14. Shawn usually sells umbrellas for $20. On rainy days, he sells them for
30% more. What is the cost on a rainy day of buying a new umbrella? *
$14
$26
O $6
O $30

Answer:

Step-by-step explanation:

11.0

Answer:

$2.50

Step-by-step explanation:

$3.50 * 5 = $17.50

$17.50 - $15.00 = $2.50

Hope this helps

Answer:

3.50 x 5 = 17.50 - 15.00 = 2.50

Step-by-step explanation:

youll save $2.50

Answer:

Jayden buys 4 pounds of coffee

Step-by-step explanation:

Let's say that p represents the number of pounds of coffee Jayden bought. She starts with $90, and for each pound she buys, she loses $7.26 dollars. Therefore, as she loses 7.26 dollars, we must subtract the amount she pays from $90. Then, as she loses 7.26 dollars for each pound, we multiply 7.26 by the number of pounds to find the money she spends.

We can thus write our equation as

90 - 7.26*p = final amount = 60.96

90-7.26p = 60.96

subtract 90 from both sides to isolate the p and its coefficient

-7.26p = -29.04

divide both sides by -7.26 to isolate the p

p = 4

Jayden buys 4 pounds of coffee

So, the z-scores are approximately 1.34 and 2.08.

Therefore, the probability that the sample mean will be between 66.6 and 68.4 is approximately 0.4115, or 41.15% (rounded to two decimal places).

To calculate the probability that the sample mean falls between 66.6 and 68.4, we need to find the z-scores corresponding to these values and then use the z-table or a statistical calculator.

a) Calculate the z-scores:

The formula for calculating the z-score is:

z = (x - μ) / (σ / √n)

For the lower value, x = 66.6, μ = 63.3, σ = 16.0, and n = 35:

z1 = (66.6 - 63.3) / (16.0 / √35) ≈ 1.34

For the upper value, x = 68.4, μ = 63.3, σ = 16.0, and n = 35:

z2 = (68.4 - 63.3) / (16.0 / √35) ≈ 2.08

b) Find the probability:

To find the probability between these two z-scores, we need to find the area under the standard normal distribution curve.

Using a z-table or a statistical calculator, we can find the probabilities corresponding to these z-scores:

P(1.34 ≤ z ≤ 2.08) ≈ 0.4115

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90

Step-by-step explanation:

because it has a parallel line

Answer:

q= 11

Step-by-step explanation:

25-14= 11

Answer:

q= 11

Step-by-step explanation:

25=q+14

25-14=q+14-14

11=q

hope it's helpful ❤❤❤

THANK YOU.

Using inverse operations, the value of h in the given equation is: 81.

An inverse operation can be defined as a mathematical process that involves the use of one operation to cancel the action of the other operation.

For example, if we have a + b = c, using inverse operation to solve for a, we can cancel b on the left by subtracting b from both sides of the equation:

a + b - b = c - b [subtraction property of equality]

a = c - b.

Another example:

ab = c, to solve for a, divide both sides by b:

ab/b = c/b [division property of equality]

a = c/b.

Therefore, given the equation:

19 = h/3 - 8

Add 8 to both sides of the equation

19 + 8 = h/3 - 8 + 8 [addition property of equality]

27 = h/3

Multiply both sides by 3:

27(3) = h/3(3) [multiplication property of equality]

81 = h

h = 81

The value of h in the equation is determined as: 81.

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Answer

B 29

Step-by-step explanation:

Edge 2020

Answer:

B. 29 degrees

Step-by-step explanation:

Answer: 9" by 7"

Step-by-step explanation:

let the dimensions of the rectangle be x and y

equation 1:  xy=63

equation 2:  2(x+y)=32

first, rearrange the terms

(1′):  y=63/x

(2′):  y=16−x

(1′)-(2′):  0=63/x−16+x

multiply the equation by  x

0=x2−16x+63

0=(x−9)(x−7)

so x = 7 or x = 9

from this, y = 9 when x = 7 and y = 7 when x = 9

so, the dimension of the rectangle is 9″ by 7″

Answer:

D. none of the above

Step-by-step explanation:

If g(x)=8 is the only equation, then none of the answers are correct. The correct answer would have been 8 because 8=8.

What does the letter "L" stand for in the simulation?

Answer: d

Step-by-step explanation: ion know man but i looked it up and got it right

Answer:

3.249 • 10^-1

Step-by-step explanation:

Answer:

3/10

Step-by-step explanation:

0.4 - 0.1 = x

there are two ways I can find the answer to this question.

Option 1

0.4 - 0.1 = 0.3 then turn it into a fraction which would be 3/10

or I can turn both into fraction and subtract them

4/10 - 1/10 = 3/10

Both ways would give you the same answer!

I hope this helps!!

Please tell me if I have made any mistakes I enjoy learning form them:)

The value of 0.4 - 0.3 = 0.1 and the fractional form is 3/10

What is a Fraction?

An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.

Given data ,

Let the equation be A = 0.4 - 0.1

The value of A = 0.4 - 0.1

                         = 0.3

A = 0.3

Multiply by 10 on both sides , we get

10A = 3

Divide by 10 on both sides , we get

A = 3/10

Hence , the fractional form of 0.3 is 3/10

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Therefore , the solution of the given problem of expressions function comes out to be 20x - 14 is a monomial expression.

Instead of generating estimates at random, variable it is better to use movable numbers, which can be growing, decreasing, or blocking. They could only help one another by sharing tools, information, or solutions to issues equation. An assertion of truth might include defenses, elements, and notations for mathematical operations like additional rejection, synthesis, and mixture.

Here,

Given :

4 expressions.

To find the monomial expression .

Thus , we do this

Hence , monomial expression has 1 power not more than that .

Here we can see,

=> 20x - 14 and 9/x

have power 1 in both of them.

But if we put 9x⁻¹ we get power as -1

.So, 20x - 14 is a monomial expression

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Answer:

The answer will be

1 c

2 e

3 b

4 a

5 d

I assume that z = a

Steps to solve:

7a - (4 + 2)

~Simplify

7a - 6

~Substitute

7(8) - 6

~Multiply

56 - 6

~Subtract

50

Best of Luck!

The question is asking to show that ABC is invertible by introducing a matrix D such that (ABC)D = I and D(ABC) = I.

Option B is correct, as A^-1, B^-1, and C^-1 are all not equal to the identity matrix. To remove A from the left side of the equation, left multiply both sides of the equation by A^-1. This operation results in the equation BCD = A^-1. To remove B and C from the left side of the equation, left multiply both sides of the equation by B^-1C^-1. This results in D = A^-1B^-1C^-1. Thus, the expression for D satisfies (ABC)D = I.

The expression for D found above also satisfies D(ABC) = I, because D(ABC) = DABC = A^-1B^-1C^-1ABC = I by repeated application of the associative property and the definition of inverse matrices. This shows that ABC is invertible.

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Area of a rectangle = height × width

= 5b × 3a

= 15ab

Answer: 2 2/4

Step-by-step explanation:

I’m always correc

Step-by-step explanation:

AM switches to PM at 12 PM.

so, we need to calculate the time from 9:23 am to 12 pm, and then from 12 pm to 2:06 pm, and then add both for the overall answer.

the first full hour after 9:23 am is 10 am. from there it is 2 hours to 12 pm.

how many minutes from 23 minutes to 60 (of the next full hour) ? 60 - 23 = 37 minutes.

so, it is 2 hours and 37 minutes until 12 pm.

and from 12 pm to 2:06 pm it is 2 hours and 6 minutes.

the total time is then

2 hours 37 minutes + 2 hours 6 minutes =

= 2 + 2 hours 37 + 6 minutes = 4 hours 43 minutes

FYI

if the sum of the minutes would have been larger than 60 (like e.g. 53 + 12), then we would have had to add another hour as a carry over, and take the remainder of minutes/60 as minutes.

e.g.

2 hours 53 minutes

3 hours 12 minutes

would sum up to

5 hours 65 minutes = 6 hours 5 minutes

Answer:

Step-by-step explanation:

300

Answer:150 m

Step-by-step explanation:

2cm/25 m = 2 cm: 2500 cm= 1cm:1250 1250x12=15000 convert back to meters 150 m

By applying the Kuhn-Tucker theorem, the maximum value of xy is: 18/25

The constraints are:-4x² - 2xy - 4y²x + 2y ≤ 22x - y ≤ -1

Let us solve this problem by applying the Kuhn-Tucker theorem.

Let us first write down the Lagrangian function:

L = xy + λ₁(-4x² - 2xy - 4y²x + 2y - 2) + λ₂(2x - y + 1)

Then, we find the first order conditions for a maximum:

Lx = y - 8λ₁x - 2λ₁y + 2λ₂ = 0

Ly = x - 8λ₁y - 2λ₁x = 0

Lλ₁ = -4x² - 2xy - 4y²x + 2y - 2 = 0

Lλ₂ = 2x - y + 1 = 0

The complementary slackness conditions are:

λ₁(-4x² - 2xy - 4y²x + 2y - 2) = 0

λ₂(2x - y + 1) = 0

Now, we solve for the above equations one by one:

From equation (3), we can write 2x - y + 1 = 0, which implies:y = 2x + 1

Substitute this in equation (1), we get:

8λ₁x + 2λ₁(2x + 1) - 2λ₂ - x = 0

Simplifying, we get:

10λ₁x + 2λ₁ - 2λ₂ = 0 ... (4)

From equation (2), we can write x = 8λ₁y + 2λ₁x

Substitute this in equation (1), we get:

8λ₁(8λ₁y + 2λ₁x)y + 2λ₁y - 2λ₂ - 8λ₁y - 2λ₁x = 0

Simplifying, we get:

-64λ₁²y² + (16λ₁² - 10λ₁)y - 2λ₂ = 0 ... (5)

Solving equations (4) and (5) for λ₁ and λ₂, we get:

λ₁ = 1/20 and λ₂ = 9/100

Then, substituting these values in the first order conditions, we get:

x = 2/5 and y = 9/5

Therefore, the maximum value of xy is:

2/5 x 9/5 = 18/25

Hence, the required answer is 18/25.

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The standard error of the mean (SEM) is used as the denominator in the

equation for the z-value in a one-sample Z-test.

The formula for the one-sample Z-test is:

z = (sample mean - population mean) / (SEM)

The standard error of the mean (SEM) is used as the denominator in the

equation for the z-value in a one-sample Z-test.

The SEM represents the standard deviation of the sampling distribution of

the mean, which is the distribution of sample means if repeated samples

were taken from the same population. The SEM quantifies the amount of

error that can be expected in the sample mean due to random sampling

variability, and is calculated by dividing the population standard deviation

by the square root of the sample size.

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Answer:

x = 11

z = 86

Step-by-step explanation:

8x + 6 and 10x-16 are vertical angles

Vertical angles are pairs of angles that are opposite each other and have the same vertex, or point of intersection. They are formed when two lines intersect at a point, and are always congruent, or of equal measure.

To solve this equation, we need to isolate the variable x on one side of the equation. To do this, we can start by subtracting 6 from both sides of the equation:

8x + 6 - 6 = 10x - 16 - 6

8x = 10x - 22

Now we can subtract 8x from both sides of the equation:

8x - 8x = 10x - 22 - 8x

0 = 2x - 22

To solve for x, we can add 22 to both sides of the equation:

0 + 22 = 2x - 22 + 22

22 = 2x

Finally, we can divide both sides of the equation by 2 to find the value of x: 22 / 2 = 2x / 2

x = 11

Therefore, the solution to the equation is x = 11.

Now that we have x, z is a supplementary angle to 8x + 6 (or you could do 10x - 16)

Supplementary angles are pairs of angles that add up to 180 degrees. They are formed when two lines intersect at a point, and the angles formed at the intersection are supplementary.

First plug in x, 8x + 6 = 8(11) + 6 = 88 + 6 = 94

180 - 94 = z

z = 86

B. 3

__________________

Question 5

Given

The midrange can be calculated using the formula:

Applying the formula:

Answer: 19.5

Question 6

Given:

Applying the midrange formula:

Answer: 67.5

The width of a parallelogram that has an area of 19.84 square feet and a length of 6.2 feet is 3.2 feet.

A unique variety of quadrilateral called a parallelogram has both pairs of opposite sides parallel and equal. The illustration displays a parallelogram ABCD with the coordinates AB II CD and AD II BC. Moreover, AB = CD and AD = BC.

There are many parallelogram-like shapes and items all around us, whether they be in the form of structures, tiles, or paper. Buildings: When constructing a lot of structures, parallelograms are kept in mind. Hamburg, Germany's Dockland Office Building is a well-known example of this in real life.

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