a cell phone costing 747 was advertised at a reduced price of 599 calculate the percentage discount being offered​

      Statement              Reason

1.      LQ ║NP                  Given

2.     ∠Q ≅ ∠N                 ASA Theorem

3.     ∠L ≅ ∠P                   Alternate Interior Angles

4.    ΔLMQ ~ ΔPMN         ASA Similar Theorem

Similar shapes are enlargements of each other using a scale factor.

All the corresponding angles in the similar shapes are equal and the corresponding lengths are in the same ratio.

The scale factors for length, area and volume are not the same.

From the given diagram,

 Statement              Reason

1.      LQ ║NP                  Given

2.     ∠Q ≅ ∠N                 ASA Theorem

3.     ∠L ≅ ∠P                   Alternate Interior Angles

4.    ΔLMQ ~ ΔPMN         ASA Similar Theorem

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Answer:

40

Step-by-step explanation:

Perimeter of rectangle = 2(l + w)

L= 12

W = 8

Let's solve

2(12 + 8) = 40

So, the perimeter of the rectangle is 40

Answer:

none of these I think this is because I actually don't know I don't know because you know I'm first timer and I'm still on but choose actually wait no I'm not on virtuous I am almost call record sorry I forgot just bye

Answer:

the solution to the system of equations is (x, y) = (3, -2).

Step-by-step explanation:

y = -2x + 4 (Equation 1)

y = x - 5 (Equation 2)

To solve for x, we can equate the right sides of the equations:

-2x + 4 = x - 5

Now, we can solve for x:

-2x - x = -5 - 4

-3x = -9

x = (-9) / (-3)

x = 3

Substituting the value of x back into Equation 2, we can solve for y:

y = 3 - 5

y = -2

Answer:

Is the question complete

The correct statement regarding the transformation is given as follows:

Dilation bu a scale factor of 0.5 about the origin. Then reflect over the x-axis.

The true statements about the dilation are given as follows:

A dilation can be defined as a transformation that multiplies the distance between every point in an object and a fixed point, called the center of dilation, by a constant factor called the scale factor.

For this problem, the coordinates of the dilated line segment are half the coordinates of the original line segment, hence the scale factor is given as follows:

k = 0.5.

The y-coordinate then has the signal exchange, hence the figure is also reflected over the x-axis.

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Answer:

Simplifies to:

5.991339a^5b^3

Answer:

\( \frac{1}{2} \times base \times height\)

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Answer:

The vertex of the function is at (–3,–16)

The graph is increasing on the interval x > –3

The graph is positive only on the intervals where x < –7 and where

x > 1.

Step-by-step explanation:

The graph of \(f(x)=(x-1)(x+7)\) has clear zeroes at \(x=1\) and \(x=-7\), showing that \(f(x) > 0\) when \(x < -7\) and \(x > 1\). To determine where the vertex is, we can complete the square:

\(f(x)=(x-1)(x+7)\\y=x^2+6x-7\\y+16=x^2+6x-7+16\\y+16=x^2+6x+9\\y+16=(x+3)^2\\y=(x+3)^2-16\)

So, we can see the vertex is (-3,-16), meaning that where \(x > -3\), the function will be increasing on that interval

Answer:

a. Amplitude: 19.65446

b. Vertical Shift: 58.00713

c. Period: 2/0.22797 = 27.56146

d. 19.65446 * sin(0.22797x + 1.79552) + 58.00713

e. Model's Temperature at 10 A.M.: f(-7) = 61.91

   This value is 9.91 degrees higher than the actual value.

Step-by-step explanation:

With 1 am being timed as t = 1, we fitted the temperature data collected at different points during the day in Portland, Oregon using sine regression. After receiving the sine function, we respond to the many questions connected to the sine function's properties.

A smooth, repeating oscillation characterizes a sinusoidal function. Sine is an oscillation that is smooth and repeated, thus the name "sinusoidal." A pendulum swinging, a spring bouncing, or a guitar string vibrating are a few examples of commonplace objects that may be described by sinusoidal functions.

Given, The hourly temperature at Portland, Oregon, on a particular day is recorded.

Using sine regression on the given data with t = 1 being the hour 1 am etc, we get the following sine regression formula using the TI-83 Graphing Calculator where T is the temperature:

T = a sin(bt + c) + d

Where a = 19.65, b = 0.28, c = -2.93, d = 58.01

From the sine regression function above:

a. The amplitude of the sinusoidal function is a = 19.65.

b. The vertical shift is d = 58.01.

c. The period is 2*pi /b = 2*pi/ 0.28 = 22.44

d. At 5 PM, the time value is t = 17. Hence the temperature distribution with 5 PM being t = 0 will be

t = asin[b(t - 17) + c] +d.

e. From the table, at 10 AM, the actual value of the temperature is 52 degrees.

Using the model in part a., at 10 AM, with t = 10, the temperature will be

T = a sin(10b + c) + d

T = 55.46 degrees

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Complete question:

Answer:

I think your answer is 73".

I think it will help you

The statement that must be true for the two-parent families at that school  is option A: A family where the father works part time is twice as likely as a family where the father is not working to have the mother work part time.

Based  on the  table showing relative frequencies for each column, it is seen that the occurrence rate for the pairing of "Father works part time" and "Mother works part time" is 0.14. The occurrence rate of the combination of "Father unemployed" and "Mother employed part-time" is 0.07.

Hence it will be:

0.14  = 2 x 0.07

0.14 = 0.14

So, 14% of the mothers work part-time in families where the father works part-time and that of 7% of the mothers work part-time in families where the father is not working. Hence option A is true.

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See full text below

A school in New Zealand collected data about the employment status of the mother and father in two-parent families. The two-way table of column relative frequencies below shows the data.

Father works full time Father works part time Father not working

Mother works full time

0.17

0.170, point, 17

0.14

0.140, point, 14

0.13

0.130, point, 13

Mother works part time

0.23

0.230, point, 23

0.14

0.140, point, 14

0.07

0.070, point, 07

Mother not working

0.60

0.600, point, 60

0.71

0.710, point, 71

0.80

0.800, point, 80

Column total

1.00

1.001, point, 00

1.00

1.001, point, 00

1.00

1.001, point, 00

Based on the data, which of the following statements must be true for the two-parent families at that school?

Choose 1 answer:

Choose 1 answer:

(Choice A)

A

A family where the father works part time is twice as likely as a family where the father is not working to have the mother work part time.

(Choice B)

It is most common for neither parent to be working.

(Choice C)

C

Families where the father works full time are more likely to have the mother working full time than part time.

(Choice D)

D

There are twice as many families where the mother works full time and the father works part time as families where the mother works part time and the father doesn't work.

Answer:

Step-by-step explanation:

372 Millimeters

Answer:

2,300 millimeters

Step-by-step explanation:

when you convert 30 centimeters it’s 300 millimeters. When you convert 2 meters it’s 2,000 millimeters so…. That is the correct answer plus I just did the quiz and got it correct with that answer.

Answer:

If f(-5) = 7, then the point P(-5, 7) will be on the graph of f

where -5 is the x-coordinate and 7 is the y-coordinate

Step-by-step explanation:

The total cost of a CD player is $58.52

Answer:

-8 ≤ y ≤ 7

Step-by-step explanation:

Answer:

Triangles in Geometry

Step-by-step explanation:

Answer:

FOOD:

Fraction = 1/4

Decimal = 0.25

Percent = 25%

RENT:

Fraction = 6/10

Decimal = 0.60

Percent = 60%

TRANSPORT:

Fraction = 3/20

Decimal = 0.15

Percent = 15%

These sums make sense because he payed for each they all add up to the monthly payment he has to do.

Step-by-step explanation:

Hope this helped!
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If the scale factor is 5:8, it is the same as 5/8.

In order to calculate the width of the model, just multiply its actual width by the scale factor, as follow:

width of the model = (20 ft)(5/8) = 12.5 feet

Hence, the width of the model is 12.5 feet

Exterior Angle Inequality Theorem

\( \normalsize\blue{\overline{\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad \ \ \ }}\)

Direction:

Use the Exterior Angle Inequality Theorem to find the measure of each angle below.

Answer:

\( \huge \underline{\boxed{\sf \red{ \angle C = 27^{\circ} }}}\)

\( \huge \underline{\boxed{\sf \red{ \angle D = 153^{\circ} }}}\)

Solution:

Add the ∠A and ∠B and minus it to 180° to know the measure of ∠C. To find the ∠D add only the ∠A and ∠B.

Finding ∠C

\(\large\tt{{180}^{\circ} = \angle A + \angle B + \angle C}\)

\(\large\tt{{180}^{\circ} = {35}^{\circ} + {118}^{\circ} + \angle C }\)

\(\large\tt{{180}^{\circ} = {153}^{\circ} + \angle C }\)

\(\large\tt{{180}^{\circ} - {153}^{\circ} = \angle C }\)

\(\large\tt{{27}^{\circ} = \angle C }\)

\(\large{\boxed{\tt{\angle C = {27}^{\circ}}} }\)

Finding ∠D or ∠ACD

\(\large\tt{ \angle A + \angle B = \angle ACD }\)

\(\large\tt{ {35}^{\circ} + {118}^{\circ} = \angle ACD }\)

\(\large\tt{ {153}^{\circ} = \angle ACD }\)

\(\large{\boxed{\tt{\angle ACD = {153}^{\circ} }}}\)

\( \normalsize\blue{\overline{\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad \ \ \ }}\)

\( \\ \)

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Answer:

1/12 or 0.0833333333333

Step-by-step explanation:

Based on the given information,

only one triangle is possible.

The correct option is C.

It is a triangle with constant angles of 30, 60, and 90. This triangle is always a right triangle, as one of the angles is 90 degrees. Thus, a right-angled triangle is formed by these angles. Additionally, the right angle is equal to the sum of two acute angles, which will have a 1: 2 or 2: 1 ratio.

Given:

The angle measure of B = π/6 = 30°.

a = 20, and b = 10

That means,

m∠A = 2∠B = 2 x 30 = 60°.

Now, there is only one possibility of a triangle, and that triangle is 30-60-90 triangle.

Hence, only one triangle is possible.

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The value of the unknown number b is 1/4.

Substitution is putting a specific value in a given variable.

According to the given question Six more than the product of a number and 4 is equal to 7 and we have to use b for the unknown number.

7 is 6 more than the product of 4 and b which can be numerically expressed as

7 = 6 + 4b...(i)

7 - 6 = 4b.

1 = 4b.

b = 1/4.

To check if it is correct or not we will substitute the numerical value of b.

in eqn (i).

7 = 6 + 4b

7 = 6 + 4×1/4

7 = 6 + 1

7 = 7.

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If the sales department wants to place an order for 253,625 third grade math books for a region. How can the sale manager estimate the number of math books to be sure that there are more then enough is: The manager should carryout survey based on the number of people per class and provide 25,362 books.

Since extra math's  books will be needed after giving out the available math's books.

Hence:

Additional maths books=10%× 253,625

Additional maths books=25,362 books

Based on the above calculation the manager should carryout survey based on the number of people per class and provide them with 25,362 books.

Therefore how can the sale manager estimate the number of math books to be sure that there are more then enough is that the manager should carryout survey based on the number of people per class and provide 25,362 books.

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The simplified version of the expression would be 31-w

The numerical part of the expression given is :

Simplifying using Subtraction operation:

Adding the alphabetical part :

Therefore, the simplified form of the expression is 31-w.

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GCF of 4,8 and 24

is. = 4

Then new expression is

y = 4• (x^2 + 2x + 6)

To write the given equation in logarithmic form, we can use the definition of logarithms. The equation 10^m = w can be rewritten as a logarithm with base 10: log10(w) = m

The general relationship between exponents and logarithms is as follows:

base^(exponent) = result

In logarithmic form, it's written as:

log_base(result) = exponent

For our given equation, 10^m = w, we have:

base = 10

exponent = m

result = w

Applying the general logarithmic relationship, we write:

log10(w) = m

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Answer:

c

Step-by-step explanation: