If you buy a phone for $500 and its value decreases by 50% each year, what is it worth
at the end of 2 years?
O $10
$0
O $125
$250

Answer: [tex]8[/tex] and [tex]8[/tex]

Step-by-step explanation:

Let the numbers be [tex]x[/tex] and [tex]y[/tex].

[tex]x+y=16 \implies y=16-x\\\\xy=64 \longrightarrow x(16-x)=64\\\\16x-x^2 =64\\\\x^2 -16x+64=0\\\\(x-8)^2=0\\\\x=8 \implies y=8[/tex]

The system of equations that models the situation is given as follows:

The system of equations is constructed by linear functions in slope-intercept format, which are explained as follows:

y = mx + b.

In which:

Hence the two functions are given as follows:

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Answer:

  (a)  y = x/3 -1

Step-by-step explanation:

You want the equation of the line graphed showing points (3, 0) and (6, 1).

The slope of the line is its "rise" divided by its "run." Here, the points are 3 units apart horizontally, and 1 unit vertically, with the line going up to the right. That means ...

  slope = rise/run = +1/+3 = 1/3

The slope-intercept form of the equation for a line is ...

  y = mx +b . . . . line with slope m and y-intercept b

The slope of 1/3 means the coefficient of x will be 1/3. There is only one answer choice like that:

  y = x/3 -1

Answer:

Step-by-step explanation:

The place value of the 5 in the number 2.35 x 104 is ten thousand.

In scientific notation, the number 2.35 x 104 represents 2.35 times 10 to the power of 4. The number 10 to the power of 4 is 10,000, so the digit 5 is in the ten thousand place. The ten thousand place has a value of 10,000, so the 5 in 2.35 x 104 has a place value of 10,000.

So, the place value of the 5 in 2.35 x 104 is ten thousand.

The graph of the function is given by the image presented at the end of the answer.

The minimum value on the interval [-2,0] is given as follows:

y = -1 at x = -2.

The maximum value on the interval [-2,0] is given as follows:

y = 1 at x = 1.

The minimum value of a function in an interval is the lowest value of y assumed by the function.

The maximum value of a function in an interval is the lowest value of y assumed by the function.

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Input Variable: Height (h), Output Variable: Temperature (T)

Axes: h (km) | 0 | 1 ,  T (°C) | 10 | 10

Slope: 0 (The temperature does not change with increasing height)

The theory used in this question is the ideal gas law, which states that the pressure, volume, and temperature of an ideal gas are directly proportional.

As the dry air moves upward, it expands and the temperature decreases. This is why the temperature at a height of 1 km is 10°C.

Determine the input and output variables:

The input variable is the height (h) and the output variable is the temperature (T).

Draw and label two axes: On the x-axis, label it "h (km)" and on the y-axis, label it "T (°C)".

Plot and label the two points you were given:

Plot a point at (0, 10) and another point at (1, 10).

Determine the slope of the line between your two points:

The slope of the line between the two points is 0, indicating that the temperature does not change with increasing height.

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The total commission the realtor earns is given by the equation A = $ 9375

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the total commission amount the realtor earns be represented as A

Now , the equation will be

The percentage of commission = 1.25 %

The total amount for the 2 homes = $ 750,000

So , the amount of commission A = percentage of commission x total amount for the 2 homes

Substituting the values in the equation , we get

The amount of commission A = ( 1.25 / 100 ) x 750,000

On simplifying the equation , we get

The amount of commission A = 0.0125 x 750,000

The amount of commission A = $ 9375

Hence , the amount of commission is $ 9375

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The total surface area painted black = 90.5 square feet to the nearest tenth.

A cone is a three-dimensional geometric form with a flat base and a smooth, tapering apex or vertex. A cone is made up of a collection of line segments, half-lines, or lines that link the base's points to the apex, which is a common point on a plane that does not include the base.

Given:

Three large cones hang from the ceiling in an office building in front of a bank of windows.

The height of each cone is 12 feet, and the circumference of the base of each cone is 8π feet.

The base and 40% of the lateral surface of each cone is painted red, and the rest of each cone is painted black.

Circumference of the base of the cone = 8π feet.

2πr = 8π

πr = 4π

The surface area of the cone = πr x height

The surface area of the cone = 12 x 4π

The surface area of the cone = 48π.

The total surface area painted black = 60% of 48π.

The total surface area painted black = 90.5 square feet to the nearest tenth.

Therefore, the result is 90.5 square feet to the nearest tenth.

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Answer:

y= -(x)-2

Step-by-step explanation:

if you want to find  an equation passing through the point that is perpendicular to an y=mx +c type equation. all you have to do is to change sign of the gradient. it's simple.

Sorry for the inconvenience.

Answer:

(x - 6)² + y² = 36 and x2 + (y + 6)2 = 36.

Step-by-step explanation:

The equation of a circle with center (h, k) and radius r is given by:

(x - h)² + (y - k)² = r².

So, for a circle with a diameter of 12 units, the radius is 6 units.

For the center of the circle to lie on the y-axis, the x-coordinate, h, is 0.

So, the equation for a circle with center (0, k) and radius 6 units is:

(x - 0)² + (y - k)² = 6²

x² + (y - k)² = 36

Two possible values for the y-coordinate of the center, k, that would give us two different circles are k = 6 and k = -6.

So, the two equations are:

x² + (y - 6)² = 36

and

x² + (y + 6)² = 36.

By solving a system of equations, wewill see that they sold 325hamburgers.

Let's define the variables:

h = number of hamburgers.

c = number of cheeseburgers.

We know that the total combined number is 588, then we can write:

h +c = 588

And there were 62 fewer cheeseburers than hamburgers, then:

c = h - 62

Now we have a system of equations:

h +c = 588

c = h - 62

c is already isolated on the second equation, so we can replace that on the first equation to get:

h + (h - 62) = 588

2h = 588 + 62

2h = 650

h = 650/2 = 325

They sold 325 hamburgers.

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Answer:

1:20

Step-by-step explanation:

Let's review the ratio of meters:centimeters

1:100 (1 meter to 100 centimeters)

Thus, our answer will be in meters:centimeters

Let's plug this in

5:100

Let's simplify by dividing both sides by 5, now!

5 / 5 = 1

100 / 5 = 20

So, our final ratio is 1:20

The size of angle ACB to the nearest degree is 88 degree.

Construction Steps:

Create a line segment BC with the property AC = 4 cm.

Draw two arcs that meet at point A by using B as the centre and a radius of 4 cm, and C as the centre and a radius of 7 cm.

Join AB and AC now. Consequently, the necessary triangle is ABC.

With the use of a compass, draw a line segment AB = 7 cm from A, cutting an arc AC = 4 cm.

Cut an arc of 3 cm from point B.

Embrace BC and AC

Triangle with  angle ABC is necessary.

< ACB = 88 degree

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35?

I just subtracted 39 from 52 and i got 14 so i added 13 to 22 and i got 35 so i assume thats it

The maximum amount of weight, a human being could lift is  0.0002 kilograms.

Since an average ant can lift a maximum of 50 times its own body weight, and it weighs 4 milligrams,

The maximum weight it can lift is

50 * 4 milligrams = 200 milligrams.

To convert milligrams to kilograms, we divide by 10^6:

200 milligrams / 10^6 = 0.0002 kilograms

So, the maximum amount of weight a human being could lift if it could lift as much as an average ant is 0.0002 kilograms.

Therefore, the answer is 0.0002 kilograms or 0.2 grams

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The solution to the equation -1/5 = -2y + 8/5 is y = 9/10

Given the equation in the question;

-1/5 = -2y + 8/5

First, rewrite the equation as;

-2y + 8/5 = -1/5

Move all terms not containing y to the right side of the equation

-2y + 8/5 - 8/5 = -1/5 - 8/5

-2y = -1/5 - 8/5

Add  -1/5 and -8/5

-2y = ( -1 - 8) / 5

-2y = -9 / 5

Divide both sides by -2

-2y / -2 = -9/5 ÷ -2

y = -9/5 × -1/2

y = 9/10

Therefore, the value of y is 9/10.

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The required number of ice blocks that fit in the storage box is 80 ice blocks.

The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.

The volume of the storage box is,
= 7.5 feet × 6 feet × 6 feet
= 270 cubic feet.

Each ice block has a volume,

= 1.5 feet × 1.5 feet × 1.5 feet
= 3.375 cubic feet.

Therefore, the number of ice blocks that fit in the storage box is,
= 270 / 3.375
= 80 ice blocks.

Thus, the required number of ice blocks that fit in the storage box is 80 ice blocks.

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The correct statement regarding the continuity of the function is given as follows:

All three conditions for continuity are true, so f(x) is continuous.

A function f(x) is continuous at x = a if it is defined at x = a, and the lateral limits are equal, that is:

[tex]\lim_{x \rightarrow a^-} f(x) = \lim_{x \rightarrow a^+} f(x) = f(a)[/tex]

For this problem, we must look at the turning point at x = 3, hence:

Hence all conditions are satisfied and the correct option is given by the fourth option.

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The Angle C is 83.2°

The Law of Cosines, also known as the Cosine Formula, is a mathematical relationship that relates the lengths of the sides of a triangle to the cosine of one of its angles. The law states that in a triangle ABC with sides a, b, and c opposite to angles A, B, and C, respectively, the following equation holds:

c^2 = a^2 + b^2 - 2ab cos(C)

where "cos" represents the cosine function. The Law of Cosines can be used to find missing sides or angles in a triangle when given sufficient information. It is widely used in geometry, trigonometry, and engineering. The Law of Cosines is an extension of the Pythagorean theorem and can be used when the triangle is not a right triangle. It is a powerful tool for solving a variety of problems in a wide range of fields.

To find the angle C in triangle ABC, you can use the Law of Cosines. The Law of Cosines states that in a triangle ABC with sides a, b, and c and opposite angles A, B, and C, the following equation holds:

c² = a² + b² - 2abcos(C)

In this case, a = 20 cm, b = 29 cm, and c = 24 cm, and we are given that angle BAC = 82 degrees. Using this information, we can calculate cos(C) as follows:

cos(C) = (a² + b² - c²)/(2ab) = (20² + 29² - 24²)/(2×20×29) = 0.2618

Finally, we can use the inverse cosine function (arccos) to find angle C:

C = arccos(cos(C)) = arccos(0.2618) = 83.2 degrees (rounded to one decimal place).

So, angle C in triangle ABC is approximately 83.2 degrees.

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The amount invested in savings with annual interest rate of 6% and 10% is $398200 and $199100.

Simple Interest (S.I.) is a way for figuring out how much interest will accrue on a specific principal sum of money at a certain rate of interest. For instance, if someone borrows Rs. 5000 at a rate of 10 p.a. for two years, they will pay S.I. on the borrowed money for those two years.

Let S be his savings.

He divided S into x that goes at 6% and y at 10%

As he put twice as much at the lower-yielding one, x = 2y.....(1)

Simple interest is given by: Amount x interest x time

Thus,

SI₁ = x . 0.06 . 1 = 0.06x

S I₂ = y. 0.10 . 1 = 0.10y

As x = 2y, I₁ = = 0.06 . 2y = 0.12y

As we know that the annual interest was $3982

SI₁ + SI₂ = 3982

0.12y + 0.10y = 3982

0.22y = 3982

y = 3982/0.22

y = 18100

As x = 2y, x = 36200

Hence, the amount invested is $36200 and $18100.

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The required cost of the construction of a 4.5-inch tower is $114.75.

Algebraic word problems are defined as questions that require translating sentences to equations, and thereafter solving those equations. and a single variable.

The parameters given are;

The cost of construction = $25.50 per inch.

The cost of 4.5 inches of construction = 25.50 * 4.5

= $114.75.

We conclude that, the figure above is the amount to fund 4.6 inhces

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Complete question is;

A ratio station collects donations for a new board cast tower. The cost of construction is $25.50 per inch. How much does it cost to fund 4.5 inches of the construction?

Answer: 2 1/2 or 2.5

Step-by-step explanation: 3/1 * 5/6= 15/6

divide 15/6 which equals 2.5 or 2 1/2

The amount of sand that must be added to form a new mixture that is 80% sand by volume will be 90 cubic feet.

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

The thickness and strength of not entirely set in stone by the proportion of concrete and total. Assume that a project worker has 450 cubic feet of a dry substantial blend that is 60 % sand by volume.

The amount of sand that must be added to form a new mixture that is 80% sand by volume is given as,

⇒ 0.80 x 450 - 0.60 x 450

⇒ 360 - 270

⇒ 90 cubic feet

The amount of sand that must be added to form a new mixture that is 80% sand by volume will be 90 cubic feet.

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Answer:

(-infinity,-1)U(-1,infinity)

Step-by-step explanation:

plug in the number where the piecewise function changes which is -1 and 1

(-1)^2-(-1)-2 =0

(-1)=-1

These aren't equal so the function  is discontinuous at x = -1 because of a jump

(1) = 1

-2(1) + 3 = 1

These are equal so the function is continuous at x = 1

So from negative infinity to -1 the function is continuous and from -1 to infinity

(-infinity,-1)U(-1,infinity)

Answer: second blank for x= 2, fifth blank for x= 9. First blank for y= 0, third blank for y= 4, fourth blank for y= 36.

Step-by-step explanation:

plug in x and y values to equation and solve.

The required range of the given data set is 42 and defined for the interval (14, 56).

Statistics is the study of mathematics that deals with relations between comprehensive data.

Range: The range is the difference between the largest and smallest values in a set of data.

Here,
The largest value is 56 and the smallest is 14, so the range is given as,
= 56 - 14 = 42.

Interquartile range (IQR): The IQR is the range of the middle 50% of values in a data set. To calculate the IQR, we first need to find the quartiles of the data set.

Quartile deviation (QD): The QD is also known as the semi-interquartile range, and is half the interquartile range (IQR).

Mean Absolute Deviation (MAD): The MAD is a measure of variability that is calculated by finding the average of the absolute deviations of each data point from the mean.

Population Variance: The population variance is a measure of how much the data points in a population deviate from the mean.

Population Standard Deviation: The population standard deviation is the square root of the population variance, and is a measure of how spread out the data points in a population are.

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Note: The calculation of IQR, QD, MAD, population variance, and population standard deviation would require more steps, but these calculations are beyond the scope of this answer.

The equation that represents the total amount the fan paid is

32 x (P + 25) = 3,232.

The amount spent by the friend is $909.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 4 = 8 is an equation.

We have,

Amount spend for 32 tickets = $3,232

Cost of parking = $25

Let p represent the amount the fan paid for each ticket.

The cost of each ticket.

32 x (P + 25) = 3,232

Solve for P.

32 x (P + 25) = 3,232

P + 25 = 3,232/32

P = 101 - 25

P = $76

Now,

The amount spent by the friend.

= 9 x (76 + 25)

= 9 x 101

= $909

Thus,

32 x (P + 25) = 3,232 represents the total amount the fan paid is

The amount spent by the friend is $909.

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Answer:

oaxaca

oacaxa

xaoaca

xacaoa

caoaxa

caxaoa

aoaxac

axaoac

aoacax

acaoax

axacao

acaxao

aoxaca

aocaxa

acoaxa

acxaoa

axoaca

axcaoa

aoaxca

axaoca

aoacxa

axacoa

acaoxa

acaxoa

Looks like 24 to me.

6 arrangements of “oa” “xa” and “ca”

those same 6 reversed

those same 6 with the first pair reversed

those same 6 with the first two pairs reversed.

reversing the last pair or the last two pairs only is illegal, so this is comprehensive.

Step-by-step explanation: