The graph of y=f(x) is the solid black graph below. Whoch function represents the dotted line

The unknown angle for the given right triangle ABC which is angle A is: 63°

We are given the angles of a right angle triangle ABC as;

∠B = 90°

∠C = 27°

Now, it is pertinent to note that the sum of all angles in any given triangle is always 180°. This means that in our right angle triangle ABC, we can say that;

∠A + ∠B + ∠C =  180°

Thus;

∠A + 90 + 27 = 180

∠A + 117 = 180

∠A = 180 - 117

∠A = 63°

Thus, we conclude that the value of angle A is gotten as ∠A = 63°

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Complete question is;

Find the unknown angle for the following right triangle:

Angle A Angle B Angle C

  ?            90          27

The expression for the perimeter of the triangle is 6k + m -9.

How to calculate perimeter of the triangle?

In mathematics, the perimeter of any closed shape means addition of all the sides. Therefore, triangle has three sides and their addition represents the perimeter. It can be measured in different units like meters, centimeters, etc.

According to the question, the given parameters for the triangle is as written below:

The side lengths are: (5k - 3); (k + 1) and (m - 7)

Now, the perimeter of a triangle is addition of all the sides. That means,

Perimeter of a triangle = 5k - 3 + k + 1 + m - 7 = 6k + m - 9

Hence, the expression for the perimeter of the triangle is 6k + m -9.

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B; False

Here, we want to establish if there is a relationship between two variables

From the question, it was stated that at higher speeds, the ticket fee to be paid will be higher

So, what this mean is that the amount of ticket fee to be paid is a factor of the speed at which she was traveling

This directly makes the speed the independent variable while the ticket fee (value depends on the speed of travel) represents the dependent variable

Hence, we can establish that that the ticekt fee is a function of the speed and not the other way round

This makes the correct option FALSE

1) Let's make use of pair of number lines to find the union between those intervals:

2) Note that in the first line the point 10 is included, while in the second one is not so the answer is:

Answer:

  [tex]y=\begin{cases}-\dfrac{7}{2}x-16&\text{for $-6\le x\le-4$}\\\\\dfrac{1}{5}x-\dfrac{6}{5}&\text{for $-4 < x < 1$}\\\\\dfrac{9}{4}x-\dfrac{13}{4}&\text{for $1\le x\le 5$}}\end{cases}[/tex]

Step-by-step explanation:

You want the piecewise function that describes the relation shown in the graph.

The relation shown consists of three line segments connecting the points ...

  (-6, 5) and (-4, -2)

  (-4, -2) and (1, -1)

  (1, -1) and (5, 8)

The equations for the lines between the pairs of points can be written using the slope formula and the point-slope equation of a line.

The slope formula tells you the slope is ...

  m = (y2 -y1)/(x2 -x1)

And the point-slope equation of a line is ...

  y -y1 = m(x -x1)

If we add y1 to the equation of the line, and substitute the equation for m, we get ...

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1 . . . . . . a 2-point formula for a line

Between x-values -6 and -4, the equation of the line will use the first pair of points:

  y = (-2 -5)/(-4 -(-6))(x -(-6)) +5

  y = -7/2(x +6) +5 = -7/2x -16

Between x-values -4 and 1, the equation of the line will use the second pair of points:

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

  y = 1/5(x +4) -2 = 1/5x -6/5

Between x-values 1 and 5, the equation of the line will use the last pair of points:

  y = (8 -(-1))/(5 -1)(x -1) +(-1)

  y = 9/4(x -1) -1 = 9/4x -13/4

The piecewise function uses the equation for the line that is applicable for the appropriate x-values. We have listed those sets of x-values above.

We need to make sure that the function has only one definition for any given value of x. When two segments have a point in common, we need to make sure only one segment includes it.

  [tex]y=\begin{cases}-\dfrac{7}{2}x-16&\text{for $-6\le x\le-4$}\\\\\dfrac{1}{5}x-\dfrac{6}{5}&\text{for $-4 < x < 1$}\\\\\dfrac{9}{4}x-\dfrac{13}{4}&\text{for $1\le x\le 5$}}\end{cases}[/tex]

Answer: THE ANSWER TO THAT IS C

Step-by-step explanation:

The marginal profit is -41 dollars.

In accounting, a profit is an income that is given to the owner throughout a successful market producing process (business).

The advertising is given by P(x) = 930 + 15x -4x².

The marginal profit at x = 7 is given by

P(x) = 930 + 15x -4x²

P'(x) = 15 - 8x

Now at x = 7 the marginal profit is

P'(7) = 15 - ( 8×7 )

or, P'(7) = -41

Hence there will be marginal profit of -41 dollars.

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Answer: The answer is -5559

Step-by-step explanation:

The form of the equation of the line in slope-intercept form

where m is the slope and b is the y-intercept

The y-intercept is the value of the y-coordinate when the x-coordinate is equal to zero

Therefore in our case

m=8

b=5

We substitute the values

ANSWER

y=8x+5

The required implicit solution to the initial-value problem would be  5x²- y² = 9.5 which is the equation of a hyperbola.

Hyperbola is defined as a conic section, a two-branched open curve, produced by the intersection of a circular cone.

(x-h)²/b² - (y-k)²/a² = 1

We have been given that 5x²- y² = c is a one-parameter family of solutions of the differential equation.

To determine an implicit solution to the initial-value problem ydy/dx = 5x

⇒ y dy/dx = 5x

⇒ y dy = 5x dx

⇒ y²/2 = 5x²/2 + c

If y(3) = −8 which is the means that when substitute x = 3 then y = -8

⇒ (-8)²/2 = 5(3)²/2 + c

⇒ 64/2 = 5(9)/2 + c

⇒ 32 = 22.5 + c

⇒ c = 9.5

Substitute the value of c in the given function 5x²- y² = c

⇒ 5x²- y² = 9.5 which is the equation of a hyperbola.

Therefore, the implicit solution to the initial-value problem would be  5x²- y² = 9.5.

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1: you can keep mixed numbers when performing multiplication or division.-----> true

2: numerators must be multiplied by numerators and denominators must be multiplied by denominators.------>false

3: You must convert mixed numbers into improper fractions before multiplying or dividing. ------> false

4: The denominators MUST be the same.​ -----> false

When £50 is decreased by 60%, the remaining value is £20.

A percentage refers to the ratio of a variable expressed as a fraction of 100.

Percentages show the proportional value contained in another.

We use the percent sign (%) to denote percentages, which may be increases or decreases.

Initial value = £50

Percentage decrease = 60%

Percentage change = 40% (1 - 60%)

In monetary terms, the final value after the percentage decrease = £20 (£50 x (1 - 60%).

Thus, when £50 is reduced by 60% the value left is only 40% of the former deal, which is £20.

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From the graph we can say that Domain : (-∞,-1) ∪(1,∞)

Range : (0,∞)

Mathematical procedures are comparable to those of a soda vending machine. You can choose from a variety of sodas after you deposit a particular sum of money. Similar to how we enter different numbers into functions, we also receive new numbers as the outcome. The two essential characteristics of functions are domain and range. A soda can be purchased using quarters and one dollar bills. If pennies are put into the machine, no soda flavor will be provided. As a result, the domain depicts the possible inputs, which are quarters and one-dollar bills. No matter how much you pay, a Coke machine won't give you a cheeseburger.

From the graph we can say that

Domain : (-∞,-1) ∪(1,∞)

Range : (0,∞)

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The given proportion is expressed as

y/5 = 7/8

If we crossmultiply, it becomes

y * 8 = 7 * 5

8y = 35

y = 35/8

y = 4.375

Rounding to the nearest tenth,

y = 4.4

The number of constructive seedlings in a row of 50 seeds is 46.

What is probability of a given event and how can it be analyzed?
Potential is described by probability. This branch of mathematics deals with the occurrence of a random event. The value's range is 0 to 1. Probability generally refers to the degree to which something is likely to occur. Utilize probability to ascertain how likely something is to occur. Many things are hard to predict with 100% certainty. We can only anticipate the possibility of an event occurring using it, or how likely it is. In the probability scale, 0 indicates an impossibility and 1 indicates a certainty. Every event's probability in a sample space is one.

Given, the germination rate of the seeds to seedlings is = 92%
Therefore, the probability of any seed sprouting is 0.92.
Hence the required number of seedlings can be expected in a row of 50 seeds = 50*0.92 = 46 seeds
Thus, the number of constructive seedlings in a row of 50 seeds is 46.

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Some arithmetic sequences could be easier to write as functions. As long as I know what value "n" has, I can find out any term in a particular Sequence whenever I need to. You might choose the implicit term over the prior term of a Sequence if it is known.

The arithmetic mean can be calculated as one approach. Divide the total by the total number of values after adding up all the values.

A series of numbers called an arithmetic progression or arithmetic sequence has a constant difference between the terms. An arithmetic progression with a common difference of 2 is found, for instance, in the numbers 5, 7, 9, 11, 13, and 15.

Some arithmetic sequences could be easier to write as functions. You are aware of the prior term.

Consider that we only have the numbers (...,4,...) from an arithmetic sequence with a common difference of 5.

The complete question is:

You are given the first four terms of an arithmetic sequence. Under what conditions might a recursive formula be preferred over the explicit formula? Under what conditions might an explicit formula be preferred over the recursive formula?

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Answer:

3bu - 24b -nu + 8n

Step-by-step explanation:

Expanded

Answer:

x= 0,1+3i, 1-3i

Step-by-step explanation:

So the first option

189cm²

Step-by-step explanation:

area is multiplication so it will be L×B

also because its a rectangle

Explanation

Step 1

Step 2

find the slope

the slope is given by:

Let

P1(3,7.5)

P2(8,10)

replace

Step 3

usin P1 (3,7.5) ans m= 0.5 find the equation

I hope this helps you

The  quadratic equation that opens down and has vertex at (2,-8) is y = (-|a|)*(x - 2)² + (-8).

The graph of a quadratic function has the shape of a parabola. Although a parabola's "width" or "steepness" and direction of opening can differ, they all have the same basic "U" shape.  If the leading coefficient is larger than zero, the parabola opens upward; if it is less than zero, it opens downward.

The quadratic equation's vertex form is y = a*(x - h)2 + k.

Given that (2,-8) or (h, k) is the vertex point (2,-8)

Since the graph starts out downward, a will have a negative value.

Since |a| is the magnitude of a, the quadratic equation will then be written as y = (-|a|)*(x - 2)2 + (-8).

Consequently, y = (-|a|)*(x - 2)2 + is a quadratic equation that opens downward and has a vertex at (2,-8). (-8).

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1)

2) The term quadratic describes something that pertains to squares, to the operation of squaring, to terms of the second degree

3) of or relating to the fourth degree. a quartic polynomial or equation.

4) quintic : a polynomial or a polynomial equation of the fifth degree.

5)

6)

Answer: slope = -4

Step-by-step explanation:

y – 3 = –4(x – 5)

y - 3 = -4x + 20

y = -4x + 23

slope = -4

Answer:

Figure 3

Step-by-step explanation:

That is a trapezoid, not a parallelogram.

Using simple interest, the amounts she invested are given as follows:

Simple interest is used when there is a single compounding per time period, usually measured in years.

The amount of money after t periods in is modeled by:

A(t) = P(1 + rt)

The interest accrued after t periods is modeled by:

I(t) = Prt

In which:

She had two investments, investing a total of $4500, hence:

[tex]P_1 + P_2 = 4500[/tex]

The return for the 9% investment exceeds that from the 6% investment by $180, hence:

Then:

[tex]I_2 = 0.06(4500 - P_1)[/tex]

[tex]I_1 - 180 = 0.06(4500 - P_1)[/tex]

[tex]0.09P_1 - 180 = 0.06(4500 - P_1)[/tex]

[tex]0.15P_1 = 450[/tex]

[tex]P_1 = \frac{450}{0.15}[/tex]

[tex]P_1 = 3000[/tex]

Which is the amount invested at 9%, hence the amount invested at 6%, considering that a total of $4,500 was invested, is given by:

4500 - 3000 = $1,500.

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The equation for two different bowling alleys is 2x - 3y = -2

This is a problem from algebraic equations. We can solve this problem by following a few steps.

In the first case, he paid $7 to rent a pair of shoes and x dollars an hour to bowl and bowled for 2 hours on Friday.

Here, the cost to bowl for one hour is x dollars. So, the cost to bowl for 2 hours is ( 2× x ) = 2x

Now, the total expenditure for shoes and to bowl is, (2x + 7) dollars

In the second case, he paid $5 to rent a pair of shoes and y dollars an hour to bowl and bowled for 3 hours on Saturday.

Here, the cost to bowl for one hour is y dollars. So, the cost to bowl for 3 hours is (3 × y) = 3y

Now, the total expenditure for shoes and to bowl is, (3y + 5) dollars.

As the total expenditure is the same in these two cases. Therefore, we can conclude,

(2x + 7) = (3y + 5)

Or, 2x - 3y = -2

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At a tax rate of 4 mills, Rolan's monthly taxes are $667.00.

Given:

Assessed value = 1.5 million dollars

Amount for Improvements = $500,000

Tax rate = 4 mills

Total assessment of the property = Assessed value + Improvements

                                                       = 1,500,000 + 500,000

                                                       = $2,000,000

Multiply these 2 million by 4 mills then divide by 1000.

(2,000,000 × 4)/1000

= $8000 in annual taxes

To calculate the monthly tax amount divide by 12.

$8000/12 = $667.00

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The probability is given by -0.001, that the mean of the sample would differ from the population mean by less than 0.9 watts.

What is normal probability distribution?

Normal distribution also known as the Gaussian probability, ia a probability distribution that is symmetric about the mean, showing that data bear the mean are more frequent in occurrence than data far from the mean.

In a set with mean μ and standard deviation (which is the square root of the variance) σ , the z score of a measure X is given by:

Z =X-μ/σ

we have given μ =129

σ = [tex]\sqrt{100}[/tex] n = 96

This is the pvalue of Z when X = 129+1.7 =130.7 subtracted by the pvalue of Z when X = 129 - 1.7 = 127.3

When X = 130.7

Z =X-μ/σ

Z = 130.7-129/10

Z = 0.17  pvalue = 0.1699

When X = 127.3

Z =X-μ/σ

Z = 127.3-129/10

=-0.17 pvalue

0.1699 - 0.1700 = -0.001

Hence the probability is -0.001

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The area of the sector is approximately 1954.77 square yards.

A circular sector, also known as a circle sector or a disc sector (symbol:), is a piece of a disc (a closed region bordered by a circle) encompassed by two radii and an arc. The smaller area is known as the minor sector, and the bigger is known as the major sector.

Any point on the circle outside of the sector can be connected to the arc's endpoints to produce half of the central angle.

We know that the area of a circle is πr² and the area of the sector of a circle with angle θ is given by θ/360 πr² .

Area of the sector

= 140°/360°  × π × 40²

= 1954.7687... square yards.

≈ 1954.77 square yards.

Therefore the area of the sector is approximately 1452.113 square yards.

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