A pat check Math. This is a assignment

Answer:

-3x -12

Step-by-step explanation:

-6x +3x = -3x

-3-9 = -12

The estimated population mean with

80% confidence =  [30.856, 33.135]

90% confidence = [30.543, 33.456]

Since, For a population with unknown mean  and known standard deviation , a confidence interval for the population mean, based on a simple random sample of size n, is x + - z*  × σ /√n  , where z* is the upper (1-C)/2 critical value for the standard normal distribution.

Here, Population standard deviation = 5.6

Sample mean = 32

Sample size = 40

Given confidence level = 80%

at 80% confidence level = 1.28

Upper confidence interval = 33.135

Lower confidence interval = 30.865

Population mean lies between [30.856, 33.135] at 80% confidence level.

Given confidence level = 90%

at 90% confidence level = 1.65

Upper confidence interval =33.456

Lower confidence interval = 30.543

Population mean lies between [30.543, 33.456] at 90% confidence level.

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According to the information we can infer that the period of the graph is 8.

To determine the period of the graph we have to consider that the period of a grah is the distance between rigdes. So, in this case we have to count what is the difference between each rigde.

In this case, the distance between rigdes is 8 units because the first is located in the line 1 an the second is located in the line 9. So we can conclude that the period of the graph is 8.

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Answer:

Step-by-step explanation:

\(0.625=\frac{625}{1000} =\frac{5}8}\)

Answer:

2

Step-by-step explanation:

The slope is given by

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

   = (7-3)/(10-8)

    = 4/2

    = 2

Answer:

The demand function is  \(\mathbf{D(x) = 1200(\sqrt{25-x^2})+ 124000}\)

Step-by-step explanation:

A firm has the​ marginal-demand function \(D' x = \dfrac{-1200}{\sqrt{25-x^2 } }\).

Find the demand function given that D = 16,000 when x = $4 per unit.

What we are required to do  is to find the demand function D(x);

If we integrate D'(x) with respect to x ; we have :

\(\int\limits \ D'(x) \, dx = \int\limits{\dfrac{-1200 x}{\sqrt{25-x^2}} } \, dx\)

\(D(x) = \int\limits{\dfrac{-1200 x}{\sqrt{25-x^2}} } \, dx\)

Let represent   t  with \(\sqrt{25-x^2}}\)

The differential of t with respect to x is :

\(\dfrac{dt}{dx}= \dfrac{1}{2 \sqrt{25-x^2}}}(-2x)\)

\(\dfrac{dt}{dx}= \dfrac{-x}{ \sqrt{25-x^2}}}\)

\({dt}= \dfrac{-xdx}{ \sqrt{25-x^2}}}\)

replacing the value of  \(\dfrac{-xdx}{ \sqrt{25-x^2}}}\)  for dt in   \(D(x) = \int\limits{\dfrac{-1200 x}{\sqrt{25-x^2}} } \, dx\)

So; we can say :

\(D(x) = \int\limits{\dfrac{-1200 x}{\sqrt{25-x^2}} } \, dx\)

\(D(x) = 1200\int\limits{\dfrac{- x}{\sqrt{25-x^2}} } \, dx\)

\(D(x) = 1200\int\limits \ dt\)

\(D(x) = 1200t+ C\)

Let's Recall that :

t  = \(\sqrt{25-x^2}}\)

Now;

\(\mathbf{D(x) = 1200(\sqrt{25-x^2}})+ C}\)

GIven that:

D = 16,000 when x = $4 per unit.

i.e

D(4) = 16000

SO;

\(D(x) = 1200(\sqrt{25-x^2}})+ C\)

\(D(4) = 1200(\sqrt{25-4^2}})+ C\)

\(D(4) = 1200(\sqrt{25-16}})+ C\)

\(D(4) = 1200(\sqrt{9}})+ C\)

\(D(4) = 1200(3}})+ C\)

16000 = 1200 (3) + C

16000 = 3600 + C

16000 - 3600 = C

C = 12400

replacing the value of C = 12400 into \(\mathbf{D(x) = 1200(\sqrt{25-x^2}})+ C}\), we have:

\(\mathbf{D(x) = 1200(\sqrt{25-x^2})+ 124000}\)

∴ The demand function is  \(\mathbf{D(x) = 1200(\sqrt{25-x^2})+ 124000}\)

Answer:

a) 263,158

b) $164,500

c) Ethical issues companies face when deciding to move operations: job loss for employees, poor working conditions and exploitation of workers, negative environmental impact,...

Step-by-step explanation:

a)

Total cost = (0.25 + 0.02 + 0.03 + 0.15) x + 250,000

Total revenue = 1.40x

Setting the two equations equal to each other and solving for x, we get:

(0.45)x + 250,000 = 1.40x

0.95x = 250,000

x ≈ 263,158

b)

If the company sells 270,000 candy bars at $1.40 each, the total revenue generated is:

270,000 * $1.40 = $378,000

The total cost of producing 270,000 candy bars is:

(0.25 + 0.02 + 0.03 + 0.15) * 270,000 + $250,000 = $213,500

Therefore, the company's profit is:

$378,000 - $213,500 = $164,500

c)

Ethical issues companies face when presented with the decision to move operations: job loss for employees, poor working conditions and exploitation of workers, negative environmental impact,...

Answer:

\( - 3(x + 4) {}^{2} - 4\)

Step-by-step explanation:

Vertex form is

\(a(x - h) {}^{2} + k = f(x)\)

We know that h and k are both -4. Let x be -2 and y be -16.

\(a( - 2 + 4) {}^{2} - 4 = - 16\)

\(a(2) {}^{2} - 4 = - 16\)

\(4a - 4 = - 16\)

\(4a = - 12\)

\(a = - 3\)

So the equation in vertex form is

\( - 3(x + 4) {}^{2} - 4\)

Answer:

Answer:×(-2)

Answer:×(-2)Step-by-step explanation:

-2/1 = -2

4/-2 = -2

-8/2 = -2

Next two: 16, -32

Answer: $46.08

Step-by-step explanation:

Find the surface Area of the box

the bases are 12*12= 144 times 2 bases 144*2= 288

The area of each side is 12*18=216 times 4 sides 216*4=864

add the totals together to find the total surface area 288+864=1152

total surface area is 1152 inches. Multiply by the cost per square inch

1152*.04= 46.08

Answer:4

Step-by-step explanation:

2+2 is 4

Answer:

w=9

Step-by-step explanation:

7w -17=46

Add 17 to each side

7w -17+17=46 +17

7w = 63

Divide each side by 7

7w/7 = 63/7

w=9

Answer:

W=9

Step-by-step explanation:

46+17=63

63=7w

63/7=9

The height of the can of cylinder shape is 9.14 cm.

What is a cylinder?

In mathematics, a cylinder is a three-dimensional solid that maintains two parallel bases separated by a curved surface at a specific distance. These bases frequently have a circular shape (like a circle), and an axis connects their respective centres.

We are given the diameter as 4 cm.

So, the radius is 2cm.

Also, it is given that the surface area of the can is 140 square centimeters.

So, using the surface area of cylinder, we get

⇒Area = 2πr (h + r)

⇒140 = 2π * 2 (h + 2)

⇒140 = 4π (h + 2)

⇒140 = 4 * 3.14 * (h + 2)

⇒140 = 12.56 * (h + 2)

⇒11.14 = h + 2

⇒h = 9.14

Hence, the height of the can of cylinder shape is 9.14 cm.

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Answer:

3x+3y

8m-5x

-5x+10y

Step-by-step explanation:

Algebra 1

Answer:

Step-by-step explanation:

Given:

To Find:

Solution:

Let's assume Width of rectangle x inches and length be 3x inches. To calculate the dimensions of The rectangle we will use the formula of Perimeter of rectangle:

Perimeter of rectangle = 2(L + B)

→ 64 = 2(3x + x)

→ 64 = 2(4x)

→ 64/2 = 4x

→ 32 = 4x

→ 32/4 = x

→ 8 = x

Hence,

Answer:

⠀

Step-by-step explanation :

⠀

As it is given that, the legnth of a rectangle is three times its width and the perimeter is 64 in and we are to find the length and width of the rectangle. So,

⠀

Let us assume the width of the rectangle as w inches and therefore, the length will be 3w inches .

⠀

Now, According to the Question :

⠀

\({\longrightarrow \qquad { \pmb{\frak {2 ( Length + Breadth )= Perimeter_{(Rectangle)} }}}}\)

⠀

\({\longrightarrow \qquad { {\sf{2 (3 x + x )= 64 }}}}\)

⠀

\({\longrightarrow \qquad { {\sf{2 (4x )= 64 }}}}\)

⠀

\({\longrightarrow \qquad { {\sf{8x= 64 }}}}\)

⠀

\({\longrightarrow \qquad { {\sf{ x = \dfrac{64}{8} }}}}\)

⠀

\({\longrightarrow \qquad{ \underline{ \boxed { \pmb{\mathfrak {x = 8}} }}} }\: \: \bigstar\)

⠀

Therefore,

⠀

Now, We are to find the length of the rectangle:

\({\longrightarrow \qquad{ { \frak{\pmb{Length = 3x }}}}}\)

⠀

\({\longrightarrow \qquad{ { \frak{\pmb{Length = 3 \times 8 }}}}}\)

⠀

\({\longrightarrow \qquad{ \underline{ \boxed{ \frak{\pmb{Length = 24}}}}}} \: \: \bigstar\)

⠀

Therefore,

⠀

This is the quotient of (-15b^5 + 18b^3) divided by 3b. The expression simplifies to -5b^4 + 6b^2.

To find the quotient of the expression (-15b^5 + 18b^3) divided by 3b, we can perform the division by simplifying each term separately.

First, let's divide -15b^5 by 3b:

(-15b^5) / (3b) = -15/3 * b^5/b = -5 * b^(5-1) = -5b^4

Next, let's divide 18b^3 by 3b:

(18b^3) / (3b) = 18/3 * b^3/b = 6 * b^(3-1) = 6b^2

Now, we have simplified each term individually. The resulting expression is:

-5b^4 + 6b^2

This is the quotient of (-15b^5 + 18b^3) divided by 3b. The expression simplifies to -5b^4 + 6b^2.

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The calculated measure of the angle D is (c) 32 degrees

From the question, we have the following parameters that can be used in our computation:

The triangles ABC and DEF

The triangles are similar triangles

This means that the corresponding angles are equal

Given that

A = 32 degrees

And the corresponding angle is D

We have

D = 32 degrees

Hence, the measure of the angle is (c) 32 degrees

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Answer:

So, "Compare the following rational numbers," its asking which of them is greater, or if there equal to each other.

So for 3.25 and 3 1/2

3 1/2 is greater

3.25 < 3 1/2 (so it should look like this when the symbol on that side)

and for -4.5 and -4.05

-4.05 is greater.

-4.5 < -4.05  (so the symbol is also on that side.)

Answer:

identity

Step-by-step explanation:

brainliest plz

Answer:

Three times two is 6

Step-by-step explanation:

Answer: 150 minutes or 2.5 hours

Step-by-step explanation: subsite the hours with x so you would have 2x=300 if she reads 2 pages a minute in 150 minutes she would have 300 pages

Answer:

2) 98/15 meters

21/5 + 7/3 = 63/15 + 35/15 = 98/15

3) 7/12 of the loaf

1/3 + 1/4 = 4/12 + 3/12 = 7/12

4) 19/8 inches

9/8 + 5/4 = 9/8 + 10/8 = 19/8

5) 73/6 cups

29/3 + 5/2 = 58/6 + 15/6 = 73/6

Let me know if this helps!

Answer:

Step-by-step explanation:

Answer:

I think it's x= 32 degrees

Step-by-step explanation:

Answer:

when you calculate the value of w is z= 5

Step-by-step explanation:

The measure of the angles are;

<KL = 23 degrees

m<LON is 23 degrees

m<OM = 113 degrees

m<KNL = 23 degrees

m<NL = 157 degrees

To determine the measures of the arc, we need to note the following;

From the information shown in the diagram, we have;

<KL +<KM = 90 degrees

Now, substitute the values

<KL + 67 = 90

collect like terms

<KL = 23 degrees

m<LON and <KL are corresponding angles

Then, m<LON is 23 degrees

m<OM = m<LON + 90 degrees

Substitute the values

m<OM = 113 degrees

m<KNL = 23 degrees

m<NL = 90 + <LM

Substitute the values

m<NL = 157 degrees

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Step-by-step explanation:

2+5=7 = 19-3+3=13

5-3=2

6+5=11-21+3= -33

8+5= 13= 1

4+5= 9

The system of equations that does not satisfy the ordered pair is

6m -21n = -33  

9m + 4n = 5

3m = 9 + 6n

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the ordered pair ( m , n ) = ( 5 , 3 )

The value of m = 5

The value of n = 3

Now , the equation will be

a)

The equation is

2m = 19 - 3n

Substituting the values , we get

2 x 5 = 19 - 3 x 3

10 = 19 - 9

10 = 10

The equation satisfies for the ordered pair

b)

The equation is

m - n = 2

Substituting the values , we get

5 - 3 = 2

2 = 2

The equation satisfies for the ordered pair

c)

The equation is

6m -21n = -33

Substituting the values , we get

6 x 5 - 12 x 3 = -33

30 - 36 = -33

-3 = -33

The equation does not satisfy the ordered pair

d)

The equation is

8m = −23 + 21n

Substituting the values , we get

8 x 5 = -23 + 21 x 3

40 = -23 + 63

40 = 40

The equation satisfies for the ordered pair

e)

The equation is

4m − 3n = 11

Substituting the values , we get

4 x 5 - 3 x 3 = 11

20 - 9 = 11

11 = 11

The equation satisfies for the ordered pair

f)

The equation is

2m + 5 = 5n

Substituting the values , we get

2 x 5 + 5 = 5 x 3

10 + 5 = 15

15 = 15

The equation satisfies for the ordered pair

g)

The equation is

9m + 4n = 5

Substituting the values , we get

9 x 5 + 4 x 3 = 5

45 + 12 = 5

57 = 5

The equation does not satisfy the ordered pair

h)

The equation is

3m = 9 + 6n

Substituting the values , we get

3 x 5 = 9 + 6 x 3

15 = 9 + 18

15 = 27

The equation does not satisfy the ordered pair

Hence , the equations 6m -21n = -33  ,  9m + 4n = 5 and 3m = 9 + 6n   does not satisfy the given ordered pair ( m , n ) = ( 5 , 3 )

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Answer:

english yes

Step-by-step explanation:

ANSWER

EXPLANATION

Let the number of slices of pizza that Jess can buy be x.

She has to buy a ticket which costs $12 and x slices of pizza for $2.25 each. All these must cost less than or equal to $30 which Jess has.

Therefore, the inequality that represents how many slices of pizza Jess can buy is:

Answer:

63

Step-by-step explanation:

plug 125 in for 'f'

3/5(125-20) = 3/5 · 105 = 315/5 = 63