PLEASE HELP!!!! ILL GIVE YOU 10 POINTS IF YOUR ANSWER IS CORRECT!!!!

How do find the value of "y = x - 4 ; y = -20"?

Answer:

$50

Step-by-step explanation:

The discount percentage was 36%. This means that $32 is 64% of the original cost.

Divide $32 by 64%: (32/.64= 50)

The original cost was $50.

Answer:

You don't need to create 3 posts for a single question. I already answered it in your most recent one.

The time spent higher than 26 meters above the ground is 0.42 minutes. Answer: 0.42

A Ferris wheel is 30 meters in diameter and boarded from a platform that is 4 meters above the ground.

The six o'clock position on the Ferris wheel is level with the loading platform.

The wheel completes 1 full revolution in 2 minutes.

We have to find how many minutes of the ride are spent higher than 26 meters above the ground.

So, let's start with some given data,Consider the height of a person at the six o'clock position = 4 meters

So, the height of a person at the highest point = 4 + 15 = 19 meters (since the diameter is 30 meters, the radius will be 15 meters)

Also, the height of a person at the lowest point = 4 - 15 = -11 meters

Therefore, the Ferris wheel completes one cycle from the lowest point to the highest point and back to the lowest point.

So, the total distance travelled will be = 19 + 11 = 30 meters.

Also, we are given that the wheel completes 1 full revolution in 2 minutes.

We need to calculate the time spent higher than 26 meters above the ground.

So, the angle between the 6 o'clock position and 2 o'clock position will be equal to the angle between the 6 o'clock position and the highest point.

This angle can be calculated as follows:

Angle = Distance travelled by the Ferris wheel / Circumference of the Ferris wheel * 360 degrees

Angle = 30 / (pi * 30) * 360 degrees

Angle = 360 degrees / pi

= 114.59 degrees

So, the total angle between the 6 o'clock position and the highest point is 114.59 degrees.

Now, we need to find out how much time is spent at an angle greater than 114.59 degrees.

This can be calculated as follows:

Time = (Angle greater than 114.59 degrees / Total angle of the Ferris wheel) * Total time taken

Time = (180 - 114.59) / 360 * 2 minutes

Time = 0.42 minutes

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Answer:

B. Distributive property

Step-by-step explanation:

Because (2 times 7) times 3 is the same as 2 times (7 times 3)

The numbers are just put different, and makes a different answer.

So, just because the answers are the same, doesn't make them commutative property,

Answer:

x=17

Step-by-step explanation:

See attached.

Because of the Triangle Proportionality Theorem,

24: (2x-4)+6

20: 2x-4

Cross multiply these two ratios

48x-96 = 40x-80+120

Isolate variable: 8x = 96-80+120

Solve: 8x = 136

x=17

The function can be defined as  price = 6x

It will cost $150 to buy 25 reams of paper.

The domain of the function is all non-negative real numbers, since the number of reams bought cannot be negative.

The range of the function is all non-negative real numbers, since the price cannot be negative.

Fir 25 items, price = 6(25) = $150

It will cost $150 to buy 25 reams of paper.

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Answer:

slope = \(\frac{6}{5}\)

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)

with (x₁, y₁ ) = (2, - 5) and (x₂, y₂ ) = (7, 1)

m = \(\frac{1+5}{7-2}\) = \(\frac{6}{5}\)

The required slope of the line passes through the points (2, -5) and (7, 1) is m = 6/5

The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.

here,

The slope of a line passing through two points (x1, y1) and (x2, y2) is given by the formula:

m = (y2 - y1) / (x2 - x1)

Let's apply this formula to the given points:

m = (1 - (-5)) / (7 - 2)

m = 6 / 5

Thus, the required slope of the line passes through the points (2, -5) and (7, 1).

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Answer:

The average cost is 4400

Step-by-step explanation:

c=800+40x

where x=number of items

c=800+4x;when x=90

c=800+40(90)

c=800+3600

c=4400

Answer:

4400

Step-by-step explanation:

Answer:

The surface area of a solid object is a measure of the total area that the surface of the object occupies.

Step-by-step explanation:

The total area of the surface of a three-dimensional object. Example: the surface area of a cube is the area of all 6 faces added together

The inequality that represents the line in the figure will be y > - (2/3) x + 3.

Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.

From the figure, the points of the line are (0, 3) and (3, 1). And the region above the line is a consideration. Then the equation of the line is given as,

(y - 3) > [(3 - 1) / (0 - 3)](x - 0)

Simplify the equation, then we have

(y - 3) > [(3 - 1) / (0 - 3)](x - 0)

(y - 3) > - (2/3)x

y > - (2/3) x + 3

The disparity that addresses the line in the figure will be y > - (2/3) x + 3.

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The equation of a circle that is congruent to circle C and is centered at point P is (x - 5)² + (y - 1)² = 5².

In Geometry, the standard form of the equation of a circle is modeled by this mathematical equation;

(x - h)² + (y - k)² = r²

Where:

Based on the information provided, we have the following parameters for the equation of this circle:

By substituting the given parameters, we have:

(x - h)² + (y - k)² = r²

(x - 5)² + (y - 1)² = 5²

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Answer:

The minimum sample size needed is \(n = (\frac{1.96\sqrt{\sigma}}{4})^2\). If n is a decimal number, it is rounded up to the next integer. \(\sigma\) is the standard deviation of the population.

Step-by-step explanation:

We have that to find our \(\alpha\) level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\(\alpha = \frac{1 - 0.9}{2} = 0.05\)

Now, we have to find z in the Z-table as such z has a p-value of \(1 - \alpha\).

That is z with a pvalue of \(1 - 0.05 = 0.95\), so Z = 1.645.

Now, find the margin of error M as such

\(M = z\frac{\sigma}{\sqrt{n}}\)

In which \(\sigma\) is the standard deviation of the population and n is the size of the sample.

How large a sample must she select if she desires to be 90% confident that her estimate is within 4 ounces of the true mean?

A sample of n is needed, and n is found when M = 4. So

\(M = z\frac{\sigma}{\sqrt{n}}\)

\(4 = 1.96\frac{\sigma}{\sqrt{n}}\)

\(4\sqrt{n} = 1.96\sqrt{\sigma}\)

\(\sqrt{n} = \frac{1.96\sqrt{\sigma}}{4}\)

\((\sqrt{n})^2 = (\frac{1.96\sqrt{\sigma}}{4})^2\)

\(n = (\frac{1.96\sqrt{\sigma}}{4})^2\)

The minimum sample size needed is \(n = (\frac{1.96\sqrt{\sigma}}{4})^2\). If n is a decimal number, it is rounded up to the next integer. \(\sigma\) is the standard deviation of the population.

When golden eagles dive, they can achieve speeds up to 150 miles per hour then the equation t = 2d/5 will represents the amount of time. So option A is correct.

We know that the speed of the golden eagle in miles per minute is:

v = 150 miles/hour ÷ 60 minutes/hour = 2.5 miles/minute

The time t it takes for the golden eagle to dive a distance d in miles is given by the formula:

t = d/v

Substituting the value of v, we get:

t = d/2.5

Therefore, the equation that represents the amount of time t in minutes it takes a golden eagle to dive the distance d in miles is:

a. t = 2d/5

Therefore, option A is correct.

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Answer:

it is not a function because there are 2 y- values for 1 x value.

Step-by-step explanation:

it doesn't pass the vertical line test (put hand up and down if it hits 2 points that share x value but different y value its not a real function.

We can see here that simplifying, we have:

a. h²

b. h³

c. 1/(1 + h)

d. 3h

e. 3h/(64 + 4h)

f. h/(4h + 2h²)

Simplification is the process of reducing something to its most basic form or removing any unnecessary complexity.

In mathematics, simplification is often used to make equations or expressions easier to work with, solve, or understand. This can involve combining like terms, cancelling out common factors, or using rules of exponents and logarithms to simplify an expression.

We see here that the below gives us the workings:

a. (5 + h)³ - 125/ h = h³ +  5³ - 125/h = h²

b. \(\frac{(3 + h)^{4} - 81 }{h} =\frac{ 3^{4} + h^{4} - 81}{h} = \frac{ h^{4} + 81 - 81}{h} = h^{3}\)

c. (1/1+h) - 1/h = 1/1+h - 1 ÷ h = 1/1+h

d. 3(1 + h)² -3/h = 3h² + 3 - 3/h = 3h²/h = 3h

e. [(3/4+h) - 3/4]/4 = (3/4+h - 3/4) ÷ 4 = 3h/64+4h

f. (-1 + 2 + h) + 1/2 ÷ h = h/4 + 2h × 1/h = h/4h + 2h²

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Solution.

Let us look at the meaning of each rule

Commutative property of addition: says changing the order of addends does not change the sum. For example, 4 + 2 = 2 + 4

Associative property of addition says changing the grouping of addends does not change the sum. For example, ( 2 + 3 ) + 4 = 2 + ( 3 + 4 )

While

Identity property of addition says that the sum of 0 and any number is that number. Here's an example: 0 + 4 = 4

0 + 4 = 4

Given 7 + [5+ (6)] = 7 + [(6) +5], we can see that the grouping of addends was chaneged and yet the sum does not change, hence this illustrate Associative property of addition

The coorect option is B. Associative property of addition

the answer is b

Step-by-step explanation:

Answer:

1015

Step-by-step explanation:

29 es un número primo.

Por tanto:

29*35 = 1015

El mínimo común múltiplo de 29 y 35 es:

1015

Answer:

4 years

Step-by-step explanation:

Each year the guitar is worth 80% of its previous worth

1875 ( .80)^n   = 768     where n = years

n=4

The answer for it is diagram B because it does not cross or have parallel lines

The equivalent expressions to \(24^{-7}\) are given as follows:

C. \(\left(\frac{1}{24^{-7}}\right)^{-1}\)

F. \((24^3 \times 24^4)^{-1}\)

Equivalent expressions are expressions that have the same value for all possible values of the variables. In other words, equivalent expressions are different ways of writing the same mathematical idea.

The exponent in the denominator can be moved to the numerator with the changed signal, hence:

\(\left(\frac{1}{24^{-7}}\right)^{-1} = (24^7)^{-1}\)

Applying the power of power rule, we multiply the powers, hence:

\((24^7)^{-1} = 24^{-7}\)

When two terms with the same base and different exponents are multiplied, we add the bases and keep the exponents, hence:

\((24^3 \times 24^4)^{-1} = (24^7)^{-1} = 24^{-7}\)

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Answer 19

Step-by-step explanation:

i tried my best in bath but not sure still 5 and a half+9+4=19 but round it to 19

Answer:

Read below c:

Step-by-step explanation:

Both are rectangular prisms and they have similar dimensions. They are different because one is visibly larger then the other.

hope it helps c:

The numerical expression to model the number of miles Masha runs, walks, or jogs is 14.

Mathematical operations like addition, subtraction, multiplication, and division can be used to mix integers and numbers to create a numerical expression.

The rule should state something along the lines of: "When simplifying, parentheses must be simplified first, followed by all exponents, all multiplication, and ultimately, all addition."

Based on the given conditions, formulate: 2 + 1 + 11

Calculate the sum or difference: 3 + 11

Calculate the sum or difference: 14

Therefore, the numerical expression to model the number of miles Masha runs, walks, or jogs is 14.

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The length of CD will be 13 and the perimeter of ABCD is 52.

The term length refers to the number of terms in a mathematical expression or sequence. For example, the term length of a polynomial is the number of terms in the polynomial. In the context of calculus, the term length may refer to the number of terms in a series.

Perimeter is the total length of the boundary or the outer edge of a two-dimensional shape, such as a square, rectangle, triangle, or circle. It is the distance around the shape and is measured in units such as meters, centimeters, inches, or feet, depending on the system of measurement being used. The calculation of the perimeter involves adding up the lengths of all sides or arcs that form the boundary of the shape.

CA= 10

BD= 24

Therefore CM= ½(CA)= 5

MD= ½(BD)=12

As in rhombus diagonals bisect each other at right angles.

So, we apply Pythagoras theorem to find CD

CD2 =CM2 +MD2

CD2 = 169

CD= 13

Therefore perimeter of ABCD is 4*13=52 as all sides are equal in rhombus.

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Answer:

Given the information you provided, we can model cellular phone usage over time with an exponential growth model. An exponential growth model follows the equation:

`y = a * b^(x - h) + k`

where:

- `y` is the quantity you're interested in (cell phone usage),

- `a` is the initial quantity (34 million in 1995),

- `b` is the growth factor (1.22, representing 22% growth per year),

- `x` is the time (the year),

- `h` is the time at which the initial quantity `a` is given (1995), and

- `k` is the vertical shift of the graph (0 in this case, as we're assuming growth starts from the initial quantity).

So, our specific model becomes:

`y = 34 * 1.22^(x - 1995)`

To find the cellular usage in 2003, we plug 2003 in for x:

`y = 34 * 1.22^(2003 - 1995)`

Calculating this out will give us the cellular usage in 2003.

Let's calculate this:

`y = 34 * 1.22^(2003 - 1995)`

So,

`y = 34 * 1.22^8`

Calculating the above expression gives us:

`y ≈ 97.97` million.

So, the cellular phone usage in 2003, according to this model, is approximately 98 million.

Answer:

I think its (1,-1) when you rotate it 270 degrees your supposed to switch x and y and make x negative y positive

Answer:

Treatment for HIV/AIDS involves taking highly effective medicines called antiretroviral therapy (ART) that work to control the virus [1][2]. ART involves taking a combination of HIV medicines (called an HIV regimen) to suppress the virus and stop the progression of the disease [1]. The goal of treatment is to reduce the amount of HIV in the body and keep it at a low, undetectable level to help prevent further damage to the immune system and reduce the risk of transmitting HIV to others.