(9-12)x5+13-2=
explanation please

Answer:

right angle

Step-by-step explanation:

Answer:

its 34

Step-by-step explanation:

Did it yesterday and got it right.

It illustrates a line equation in the XY plane whose equation is represented by x=y when x and y really aren't negative.

Using the equal symbol (=) to indicate equivalence, a mathematical equation is a formula that joins two statements. An equation in algebra is a statement of mathematics proving the equality of two mathematical equations. In the formula 3x + 5 = 14, for example, the equal sign places the variables 3x + 5 & 14 apart. The relationship between two words on either side of such a letter is described by a mathematical formula. A single variable, which also serves as the symbol, is frequently present. like in 2x - 4 Equals 2, for instance.

The line passing thru the origins and having an equal tangent is known as an equation of the form =. A line's equation is, in general, an equation with the formula = °.

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height = 14.5 ft and width = length = 3.2 ft  in a box with the largest possible volume

Let the side of the square base is a and the height of the box is h.

The material required to make the box is equal to the total surface area of the box.

Area of base = a²

Cost of square base is $ 2 per ft²

So, the cost of making base = 2a²

Area of four walls + area of top = 2 (a² + ah + ah) + a² =  3a² + 2ah

Cost of making walls and the top is $ 1 per ft²

So, the cost of making walls and the top = 1 x ( 3a² + 2ah)

Total cost of making the box = 2a² + 3a² + 2ah = 5a² + 2ah

According to the question

144 = 5a² + 2ah

    .... (1)

The volume of the box is V = length x width x height

V = a x a x h

V = 72 a - 2.5 a³     from equation (1)

Differentiate both sides with respect to a.

dV/da = 72 - 7.5 a²

Put, it equal to zero for maxima and minima

7.5 a² = 72

a = 3.2 ft

Put in equation (1)

h = 14.5 ft

So, the dimensions of the box are

height = 14.5 ft

width = length = 3.2 ft

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Answer:

can see the y = x + 2 line, and the shaded area is where y is less than or equal to x + 2

Linear Inequality

A Linear Inequality is like a Linear Equation (such as y = 2x+1) ...

... but it will have an Inequality like <, >, ≤, or ≥ instead of an =.

Answer: 20 liters

Step-by-step explanation:

Let the number of liters of 15% alcohol solution be [tex]x[/tex].

[tex]0.15x+30(0.4)=0.3(x+30)\\\\0.15x+12=0.3x+9\\\\12=0.15x+9\\\\0.15x=3\\\\x=20[/tex]

The value of c in the quadratic = 1.

From this equation, we can easily see that for this equation to have one possible answer, this equation must be a perfect square trinomial, which results from an equation of the form [tex](x+1)^{2}[/tex].

We also know that [tex]b+\frac{1}{b}[/tex]  is equal to the sum of the roots (since the coefficient of [tex]x^{2} = 1[/tex]) and the product of the roots = c.

We easily know that in a quadratic [tex]ax^{2} +dx+c=0[/tex], if this quadratic is a square, then [tex]\frac{d}{c} = \frac{2\sqrt{c} }{c}[/tex]

[tex]2\sqrt{c} = b + \frac{1}{b}[/tex]

We know that c is a perfect square, so that means [tex]b+\frac{1}{b}[/tex] has to have an integer value, and the only way this is possible is if b = 1.

Therefore, if b = 1,

[tex]2\sqrt{c} = b + \frac{1}{b}\\\sqrt{c} = 1\\c = 1[/tex]

Therefore, the value of c in the quadratic = 1.

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According to the given information the supplementary angle are 132 and 48.

Two angles are referred to as supplementary angles because they combine to generate a linear angle when their total is 180 degrees. When two angles add up to 90 degrees, however, they are considered to be complimentary angles and together they make a right angle.

If the total of two angles is 90 degrees or greater, they are complementary; if the sum is 180 degrees or greater, they are supplementary. Given that they are in the same ratio, we will call one angle 11x whilst the other is 4x.

They add up to [tex]11x+4x=15x={180}^\circ\rightarrow x=12[/tex]

So one angle is [tex]11\cdot12={132}^\circ[/tex]

And the other is [tex]4\cdot12={48}^\circ[/tex]

Check: [tex]132+48=180[/tex]

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Variables are the name for the unknown.You must isolate the variable in order to get a solution for it (such as x).

Unknown value.Variables are the name for the unknown.You must isolate the variable in order to get a solution for it (such as x).

The variable can be separated from the equation by performing inverse operations.Adding and multiplying are the opposites of subtracting and dividing, respectively.

Starting with the proportion:

12/? = 4/3

Since it should be equal to 4/3, notice that if we divide both numerator and denominator by 3, then we should get 4 and 3 respectively:

Therefore, ?÷3 is equal to 3.

Which number is equal to 3 when we divide it by 3?

That number is 9. 9÷3=3

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3 hours, but must submit the exam no later than the closing time.

The browser displays a notification banner for tests that have a due date to inform students when the test will be marked as incomplete (30 minutes prior, 5 minutes prior, and 1 minute prior).

The browser displays a notification banner for quizzes that are about to auto-submit (using an Until date or the natural course finish date) to inform students of this (30 minutes prior, 5 minutes prior, 1 minute prior, and 10 seconds prior).3 hours, but must submit the exam no later than the closing time.

If students are unable to finish a timed quiz in the full permitted time, the browser will display a notification banner.

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By applying independent and disjoint events theory, it can be concluded that A and B are neither disjoint nor independent (option D).

In probability, based on the occurrences, there are two types of events: independent and disjoint events.

Now we observe the data given:

p(a) = 0.3

p(b) = 0.2

p(a and b) = 0.4.

First, we check the independence. Here p(a and b) = 0.4. Whereas, if a and b are independent events, then:

p(a and b) = p(a) * p(b)

                = 0.3 * 0.2

                = 0.06

Since the value is different, we can conclude that events A and B are not independent.

Second, we check whether these events are disjoint events. Since the value of p(a and b) is not 0, these events are disjoint events.

Therefore, we can conclude that a and b are neither disjoint nor independent (option D)

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The dimensions that will admit the most light are, the breadth of the rectangular window is  [tex]2b = \frac{20+10\pi }{4+3\pi }[/tex], the length of the window is [tex]2l = \frac{40}{4+3\pi }[/tex] and the radius of the semicircular arc is  [tex]l= \frac{20}{4+3\pi }[/tex].

In the given question,

Let the length and breadth of the rectangular part of the window be 2l and 2b respectively. So the radius of the semicircular arc will be l.

The total perimeter of the window will be 1 length of the rectangle, 2 breadths of the rectangle, and the length of the semicircular arc.

l+2b+πl = 10

(1+π)l+2b = 10

[tex]b = \frac{1}{2} [10-(1+\pi )l][/tex]

To admit maximum light through the window implies that the area of the window is maximized.

The area of the window will be:

[tex]A = (2l)(2b)+\frac{\pi l^{2} }{2}[/tex]

[tex]= 4lb+\frac{\pi l^{2} }{2} \\= 2l[10-(1+\pi )l] +\frac{1}{2} \pi l^{2}[/tex]

[tex]= 20l-2l^{2} -2\pi l^{2} +\frac{1}{2} \pi l^{2}[/tex]

[tex]= 20l-2l^{2} - \frac{3}{2} \pi l^{2}[/tex]

For the area to be maximum,

[tex]\frac{dA}{dl} =0\\20 -4l -3\pi l = 0\\l= \frac{20}{4+3\pi }[/tex]

[tex]b = \frac{1}{2} [10-(1+\pi )\frac{20}{4+3\pi }\\b = \frac{10+5\pi }{4+3\pi }[/tex]

Therefore, the breadth of the rectangular window is [tex]2b = \frac{20+10\pi }{4+3\pi }[/tex], the length of the window is [tex]2l = \frac{40}{4+3\pi }[/tex] and the radius of the semicircular arc is [tex]l= \frac{20}{4+3\pi }[/tex].

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On solving the provided question, we can say that random sample the conditions for interference are met.

selected at random (purely random, unpredictable). Every member of the population being polled ought to have an equal probability of getting chosen. She randomly selected 25 names from a pool of 250 employees as an example of a simple random sample. Since there are 250 of her employees in total, and each one has an equal probability of being chosen, the sample in this instance is random. Using simple random sampling, which is a form of probability sampling, researchers choose individuals at random from a population. There is an equal opportunity for selection for every person in the population.

Yes, the conditions for interference are met.

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Answer (vertex form): y=4(x+2)^2 - 11

Answer (standard form): y=4x^2 + 16x + 5

There are six characteristics of an absolute value graph.

An absolute value function is a function of the form f(x) = |x|. The graph of an absolute value function has the following characteristics:

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Hope it helps.

If you have any query, feel free to ask.

Answer: -3.5 is the reciprocal

Answer:

= 7/-2

= -7/2

Step-by-step explanation:

The reciprocal number results from dividing the number 1 ny the original number, in this case:

original number = -2/7

reciprocal  number = 1 / (-2/7) = (1*7)/-2 = 7/-2 = -7/2

3/8 is already in its simplest form as a fraction. The numerator, 3, and denominator, 8, have no common factors other than 1. To simplify a fraction to its simplest form, you divide both the numerator and denominator by their greatest common factor (GCF). In this case, the GCF of 3 and 8 is 1, so there's no need to simplify further. Therefore 3/8 is already in its simplest form.

Answer:

3/8 is already in its simplest for as both numerator n denominator does not have any common factor

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other

What is an equivalent ratios?

A ratio compares two quantities named as antecedent and consequent, by the means of division. For example, when we cook food, then each ingredient has to be added in a ratio. Thus, we can say, a ratio is used to express one quantity as a fraction of another quantity.

Two ratios are equivalent to each other if one of them can be expressed as the multiple of the other. Hence, to get the equivalent ratio of another ratio, we have to multiply the two quantities (antecedent and consequent) by the same number.

Given ratios are 2:1 and 3:1

we can write it as 2/1 and 3/1.

The lcm of 2 and 3 is 6.

Multiply denominator of both ratio with 6, we get

2/6 and 3/6 And we can see both the ratios are not equal.

Hence, there are not equivalent ratios.

4:1 and 8:3 are equivalent ratios -----> is false, because 4:1 is equivalent to 8:2

11:2 and 2:11 are equivalent ratios------> is false (because, are reciprocal ratios, not equivalent ratios)

3:1 and 9:3 are equivalent ratios ------> is true

because 3:1 multiply both sides by 3 -----> 3*3:1*3=9:3

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Therefore , the solution of the given problem of function comes out to be it is compatible with P(J(y)) = 1/3J(y) +4.

Math is a science that studies numbers, their variants, math and the tissues in the area, shapes, and both their real and possible locations. 'Function' refers to the relationship between a set of inputs, which each have a corresponding output. A function is a relationship between inputs in which each input yields a single variable, distinct output.

Here,

Given:

The quantity of paintings is returned by the function P, which accepts a number of months as an argument.

The function J returns the number of weeks in a year after accepting an undefined parameter.

P(weeks annually) = P(J(y)) seems to be the composites function that will provide the annual number of paintings.

Choice C is compatible with P(J(y)) = 1/3J(y) +4.

Therefore , the solution of the given problem of function comes out to be it is compatible with P(J(y)) = 1/3J(y) +4.

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Steve can select three rock songs, five alternative songs, and six rap songs in 11,250 number of ways.

1. To select three rock songs from a list of five, use the formula for combinations: nCr = 5Cr = 5!/ (3!*2!) = 10

2. To select five alternative songs from a list of six, use the formula for combinations: nCr = 6Cr = 6!/ (5!*1!) = 6

3. To select six rap songs from a list of nine, use the formula for combinations: nCr = 9Cr = 9!/ (6!*3!) = 84

4. To find the total number of selections, multiply the individual combinations: 10 x 6 x 84 = 11,250

Steve can select three rock songs, five alternative songs, and six rap songs in 11,250 number of  ways.

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As the sample size becomes larger, the sampling distribution of sample mean approaches a normal distribution.

As the sample size becomes larger, the sampling distribution of the sample mean approaches a normal distribution. This is known as the Central Limit Theorem. The Central Limit Theorem states that as the sample size increases, the sampling distribution of the sample mean becomes more and more normal, regardless of the shape of the underlying population distribution. The sample mean is an unbiased estimator of the population mean and it follows a normal distribution when the sample size is large.

The binomial distribution is a probability distribution that describes the number of success in a fixed number of trials, each with the same probability of success. While the binomial distribution is used to model the number of successes in a fixed number of trials, it is not used to model the sample mean.

Therefore, the answer is option (c) normal distribution.

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The probability of a “full house” is 6 / 4165.

Probability is a measure of the likelihood of a particular event occurring. It is expressed as a number between 0 and 1, where 0 indicates that an event is impossible and 1 indicates that an event is certain to occur.

For example, the probability of flipping a fair coin and it landing on heads is 0.5, or 50%. The probability of rolling a fair die and getting a 6 is 1/6, or about 16.67%.

A “full house” (3 cards of one kind and 2 cards of another kind)

Since there are 13 sets of each type, we have to select any 2 kinds of it.

The probability becomes =[tex]\frac{2 X 13C2 X4C3X 4C2 }{52 C5}[/tex]

On simplification,

= 3744 / 2598960

= 6 / 4165

=0.00144

So the probability of a “full house” is 0.00144.

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Answer: [tex](0,-9)[/tex]

Step-by-step explanation:

The vector from [tex](-4,2)[/tex] to [tex](3,-4)[/tex] is [tex]\langle 7, -6 \rangle[/tex].

Applying this transformation to [tex](-7, -3)[/tex] yields that the fourth vertex has coordinates [tex](-7+7, -3-6)=(0,-9)[/tex].

The graph is a right line that intercepts the y-axis at - 6 and the x-axis at x = 2, excluding x = -2. That is the second graph of the second picture gives the graph of the function.

The point at which a graph crosses the y-axis is known as the y-intercept. It is, in other words, the value of y when "(x=0)" occurs. Using the slope and a specified location, determine the y-intercept of a linear function.

Determine the graph's gradient and a point first. Enter a linear equation in slope-intercept form (y = mx + b) once this is finished. Rewrite the equation using the supplied point (x, y) and slope (m), inserting the correct values for x, y, and m.

The function is:

f(x) = (9x^2 - 36)/3x + 6

Simplify that function to a linear function for all x for which 3x + 6 ≠ 0

3x = - 6

x = -2

So, for x ≠ - 2, you can do:

f(x) = (9x^2 - 36) /   3x + 6

f(x) = 9(x^2 - 4) /   3x + 6

f(x) = 3(x + 2)(x - 2) / x+2

f(x) = 3(x - 2) = 3x - 6

Hence, the graph is a right line that intercepts the y-axis at - 6 and the x-axis at x = 2, excluding x = -2. That is the second graph of the second picture.

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(-2/3)^4 evaluates to (1/81) or 0.012345679012345678.

Answer:

a

Step-by-step explanation:

i just took it

The slope of the line in 1. is -3/4 and the slope of 2. is 9/10.

Understanding what slope is is among the most crucial things to know about lines. The line's slope, also referred to as rise over run, is how "steep" it is. By dividing the difference between the y-values at two points by the difference between the x-values, we can determine slope. Understanding how to interpret graphs and create equations is necessary in order to comprehend the significance of the definition of slope.

The slope of the line = m in y = mx + b

−3x−4y=6

4y = -3x -6

y = (-3x -6)/4

y = -3x/4 -6/4

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

2. Slope formula = y₂ - y₁ = m(x₂ -x₁)

points (6, -1) and (-4, -10)

Substitute

-10 -(-1)= m(-4 -6)

m = 9/10

Thus, the slope of the line in 1. is -3/4 and the slope of 2. is 9/10.

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​

The total price of the first invoice that activates the chain discount is $624.

To determine the quantity or percentage of something in terms of 100, use the percentage formula. Per cent simply means one in a hundred. Using the percentage formula, a number between 0 and 1 can be expressed. A number that is expressed as a fraction of 100 is what it is. It is mostly used to compare and determine ratios and is represented by the symbol %.

Given:

A manufacturer offers a 25/20 chain discount if the invoice subtotal is above $1,000.

If the list price is $52 per item.

now, to get the discount he must buy at least = 1000/52=  20 items

= 20 x $52

= $1040

Thus, (1040) (1-25%)(1- 20%)

= 1040 x 0.75 x 0.80

= 624

Hence, the total price is $624.

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The product of radical 5 and 10 radical 30 in simplest radical form is 50√6

An expression is combination of variables, numbers and operators.

We need to find the product of radical 5 and 10 radical 30 in simplest radical form

It can be written as √5×10√30

√a.√b=√ab

√5×10√30

10√5×30

10√150

10√25×6

10.5√6

50√6

Hence, the product of radical 5 and 10 radical 30 in simplest radical form is 50√6

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Answer:

What the other dude said:

The product of radical 5 and 10 radical 30 in simplest radical form is 50√6

Step-by-step explanation:

Answer:Three functions that are bounded above are y = x^2, y = x^3, y = e^x.

y = x^2 is a parabola that opens upward and has a vertex at the origin (0,0). As x increases or decreases, y will always be positive and increases or decreases accordingly, so the function is bounded above by positive infinity.

y = x^3 is a cubic function that also opens upward. As x increases or decreases, y will always be positive and increases or decreases accordingly, so the function is bounded above by positive infinity.

y = e^x is the exponential function where e is Euler's number (approximately 2.718). As x increases, y will increase towards positive infinity, so the function is bounded above by positive infinity.

Step-by-step explanation: