The bracelet Lily would like to buy costs $5 less than 5 times the amount she has saved . The bracelet costs $30. How much money does Lily have saved?

Answer:

saving amount=$38.7

Step-by-step explanation:

given cost price=$86

discount on black friday=45%

selling price=cost price(1-discount%)

selling price=86(1-[tex]\frac{45}{100}[/tex])

selling price=86([tex]\frac{55}{100}[/tex])

selling price=$47.3

saving amount=$86-$47.3=$38.7

saving amount=$38.7 answer

To find the savings on the shoes, multiply the original price by 45% to find the discount amount, then subtract it from the original price. The savings amount to $38.70.

You want to know how much you will save on a new pair of shoes that costs $86 if they are discounted by 45% on Black Friday. To calculate the savings, you need to calculate 45% of the original price and then subtract that amount from the original price.

Step-by-Step Calculation:

Calculate 45% of $86: (0.45 × $86 = $38.70).

Subtract the discount from the original price: ($86 - $38.70 = $47.30).

Therefore, if you wait until Black Friday, you will save $38.70 on the shoes.

Step-by-step explanation:

With no photo of the design is imposible to calculate exactly the design area. However:

We know that the area of a square is:

[tex]A_{sq}=L^2[/tex] where L is the leght of the square's side

Also, the area a triangle is:

[tex]A_{tr}=\frac{h*b}{2}[/tex] where h is the height and b is the base (see the figure)

So, the total area, assuming that all square tiles are equal between them (the same for the triangular ones):

[tex]A_{total}=A_{sq}*n_{squaretiles}+A_{tr}*n_{triangtiles}[/tex]

The standard form is [tex]7x^7 + 6x^5 -3x^3 + 8x[/tex]

Solution:

Given that we have to write the given equation in standard form,

[tex]6x^5 + 8x - 3x^3 + 7x^7[/tex]

In order to write any polynomial in standard form, you look at the degree of each term. You then write each term in order of degree, from highest to lowest, left to write

The terms are ordered from biggest exponent to lowest exponent

In the given equation,

[tex]6x^5 + 8x - 3x^3 + 7x^7[/tex]

7 is the highest exponent. So we write the standard form as,

[tex]7x^7 + 6x^5 -3x^3 + 8x[/tex]

Thus the terms are arranged from highest exponent to lowest exponent

The  standard form of the polynomial in 6x^5 + 8x-3x^3+7x^7 is

7x^7 +6x^5+ 8x-3x^3 ].

Polynomials can simply be explained as expressions of algebraic inclinations that bear variables and coefficients.

When polynomials are expressed in a way where the term with the highest degree is written first, the polynomial is said to be in its standard form.

Therefore, 7x^7 +6x^5+ 8x-3x^3 is the  standard form

More on Polynomial

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The original 15 people are 10% of the total number of people who received the mail.

Step-by-step explanation:

Given,

Number of people who received mail = 15

Mail further sent to 3 more friends;

Number of people who received mail from 15 people = 15*3 = 45 people

Number of people who received mail from 45 people = 45*2 = 90 people

Total number of people = 15+45+90 = 150 people

Now,

Percent of original people = [tex]\frac{Number\ of\ original\ people}{Total\ number\ of\ people}*100[/tex]

Percent of original people = [tex]\frac{15}{150}*100=10\%[/tex]

The original 15 people are 10% of the total number of people who received the mail.

Keywords: multiplication, percentage

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Answer:

x:3

Step-by-step explanation:

Answer:

So the Conclusion is that 4000 km/h is the constant speed.

Step-by-step explanation:

Given:

Time (hrs)  |  Distance (km)

0.5             |    2000

 1               |   4000

1.5             |  6000

To Find:

Constant Speed:

Solution:

We know ,

[tex]Speed =\frac{Distance}{Time}[/tex]    

For the first case we have

[tex]Speed=\frac{2000}{0.5} =4000\ km/h[/tex]

For the second case we have

[tex]Speed=\frac{4000}{1} =4000\ km/h[/tex]

For the third case we have

[tex]Speed=\frac{6000}{1.5} =4000\ km/h[/tex]

So the Conclusion is that 4000 km/h is the constant speed

Well ,I am not sure about the answer....

Answer: D. {145, 165, 165, 165, 165, 165, 175, 175, 175, 175, 175, 175, 185}

Step-by-step explanation:

In the given dot plot that is showing the pulse rates of runners after finishing a marathon, it can be seen that ,

There are 1 dot on 145, 5 dots on 165, 6 dots on 175 and 1 dot on 185.

So , the data sets is representing this would be {145, 165, 165, 165, 165, 165, 175, 175, 175, 175, 175, 175, 185} , which has the same number of values as the dot plot.

Hence, the data set representing the dot plot would be :

D. {145, 165, 165, 165, 165, 165, 175, 175, 175, 175, 175, 175, 185}

The data set that represented by the dot plot given is:

D. {145, 165, 165, 165, 165, 165, 175, 175, 175, 175, 175, 175, 185}

In a dot plot, each data point in a data set is represented by a dot.

To find out the data set that is represented in the dot plot, list out the data points as plotted on the dot plot given.

Thus:

Therefore, the data set that represented by the dot plot given is:

D. {145, 165, 165, 165, 165, 165, 175, 175, 175, 175, 175, 175, 185}

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Upon evaluating the function f(n) = (2n + 3)2 – 2n at the given values, the true statement is f(3) = 75.

To determine which statement about the function f(n) = (2n + 3)2 – 2n is true, we must evaluate the function at the given values of n.

Therefore, the statement that is true is f(3) = 75.

Answer:

[tex]3.5 - 1.4 + 2.9 \\ = 5[/tex]

hope this helps you

Answer:

3.5 - 1.4 + 2.9 = 5

Step-by-step explanation:

 3. 5 - 1.4 + 2.9

At first, we will add 3.5 and 2.9 and then we will subtract 1.4 from the sum of 3.5 and 2.9.

So, 3.5 - 1.4 + 2.9

= (3.5 + 2.9) - 1.4

= 6.4 - 1.4

= 5

So, the value of 3.5 - 1.4 + 2.9 is 5.

Answer:

First option is correct.

[tex]\sqrt[10]{4}[/tex]

Step-by-step explanation:

Given:

The given expression is [tex](4^{\frac{2}{5}})^{\frac{1}{4}}[/tex]

We write the given expression with a rational exponent as a radical expression such as.

[tex]=(4^{\frac{2}{5}})^{\frac{1}{4}}[/tex]

Simplify the above equation by multiplication of powers.

[tex]=(4^{\frac{2}{5}\times \frac{1}{4}})[/tex]

[tex]=(4^{\frac{1}{5}\times \frac{1}{2}})[/tex]

[tex]=(4^{\frac{1}{5\times 2}})[/tex]

[tex]=(4^{\frac{1}{10}})[/tex]

[tex]=\sqrt[10]{4}[/tex]

Therefore, The answer is [tex]=\sqrt[10]{4}[/tex].

Answer:

[tex]y^4+1+\dfrac{1}{y^4}[/tex]

Step-by-step explanation:

Consider expression

[tex]y^7-\dfrac{1}{y^5}[/tex]

Rewrite it:

[tex]\dfrac{y^7\cdot y^5-1}{y^5}=\dfrac{y^{12}-1}{y^5}[/tex]

Consider the numerator:

[tex]y^{12}-1=(y^4)^3-1^3[/tex]

Use formula:

[tex]a^3-b^3=(a-b)(a^2+ab+b^2)[/tex]

So,

[tex](y^4)^3-1^3=(y^4-1)((y^4)^2+y^4\cdot 1+1^2)=(y^4-1)(y^8+y^4+1)[/tex]

Now,

[tex]\dfrac{y^7\cdot y^5-1}{y^5}=\dfrac{(y^4-1)(y^8+y^4+1)}{y^5}=\dfrac{y^4-1}{y}\cdot \left(y^4+1+\dfrac{1}{y^4}\right)[/tex]

Hence,

[tex]GCF(y^7-\frac{1}{y^5}, y^4+1+\frac{1}{y^4})=y^4+1+\dfrac{1}{y^4}[/tex]

Answer:

Step-by-step explanation:

Consider expression

Rewrite it:

Consider the numerator:

Use formula:

So,

Now,

Hence,

Answer:

Step-by-step explanation:

(1, 12)

(420, 12)

Any coordinate with a y value of 12 lies on the line y = 12.

-----

(-5, 69)

(-5, 13)

Any coordinate with an x value of -5 lies on the line x = -5.

-----

Since the equation must be perpendicular to the line x = 4, which is a vertical line, it must also be written in the form x = a.

Since the x coordinate is 3, the equation of the line is simply x = 3.

Answer:

n = 1

Step-by-step explanation:

First, rearrange the equation to standard form 0 = ax² + bx + c, when everything equals 0.

5n² = 5

5n² - 5 = 0

State the variables a, b and c.

a = 5;  b = 0;  c = -5

Substitute a, b, and c into the quadratic formula.

[tex]n = \frac{-b ±\sqrt{b^{2}-4ac} }{2a}[/tex]

[tex]n = \frac{-0 ±\sqrt{0^{2}-4(5)(-5)} }{2(5)}[/tex]   Substitute

[tex]n = \frac{\sqrt{100} }{10}[/tex]   Simplify inside the √ and bottom

[tex]n = \frac{10}{10}[/tex]  Simplify the top

[tex]n = 1[/tex]  Final answer

Therefore the solution is n = 1.

The quadratic formula usually is written with x, but it can be solved with any variable in standard form.

Answer:

Therefore the Minimum value of f(x) is 2.

Step-by-step explanation:

Given:

[tex]f(x)=x^{2} + 6x+11[/tex]

To Find:

minimum or maximum value of f(x)

Solution:

To find minimum or maximum value of f(x)

Step 1 . Find f'(x) and f"(x)

[tex]f(x)=x^{2} + 6x+11[/tex]

Applying Derivative on both the side we get

[tex]f'(x)=\dfrac{d(x^{2})}{dx}+\dfrac{d(6x)}{dx}+\dfrac{d(11)}{dx}[/tex]

[tex]f'(x)=2x+6+0[/tex]

Again Applying Derivative on both the side we get

[tex]f''(x)=\dfrac{d(2x)}{dx}+\dfrac{d(6)}{dx}[/tex]

[tex]f''(x)=2[/tex]

Step 2. For Maximum or Minimum f'(x) = 0 to find 'x'

[tex]2x+6=0\\\\2x=-6\\\\x=\dfrac{-6}{2}=-3[/tex]

Step 3. IF f"(x) > 0 then f(x) is f(x) is Minimum at x

            IFf"(x) < 0 then f(x) is f(x) is Maximum at x

Step 4. We have

[tex]f''(x)=2[/tex]

Which is grater than zero

then f(x) is Minimum at x= -3

Therefore the Minimum value of f(x) is 2.

The minimum value is 2 when x = -3.

The minimum or maximum value of the function f(x) = x^2 + 6x +11, we need to complete the square or use the vertex formula for a quadratic function.

The function is a parabola that opens upwards (since the coefficient of the x2 term is positive). To complete the square, we group the x-terms and add and subtract the square of half the coefficient of x:

f(x) = (x^2 + 6x + 9) + 11 - 9

f(x) = (x + 3)^2 + 2

The minimum value of this parabola occurs at the vertex, which is (-3, 2).

Answer:

B

Step-by-step explanation:

Answer:

{3, 6}

Step-by-step explanation:

f(x) is the same thing as y. f(x) or y are the values that are shown in the range.

The domain represents all possible values of x. Data must be in an (x, y) form, where any value of "y" would need a partner, "x".

Substitute all of the possible x-values into the formula to find all possible y-values (the range).

f(x) = x² - 2x + 3

f(-1) = (-1)² - 2(-1) + 3

f(-1) = 1 + 2 + 3

f(-1) = 6

f(x) = x² - 2x + 3

f(0) = (0)² - 2(0) + 3

f(0) = 0 - 0 + 3

f(0) = 3

f(x) = x² - 2x + 3

f(2) = (2)² - 2(2) + 3

f(2) = 4 - 4 + 3

f(2) = 3    Do not write repeated numbers

The possible y-values are 3 and 6.

Writ the range in set notation in the brackets {}. Order the numbers from least to greatest.

Range is {3, 6}.

The range of a function with a specified domain is equal to {3, 6}.

Range of the function:

The function is f(x) = x² - 2x + 3. Given the domain {-1, 0, 2}, we can find the corresponding range by evaluating the function at each point in the domain:

For x = -1: f(-1) = (-1)² - 2(-1) + 3 = 6.

For x = 0: f(0) = 0² - 2(0) + 3 = 3.

For x = 2: f(2) = 2² - 2(2) + 3 = 3.

The range of this function for the given domain is {3, 6}.

The terms 'solution,' 'root,' 'x-intercept,' and 'zero' are related in mathematics, but they are not always the same.

The statement in the question is false. Though the terms 'solution,' 'root,' 'x-intercept,' and 'zero' are related in mathematics, they are not always the same.

In quadratic equations, for example, the 'solution' refers to the values of x that make the equation equal to zero, while 'root' refers to the values of x that satisfy the equation. 'X-intercept' refers to the points on the graph where the equation intersects the x-axis, while 'zero' refers to the x-values for which the equation equals zero.

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Answer:

Yes, No, Yes, Yes

Step-by-step explanation:

1a = Yes

1b= No

1c= Yes

1d =Yes

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20 times 4 add 5 is

20*4+5

20*4=80

80+5=85

85 is your answer

Answer: 85.

Step-by-step explanation: 20 times 4 equals 80, add 5 to that makes 85.

And the equation in mathematical form: ( 20 X 4 ) = 80 + 5 = 85.

Hope this helps, if not, comment below please!!!!!

Answer:

1) Two terms

2) Three factors

Step-by-step explanation:

We are given the following expression:

abc + def

We have to compete the given statement with the help of given expression.

abc - 3 factors: a, b and c

def - 3 factors: d, e and f

The expression abc + def consists of two algebraic terms, each with three factors.

The expression abc + def consists of two terms, and each term contains three factors. To elaborate, a term in algebra is a single part of an expression separated by plus or minus signs. The given expression has two distinct groupings separated by a plus sign: 'abc' and 'def'. Each of these groupings is considered a term. Moreover, within each term, there are three variables multiplied together, hence each term contains three factors. Understanding this fundamental concept of terms and factors is crucial for manipulating algebraic expressions, factoring, and solving equations more efficiently.

Final answer:

Being a storehouse of value means the item retains its worth over time, allowing it to be saved, stored, and reliably used later as a medium of exchange, like money or other assets with lasting value.

Explanation:

To be a storehouse of value means that the item, such as money, can retain its worth over some time. Unlike goods that may deteriorate, go out of style, or otherwise lose value, a storehouse of value allows individuals to save and store their wealth, retrieving it later with confidence that it will still be valuable.

Money is a common store of value since you do not need to spend it right away and can trust that even with the potential erosion of value due to inflation, it will remain a valid medium for future transactions.

Goods such as houses, artworks, or financial assets are also considered stores of value, but money is distinguished by its liquidity—being readily exchangeable for other goods or services. Although not perfect due to inflation, money's role as a medium of exchange in financial markets and aggregate expenditure makes it a convenient choice for storing value, especially when compared to the barter system.

In conclusion, option D - Any item that maintains its worth over time, accurately describes a storehouse of value.

Answer:

In trigonometry, the law of cosines relates the lengths of the sides of a triangle to the cosine of one of its angles. Using notation as in Fig. 1, the law of cosines states where γ denotes the angle contained between sides of lengths a and b and opposite the side of length c.

Step-by-step explanation:

Answer:

X = 117.9°

Step-by-step explanation:

Rearranging the cosine rule to obtain C

cosC = [tex]\frac{a^2+b^2-c^2}{2ab}[/tex]

Here C = X, a = 50, b = 55, c = 90

cosX = [tex]\frac{50^2+55^2-90^2}{2(50)(55)}[/tex]

        = [tex]\frac{2500+3025-8100}{5500}[/tex]

        = [tex]\frac{-2575}{5500}[/tex], thus

X = [tex]cos^{-1}[/tex]( - [tex]\frac{2575}{5500}[/tex] ≈ 117.9°

Answer:

area of rectangle garden=6x^2-23x+20

Step-by-step explanation:

given lengtarden=l=3x-4

         width of rectangle garden=b=2x-5

area of rectangle garden=a=lb

                                        =(3x-4)(2x-5)

                                        =6x^2-15x-8x+20

                                       =6x^2-23x+20

area of rectangle garden=6x^2-23x+20  answer

Answer:

He will earn 45.50 in five hours.

Step-by-step explanation:

Answer:

45.5

Step-by-step explanation:

9.10*5

Answer:

[tex]m\angle STR=24^o[/tex]

Step-by-step explanation:

we know that

[tex]m\angle STQ=m\angle STR+m\angle RTQ[/tex] ---> by addition angle postulate

we have

[tex]m\angle STQ=48^o[/tex] ----> given problem

[tex]m\angle STR=m\angle RTQ[/tex] ----> given problem

substitute in the expression above

[tex]48^o=2m\angle STR[/tex]

Divide by 2 both sides

[tex]m\angle STR=24^o[/tex]

Answer:

A.24

Step-by-step explanation:

Answer:

The options 3, 4, and 5 are functions.

Step-by-step explanation:

If there is more than one value of y for a given single value of x then this is called a relation but not a function.

That geometrically means that if you can draw a vertical line that intersects the graph that is plotted from the given points that intersect the graph at more than one point then this graph is called a relation and not a function.

Here, in option one the points on the graph are given to be (6,-6), (-3,12), (6,-1) and (-8,13), which is not a function as there are two values of y for x = 6.

Now, in option two the points on the graph are given to be (0,0.5), (2,1), (1,2.5) and (0,2), which is also not a function as there are two values of y for x = 0.

Now, in option three the points on the graph are given to be (8,7), (7,8), (6,5) and (5,6). this can be a function.

Now, in option four the points on the graph are given to be (-2,7), (-3,9), (-5,9) and (-8,11). this can be a function.

Finally, in option five the points on the graph are given to be (-3,0), (-5,8), (-7,8) and (-9,0). this can be a function. (Answer)

Answer:

I think it is B. 52.3

Answer:

13.1 in

Step-by-step explanation:

apex