PLEASE GIMMI ANSWER ASAP

Sharon wants to buy a shirt that cost 40$. The sales tax is 5%. How much is the sales tax. What is her total cost for the shirt.

Simpson's rule is a numerical method for approximating integrals. It works by approximating the function being integrated as a parabola over each interval and then summing the areas of those parabolas to estimate the total area under the curve.

To estimate the integral ∫201x3 1−−−−−√dx using Simpson's rule with n = 8, we first need to divide the interval [2, 1] into 8 equal subintervals. The width of each subinterval, h, is therefore:

h = (b - a) / n
h = (1 - 2) / 8
h = -1/8

Next, we need to evaluate the function at the endpoints of each subinterval and at the midpoint of each subinterval. We can then use those values to construct the parabolas that will approximate the function over each subinterval.

The values of the function at the endpoints and midpoints of each subinterval are:

f(2) = 0
f(2 - h) = f(17/8) = 15.297
f(2 - h/2) = f(9/4) = 14.368
f(2 - 3h/2) = f(5/2) = 13.369
f(2 - 2h) = f(15/8) = 12.297
f(2 - 5h/2) = f(11/4) = 11.136
f(2 - 3h) = f(7/2) = 9.869
f(2 - 7h/2) = f(13/4) = 8.480

Using these values, we can now calculate the area under the curve over each subinterval using Simpson's rule:

∫f(x)dx ≈ h/3 * [f(a) + 4f((a+b)/2) + f(b)]

Applying this formula to each subinterval and summing the results, we get:

∫201x3 1−−−−−√dx ≈ -1/24 * [0 + 4(15.297) + 2(14.368) + 4(13.369) + 2(12.297) + 4(11.136) + 2(9.869) + 4(8.480) + 0]

Simplifying this expression, we get:

∫201x3 1−−−−−√dx ≈ -8.645

So the estimated value of the integral is -8.645.

To know more about integration visit:-

https://brainly.com/question/22008756

#SPJ11

A truth table is a table that describes the values of an input signal and the resulting output signal. The truth table can be used to determine the values of Boolean expressions by matching the input signal with the output signal.

The Boolean expressions can be derived from the truth table.In order to draw Truth Table for the given expressions and get their SOP and POS Boolean expression, we have to follow the below steps: Step 1: Truth Table for the given expressions

Truth Table for a) Y = A BC + AC + BC:

Truth Table for b) Y = (AB) + C(A + B):

Truth Table for c) Y = (A BC) A+D):

Truth Table for d) Y = A BC + (A + B)D:

Step 2: SOP (Sum of Product) and POS (Product of Sum) Boolean expression From the Truth Tables above, we can create the SOP and POS Boolean expression.

Here are the SOP and POS expressions for each of the given expressions:

a) Y = A BC + AC + BC- SOP: A B C + A C + B C- POS: (A + B) (A + C) (B + C)

b) Y = (AB) + C(A + B)- SOP: AB + AC + BC- POS: (A + C) (B + C)

c) Y = (A BC) A+D)- SOP: A B C + A D- POS: (A + D) (B + C) (A + D)

d) Y = A BC + (A + B)D- SOP: A B C + A D + B D- POS: (A + D) (B + D) (A + B)

Thus, the Truth Table for the given expressions and their SOP and POS Boolean expression are as shown above.

To know more about values visit:

https://brainly.com/question/30145972

#SPJ11

The average of 5 consecutive numbers starting from b is a+4.

Average of 5 numbers starting from a :

Avg = (a+a+1+a+2+a+3+a+4)/5

Avg = a+2

=> b = a+2

Average of 5 numbers starting form b :

Avg = (b+b+1+b+2+b+3+b+4)/5

Avg = b+2

Substituting b = a+2

Avg = (a+2) + 2

Avg = a+4

#SPJ4

Answer:

Step-by-step explanation:

7.

Domain : { x | -2 < x < 2 } (x such that x is greater than -2 and less than 2)

Range: { y | 1 < y < 5 } (y such that y is greater than 1 and less than 5)

8.

Domain: { x | x € ℝ } (x such that x is all real numbers)

Range: { y | x € ℝ } (y such that y is all real numbers)

Answer:

see explanation

Step-by-step explanation:

Firstly, dividing by zero is undefined.

given

f(x) = \(\frac{x}{x-1}\) , then

f(1) = \(\frac{1}{1-1}\) = \(\frac{1}{0}\) = undefined

probability that exactly 5  customers pay in cash  is 0.178863

Total number of customer = 20

probability of payment in cash = 0.3

probability of payments via other methods  = 1 - 0.3 =0.7

let probability of payment in cash be p

and probability of payments via other methods be q

To find the probability that exactly y customers pay in cash

p [ x = y ] =  \(n_c__x p^x q ^(n-x)\)

here value of y= 5 and n=20 , p =0.3 , q= 0.7

putting the values in above equations we get:

p [ x =5 ] = \(20_c__5 * 0.3 ^5 * 0.7 ^15\)

p [ x =5 ] = (15504) * (0.00243) * (0.0047475615)

p [ x =5 ] = 0.178863

so the probability that exactly 5  customers pay in cash  is 0.178863

To know more about probablility click on below link:

https://brainly.com/question/1305783#

#SPJ4

Start from the last equation:

2w = 8   ⇒   w = 4

z = w + 1   ⇒   z = 4 + 1   ⇒   z = 5

y = 2z - 3w   ⇒   y = 2•5 - 3•4   ⇒   y = -2

3x + 2y - z + 5w = 20   ⇒   3x + 2•(-2) - 5 + 5•4 = 20

⇒   3x = 9   ⇒   x = 3

Step-by-step explanation:

or , w = 8/2

or , w = 4

i think this is the answer

The answer of the given question is that - odd number is A, is the hypothesis of the conditional

Example. "If it's Wednesday, then yesterday was Tuesday," is a conditional statement. Our conclusion must be drawn if today is Wednesday. The day before yesterday was Tuesday.

The proposal listed below can be used to symbolize the statement:

\(P = > Q\)(Eq. 1)

Where:

the proposition's hypothesis = P

the proposition's conclusion = Q

A binary connection, sometimes known as "If..., then.

In this instance, we outline what each proposal means:

An odd number = P

When divided by 2, it has a residual of 1 = Q

"Odd number is = A " is the conditional's hypotheses.

To know more about conditional hypothesis visit:

https://brainly.com/question/14325973

#SPJ4

Based on the hypothesis test using a significance level (α) of 0.05 and a p-value of 0.20, we fail to reject the null hypothesis, which suggests that we should not build a brick-and-mortar store.

In hypothesis testing, we compare the p-value to the significance level (α) to make a decision about the null hypothesis (H0). The null hypothesis states that there is no significant effect or relationship, while the alternative hypothesis (Ha) suggests otherwise.

In this case, the null hypothesis (H0) states that we should not build a brick-and-mortar store, and the alternative hypothesis (Ha) suggests that we should build one. When the p-value is higher than the significance level (α), it means that we do not have enough evidence to reject the null hypothesis.

Given that the p-value is 0.20 and the significance level (α) is 0.05, the p-value is greater than α. Therefore, we fail to reject the null hypothesis, indicating that there is not enough evidence to support building a brick-and-mortar store. This means that based on the statistical analysis, it would be recommended not to proceed with constructing a physical store.

Learn more about significance level here: https://brainly.com/question/23946822

#SPJ11

Answer: y=-4x+c

Step-by-step explanation: Let's start off with the gradient of the line:

The gradient of such a line would be —1/(1/4) = -4, as it's the negative reciprocal of the gradient of the line it's perpendicular to.

So now you've got some line in the form of:

y = -4x + c

The line passes through (0,2), so chuck these numbers in and you get a value of 2 for c. If you're sharp, you might spot that this point is the y-intercept of the line since the x- coordinate is 0, this point is on the Y-axis, and you don't even have to throw numbers in.

Therefore the equation of the line is:

y = -4x + 2

To find the equation of a line passing through the point (0,2) that is perpendicular to the line y = 1/4x + 5, we can use the following steps:

y - y1 = m(x - x1)

where (x1, y1) is the given point and m is the slope of the line. Substituting the values, we get:

y - 2 = -4(x - 0)

Simplifying, we get:

y - 2 = -4x

Adding 2 to both sides, we get the final equation:

y = -4x + 2

So, the equation of the line passing through the point (0,2) and perpendicular to the line y = 1/4x + 5 is y = -4x + 2.

Answer:

L2 + W2 = P

L = 3W

2(3W) + 2W = 104

6W + 2W = 104

8W = 104

W = 13

Step-by-step explanation:

perimeter is 2 times length plus two times width.

add these togethter to get 104 (the given number)

then create an equation to find length based on the given number

simplify and find w.

Answer: width = 13 ft

Step-by-step explanation:

Perimeter (P) = 2 × Length (L) + 2 × width (w)

Given: P = 104, L = 3w

  P =   2L  +  2w

104 = 2(3w) + 2w

104 = 6w + 2w

104 = 8w

13 = w

Answer:

c i think because the problem =-

\( - \frac{1}{4} \)

Answer:

176.2

Step-by-step explanation:

On a calendar you tyow 140 then add 8% then add 25.00

Answer:

176.2

Step-by-step explanation:

Answer:

Step-by-step explanation:

You should share the table that was given; your first job is to complete the table.  Setting up a table from scratch:

 x     y = 2x + 3      point (x, y)

 0     2(0) + 3 = 3    (0, 3)

 1       2(1) + 3 = 5     (1, 5)   and so on.

The y-intercept is (0, 3) (which is shown above), and the slope of the line is 2.  

Plot (0, 3).  Because the slope of the line is 2, we move 1 space to the right from (0, 3), to (1, 3) and then 2 spaces UP from (1, 3) to (1, 5).

Draw a straight line through (0, 3) and (1, 5).

A prism has two congruent bases and rectangular lateral faces. The lateral area of a prism is the sum of the areas of all its lateral faces.

Let L be the length of the rectangular lateral faces, W be the width of the rectangular lateral faces, and H be the height of the prism.

We know that the lateral area of the prism is 240 square inches. This means that:

L x H + W x H + L x H + W x H = 240

Simplifying this equation, we get:

2LH + 2WH = 240

Dividing both sides by 2, we get:

LH + WH = 120

Since the prism has two congruent bases, the total surface area of the prism is the sum of the lateral area and the area of both bases. The area of each base is just the length times the width, or LW. Therefore, the total surface area is:

2(LW) + LH + WH

Substituting LH + WH = 120, we get:

2(LW) + 120

Simplifying further, we get:

2LW + 120

We do not have enough information to determine the length or width of the rectangular bases, so we cannot determine the value of 2LW. Therefore, the final answer is:

Total surface area = 2LW + 120

To learn more about the prism;

https://brainly.com/question/12649592

#SPJ4

Answer:

C

Step-by-step explanation:

To produce `samplematrix = [1, 4, 7, 5, 8, 3, 6, 9]` with the command `samplematrix([n]) = [ ]`, the value of `n` should be 2.

To produce `samplematrix = [1, 4, 7, 5, 8, 3, 6, 9]` with the command `samplematrix([n]) = [ ]`, the value of `n` should be 2. Here's the explanation: Given `samplematrix=[1, 2, 3; 4, 5, 6; 7, 8, 9]`, the command `samplematrix([n]) = [ ]` would remove the nth row from the matrix and leave an empty row in its place.

For example, if `n = 2`, then the command `samplematrix([n]) = [ ]` would remove the second row and leave an empty row in its place.

The resulting matrix would be:`samplematrix = [1, 2, 3; ; 7, 8, 9]`

Notice that there is an empty row in the middle because the second row was removed.

Next, to produce the desired matrix `samplematrix = [1, 4, 7, 5, 8, 3, 6, 9]`, we need to concatenate the rows of the modified `samplematrix` matrix in a specific order. The order is the first row, then the third row, and finally the second row. So, we can use the following code to achieve this:

result = [samplematrix(1,:); samplematrix(3,:); samplematrix(2,:)]

The resulting `result` matrix would be:`result = [1, 2, 3; 7, 8, 9; 4, 5, 6]`

We can then use the colon operator to reshape the matrix into a row vector, like this:`samplematrix = result(:)'`The resulting `samplematrix` vector would be:`samplematrix = [1, 4, 7, 5, 8, 3, 6, 9]`

Therefore, to produce `samplematrix = [1, 4, 7, 5, 8, 3, 6, 9]` with the command `samplematrix([n]) = [ ]`, the value of `n` should be 2.

Learn more about matrix visit:

brainly.com/question/29132693

#SPJ11

Answer:

1/16 out of the entire thing.

Step-by-step explanation:

1/4 of 1/4 is the same as 1/4 x 1/4.

1/4 x 1/4 = 1/16.

The correct equation for comparing the alternatives with a salvage value of $7,000 after 4 years and a MARR of 12% per year is b. PWX = -20,000 - 9000(P/A,12%,4) + 5000(P/F,12%,2) - 15000(P/F,12%,2).

The correct equation for the present worth (PW) when comparing the alternatives with a salvage value of $7,000 after 4 years and a MARR of 12% per year is:

b. PWX = -20,000 - 9000(P/A,12%,4) + 5000(P/F,12%,2) - 15000(P/F,12%,2)

This equation takes into account the initial cost of -$20,000, the cash inflow of $9,000 per year for 4 years (P/A,12%,4), the salvage value of $5,000 at the end of year 2 (P/F,12%,2), and the salvage value of $15,000 at the end of year 4 (P/F,12%,4).

Therefore, the correct option is b. PWX = -20,000 - 9000(P/A,12%,4) + 5000(P/F,12%,2) - 15000(P/F,12%,2).

To learn more about equations visit : https://brainly.com/question/29174899

#SPJ11

Notice that

(1 + x)(1 + y) = 1 + x + y + x y

So we can add 1 to both sides of both equations, and we use the property above to get

a + b + a b = 76  ==>  (1 + a)(1 + b) = 77

and

c + d + c d = 54  ==>  (1 + c)(1 + d) = 55

Now, 77 = 7*11 and 55 = 5*11, so we get

a + 1 = 7  ==>  a = 6

b + 1 = 11  ==>  b = 10

(or the other way around, since the given relations are symmetric)

and

c + 1 = 5  ==>  c = 4

d + 1 = 11  ==>  d = 10

Now substitute these values into the desired quantity:

(a + b + c + d) a b c d = 72,000

Answer:

x = - 3

Step-by-step explanation:

y = 3x + 2 → (1)

y = x - 4 → (2)

Subtract (2) from (1) term by term

y - y = 3x - x + 2 - (- 4)

0 = 2x + 2 + 4

0 = 2x + 6 ( subtract 6 from both sides )

- 6 = 2x ( divide both sides by 2 )

- 3 = x

Explanation:

This equation represents a line, so there are many points that are solutions to the equation. To fill in this boxes we just have to pick a x-value that's in the domain, replace it into the equation and solve for y. The domain of this function is all real numbers, so any number will work.

Using x = 1:

Answers:

A solution is (-24) = 8( 1 ) - 32

Answer:

6 ft

Step-by-step explanation:

Volume = (height) (width) (length), so

(width) = (volume) / [ (height) * (length) ]

Here, the width is:

(width) = (288 ft^3) / [ (6 ft) * (8 ft ) ]  =  288/48 ft = 6 ft

The width of the rectangular prism is 6 ft

In the fifth-grade class at Parker Elementary School, there are a total of 55 students. Among the 35 girls in the class, 4 voted for Mr. Ackerman as their favorite teacher.

Among the 20 boys, 10 voted for Ms. Husted as their favorite teacher. The information provides a breakdown of the students' preferences based on gender and the two teachers.

Out of the 55 students in the fifth-grade class, 35 are girls and 20 are boys. Among the girls, 4 voted for Mr. Ackerman, while among the boys, 10 voted for Ms. Husted. This means that 4 out of the 35 girls preferred Mr. Ackerman, and 10 out of the 20 boys preferred Ms. Husted. The total number of students who voted for Mr. Ackerman is 4 (from girls) + 0 (from boys) = 4. Similarly, the total number of students who voted for Ms. Husted is 0 (from girls) + 10 (from boys) = 10.

To learn more about students click here : brainly.com/question/29101948

#SPJ11

Answer:

16

Step-by-step explanation:

3x-8=2x

x=8

QR=2*8=16

Answer:

1.) Reflect across x-axis

2.) Reflect across y-axis

3.) Move to the right by one unit

Step-by-step explanation:

The reflection rule is ''about the origin''.

Used the concept of reflection that states,

When you reflect a point across the line y = x, the x-coordinate and y-coordinate change places. If you reflect over the origin, the x-coordinate and y-coordinate do not change places and are negated.

Given that,

Two figures VWGY and V'W'G'Y' is shown in the figure.

From the figure,

V = (0, - 2)

W = (- 1, 0)

G = (2, 0)

Y = (5, - 4)

V' = ((0,  2)

W' = ( 1, 0)

G' = (- 2, 0)

Y' = (- 5, 4)

Hence the coordinate satisfies the rule (x, y) → ( - x, - y).

So, the reflection rule is about the origin.

To learn more about the transformation visit:

https://brainly.com/question/30097107

#SPJ4

Answer:

x=30

Step-by-step explanation: First we would have to find the two angles of the corner of the triangle. 55° in the bottom left because of verticle angles. And 180-120= 60. And 60+55=115. 180-115=65. 65-5= 60. 60/2= 30. So x=30. (Sorry ik its sloppy) :)

The point in the form (1, y, z) that is equivalent to the given points is (1, 3/5, 3/5).

To find all the points in the form (1, y, z) that are equivalent to the points (2, -1, 0) and (0, -2, 1), we can use the concept of vector equivalence.

Let's consider the vector from (1, y, z) to (2, -1, 0). This vector is (2-1, -1-y, 0-z) = (1, -1-y, -z).

Similarly, the vector from (1, y, z) to (0, -2, 1) is (0-1, -2-y, 1-z) = (-1, -2-y, 1-z).

Since these two vectors are equivalent, we can set them equal to each other:

(1, -1-y, -z) = (-1, -2-y, 1-z)

Simplifying this equation, we get:

y - z = 0

2y + 3z = 3

Therefore, all points in the form (1, y, z) that are equivalent to the given points are given by the equations:

y = z

2y + 3z = 3

Solving this system of equations, we get:

y = 3/5

z = 3/5

So the point in the form (1, y, z) that is equivalent to the given points is (1, 3/5, 3/5).

Know more about vectors here:

https://brainly.com/question/30958460

#SPJ11

Answer: 13/25

Step-by-step explanation: it is equal to 52% which is greater than 50%

50% is greater than 13/25. To compare these two values, you can convert both of them to a common denominator, such as 50%. 50% is equal to 1/2, so 13/25 is equal to 52/50, which is less than 1/2 or 50%. Alternatively, you can also express both fractions as decimals and compare the two values that way. 50% is equal to 0.5, and 13/25 is equal to 0.52, so 50% is still greater than 13/25.

Answer:

\(2\frac{1}{5}\)

Step-by-step explanation:

The 11 gals of water are equally split up into 5 tanks, so divide 11 by 5.

\(\frac{11}{5}\) then simplifies into \(2\frac{1}{5}\)

the absolute maximum shear stress developed in the beam is (3wL)/(4ht).

To determine the absolute maximum shear stress developed in the beam, we need to find the maximum shear force and the corresponding location of that force. Then we can use the given formula for shear stress to calculate the absolute maximum shear stress.

Assuming that we have a simply supported beam with a distributed load of w per unit length, the maximum shear force occurs at the supports and is equal to wL/2, where L is the span of the beam.

The maximum bending moment occurs at the center of the span and is equal to wL²/8. The corresponding maximum shear stress occurs at the top and bottom surfaces of the beam at this location.

The moment of inertia of the beam cross-section is given by I = (b*h³)/12, where b is the width of the beam and h is the height.

The first moment of area of the beam cross-section about the neutral axis is given by Q = (b*h²)/8.

Using the given formula for shear stress, we have:

Shear stress = (VQ)/(I*t)

where V is the shear force, t is the thickness of the beam, and I and Q are as defined above.

Substituting the maximum values, we have:

Shear stress = ((wL/2)((bh²)/8))/((bh³)/12t)

Simplifying this expression, we get:

Shear stress = (3wL)/(4ht)

Therefore, the absolute maximum shear stress developed in the beam is (3wL)/(4ht).

Learn more about Shear stress here

https://brainly.com/question/20630976

#SPJ4

The absolute maximum shear stress developed in the beam can be determined by calculating the shear force and the first moment of area of the cross-section of the beam, and then using the equation Shear stress = (V * Q) / (l * t).

To determine the absolute maximum shear stress developed in the beam, we need to calculate the shear force and the first moment of area of the cross-section of the beam.

Step 1: Calculate the shear force (V) acting on the beam. The shear force can be obtained from the given equation:

V = (Shear stress) * (lt) / Q

Step 2: Calculate the first moment of area (Q) of the cross-section of the beam. The first moment of area can be calculated using the formula:

Q = ∫y * dA

Step 3: Determine the location where the shear force is maximum. This can be done by analyzing the loading conditions and the geometry of the beam.

Step 4: Once the maximum shear force is determined, substitute the values of V, Q, l, and t into the equation for shear stress:

Shear stress = V * Q / (l * t)

By following these steps, you can determine the absolute maximum shear stress developed in the beam.

About maximum shear stress here:

https://brainly.com/question/30263693

#SPJ11