TRUE/FALSE. like the edges of a filled-in area, the endpoints of a polygon do not need to conform to snap points.

y=7 is One of line M's potential equations.

Let L and M be two lines that are perpendicular to each other. Slope of line is given by m=x 2 −x 1/ y 2​ −y 1

If the denominator is zero, or if the value of the x-coordinate is the same at all points, the value of m is undefined. Every point lying on L has the same value of the x-coordinate because L has an undefined slope.

L is a vertical line because it is parallel to the Y-axis.

Lines that are vertical and horizontal are perpendicular to one another.

∴ Line M will be parallel to the X-axis since it is perpendicular to line L.

Every point located on M will have a constant y-coordinate.

∴ m=0 for M.

Thus, y=7 is one of line M's potential equations.

​

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​

Answer:

*50

Step-by-step explanation:

Sum of the interior angle

(n - 2) 180

From the question n is 3.

=(3 - 2) 180

=(1) 180

=180

The value of x

x + (x + 5) + (x + 25) 180

=x + x + x + 5 + 25 = 180

=3x + 30 = 180

=3x = 180 - 30

=3x = 150

=3x/3 = 150/3

x = 50

Therefore the value of x is 50.

The impedance of the circuit in this problem is given as follows:

Z = (26 + 39i)/11.

The impedance of a circuit of Voltage V and Current I is given by the equation presented as follows:

Z = V/I.

The parameters for this problem are given as follows:

Hence the impedance is given as follows:

Z = (12 + 5i)/(3 - 2i).

Removing the complex number from the denominator, we have that:

Z = (12 + 5i)/(3 - 2i) x (3 + 2i)/(3 + 2i)

Z = [(12 + 5i)(3 + 2i)]/11

11 because (3 - 2i)(3 + 2i) = 9 - 2i² = 9 + 2 = 11, as i² = -1.

Hence:

Z = (36 + 39i - 10)/11

Z = (26 + 39i)/11.

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The null hypothesis population proportion for this test is 33%. The test is used to determine if the proportion of only children in the special program is significantly different from the proportion for the school district, at an alpha level of 0.05.

Step 1: Define the parameters:

Population proportion (p): 33%

Significance level (α): 0.05

Step 2: Calculate the test statistic:

Sample proportion (p-hat): 130/345 = 0.37

Step 3: Calculate the critical value:

Critical value (α): 0.05

Step 4: Compare the test statistic to the critical value:

Test statistic (p-hat) > Critical value (α): 0.37 > 0.05

The test statistic is greater than the critical value, so the null hypothesis is rejected. Therefore, the proportion of only children in the special program is significantly different from the proportion for the school district.

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The total time of homework is represented by T = 2x + 20.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Vlad spent 20 minutes on his history homework and then completely solved X math problems that took two minutes to complete.

The expression can be written as:-

T = 2x + 20 minutes

Here, T is the total time, and x is the number of math problems.

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The total surface area is 28 square units.

Each of the 6 faces in the original cube has an area of 2* 2 = 4 square units. Thus, the original figure's surface area as a whole was 24 square units.

The new figure has the same surface area as the old one, plus six new faces that each have an area of one dollar per square unit, for a total surface area increase of six dollars. However, the 1 square unit of the bigger cube's top and the 1 square unit of the smaller cube's bottom are not surfaces and do not contribute to the surface area.

This results in a total surface area of 24 + 6 - 1 - 1 = 28 square units.

Therefore, The total surface area is 28 square units.

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As a result, there is an 11/16 chance that there will be at least as many heads as tails.

The branch of mathematics concerned with probability is known as probability theory. Although there are several different interpretations of probability, probability theory treats the concept rigorously mathematically by expressing it through a set of axioms. The probability is a measure of the likelihood that an event will occur. It assesses the event's certainty. P(E) = Number of Favourable Outcomes/Number of Total Outcomes is the probability formula. A probability is a number that represents the likelihood or chance that a specific event will occur. Probabilities can be expressed as proportions ranging from 0 to 1, as well as percentages ranging from 0% to 100%.

Here,

The likelihood that there will be more tails, more heads, or equal numbers of each is 5/16, 5/16, and 6/16, respectively. Therefore, the probability that there will be at least as many heads as tails is 11/16.

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Complete Question:

Harold tosses a nickel four times. The probability that he gets at least as many heads as tails is:

The first step in evaluating 2+7. 12/6-3² is to substitute the values for the numbers and calculate the sum of 2+7, which is 9.

Evaluating is the process of making judgments about something based on a set of criteria. It involves analyzing and assessing a subject and making a determination of its value or worth. This can be done for a variety of things, such as an essay, a project, an individual or group, or a product. Evaluation is a crucial part of the decision-making process and involves a careful consideration of all relevant information and factors. It helps to identify strengths and weaknesses, and determine the effectiveness of something. Evaluating is also used to measure performance, identify areas for improvement, and make comparisons.

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0.30 is the probability that the member selected at random is from the shaded region of the graph. assume the variable x is normally distributed.

What is probability and example?

Probability = the number of ways of achieving success. the total number of possible outcomes. For example, the probability of flipping a coin and it being heads is ½, because there is 1 way of getting a head and the total number of possible outcomes is 2 (a head or tail). We write P(heads) = ½ .

Remember that

z =(x - μ)/σ

where

μ=509

σ=121

so

Find out the value of Z for x=200

Z =(200 - 509)/121

Z=-2.5537

Find out the value of Z for x=450

Z=(450-509)/121

Z=-0.4876

Hence, 0.30 is the probability that the member selected at random is from the shaded region of the graph. assume the variable x is normally distributed.

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The equation of the line whose x and y -intercepts are -5/3 and 3/5 respectively is  [tex]9x - 25y + 15 = 0\\[/tex] .

Given,

           The x-intercept of a line = -5/3

            The y-intercept of a line = 3/5

   by substituting values in the intercept form of a line:

                         [tex]-\frac{3x}{5} + \frac{5y}{3} = 1\\[/tex]

     On multiplying the equation by 15 both L.H.S. & R.H.S.

                          [tex]-9x + 25y = 15[/tex]

                      ⇒ [tex]9x - 25y + 15 = 0\\[/tex]

Therefore, the Equation of line is   [tex]9x - 25y + 15 = 0\\[/tex] .

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The given equation 9x2 + 3xy + 15x + 5y in factored form is[tex](3 x+y)(3 x+5)$$[/tex]

Factor [tex]$9 x^2+3 x y+15 x+5 y:[/tex]

Steps

[tex]& 9 x^2+3 x y+15 x+5 y \\[/tex]

[tex]& =\left(9 x^2+3 x y\right)+(15 x+5 y)[/tex]

Factor out 3 x from [tex]$9 x^2+3 x y: \quad 3 x(3 x+y)$[/tex]

Factor out 5 from[tex]$15 x+5 y: \quad 5(3 x+y)$[/tex]

[tex]$$=3 x(3 x+y)+5(3 x+y)$$[/tex]

Factor out common term[tex]$3 x+y$[/tex]

[tex]$$=(3 x+y)(3 x+5)$$[/tex]

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The probability that the next piece of fruit out of the bag will be an apple is ²/₃.

The probability is the chance that an expected outcome occurs out of many possible outcomes.

Probability is a fractional value that is obtained as the quotient of the expected outcome over the total events.

The number of apples = 4

The number of peaches = 3

The number of plums = 2

Total number = 9

The number of fruits taken out = 3 (2 plumbs and 1 peach)

The remaining fruits in the grocery bag:

The number of apples = 4

The number of peaches = 2 (3 - 1)

The number of plums = 0 (2 - 2)

Total number = 6

The probability of picking an apple out of the remaining fruits = 4/6 = 2/3

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The categories include,

8th grade: left-skewed unimodal

Unimodal and symmetric birth weight

Computer count is unimodal and skewed to the right.

Bimodal adult weight distribution

A graph called a histogram shows the frequency distribution of a few data points for a single variable. Data is frequently divided into a number of "bins" or "range groups" by histograms, which count the number of data points in each bin.

While bar charts show categorical factors, histograms display numerical or quantitative data. In most situations, a histogram's numerical data will be continuous (having infinite values). To attempt to plot a continuous variable's possible values on an axis would be absurd.

Based on the frequency distribution, there are four different types of histograms.

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The complete question is: Classify each histogram using the appropriate descriptions. Identify all of the descriptions that apply for each histogram.

The conclusion about angles B and C is that the angles are equal angles

How to determine the true statement?

The given parameters are:

Angle A and Angle B are supplements

Angle A and Angle C are supplements

Supplementary angles add up to 180 degrees.

This means that

A + B = 180

A + C = 180

Subtract the two equations

So, we have

A - A + B - C = 180- 180

Evaluate the like terms

So, we have

B - C = 0

Add C to both sides

B = C

Hence, both angles are congruent angles

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Answer: x=4

Step-by-step explanation:

Firstly, x+3 is in absolute value and absolute value basically turns that into positive, which brings us to x+3=7. Now, use your basic algebra skills to subtract 3 form both sides and get x=4. Hope this helps!

Answer:

Two roots: -10 and 4

Step-by-step explanation:

Since the expression inside the modular brackets can be positive or negative, the equation can have two different roots. And it is solved for the positive and negative options.

Positive option:

x+3=7
x=7-3
x=4

Negative option:

x+3=-7
x=-7-3
x=-10

Answer:

120

Step-by-step explanation:

This is simply because 0.25 is 1/4 and 30 ÷ 1/4 is the same as 30 × 4/1 which equals to 120

Answer:

120

Step-by-step explanation:

multiply 100 in the numerator and denominator to remove the decimal point.2

30×100/0.25×100

=3000/25

=120

The end behaviour of the graph shows that the range of the graph ranges from 0 to ∞.

The domain of a function is the set of values that can be plugged into it. This set contains the x values in a function like f. (x). A function's range is the set of values that the function can take. This is the set of values that the function returns after we enter an x value.

In the given image the graph is showing a parabola symmetric about the y-axis. The range of the graph is varying from 0 to ∞. The graph's end behaviour indicates that the graph's range is from 0 to.

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It’s cAnswer:

Step-by-step explanation:

it’s right

The graph that represents the situation is added as an attachment

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

This means that the graph would be represented using a distance/time graph

Such that the distance would be on the y-axis and the time would be on the x-axis

See attachment for the graph

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The measure of angle 2 is given as follows:

115º.

When two parallel lines are cut by a transversal, the consecutive angles relative to the same vertex are linear pairs, which are supplementary angles.

When two angles are supplementary, the sum of their measures is of 180º, meaning that the equation for this problem is given as follows:

m < 1 + m < 2 = 180º.

Since m < 1 = 65º, the measure of angle 2 is obtained as follows:

m < 2 = 180 - 65

m < 2 = 115º.

The figure giving context to the problem, without scaling, is given at the end of the answer.

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Answer:

3.725

Step-by-step explanation:

10-6.275

4-0.275

3.725

Part 1

Angles of a quadrilateral add to 360 degrees.

[tex]7x+65+85+105=360\\\\7x+255=360\\\\7x=105\\\\x=15[/tex]

Part 2

If [tex]x=15[/tex], then [tex]7x=105^{\circ}[/tex]. Thus, the angles measuring [tex]7x[/tex] and [tex]105^{\circ}[/tex] are opposite angles since opposite angles of a kite are congruent.

This means the remaining angles, which are the angles measuring [tex]65^{\circ}[/tex] and [tex]85^{\circ}[/tex], are also opposite using the process of elimination.

Answer:

10 units

Step-by-step explanation:

[tex]\boxed{\begin{minipage}{7.4 cm}\underline{Distance between two points}\\\\$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$\\\\\\where $(x_1,y_1)$ and $(x_2,y_2)$ are the two points.\\\end{minipage}}[/tex]

To find the distance between two points, substitute the given points into the distance formula and solve for d.

Given points:

[tex]\begin{aligned}\implies d&=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}\\&=\sqrt{(2-(-8))^2+(-4-(-4))^2}\\&=\sqrt{(10)^2+(0)^2}\\&=\sqrt{100}\\&=10\end{aligned}[/tex]

However, as the y-values of the two given points are the same, we can simply find the difference between the x-values of the two points to find the distance between point A and B:

[tex]\begin{aligned}\implies \textsf{Distance}&=x_B-x_A\\&=2-(-8)\\&=2+8\\&=10\end{aligned}[/tex]

Therefore, the distance between point A and point B is:

The value of [tex]$\lfloor \sqrt{X} \rfloor$[/tex] can be any number between 10 and 13, since 14 is not an integer.

Let x  be the random variable denoting the real number selected uniformly at random between 100 and 200.

The square root of [tex]$X$, $\sqrt{X}$,[/tex]  will be a real number between 10 and 14. The floor function, [tex]$\lfloor \sqrt{X} \rfloor$[/tex] will take the integer less than or equal to[tex]$\sqrt{X}$.[/tex]This means that the value of [tex]$\lfloor \sqrt{X} \rfloor$[/tex] can be any number between 10 and 13, since 14 is not an integer.

For example, if [tex]$X = 150$[/tex], then [tex]$\sqrt{X} = 12.25$[/tex], so [tex]$\lfloor \sqrt{X} \rfloor = 12$[/tex]

In summary, for any real number selected uniformly at random between 100 and 200, the value of[tex]$\lfloor \sqrt{X} \rfloor$[/tex] is any number between 10 and 13.

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(a) It will take approx 10.2 years to double your principal at 7% interest.

(b) The required rate of interest to double our income in 2 years is approx 44%

(a)    Given,

                  Annual rate of interest = 7%

                    Let the principal be [tex]x[/tex].

         Formulae for compound interest :

                    [tex]A = P(1 + \frac{r}{n})^{nt}[/tex]

Substituting the value of   [tex]P , r , n[/tex] in above formulae.

                  [tex]2P = P(1 + \frac{r}{n})^{nt}\\\\2x = x(1 + \frac{0.07}{1})^{1t}\\\\2 = 1.07^{t} \\\\t=\frac{ln(2)}{ln(1.07)\\}\\\\t = 10.244768[/tex]

Therefore, it took approx. 10.2 years to double your principal at 7% interest.

(b) Given,

                  The annual rate of interest = [tex]r[/tex]%

                    Let the principal be [tex]x[/tex].

         Formulae for compound interest :

                         [tex]A = P(1 + \frac{r}{n})^{nt}[/tex]

we want our money to double in 2 years

                         [tex]2P = P(1 + \frac{r}{n})^{nt}\\\\2x = x(1 + \frac{r}{1})^{2}\\\\2 = (1+r)^{2} \\\\\sqrt{2} = 1 + r\\\\r=0.44[/tex]

Therefore, the required Rate of interest is approx 44%.

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Answer:

B

Step-by-step explanation:

If both signs are the same (++,--), then you subtract.

If the two signs are different(+-,-+), then you add.

Chemical A's rate law may be zero order and is unaffected by the ratio of reactant to product concentrations.

For the zero order reaction, [tex]$\mathrm{A}+\mathrm{B} \rightarrow \mathrm{C}$[/tex]

Rate equation is : Rate [tex]$=\mathrm{k}[\mathrm{A}]^0[\mathrm{~B}]^0$[/tex]

As a result, the pace of the reaction is unaffected by the amounts of reactant and product present.

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The statement b(14) = 170 is interpreted using the function 1850 - 120w = b to be:

When w is 14 b is equal to 170

The function 1850 - 120w = b  as in the problem is a linear function.

A linear function is one which all the parameters has exponents of one. In the linear function parameters are defined below

b = the output value

w = the input value

120 = slope

1850 = the y intercept

The statement b(14) = 170 means that at input of 14 the out put is 170. this is shown mathematically

1850 - 120w = b

1850 - 120 * 14 = b

1850 - 120w = 170 = b

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The equation is x² - 7x+11 is in form of quadratic equation ax²+bx+c where a = x² , b = -7 and c = 11 .

Option B is correct.

Quadratic equations are second-degree algebraic expressions with the form ax² + bx + c = 0. The word "quadratic" comes from the word "quad," which means square. To put it another way, an "equation of degree 2" is a quadratic equation. Numerous situations call for the use of a quadratic equation.

Factoring  x²-7x+11

The first term is,  x²  its coefficient is  1 .

The middle term is,  -7x  its coefficient is  -7 .

The last term, "the constant", is  11

                                                    x² - 7x  + 11  = 0

When two things are multiplied together and both depend on the same variable, quadratic equations are frequently used. A quadratic equation is used, for instance, when working with area when both dimensions are written in terms of the same variable.

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The water Ms. Morales put in the pool in terms of π is  [tex]\pi[/tex]6561inch^3

Suppose that the radius of considered right circular cylinder be 'r' units.

And let its height be 'h' units.

Then, its volume is given as:

[tex]V = \pi r^2 h \: \rm unit^3[/tex]

Right circular cylinder is the cylinder in which the line joining center of top circle of the cylinder to the center of the base circle of the cylinder is perpendicular to the surface of its base, and to the top.

Given;

Diameter= 54 in.

Height of pool= 12ft

Now,

3/4 th height of pool;

3/4 x 12= 9inch

Volume= [tex]\pi r^{2}h[/tex]

=[tex]\pi[/tex]27x27x9

=[tex]\pi[/tex]6561inch^3

Therefore, the volume of pool will be [tex]\pi[/tex]6561inch^3

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