Josh went into a store to buy a $100 item. There was a sale of 35% off all
The sales person gave Josh a 25% discount and then an additional
Is that the same as receiving a 35% discount? Prove your answer.
merchandise.
10% discount.

Step-by-step explanation:

f(-1) = (1/8)^-1 = 1/(1/8) = 8

f(0) = (1/8)⁰ = 1 (a⁰ = 1 for any a)

f(1) = (1/8)¹ = 1/8 = 0.125

f(2) = (1/8)² = 1/64 = 0.015625

f(3) = (1/8)³ = 1/512 = 0.001953125

remember

(a/b)ⁿ = aⁿ / bⁿ

in the same way as

(a×b)ⁿ = aⁿ×bⁿ

Answer:

Step-by-step explanation:

I assume that the amount of peanut butter chips in original recipe is [tex]1\frac{1}{2}[/tex] c (the picture isn't clear!)

2( [tex]1\frac{1}{2}[/tex] + x ) = [tex]4\frac{1}{2}[/tex]

[tex]1\frac{1}{2}[/tex] + x = [tex]4\frac{1}{2}[/tex] ÷ 2

[tex]1\frac{1}{2}[/tex] + x = [tex]2\frac{1}{4}[/tex]

x = [tex]2\frac{1}{4}[/tex] - [tex]1\frac{1}{2}[/tex] = [tex]1\frac{5}{4}[/tex] - [tex]1\frac{2}{4}[/tex] = [tex]\frac{3}{4}[/tex]

There is [tex]\frac{3}{4}[/tex] of a cup of nuts in original recipe.

Answers : A(-1,0) is a local maximum point, B(-1,2) is saddle point, C(3,0) is also a saddle point, D(3,2) is the minimum point.

saddle point : a point on a curved surface at which the curvatures in two mutually perpendicular planes are of opposite signs

The function :

f(x , y) = x³ = y³ = - 3x² - 3y² - 9x

The first partial derivative with respect to x is:

f' x = 3x²-6x-9

And the partial derivative with respect to y is:

f' y = 3y²-6y

Now equate the above derivatives to zero, to obtain the system of equation:

3x²-6x-9 = 0

3y²-6y = 0

On solving the two equations:

The critical points are : A(-1,0), B(-1,-2), C(3,0) and D(3,2)

Now calculate the discriminant

D = f xx(x , y)f y(x , y)-f xy(x , y)²

Here,

f xx = 6x-6

f yy = 6y-6

f xy = 0

On putting the above values we get:

D = (6x-6)(6y-6)

At, A(-1,0)

D = -18<0

Hence , A(-1,0) is a local maximum point.

At, B(-1,2)

D = -72<0

Hence B(-1,2) is saddle point.

At, C(3,0)

D = -72

Hence C(3,0) is also a saddle point

At, D(3,2)

D = 12>0

Hence , D(3,2) is the minimum point.

Answers : A(-1,0) is a local maximum point, B(-1,2) is saddle point, C(3,0) is also a saddle point, D(3,2) is the minimum point.

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Answer:

84

Step-by-step explanation:

this is an isosceles triangle so the base angles are equal meaning <BAC= <BCA =48°

48° +48° =96°

180°- 96° = 84°

<ABC = 84°

Answer: The average rate of change over the interval 12 < x < 30 is -4/3

Step-by-step explanation:

The average rate of change over an interval is defined as the change in the output (f(x)) divided by the change in the input (x) over that interval. In this case, the interval is 12 < x < 30. To find the average rate of change, we need to evaluate the function at the endpoints of the interval and subtract the value at the start point from the value at the end point, and divide that by the change in x.

Given the table:

f(30) = 16 and f(12) = 40

The average rate of change over the interval 12 < x < 30 is:

(f(30) - f(12)) / (30 - 12) = (16 - 40) / 18 = -24/18 = -4/3

So the average rate of change over the interval 12 < x < 30 is -4/3

It's worth noting that this is only the average rate of change, and the function may have different rates of change at different points within the interval 12 < x < 30.

The expressions that are equivalent to 5(4u) will be 20 u and 5(u + 3u).

It is important to note that an expression is simply used to show the relationship between the variables that are provided or the data given regarding an information. In this case, it is vital to note that they have at least two terms which have to be related by through an operator.

Some of the mathematical operations that are illustrated in this case include addition, subtraction, etc. The expression that is equivalent to 5(4u) will be:

= 20 u

and

5(u + 3u)

= 20u

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Answer:

Step-by-step explanation:

[tex]x^{2} -7x+c=(x+a)^{2}[/tex]

[tex]x^{2} -7x+c=x^{2} +2ax+a^{2}[/tex]

[tex]-7x=2ax\\a=-7/2[/tex]

[tex]a^{2} =c\\c=(-7/2)^{2} =49/4[/tex]

The value of x is 85°

A circular sector, also known as circle sector or disk sector is the portion of a disk enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger being the major sector

A sector is a region bounded by two radii of a circle and the intercepted arc of the circle. The angle formed by the two radii is called a central angle. A sector with a central angle less than 180° is called a minor sector. A sector with a central angle greater than 180° is called a major sector.

The sector where x is the minor sector

The angular distance is x and it is measured in degrees (°)

Therefore the value of x is 85°

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Answer:

.5 or 1/2

Step-by-step explanation:

1-.5      .5

------=------- simplify= .5 slope is in fractions 1/2

2-1       1

Answer: An array is a visual representation of a multiplication problem, and an area model is a way to represent a multiplication problem using rectangles. Both arrays and area models can be used to find factor pairs of a number.

Here's an example of how to use an array to find the factor pairs of 12:

Draw a rectangle that represents 12.

Divide the rectangle into smaller rectangles by drawing rows and columns.

Fill in the rectangles with the numbers 1 through 12.

Find the factor pairs by looking for the rectangles that have the same area as the original rectangle, 12.

The factor pairs of 12 are 1 and 12, 2 and 6, and 3 and 4.

Here's an example of how to use an area model to find the factor pairs of 12:

Draw a rectangle that represents 12.

Divide the rectangle into smaller rectangles by drawing rows and columns.

Label the rectangles with the factors of 12, which are 1, 2, 3, 4, 6 and 12.

Find the factor pairs by looking for the rectangles that have the same area as the original rectangle, 12.

The factor pairs of 12 are 1 and 12, 2 and 6, and 3 and 4.

Both arrays and area models are an effective way of finding the factor pairs of a number because they help you to visualize the multiplication problem and to see the relationship between the factors and the product.

Step-by-step explanation:

The z-score for this amount of advertising time will be -5.217.

The z-score is a statistical evaluation of a value's correlation to the mean of a collection of values, expressed in terms of standard deviation.

The z-score is given as

z = (x - μ) / σ

Where μ is the mean, σ is the standard deviation, and x is the sample.

A TV slot guarantees how much promotion each hour of transmission time has a normal of 17 minutes and a standard deviation equivalent to 2.3 minutes.

The amount of advertising time is equal to 5 minutes. Then the z-score is calculated as,

z = (5 - 17) / 2.3

z = -12/ 2.3

z = -5.217

The z-score for this amount of advertising time will be -5.217.

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Answer:

(a) Refer below for the Probability tree diagram

(b) [tex]\frac{7}{33}[/tex]

Step-by-step explanation:

(a) Probability tree diagram:

First bag:                                         Second bag

                                                       Red: [tex]\frac{7}{7 + 4}[/tex] = [tex]\frac{7}{11}[/tex]

Red: [tex]\frac{5}{12}[/tex]                                

                                                      Green:[tex]\frac{4}{7 + 4}[/tex] = [tex]\frac{4}{11}[/tex]

                                                        Red: [tex]\frac{7}{11}[/tex]

Green [tex]\frac{7}{12}[/tex]      

                                                        Green: [tex]\frac{4}{11}[/tex]      

(b) Probability that Hannah takes two green sweets:

Green sweet from first bag AND green sweet from second bag

= [tex](\frac{7}{12}).(\frac{4}{11} )[/tex]

= [tex](\frac{28}{132})[/tex]

Divide the numerator and denominator by the highest common factor (i.e  4)

= [tex]\frac{7}{33}[/tex]                                                    

The area of shaded triangle is 20 square feet

What is the area?

A two-dimensional figure's area is the amount of space it takes up. In other terms, it is the amount that counts the number of unit squares that span a closed figure's surface.

Area of triangle = 0.5*base*height

Area of whole triangle = 0.5*8*10 =  40 square feet

Area of unshaded triangle = 0.5*4*10 =  20 square feet

Area of shaded triangle

= Area of whole triangle  - Area of unshaded triangle

=  40 - 20

= 20 square feet

Thus, the area of shaded triangle is 20 square feet

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The answers are  46/35 ,5/4, 5/4, 7/3

A fraction is a part of a whole. In arithmetic, the number is expressed as a quotient, in which the numerator is divided by the denominator. In a simple fraction, both are integers. A complex fraction has a fraction in the numerator or denominator. In a proper fraction, the numerator is less than the denominator.

Given here: 3/5 + 5/7 = 46/35

6/12 + 9/12=5/4

1/4 + 4/4 = 5/4

2/3 + 5/3 = 7/3

Hence, The answers are  46/35 ,5/4, 5/4, 7/3

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Answer:

a line

Step-by-step explanation:

y equals one half times x x + 2y = 8 coordinate plane with one line that passes through the points 0 comma 4 and 2 comma 5 and another line that passes through the points 0 comma 0 and 2 comma 1 coordinate plane with one line that passes through the points 0 comma 4 and 2 comma 3 and another line that passes through the points 0 comma 0 and 2 comma 1 coordinate plane with one line that passes through the points negative 1 comma 2 and 0 comma 4 and another line that passes through the points 0 comma 0 and 1 comma 2 coordinate plane with one line that passes through the points 0 comma 4 and 2 comma 0 and another line that passes through the points 0 comma 0 and 1 comma 2

Answer:

B)  A coordinate plane with one line that passes through the points (0, 4) and (2, 3) and another line that passes through the points (0, 0) and (2, 1)

Step-by-step explanation:

Given system of linear equations:

[tex]\begin{cases}y=\frac{1}{2}x\\x+2y=8\end{cases}[/tex]

Substitute the first equation into the second equation and solve for x:

[tex]\implies x+2\left(\dfrac{1}{2}x\right)=8[/tex]

[tex]\implies x+x=8[/tex]

[tex]\implies 2x=8[/tex]

[tex]\implies x=4[/tex]

Substitute the found value of x into the first equation and solve for y:

[tex]\implies y=\dfrac{1}{2}(4)[/tex]

[tex]\implies y=2[/tex]

Therefore, the solution to the given system of linear equations is:

The point of intersection is the solution to a graphed system of linear equations.  

Therefore, the graph that shows the solution to the given system of linear equations is the graph where the point of intersection of the two lines is (4, 2).

Therefore , the solution of the given problem of linear equation comes out to be  $105 is the total cost

A linear regression model is one that uses the equation y=mx+b. The slope is B, and the y-intercept is m. The preceding sentence is commonly referred to as a "math equation with two variables," despite the fact that both y and x are separate factors. The only variables in bivariate linear equations are two. In all circumstances, the solutions to linear equations' application domains are zero. Y=mx+b is the formula for a single linear equation.

Here,

The first company's equation is y = 10.5x.

Additionally, the second company's equation is y = 7.5x + 30.

Where

number of T-shirts equals x.

y = overall cost

For the overall cost to be the same for both businesses, we have to:

=> 10.5x = 7.5x + 30

=> 10.5 x - 7.5 x = 30

=> 3 x = 30

=> x = 30/3

=> x = 10

To make the T-shirts' prices equal, the volleyball team must purchase 10 from each vendor.

Total for each business:

=> 10.5x = 10.5 (10) = $ 105

OR

Totals for each company are calculated as follows:

=> 7.5x + 30 = 7.5(10) + 30 = 75 + 30

=> $105

Therefore , the solution of the given problem of linear equation comes out to be  $105 is the total cost.

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At 2.57 hours distance between them is 35 miles

(2t)2 + (2.5(t - 2))2 = 302

4t2 + (2.5t - 5)2 = 900

4t2 + 6.25t2 - 25t + 25 = 900

2.25t2 - 25t - 875 = 0

Let t (hours) be the amount of time Elsie needs to travel in order to reach a distance of 35 miles. Steve travels t + 2 miles to the north in the time it takes him since he is 2 hours early.

Solve for t, then add to 7:00 for your time.

which will give you 2.57 hours.

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The correct question will be

Steve and Elsie are camping in the desert, but have decided to part ways. Steve heads north, at 7 AM, and walks steadily at 3 miles per hour. Elsie sleeps in and starts walking west at 2.5 miles per hour starting at 9 AM.

When will the distance between them be 35 miles?

Since, Four distinct fair coins are tossed. if it is known that at least one of the coins shows a head . The probability that all coins show heads is 3/4.

Probability:

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes for an event. In an experiment with 'n' outcomes, the number of favorable outcomes can be denoted by x. The formula for calculating the probability of an event is:

  Probability (Event) = Favorable Outcome / Total Outcome = x/n

The probability of an event can be calculated using the probability formula by simply dividing the number of favorable outcomes by the total number of possible outcomes. The value of the probability that an event will occur can range from 0 to 1. This is because the preferred number of outcomes can never exceed the total number of outcomes. Also, the resulting favorable number can never be negative.

Given that:

Four District fair coins are tossed.

So, possible outcomes are

    HH,HT,TH,TT

We know that:

Probability= total possible outcomes / favorable outcomes

Now,

​Favorable outcomes = HH,HT,TH

And,

Probability = 3/4

Therefore, ​the probability that all coins show heads is 3/4.

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Answer:

The Sun has 1.0975 x 10^2  times the diameter of Earth

Step-by-step explanation:

Diameter of Sun = 1.4 x 10^9 m

Diameter of Earth = 1.2756 x 10^7 m

ratio between Diameter of Sun and Earth :-

Diameter of Sun/Diameter of Earth = 1.4 x 10^9/ 1.2756 x 10^7

= 1.0975 x 10^2

A graph of the image of the triangle with vertices (4, 7), (3, 4), and (8, 2) after a transformation with the rule (x, y) → (−x, y) is shown in the image attached below.

In Geometry, a reflection over the y-axis (y = x) is given by this transformation rule (x, y) → (-x, y). This ultimately implies that, a reflection over the y-axis would maintain the same y-coordinate while the sign of the x-coordinate changes from positive to negative or negative to positive.

By applying a reflection over the y-axis to the coordinates of this triangle the image coordinates include the following:

(x, y)                               →              (-x, y)

Coordinate A = (4, 7)   →  Coordinate A' = (-(4), 7) = (-4, 7).

Coordinate B = (3, 4)   →  Coordinate B' = (-(3), 4) = (-3, 4).

Coordinate C = (8, 2)   →  Coordinate C' = (-(8), 2) = (-8, 2).

Next, we would use an online graphing calculator to plot the coordinates of the image as shown in the image attached below.

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The area of the resulting two-dimensional cross-section of the pyramid geometry will be 5 square inches.

What is Geometry?

It deals with the size of geometry, region, and density of the different forms both 2D and 3D.

What is an area in math definition

Area is defined as the total space taken up by a flat (2-D) surface or shape of an object. Take a pencil and draw a square on a piece of paper. It is a 2-D figure. The space the shape takes up on the paper is called its Area. Now, imagine your square is made up of smaller unit squares

A slice is made parallel to the base of a right rectangular pyramid, as shown.

Then the area of the resulting two-dimensional cross-section will be

Area = 2 in × 2.5 in

Area = 5 in²

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Answer:

C. 14x^7-56x^6-126x^5+35x^4-140x^3-315x^2

I'm only providing an answer but if you need an explanation you can ask me because I did it in my journal.

Pls mark as brainliest ;)

The ratios are 80 : 2/3, 10 : 1/12 and 90 : 3/4 for the equivalent ratio 20 : 1/6.

By dividing both the antecedent and consequent values by a similar fraction, equivalent ratios can be reduced to the same value. In other words, two ratios are deemed equivalent if the bigger one in value can be expressed as a multiple of the other.

Therefore, we only need to multiply the two amounts by the same number to obtain the equivalent ratio of another ratio. Equivalent ratios and equivalent fractions both have similar ideas. Examples of equivalent ratios include 1:2 and 4:8, 3:5 and 12:20, 9:4 and 18:8, etc.

20 : 1/6

Multiply both by 6

120  : 1

Thus, 120 × 2/3  : 1 × 2/3

80 : 2/3

multiply by 3

80 × 3 : 2/3 × 3

240 : 2

120 : 2

When ratio is 120  : 1

divide both by 120

120/120  : 1/120

1 : 1/120

1 × 10 : 1/120 × 10

10 : 1/12

multiply by 12

120 : 1

1 × 90 : 1/120 × 90

90 : 3/4

multiply by 4

90 × 4 : 3/4 × 4

360 : 3

120 : 1

Thus, the ratios are 80 : 2/3, 10 : 1/12 and 90 : 3/4 for the proportion 20 : 1/6.

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​

The equation 291 = 359 + 125m represents the given phrase, and the required value of m is 2.33

Algebra is a discipline of mathematics that deals with symbols and the rules that govern their use. These symbols, known as variables in elementary algebra, indicate quantities with no set values. Equations in mathematics express relationships between variables in the same way that sentences indicate relationships between specific words.

The equation 291 = 359 + 125m can be solved for m by subtracting 359 from both sides, resulting in:

291 - 359 = 125m - 359

-68 = 125m - 359

Adding 359 to both sides gives:

-68 + 359 = 125m

291 = 125m

Dividing both sides by 125 gives the solution for m:

291 / 125 = 125m / 125

2.33 = m

So, m is equal to 2.33.

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The question seems incomplete, the completed question would be as:

If 291 is the same as 359 increased by the product of 125 and m. what is the value of f?

Answer:

To find the volume of the cereal box, we multiply the length, width, and height:

12 inches * 7 and 3/4 inches * 2 inches = 96 inches * 7.75 inches * 2 inches = 1458 cubic inches

To find the volume of the pastry box, we multiply the length, width, and height:

3 and 2/3 inches * 3 and 1/2 inches * 2 and 1/3 inches = 3.666 inches * 3.5 inches * 2.333 inches = 25.158 cubic inches

To find the difference in volume between the two boxes, we subtract the volume of the pastry box from the volume of the cereal box:

1458 cubic inches - 25.158 cubic inches = 1432.842 cubic inches

So the difference in volume between the two boxes is 1432.842 cubic inches.

Answer:1432.842 cubic inches

Step-by-step explanation:

The confidence interval's upper and lower bounds, respectively, are 0.117 for the higher and 0.083 for the lower.

The interaction between two or much more quantities is the focus of the branch of mathematics known as ratio and proportion. A key component of GCSE mathematics, ratio and proportion comprehension has connections to several subjects in number, algebra, geometry, probability, and statistics. An equilibrium for two ratios is a percentage. We use proportions to construct comparable ratios and find solutions to problems involving unknown numbers.

[tex]\begin{aligned}\bar{p} & =\frac{x}{n}=\frac{120}{1200}=0.10 \\\frac{\alpha}{2} & =\frac{1-\text { Confidence } \%}{2}=\frac{1-0.95}{2}=0.025 \\z_{1-\alpha / 2} & =z_{0.975}=1.960 \Rightarrow \text { Use the Excel formula "=NORMSINV(0.975)" }\end{aligned}[/tex]

[tex]S . E .=z_{1-\alpha / 2} \sqrt{\frac{\bar{p}(1-\bar{p})}{n}}=1.960 \sqrt{\frac{0.1(1-0.1)}{1200}}=0.017[/tex]

The confidence interval's top bound: [tex]\bar{p}[/tex] + S.E = 0.10 + 0.017 = 0.117

The confidence interval's lowest bound: [tex]\bar{p}[/tex] - S.E. = 0.10 - 0.017 = 0.083

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The correct option is A, the linear equation has no solutions.

Here we want to see how many solutions do the equation below has:

(1/4)*(8 - 24x) = 12 - 6x

Now let's try to solve that linear equation, we can start by simplifying the left side:

(1/4)*(8 - 24x) = 12 - 6x

8/4 - 24x/4 = 12 - 6x

2 - 6x = 12 - 6x

Now we can add 6x in both sides, so we will get:

2 - 6x + 6x = 12 - 6x + 6x

2 = 12

That is a false equation, thus, the equation has no solutions.

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Answer:

I would really like to help but I have no idea

The volume of a hemisphere with a radius of 44.9 m is approximately 189582.2 cubic meters, rounded to the nearest tenth.

To calculate the volume of a hemisphere, you can use the formula

V = (2/3)πr^3

where V is the volume, π is pi (approximately 3.14), and r is the radius. In this case, r = 44.9 m.

So, (2/3)π(44.9)^3 = 189582.234 cubic meters.

This is the exact volume, but since the question asked for the volume rounded to the nearest tenth, the final answer would be 189582.234 cubic meters. It's worth mentioning that a hemisphere is half of a sphere, thus, the volume of a full sphere with a radius of 44.9 m would be double of this value.

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