F\)

=>   \(F(E_k) = \frac{1}{e^{\frac{[[0.50 eV + E_F] - E_F]}{KT_k} } + 1 } = 0.01\)

=>   \(\frac{1}{e^{\frac{0.50 eV ]}{KT_k} } + 1 } = 0.01\)

=>   \(1 = 0.01 * e^{\frac{0.50 eV ]}{KT_k} } + 0.01\)

=>   \(0.99 = 0.01 * e^{\frac{0.50 eV ]}{KT_k} }\)

=>   \(e^{\frac{0.50 eV ]}{KT_k} } = 99\)

Taking natural  log of both sides

=>   \(\frac{0.50 eV }{KT_k} } =4.5951\)

=>    \(0.50 eV =4.5951 * K * T_k\)

Note eV is electron volt and the equivalence in Joule is     \(eV = 1.60 *10^{-19} \ J\)

So

     \(0.50 * 1.60 *10^{-19 } =4.5951 * 1.380649 *10^{-23} * T_k\)

=>   \(T_k = 1261 \ K\)

Answer:

Pedro Dropdown 1: they Do not Intersect, they Are the same line

Step-by-step explanation:

3y = 6x + 6

y = 2x + 2

3y-6x = 6... Equation one

y-2x = 2... Equation two

Dividing equation one by 3 gives

Y -2x = 2. Which is same thing with equation 2

So I think the two are same line and do not intersect.

Answer:

Pedro: are the same line, infinitely many

Amy: is

Matt: always, infinitely many

Step-by-step explanation:

PEDRO: Since the lines are on top of one another, there are infinitely many solutions. These lines are called coinciding lines.

AMY: 3y = 6x + 6 is a multiple of y = 2x + 2. When one equation is a multiple of the other, there are infinitely many solutions to the system.

MATT:  When the equation 3y = 6x + 6  is divided by 3, the quotient is equal to the first equation. The equations are equivalent, so they describe the same graphed line.

Answer:

2.5

Step-by-step explanation:

Answer:

5/2

Step-by-step explanation:

To divide fractions, you flip the second fractions and change it to multiplication.

(3/2) / (3/5) =

(3/2) x (5/3)

To multiply them, you just multiply their numerators together to get the new numerator and multiply the denominators together to get the new denominator.

(3/2) x (5/3) =

(3 x 5) / (2 x 3) =

15/6

This can be reduced to:

5/2

Answer:

g. 19/25

Step-by-step explanation:

19/25 = .76, or approximately .8 -- none of the other options come as close as option g.

Answer: the answer - 2/15

Step-by-step explanation: i took the test

The value of the expression [2- |-2/3 -2(-1/5)|] ÷ (-13) is -2/15

Numbers, symbols and operators grouped together that show the value of something.

Given that an expression [2- |-2/3 -2(-1/5)|] ÷ (-13)

[2- |-2/3 -2(-1/5)|] ÷ (-13)

= [2 - 4/15]/ (-13)

= 26/15*1/(-13)

= -2/15

Hence, The value of the expression [2- |-2/3 -2(-1/5)|] ÷ (-13) is -2/15

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Answer:

numbers dont do into math please move this to englash

Step-by-step explanation:

it posted Wong

Using my learning about filing income taxes to complete the following sentences is:

1) Citizens file income taxes to ensure that they will receive a refund if they paid too much in taxes throughout the year.

2) Employers supply a W-2 form to help citizens file their tax returns.

3) Taxes returns can be filed either by mail or online.

Income taxes are compulsory levies that governments make on the incomes and profits of employees, businesspersons, and entities within their jurisdictions.

Individuals use W-2 forms to file their tax returns.  The W-2 form shows an individual's total earnings and tax withholdings.

Thus, taxes returns by individuals and entities are filed either by mail or online (electronically).

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The  best measure of center for the data shown is the median, and its value is 17.

The median is the best measure of center for the given data set. To find the median, we arrange the numbers in ascending order:

10, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24

Since the data set has an odd number of values, the median is the middle value, which in this case is 17.

Therefore, the best measure of center for the data shown is the median, and its value is 17.

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The graph of the line y = 2x - 2 intersects the y-axis at the point (0, -2).

Given that we have the following equation

y = 2x - 2

The equation of a straight line in the standard form is y = mx + c, where m is the slope of the line, and c is the y-intercept. The y-intercept is the point at which the line intersects the y-axis.

The equation of the line is y = 2x - 2. To find where the line intersects the y-axis, we need to set x = 0 and solve for y.

So, when x = 0, we get:

y = 2(0) - 2

y = -2

Therefore, the line intersects the y-axis at the point (0, -2).

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Answer:

12x+4x-7y+45b+78a-44b+1a+1z+0d+1.1a+1.1a+2+2+2