set a contains the four numbers 104, 120, 160 and 180
set b contains the five numbers 75, 78, 90, 120 and n
mean set A: mean set B = 4 : 3
find N

The graph of the exponential function y = (3/4)^x is given by the following option:

Option A.

The general format of an exponential function is defined as follows:

[tex]y = ab^x[/tex]

The meaning of the parameters a and b are given as follows:

In this problem, the function is given by:

y = (3/4)^x.

Hence the values of the parameters are:

a = 1, b = 3/4.

The parameter a = 1 means that the function crosses the y-axis at y = 1, hence options B and C are removed.

From the table given in the problem, at x = -2 the function is very close to 2, while it decreases to a value close to 0.5 at x = 2, hence option A is the correct option for the graph of the exponential function.

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Answer: 26%

Step-by-step explanation: 50 x 0.14 = 7. 12 + 8 + 10 + 7 = 37, 37÷50=0.26 so 26%

The percentage of blue skittles is 26%.

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

Total number of skittles = 50

Red skittles = 12

Yellow skittles = 8

Green skittles = 10

Orange skittles = 14%

This means,

= 14/100 x 50

=  7

Blue skittles.

= 50 - (12 + 8 + 10 + 7)

= 50 - 37

= 13

The percentage of blue skittles.

= 13/50 x 100

= 1300/50

= 26%

Thus,

26% of blue skittles.

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Answer: y < 3 - 2x

Step-by-step explanation:

6x + 3y < 9

3y < 9 - 6x (after subtracting both sides by 6x)

y < 3 - 2x (after dividing both sides by 3)

Keeping it short.

Differentiate each term with respect to [tex]x[/tex], then solve for [tex]y'.[/tex]

[tex]\frac{dy}{dx} =12\sin^3(3x)\text{cos}(3x)[/tex]

Thanks.

The slope of the line r is 3 and the y intercept is (0,15) .

We know that coordinates of the point (x,y) after dilation by factor k centered at (a,b) is  (k(x-a) + a , k(y-b) + b)  .

In the question ,

it is given that

the slope of the line p [tex]=[/tex] 3

and the intercept of the line p = (0,2)

So , the equation of the line p is y = 3x + 2 .

So , the coordinates of the point (0,2) after dilation by factor 3 centered at (0,0) is (3(0 - 0) + 0 , 3(5 - 0) + 0)

= (0 , 15)

Point (0,0) does not lie on the line, so the line r after dilation is parallel to the line p,

the slope of line r = 3 , the y intercept is 15 .

Therefore , The slope of the line r is 3 and the y intercept is (0,15) .

The given question is incomplete , the complete question is

In the coordinate plane, line p has slope 3 and y-intercept (0, 2). Line r is the result of dilating line p by a factor of 3 centered at the origin. What are the slope and y-intercept of line r ?

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The amount of money that is needed to pay after 5 years is 12762.9  .

In the question ,

it is given that ,

the amount borrowed(P) = $10000

the rate at which the amount is borrowed (r) = 5% = 0.05

the time for which the amount is borrowed (t) = 5 years

the number of times the interest is charge (n)  = 1 .

The final amount for the compound interest is calculated using the formula .

Amount = [tex]P\times(1+\frac{r}{n})^{nt}[/tex]

Substituting the value of P , r , n and t , in the formula ,

we get

Amount = 10000 (1 + 0.05)⁵

= 10000*(1.05)⁵

= (10000)*(1.2762815625)

= 12,762.815625

≈ 12762.9

Therefore , The amount of money that is needed to pay after 5 years is 12762.9  .

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The mass of the solid copper is 1479 g.

According to the question,

We have the following information:

The density of copper is 9.86 g/[tex]cm^{3}[/tex].

Measurements of the solid copper cuboid = 10 cm, 3 cm and 5 cm

We know that the following formula is used to find the volume of cuboid:

Volume = length*breadth*height

Volume = 10*3*5

Volume = 150 [tex]cm^{3}[/tex]

Now, we know that the following formula is used to find the density of an object:

Density = mass/volume

9.86 = mass/150

Using the cross multiplication method:

Mass = 150*9.86

Mass = 1479 g

Hence, the mass of the solid copper is 1479 g.

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Answer: 84m

Step-by-step explanation:

If one of the perimeters are 2m longer than the other that means on side can be expressed as x and the other expressed as x+2

So the equation for the area is [tex]x^{2} \\[/tex]+2x

Becasue the shaded area has an gap of in it we need to find the area of the gap to find the total area of the square

0.5x3x4=6

114+6

So the total area is 120

So we can use the area equation from before to figure out x

120=[tex]x^{2} \\[/tex]+2x

0=[tex]x^{2} \\[/tex]+2x-120

0=(x-10)(x+12)

Since its a measurement x must equal 10

Now we know that one side is 20m and the other is 22m

So the perimetre must be 84

The approximate area of the regular pentagon is 342cm²

Using the Pythagorean theorem, we can calculate the apothem of the pentagon.

We have then:

a = √(12² - (14.1/2)²)

a = 9.7

Then, the area of the pentagon is given by:

Area = 5 (1/2) x l x a

Where,

L: side of the pentagon

a: apotema

Substituting values:

area = 5(1/2) x 14.1 x 9.7

area = 341.925 cm²

Rounding the nearest whole we have: 342 cm²

Hence, the approximate area of the regular pentagon is 342cm²

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Answer:

1,11,21,31,41,51,61,71,81,91,101..

Step-by-step explanation:

When the perimeter of the rectangle is 70 in, the length and width are 19 and 16 inches.

It should be noted that the perimeter of a rectangle will be calculated as:

= 2(Length + Width)

In this case, the length of a rectangle is 3in longer than it’s width and the perimeter of the rectangle is 70 in.

Therefore, width = w

length = w + 3

The perimeter will be:

2(w + w + 3) = 70

2(2w + 3) = 70

4w + 6 = 70

Collect like terms

4w = 70 - 6

4w = 64

Divide

w = 64 / 4

w = 16

Width = 16 inches

Length = w + 3 = 16 + 3 = 19 inches.

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Complete question

The length of a rectangle is 3in longer than it’s width. If the perimeter of the rectangle is 70 in, find the length and width.

Quadratic function for the given properties is [tex]y=-4x^{2} +24x-28[/tex].

The roots are [tex]3+\sqrt{2}[/tex] and [tex]3-\sqrt{2}[/tex]; that means the axis of symmetry is x=3; which means the vertex has x coordinate 3. Then the vertex form of the equation is

[tex]y = a(x-3)^{2}+k[/tex]

Then since y is 0 when x is [tex]3+\sqrt{2}[/tex],

[tex]0=a(\sqrt{2} )^{2} +k[/tex]

[tex]0=2a+k[/tex]                    (1)

And when x = 1, y = -8,

[tex]-8 = a(-2)^{2}+k[/tex]

[tex]-8=4a+k[/tex]                (2)

Then from equations (1) and (2)

[tex]-8=2a[/tex]

[tex]a = -4[/tex]

And then from either equation (1) or (2), k = 8.

So the equation is

[tex]y = -4(x-3)^{2}+8[/tex]

[tex]y=-4(x^{2} -6x+9)+8[/tex]

[tex]y=-4x^{2} +24x-28[/tex]

Solving this equation using the quadratic formula verifies that the roots are  [tex]3+\sqrt{2}[/tex] and [tex]3-\sqrt{2}[/tex]; evaluating the expression for x=1 verifies that the y value is -8.

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Yes, quadrilateral ABCD is a parallelogram.

What are the properties of parallelogram?

A parallelogram is a particular sort of polygon. It is a quadrilateral in which the opposite side pairs are parallel to one another.

Properties:

1. Opposite sides are congruent.

2. Opposite angels are congruent.

3. Consecutive angles are supplementary.

4. If one angle is right, then all angles are right.

5. The diagonals of a parallelogram bisect each other.

6. Each diagonal of a parallelogram separates it into two congruent

It is given that the coordinates of the vertices of quadrilateral ABCD are A (8, -3), B(-2, 1), C (-4,-4), and D(6, -8).

According to distance formula,

If A(a,b) and B(x,y) are two coordinates then

AB = [tex]\sqrt{(x-a)^{2}+(y-b)^{2}}[/tex]

Now, using this distance formula in quadrilateral ABCD

AB = [tex]\sqrt{(-2-8)^{2}+(1+3)^{2}}= \sqrt{(-10)^{2}+(4)^{2}}=\sqrt{100+16}=\sqrt{116}[/tex]

CD = [tex]\sqrt{(6+4)^{2}+(-8+4)^{2}}=\sqrt{10^2+(-4)^2}=\sqrt{100+16}=\sqrt{116}[/tex]

Now, If we have two coordinates A(a,b) and B(x,y) then

Slope of AB = [tex]\frac{y-b}{x-a}[/tex]

Using this formula , finding slope of AB and CD of quadrilateral ABCD we get ,

Slope of AB = [tex]\frac{1+3}{-2-8}=\frac{4}{-10}=\frac{2}{-5}[/tex]

Slope of CD = [tex]\frac{-8+4}{6+4}=\frac{-4}{10}=\frac{-2}{5}[/tex]

As slope of both AB and CD is equal therefore, we can say that AB and CD are parallel.

As AB = CD and AB is parallel to Cd Therefore, ABCD is a parallelogram as opposite sides of parallelogram are equal and parallel.

Hence, quadrilateral ABCD is a parallelogram.

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Sugar will i need to make enough cookies to feed my whole class is 11 cups.

Given:

A recipe for cookies says 2/3 of a cup of sugar will be enough to feed 3/4 of my class.

2/3 cup of sugar = 3/4 of my class

Multiply by 12 on both sides

2*12/3 = 3*12/4

24/3 = 36/4

8 cups of sugar = 9 of my class.

if 3/4 = 9 whole class = 12.a

Add plus 3 on both sides

8 + 3 = 9 + 3

11 cups of sugar = 12 of my class.

Therefore Sugar will i need to make enough cookies to feed my whole class is 11 cups.

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Answer:

b² +5b + 4 = 0

b² + 5b -41= 5.702

3

Step-by-step explanation:

 1.1     Factoring  b2+5b-4 

The first term is,  b2  its coefficient is  1 .

The middle term is,  +5b  its coefficient is  5 .

The last term, "the constant", is  -4 

Step-1 : Multiply the coefficient of the first term by the constant   1 • -4 = -4 

Step-2 : Find two factors of  -4  whose sum equals the coefficient of the middle term, which is   5 .

     -4   +   1   =   -3     -2   +   2   =   0     -1   +   4   =   3

The complete table of values is:

x  -2  -1  0  1  2

y 1/9  1/3 1  3  9

From the question, we have the following equation:

f(x) = 3ˣ

From the table of values, we have the following x values

x = -2, -1, 0, 1 and 2

Substitute x = -2, -1, 0, 1 and 2 in the equation f(x) = 3ˣ

When x = -2

f(-2) = 3⁻² = 1/9

When x = -1

f(-1) = 3⁻¹ = 1/3

When x = 0

f(-1) = 3⁰ = 1

When x = 1

f(1) = 3¹ = 3

When x = 2

f(2) = 3² = 9

Hence, the complete table of values is:

x  -2  -1  0  1  2

y 1/9  1/3 1  3  9

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The state income tax owed on a $60,000 per year salary.

is tax = $2850.

A percentage is a figure or a ratio that is expressed as a fraction of 100. The percentage sign, "%," is used to denote it. The percentage is denoted by the abbreviations "pct" or "pc." In other words, the percentage is measured in terms of 100 and is defined as the proportion of one quantity that is made up of another.

The % has no boundaries. It implies that they are dimensionless numbers. When we state a number is 60% of something, we are implying that it is 60% of everything. Even fractional versions, like 0.56% or 0.87%, can be used to express it. Students' exam scores in any subject are calculated as a percentage. For instance, Pooja received a 78% on his exam.

Tax slab is as follows:-

0 - 10,000                  =   3%

10,001 - 50,000         =    5%

50,001 - 100,000       =   5.5%

So total salary = $60000

Till $10000 tax deduction will be 3%

So, $10000 * 0.03 = $300

Then from $10,001 - $50,000 tax deduction will be 5%

Hence, the tax deduction will be $40000 * 0.05 = $2000

And from $50,001 - $100,000 tax deduction will be 5.5%

Only $10000 will be available for tax deduction

so, $10000 * 0.055 = 550

Hence total tax deduction will be $2850.

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Answer:

4.7x²

Step-by-step explanation:

3.7x² + x² = 3.7x² + 1x² = 4.7x²

A total of 81 apples and 72 spears are there in total.

Ratio is a quantitative relation between two amounts showing the number of times one value contains or is contained within the other. A statement expressing the equality of two ratios A:B and C:D is called a proportion. We can express proportion as -

A : B ∷ C : D

AND

A x D = B x C

Product of extremes equal to product of means.

Given is in a Petri café they discovered that as many apples as pears are rotten, ⅔ of all apples are rotten and that ¾ of all pears are rotten.

Assume that there are [x] apples and [y] pears in total.

Then, rotten apples = 2x/3

rotten paears = 3y/4

Since, they are equal, we get -

2x/3 = 3y/4

2x (4) = 3y (3)

8x = 9y

The whole number coordinates satisfying the equation are - (81, 72). Refer to the graph attached.

Therefore, a total of 81 apples and 72 spears are there in total.

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Answer:

Step-by-step explanation:

Let the initial number of books be x.

Set equation:

Answer:

50 books

Step-by-step explanation:

Forming the equation,

→ x + ((x/100) × 12) = x + 6

Now the value of x will be,

→ x + ((x/100) × 12) = x + 6

→ x - x + (12x/100) = 6

→ 0.12x = 6

→ x = 6/0.12

→ [ x = 50 books ]

Hence, answer is 50 books.

Answer:

y - 1 = 6(x+7)

Step-by-step explanation:

point slope form is  y-y₁=m(x-x₁)

given m = 6 and the point is (-7,1)

plug in your values

remember that an ordered pair is (x,y)

y-y₁=m(x-x₁) ----> y-1 = 6(x+7)...............just plug in values

Answer: It has to be between 0.1 to 0.3

Step-by-step explanation:

Answer: how do you do the question what the

Step-by-step explanation:

Vertex is slang for a corner or a place where two lines converge.The four corners of a square, for instance, are each referred to as a vertex.

The graph of g is a vertical stretch by a factor of 2 followed by a translation of 3 units down of the graph of f(x) = (x-1)²then the function g(x) = 2(x+4)²

f(x) =x²-2x+1 The graph of g be a vertical stretch by a factor of 3 and a reflection in the y-axis, followed by a translation 2 units left of the graph of  .f(x) =x²-2x+1

Rewrite the given function f(x).

f(x) =  (x-1)²

Now, the graph is stretched vertically by a factor of 2.

= 2(-x-1)²

reflect the graph about the y-axis.

2(x+1)²

move to the left by 3 units.

= 2(x+3+1)²

=2(x+4)²

The function g(x) =2(x+4)²

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The slope of line q is 3/7

The equation of line p is y=3/7x+9

The standard form of equation of a line is

y = mx + c

where m represents the slope of the line

Upon comparing the standard form with the given equation

y = 3/7 x + 9

we get that the slope of this line is 3/7

and the y intercept c is 9

When two lines are parallel to each other, then the slope of both the lines are same.

the slope of line q is same as the slope of line p as line q is parallel to line p

the slope of line q is 3/7

Therefore,  the slope of line q is 3/7

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The price bid will be increased by 23% over the cost, according to the question.

What do you mean by percentage?

A percentage in mathematics is a number or ratio that is expressed as a fraction of 100. The abbreviations "pct.", "pct.", and occasionally "pc" are also used to indicate it, though the percent sign, "%," is most frequently used. A percentage has no dimensions and no standard measurement.

According to data in the given question,

We have given data:

Cost on the product you make is $112 per unit.

Bid amount $138 per unit,

Cost over the bid= $138-$112 = $26

Now, we need to determine the Percentage increase,

Percentage increase[tex]= \frac{26}{112}*100 \\[/tex]

= 23%

Therefore, the price bid will be increased by 23% over the cost.

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Answer:

y = 2x we need to solve when x= -3. Using elimination, we can solve this system of equations like this:

y = 2x

x = -3

*2  *2

simplify

y = 2x

-6 = 2x

subtract

y+6=0

-6    -6

y=-6

So, when x=-3, y=-6

⇒The shape in the picture is a pentagon because it has five sides.

⇒ The sum of the interior angles of a pentagon is 540°

meaning:

[tex]4x+(3x+3)+(5x-2)+103+100=540\\[/tex]

⇒As a results you can see above we have an equation that can enable us to solve for x.

⇒Solving for x we have

[tex]4x+3x+5x+3-2+103+100=540\\[/tex]

⇒Now let us simplify like terms since we have grouped them already.

[tex]12x+204=540\\12x=540-204\\12x=336\\\frac{12x}{12} =\frac{336}{12} \\x=28[/tex]

∴ x=28°

Note I have written the equation above, as the first step.

In algebra, a triangle-shaped grouping of integers known as Pascal's triangle provides the coefficients for the expansion of every binomial formula, such as (x + y)ⁿ.

Although it is much older, it bears the name of the French scholar Blaise Pascal from the 17th century. In the eleventh century, the Chinese mathematician Jia Xian created a triangular form for the coefficients.

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