Math!!! 100 points
circle all graphs that show a proportional relationship

Answer:

24%

Step-by-step explanation:

It’s easy all u have to do is add the 95% and 15%

And when u get the answer u add it with 1.10$ and boom u subtract the number and u get 24%.

Answer: $1.80 and $11.40

Step-by-step explanation:

We know that Chris was short on cash by $1.20, but we need to create an equivalent percentage.

95% + 15% = 110% (how much does it cost)

110% - 110% (how much he had) = 10% (amount short) = $1.20

10% = $1.20

100% (how much he had) = $12.00

Mouse = 95% of $12.00 (how much he had) = $11.40

Mouse pad = 15% of $12.00 (how much he had) = $1.80

Check your work:

$1.80 (Mouse pad) + $11.40 (Mouse) = $13.20

$13.20 - $12.00 = $1.20 (amount short)

We were correct!

Final Answer: $1.80 and $11.40

The hypotenuse of the right triangle has a length of 19.24 cm.

For a right triangle whose catheti are A and B, and the hypotenuse is C, then the Pythagorean's theorem says that:

A^2 + B^2 = C^2

The lengths of the legs are:

A = 9cm

B = 17cm

Then the length of the hypoten use is given by:

(9cm)^2 + (17cm)^2 = C^2

√((9cm)^2 + (17cm)^2) = C

19.24 cm = C

The length of the hypotenuse is 19.24 cm.

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Answer:

Step-by-step explanation:

-150

Answer: -15x + 30

Step-by-step explanation:

-3(5x) = -15x (positive x negative = negative)

-3(-10) = 30 (negative x (negative = positive)

(same symbols = positive)

(Different symbols = negative)

Mu X is a statistical concept used to measure the difference between two means.

It is calculated by subtracting the mean of one group from the mean of another group. Mu X is often used to compare the means of two or more groups, or to compare the means of two subgroups within a group. It can also be used to measure the relative size of a group's mean compared to the grand mean or the size of a group's mean compared to the mean of another group. Mu X is a useful tool for distinguishing between true and false differences between two means. It is also useful for understanding the relative importance of different factors in a study. Mu X is sometimes referred to as the difference in means or the mean difference, and it is an important concept in inferential statistics.

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From trigonometric ratios, the value of x and y are 11 [tex]\sqrt{3}[/tex] and 11, respectively.

A triangle is classified as a right triangle when it presents one of your angles equal to 90º.  The greatest side of a right triangle is called the hypotenuse. And, the other two sides are called legs.

The math tools applied for finding angles or sides in a right triangle are the trigonometric ratios or the Pythagorean Theorem.

The Pythagorean Theorem says: (hypotenuse)²= (leg1)²+(leg2)² . And the main trigonometric ratios are: sin (x) ,  cos  (x) and tan  (x) , where:

sin (x) =[tex]\frac{opposite\ leg}{hypotenuse}[/tex]

cos(x)=[tex]\frac{adjacent\ leg}{hypotenuse}[/tex]

tan (x) = [tex]\frac{sin (x)}{cos(s)}= \frac{opposite\ leg}{adjacent\ leg}[/tex]

Therefore, for finding x you can apply the trigonometric ratio sin (x). See below:

sin (60) =[tex]\frac{opposite\ leg}{hypotenuse}=\frac{x}{22}[/tex], knowing that  sin (60)=[tex]\frac{\sqrt{3} }{2}[/tex] you have

[tex]\frac{\sqrt{3} }{2}=\frac{x}{22} \\ \\ 2x=22\sqrt{3} \\ \\ x=11\sqrt{3}[/tex]

For finding y you can apply the trigonometric ratio tan (x). See below:

tan (60) =[tex]\frac{opposite\ leg}{adjacent\ leg}=\frac{x}{y}[/tex], knowing that  tan (60)=[tex]\sqrt{3}[/tex] and x=[tex]11\sqrt{3}[/tex], you have

[tex]\sqrt{3} =\frac{x}{y} \\ \\ \sqrt{3} =\frac{11\sqrt{3} }{y}\\ \\ y\sqrt{3} =11\sqrt{3} \\ \\ y=11[/tex]

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The factor of the expression x² + 3x - 4 will be (x + 4) and (x - 1). And the variable 'x' represents the length of the rectangle.

The area of the rectangle is the multiplication of the two different sides of the rectangle. Then the rectangle's area will be

Area of the rectangle = L × W square units

Let 'x' be the length of the rectangle. Then the width will be (x - 5). Then the factors of the expression is given as,

A = x² + 3x - 4

A = x² + 4x - x - 4

A = x(x + 4) - 1(x + 4)

A = (x + 4) · (x - 1)

The factors of the expression x² + 3x - 4 will be (x + 4) and (x - 1). And the variable 'x' represents the length of the rectangle.

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The required description of the expression -50 ÷ 5 is It can be described as dividing -50 by 5 to find the quotient.

A number system is described as a technique of composing to represent digits.

The expression -50 ÷ 5 represents a mathematical calculation. It can be described as dividing -50 by 5 to find the quotient. In this case, the result of the calculation would be -10.

This expression could be used in various scenarios, such as in finance to calculate the cost of an item, in science to determine measurements, or in everyday life to divide a quantity into equal parts. However, without additional context, it's difficult to provide a complete description of the world that fits this expression.

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Answer:

[tex]\textsf{C)} \quad \dfrac{23}{60}[/tex]

Step-by-step explanation:

The odd number outcomes are 1, 3 and 5.

The probability for rolling each of the odd numbers is the frequency of the outcome divided by the total number of rolls.

[tex]\implies \sf P(x=1)=\dfrac{8}{60}[/tex]

[tex]\implies \sf P(x=3)=\dfrac{6}{60}[/tex]

[tex]\implies \sf P(x=5)=\dfrac{9}{60}[/tex]

Therefore, the experimental probability that the number rolled was odd is:

[tex]\begin{aligned}\sf P(x\;is\;odd)&=\sf P(x=1)\;or\;P(x=3)\;or\;P(x=5)\\\\&=\sf \dfrac{8}{60}+\dfrac{6}{60}+\dfrac{9}{60}\\\\&=\sf \dfrac{8+6+9}{60}\\\\&=\sf \dfrac{23}{60}\end{aligned}[/tex]

Answer:

[tex]12xy-20xz[/tex]

Step-by-step explanation:

The graph of the slope-intercept form y = -x + 2 is a linear graph with the slope = -1, and the y-intercept = 2

The slope intercept form is an approach for figuring out the straight line of a linear equation on the coordinate plane. We need to have the slope of the line and the y-intercept where the line crosses the y-axis in order to use the slope-intercept formula.

The slope-intercept form can be expressed by using the formula:

y = mx + b;

where,

Given that:
y = -x + 2

The graph of the linear equation  (y) means that the slope = - 1, and the y-intercept = 2.

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The probability of people in the survey who likes dogs is given by the equation P ( D ) = 26 %

The probability that an event will occur is measured by the ratio of favorable examples to the total number of situations possible

Probability = number of desirable outcomes / total number of possible outcomes

The value of probability lies between 0 and 1

Given data ,

Let the probability of people who likes dogs be represented as P ( D )

Now , the equation will be

The probability of people who likes cats P ( C ) = 4 %

The probability of people who likes cats and dogs = P ( C ∩ D ) = 63 %

The probability of people who likes dogs P ( D ) = 26 %

The probability of people who doesn't like cats or dogs 1 - P ( C∪D ) = 7 %

Therefore , the value of P ( D ) = 26%

Hence , probability of people in the survey who likes dogs is 26 %

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By writing this program, you will gain a better understanding of how this process works and how databases are used in real-world applications.

Here you will write a program that takes two inputs: the current price of a house and the price of the same house from last month. These inputs should be integers. The program will then use these inputs to produce a summary of the house price information.

The first part of the summary will simply list the current price of the house. This information is stored in the database and is retrieved by the program when it starts.

The next part of the summary will be the change in the house price since last month. This information is also stored in the database and is calculated by subtracting the price from last month from the current price.

Finally, the program will output the estimated monthly mortgage payment for the house. This is calculated by multiplying the current price of the house by 0.051 and then dividing the result by 12. This information is also stored in the database and is retrieved by the program when it starts.

In conclusion, websites like Zillow use databases to gather and store information about house prices, and they use that information to create summaries for their readers.

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The height of a cone is equal to 1.91 feet.

Mathematically, the volume of a cone can be calculated by using this formula:

Volume of a cone, V = 1/3 × πr²h

Making "h" the subject of formula, we have:

Height, h =3V/(πr²)

Substituting the given parameters into the height of a cone formula, we have;

Height, h =3(18)/(3.142 × 3²)

Height, h = 54/(28.278)

Height, h = 1.91 feet.

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Answer: 40 fluid ounces is approximately equal to 1182.94 milliliters.

Step-by-step explanation:

A fluid ounce (oz) is a unit of volume used in the United States and some other countries, while milliliters (ml) are used in the metric system. To convert ounces to milliliters, we can use the conversion factor of 29.5735 ml per fluid ounce.

So, 40 fluid ounces is equal to:

40 oz * 29.5735 ml/oz = 1182.94 ml

Therefore, 40 fluid ounces is approximately equal to 1182.94 milliliters.

If the length of OB was 3/4, then the length of OB' after dilation is; Option B: 3 units.

Dilation of an object simply means enlarging or shrinking the object by a scale factor.

We are told that Triangle ABC was dilated to Triangle A'B'C' using the rule D₀,₄. What this means is that it was enlarged by a scale factor of 4 with point O as the centre of dilation.

Now, if the length of OB is 3/4, it means that the new dilated length is gotten from;

                    Scale factor = new dilated length OB'/(3/4)

                    New dilated length OB' = (3/4) × 4

                    New dilated length OB' = 3 units

The question is incomplete. The complete question:

"Triangle ABC was dilated using the rule DO,4. Triangle A'B'C' is the result of the dilation. Point O is the centre of dilation. Triangle A B C is dilated to create triangle A prime B prime C prime. The length of O B is three-fourths. What is OB'?"

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linear  function would best fit the data because as x increases, the y values ​​change values by 4518. The slope of this function is approximately 4518

What is a linear equation?

A linear equation is an equation in which each term has at max one degree. Linear equations in variables x and y can be written in the form

y = mx + c

Linear equation with two variables, when graphed on the cartesian plane with axes of those variables, give a straight line.

linear  function would best fit the data because as x increases, the y values ​​change values by 4518.

The slope of this  function is approximately 4518

Slope = change in y values /  change in x values

         =( 27520.99-23002.99)/(2-1)

         = 4518/1

        = 4518

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Answer:

v = 1.165

Step-by-step explanation:

To find the value of v in the equation 0.4 = 0.167 + 0.2v, we can isolate v by subtracting 0.167 from both sides:0.4 - 0.167 = 0.2v0.233 = 0.2vNext, we can divide both sides by 0.2 to find the value of v:0.233 / 0.2 = 0.2v / 0.2v = 0.233 / 0.2v = 1.165So the value of v is 1.165.In conclusion, by subtracting 0.167 from both sides of the equation and dividing both sides by 0.2, we found that the value of v is 1.165.

Answer: The value of v that satisfies the equation 0.4 = 0.167 + 0.2v is 1.165.

Step-by-step explanation:

To find the value of v in the equation 0.4 = 0.167 + 0.2v, we can isolate v by subtracting 0.167 from both sides:

0.4 - 0.167 = 0.2v

0.233 = 0.2v

Next, we can divide both sides by 0.2 to solve for v:

0.233 / 0.2 = 0.2v / 0.2

v = 1.165

So, the value of v that satisfies the equation 0.4 = 0.167 + 0.2v is 1.165.

Answer:

b = -0.5

Step-by-step explanation:

−3b + 2.5 = 4

-3b = 1.5

b = -0.5

Let's check

-3(-0.5) + 2.5 = 4

1.5 + 2.5 = 4

4 = 4

So, b = -0.5 is the correct answer.

Answer:

Step-by-step explanation:

The first step is to find the slope of the tangent line. To do that, we need to find the derivative of f(x):

f(x) = sin(x) + 2cos(x)

f'(x) = cos(x) - 2sin(x)

Now we can find the slope of the tangent line at x=0 by plugging in x=0 into f'(x):

f'(0) = cos(0) - 2sin(0) = 1

Therefore, the slope of the tangent line at x=0 is 1.

Next, we need to find the y-coordinate of the point on the graph where x=0. To do that, we simply plug in x=0 into f(x):

f(0) = sin(0) + 2cos(0) = 2

Therefore, the point on the graph where x=0 is (0, 2).

Now we can use the point-slope form of the equation of a line to find the equation of the tangent line:

y - y1 = m(x - x1)

where m is the slope and (x1, y1) is the point on the line. Plugging in m=1 and (x1, y1) = (0, 2), we get:

y - 2 = 1(x - 0)

Simplifying, we get:

y = x + 2

Therefore, the equation of the tangent line is y = x + 2.

Answer:

The equation of the tangent line at x = 0 can be found by differentiating the function f(x) and using the point-slope form of a line.

The derivative of f(x) is f'(x) = cos(x) - 2sin(x). Substituting x = 0 into f'(x) gives f'(0) = cos(0) - 2sin(0) = 1 - 0 = 1.

Therefore, the equation of the tangent line is y = 1x + b, or y = x + b.

To find the value of b, we can plug in x = 0 and y = f(0) = sin(0) + 2cos(0) = 2 into the equation. Solving for b, we get 2 = 0 + b, so b = 2.

Therefore, the slope-intercept equation of the line tangent to the graph of y = f(x) at the point (0,2) is y = x + 2.

Answer:

(5w - 3)(2w - 5)

Step-by-step explanation:

As this polynomial is of the form ax² + bx + c, where a = 10, b = -31, and c = 15 (and x = w), in this case, as a is a number other than 1, the first step is to multiply a and c, replacing c with that product and removing the coefficient from the w² term, giving us:

w² - 31w + 150 (as 10 × 50 is 150)

Now, we are looking for two numbers that when they're multiplied together you get c, which is 150, and those same two numbers when added together gives us b, -31.

After looking through all of the possible factors of 150, we see that -25 and -6 fulfill both of these requirements (as -25 × -6 = 150 and -25 + -6 = -31)

Now, as we have our two numbers we can set up our factors:

(w - 6)(w - 25)

However, as we had to get rid of the 10 in front of the w², we now have to bring it back in front of both w's, giving us:

(10w - 6)(10w - 25)

Now we look and see if we can simplify.

We can see that 10 and -6 can both be simplified by 2, giving us:

(5w - 3)(10w - 25)

We can also see that 10 and -25 can be simplified by 5, giving us:

(5w - 3)(2w - 5)

Answer:

Step-by-step explanation:ok first you add 3 to 2 and the x is for times

The equation that represents the number of miles will be 68.25 = 35 + 0.07m. Then the number of miles will be 475 miles.

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the gradient of the line and c is the y-intercept of the line.

Let 'm' be the number of miles. Then the equation is given as,

$68.25 = $35 + 0.07m

Solve the equation for 'm', then we have

68.25 = 35 + 0.07m

33.25 = 0.07m

m = 33.25 / 0.07

m = 475 miles

The equation that represents the number of miles will be 68.25 = 35 + 0.07m. Then the number of miles will be 475 miles.

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The least polynomial that contains the roots - 6, 0, 3 - √5 is equal to y = x⁴ - 5 · x³  - 2 · x² + 4 · x.

In this problem we must determine a polynomial function that contains the following roots: - 6, 0, 3 - √5. By quadratic formula we understand the quadratic polynomial may contain two roots of this kind: x₁ = α + β and x₂ = α - β. Therefore, the complete set of roots of the least polynomial is:

x₁ = - 6, x₂ = 0, x₃ = 3 - √5, x₄ = 3 + √5

And the factor form of the least polynomial is:

y = (x + 6) · x · (x - 3 + √5) · (x - 3 - √5)

y = (x² + x) · [(x - 3)² - 5]

y = (x² + x) · (x² - 6 · x + 4)

y = x⁴ + x³ - 6 · x³ - 6 · x² + 4 · x² + 4 · x

y = x⁴ - 5 · x³  - 2 · x² + 4 · x

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Answer:

Step-by-step explanation:the answer is 0.14 pounds

The QS would be QS = PQ(1 + PQ/13)

What are the sides and angles of a parallelogram?

S = (n 2) 180°, where 'n' specifies the number of sides in the polygon, can also be used to determine this.

Since PQRS is a parallelogram, opposite sides are parallel and equal in length. Therefore, we can say that PQ = SR and QS = PR.

If QX = 13, then we can use the fact that PQRS is a parallelogram to find the length of QS. We can draw a line segment from Q that is parallel to SR, and call the point where this line segment intersects PS as Y. This forms two triangles, QXY and QSR, which are similar because they share an angle and have parallel sides.

By the properties of similar triangles, we can set up a proportion:

QY/QX = QS/SR

Since QY is the same as PS, we can substitute PQ + QY for PS:

(QX + PQ)/QX = QS/SR

Substituting the value of QX and recognizing that PQ = SR, we get:

(13 + PQ)/13 = QS/PQ

Simplifying this equation, we get:

1 + PQ/13 = QS/PQ

Multiplying both sides by PQ, we get:

PQ + (PQ^2/13) = QS

Since PQ = SR and PQRS is a parallelogram, we know that SR = PQ, so we can substitute PQ for SR:

QS = PQ + (PQ^2/13)

Simplifying further, we get:

QS = PQ(1 + PQ/13)

Therefore, The QS would be QS = PQ(1 + PQ/13)

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An equation of the line that satisfies the given conditions is x = 2y + 13.

To find the equation of the line that passes through the point (-9, -11) and is perpendicular to the line passing through (-6, 1) and (-2, -1), we can use the slope-point form of a line.

First, we find the slope of the line passing through (-6, 1) and (-2, -1). The slope of this line can be found using the formula:

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

where (x1, y1) and (x2, y2) are the coordinates of the two points.

Plugging in the values, we have:

m = (-1 - 1) / (-2 - (-6)) = -2 / 4 = -1/2

The slope of a line perpendicular to this line has a negative reciprocal, so the slope of the line through (-9, -11) that is perpendicular to this line is 1/2.

Next, we use the point-slope form of a line to find the equation of the line:

y - y1 = m (x - x1)

where (x1, y1) is a point on the line and m is the slope.

Plugging in the values, we have:

y - (-11) = 1/2 (x - (-9))

Expanding and simplifying, we get:

y + 11 = 1/2 (x + 9)

Multiplying both sides by 2, we get:

2y + 22 = x + 9

Subtracting 9 from both sides, we get:

2y + 13 = x

So, the equation of the line that satisfies the given conditions is:

x = 2y + 13

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Answer:

B

Step-by-step explanation:

It is B because:

21/5x+12-3+5/2x

21/5x+9+5/2x

u then find the lowest common multiple being 10x

42/10x+25/10x+90x/10x

67/10x+9

Answer:

C. 3

Step-by-step explanation:

One of the (many) properties of definite integrals is
[tex]\mbox{\large \int\limits _{a}^{b}f(x)\,dx + \int\limits _{b}^{c}f(x)\,dx = \int\limits }_{a}^{c}f(x)\,dx[/tex]

Therefore
[tex]\mbox{\large \int\limits _{-2}^{5}f(x)\,dx + \int\limits _{5}^{2}f(x)\,dx = \int\limits }_{-2}^{2}f(x)\,dx[/tex]

Given

[tex]\mbox{\large \int\limits _{-2}^{5}f(x)\,dx = 11}}}\para[/tex]

and

[tex]\mbox{\large \int\limits _{-2}^{2}f(x)\,dx = 14}}[/tex]

We get

[tex]\mbox{\large 11+ \int\limits _{5}^{2}f(x)\,dx} = 14[/tex]

Subtracting 11 from both sides we get

[tex]\mbox{\large \int\limits _{5}^{2}f(x)\,dx} = 14 - 11 = 3\\[/tex]

Answer: Choice C which is 3

The percent change in the price of cellphone from 2010 to today is 58.3%

The price of a cellphone today is $380

In 2010, the price of a similar cellphone was $240

The percent change can be calculated as follows

380-240/240 × 100

= 140/240 × 100

= 0.583 × 100

= 58.3

Hence the percent of change in the price of a cellphone from today is 58.3%

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