Suppose a friend of yours wants to buy a crystal candlestick. You remember seeing this item at both Annie's Attic and Betty's Breakables, but you do not remember the price.
What advice should you give your friend in this situation?

Go to Annie's Attic, if the price is above $37.50
Go to Betty's Breakables, 40% off is always better than $15.00 off.
Go to Betty's Breakables, if the price is above $37.50.
Go to Annie's Attic, $15.00 off is always better than 40% off.
Go to Betty's Breakables, if the price is below $37.50.

Answer:

-2y+x

Step-by-step explanation:

x-2y

-2y+x

Answer:

x+2y+x+2

=2x+2y+2

=2(x+y+1)

Step-by-step explanation:

i hope its right

The use of "i" to represent the imaginary unit, which is defined as the square root of -1, is attributed to Leonhard Euler, a Swiss mathematician, and physicist who lived in the 18th century.

The concept of using the imaginary unit "i" to represent the square root of -1 was first introduced by mathematicians in the 16th century, such as Rafael Bombelli and Gerolamo Cardano. However, it was not fully accepted and understood until the 18th century, when mathematicians like Leonhard Euler and Jean-Robert Argand developed the idea of representing complex numbers as points in a 2D plane using the real and imaginary axes. This idea revolutionized the field of mathematics, allowing for the development of complex analysis and leading to important applications in physics, engineering, and other sciences. Today, the use of the imaginary unit is fundamental in many areas of mathematics and its applications.

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Answer:

il faut diviser chaque nombre par 7/3

donc 2 divisé par 7/3

-5 divisé par 7/3 etc

Answer:

its a black square

Step-by-step explanation:

The fraction which should go into the boxes marked A and B in their simplest form is 3/4 and 1/4 respectively.

Total number of fruits Amy has = 10

Number of Apples = 7

Number of Oranges = 3

First random pieces of fruits chosen:

Probability of choosing Apples = 6/9

Probability of choosing Oranges = 3/9

Second random pieces of fruits chosen:

Probability of choosing Apples = 6/8

= 3/4

Probability of choosing Oranges = 2/8

= 1/4

Therefore, the probability of choosing Apples or oranges as the second piece is 3/4 or 1/4 respectively.

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Parentheses are employed to indicate changes to the usual order of operations.

The well-known () symbols, often known as "round brackets," are used in pairs to group things together or designate the order of operations in an equation. You will frequently need to employ brackets in math when forming or resolving equations. They support number grouping and operation definition.

{}, [] are other type of brackets.

In mathematical expressions, parentheses are employed to indicate changes to the usual order of operations (precedence rules). In an expression like, the portion of the expression enclosed in parentheses,, is first assessed, and the outcome is then incorporated into the remaining portions of the expression.

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A 90% confidence interval for the proportion of Americans with cancer was found to be (0.185, 0.210). is a. 0.1975.

The point estimate for a confidence interval is the midpoint of the interval. In this case, the midpoint would be the average of the lower and upper bounds: (0.185 + 0.210) / 2 = 0.1975.

Conclusion: Therefore, the point estimate for the given confidence interval of (0.185, 0.210) for the proportion of Americans with cancer is 0.1975.


To find the point estimate for a confidence interval, you can calculate the average of the lower and upper bounds. In this case, the lower bound is 0.185 and the upper bound is 0.210.

Step 1: Add the lower and upper bounds together: 0.185 + 0.210 = 0.395
Step 2: Divide the sum by 2 to find the average: 0.395 / 2 = 0.1975

Therefore, the point estimate for the 90% confidence interval for the proportion of Americans with cancer is 0.1975 (option a).

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.13 can be expressed in the form of percentage as 13%.

In order to convert numbers in decimal into percentage we only need to multiply the given number with 100 and after multiplying the number with hundred it can be written in percentage form. Like in the question given number is 0.13 and we need to express this in form of percentage. So in order to express this number in percentage we just multiply it with 100 which will be equal to 13% i.e

0.13 x 100 = 13%

By multiplying a decimal value by 100 and adding the percentage (%) sign, you can turn a decimal value into a percentage. A decimal multiplied moves the decimal point two places to the right.

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5

First order equations include linear equations. In the coordinate system, the linear equations are defined for lines. A linear equation in one variable is one in which there is a homogeneous variable of degree 1 (i.e., only one variable). Multiple variables may be present in a linear equation. Linear equations in two variables, for example, are used when a linear equation contains two variables. Examples of linear equations include 2x - 3 = 0, 2y = 8, m + 1 = 0, x/2 = 3, and 3x - y + z = 3.

Total books borrowed = 8+4 = 12

No. of non - fiction books = 7

No. of fiction books = 12 -7

                                    = 5

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The critical points are x = π/4 and x = 3π/4, and the extreme values on the interval [0,2] are 1/2 and -1/2,

To find the critical points of f(x) = 2 sin(x) cos(x) on the interval [0, 2] and determine the extreme values, we will first take the derivative of the function and set it equal to zero to find the critical points.

f(x) = 2 sin(x) cos(x)

f'(x) = 2 cos(x) cos(x) - 2 sin(x) sin(x) (using the product rule)

\(f'(x) = 2(cos^2(x) - sin^2(x))\)

f'(x) = 2(cos(2x))

Setting f'(x) equal to zero to find the critical points, we get:

2(cos(2x)) = 0

cos(2x) = 0

2x = π/2, 3π/2, 5π/2

x = π/4, 3π/4, 5π/4

Only the values x = π/4 and x = 3π/4 are in the interval [0,2], so these are the critical points.

Next, we need to determine the extreme values of f(x) at these critical points and the endpoints of the interval [0,2].

We can do this by evaluating the function at these points and comparing the values.

f(0) = 0

f(π/4) = 2(sin(π/4)cos(π/4)) = sin(π/2)/2 = 1/2

f(3π/4) = 2(sin(3π/4)cos(3π/4)) = -sin(π/2)/2 = -1/2

f(2) = 0

Therefore, the function has a maximum value of 1/2 at x = π/4 and a minimum value of -1/2 at x = 3π/4.

There are no extreme values at the endpoints of the interval [0,2].

Thus, the critical points are x = π/4 and x = 3π/4, and the extreme values on the interval [0,2] are 1/2 and -1/2, respectively.

The final answer is: π/4, 3π/4, 1/2, -1/2

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The distance between the skew lines is 5.39.

K3. Write the scalar equation of the plane with normal vector [1, 2, 1] and passing through the point (3, 2, 1).

The scalar equation of the plane with normal vector [1, 2, 1] and passing through the point (3, 2, 1) is D. 3x+2y+z+8=0.

K4. The parametric equations of a plane are y=1+ |z=1-s Find a scalar equation of the plane.

The scalar equation of the plane is B x-y+z+2

=0.

K5. The equation of a plane is [x. y. 2]

= [-1,-1, 1] + s[1, 0, 1] + [[0, 1, 2].

Find the z-intercept of the plane.

The z-intercept of the plane is 0.K6.

In three-space, find the distance between the skew lines:

[x. y. 2] = [1, -1, 1] + [3, 0, 4] and

[x. y. z]= [1, 0, 1] + [3, 0, -1].

The distance between the skew lines is 5.39.

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Answer:

-2

Step-by-step explanation:

To find the slope we use the formula

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

   = (-3-1)/(0- -2)

  = -4 / (+2)

  = -2

The point that should an open circle be drawn exists (0, 0).

The first equation in the system is f(x) = -x, for x < 0.  

This means when x=0, f(x) = f(0) = 0.

Since we have the inequality x<0, this means at the point (0, 0),

the point will be open and not filled in.

Therefore, the correct answer is option b) (0, 0).

The complete question is:

The function f(x) is to be graphed on a coordinate plane

At what point should an open circle be drawn?

a) (–1, 0)

b) (0, 0)

c) (0, 1)

d) (1, 0)

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The type of sampling that requires giving every part an equal chance of being selected for the sample is called "simple random sampling."

Simple random sampling is a method of selecting a sample from a population where each member has an equal probability of being chosen. In this type of sampling, every part or element of the population is assigned a number or label, and a random process, such as a lottery or a random number generator, is used to select the sample. The main characteristic of simple random sampling is that each member of the population has an equal and independent chance of being selected, without any bias or preference.

This sampling method ensures that every part of the population has an equal opportunity to be included in the sample, making it a fair representation of the entire population. By giving each part an equal chance of being selected, simple random sampling helps to minimize sampling errors and increase the generalizability of the findings to the larger population. It is often used in research studies and surveys when the goal is to obtain an unbiased and representative sample.

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Answer:

D. About 24 years

Answer:

SP = (100-d%)/100 × MP

ans.12.36

Answer:

-242

Just change the sign and you will get the answer

Hope this helps you. Do mark me as brainliest.

Answer:

5.10

Step-by-step explanation:

Answer:

5.10

Step-by-step explanation:

A) If the last digit in the fractional part of 5.096 is less than 5, then simply remove the last the digit of the fractional part.

B) If the last digit in the fractional part of 5.096 is 5 or more and the second digit in the fractional part is less than 9, then add 1 to the second digit of the fractional part and remove the third digit.

C) If the last digit in the fractional part of 5.096 is 5 or more and the second digit in the fractional part is 9, and the first digit in the fractional part is less than 9, then add 1 to the first digit in fractional part and make the second digit in fractional part 0. Then remove the third digit.

D) If the last digit in the fractional part of 5.096 is 5 or more and the second digit in the fractional part is 9, and the first digit in the fractional part is 9, then add 1 to the integer part and make the fractional part 00.

With 5.096, rule C applies and 5.096 rounded to the nearest hundredth is:

5.10

The average depth of the Atlantic Ocean is given by the equation

A = 12,880 feet

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 equation be represented as A

Let the average depth of the Atlantic ocean be A

From the graph the sum of the Atlantic Ocean’s average depth (in feet) and its greatest depth is 43,126 feet

The greatest depth of the Atlantic ocean is D = 30,246 feet

So , the equation will be

A + D = 43,126 feet   be equation (1)

Substituting the values in the equation , we get

A + 30,246 = 43,126

On simplifying the equation , we get

Subtracting 30,246 on both sides of the equation , we get

A = 43,126 - 30,246

A = 12,880 feet

Therefore , the value of A is 12,880 feet

Hence , the average depth is 12,880 feet

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Answer:

6x + 9

Step-by-step explanation:

2(3x + 1) + 7, distribute 2 through the parentheses

↓

6x + 2+7

↓

6x + 9

Hope this helps!:)

Answer:

Answer is a.multiplication.

Step-by-step explanation:

I hope it's helpful!

\(7 \frac{5}{8} + 4 \frac{2}{3} \)

the simplest form.

\( \frac{61}{8} + \frac{14}{3} \)

\( = \frac{(61 \times 3) + (14 \times 8)}{8 \times 3} \)

\( = \frac{183 + 112}{24} \)

\( = \frac{295}{24} \)

\( = 12 \frac{7}{24} \)

hence, the correct answer is option D.

Answer: C

Step-by-step explanation:

For our unknown value x, the opposite side = 10 and the adjacent side = 18, using this information you can use SOH CAH TOA.

TOA refers to opposite over adjacent, which would be

tan x = 10/18.

Hope this helps!

Answer: 28

Step-by-step explanation: 5(4)-4(-2) which is 20+8 and that is 28.

Answer:

No

Step-by-step explanation:

Hope this helps :)

Answer:

a)160

b)300

Step-by-step explanation:

When conducting a hypothesis test, it is important to determine whether it is a one-tailed or two-tailed test. one-tailed because there is only one interaction being studied (between depression and the new drug) so the correct option is B .

In the given scenario, the researcher is testing whether a new drug might make patients either less depressed or more depressed. Since it is not known whether the drug will make patients less or more depressed, there is no specific prediction about the direction of the effect. Therefore, this would be a two-tailed test.

In a two-tailed test, the critical values for the test statistic are calculated in both directions (positive and negative), and the p-value is calculated as the probability of observing a test statistic as extreme or more extreme than the observed value in either direction.

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The expression that can be factored by grouping is pr + ps + qr + qs. We can group the terms into two groups, factor out the common factors from each group, and simplify the expression to get (p+q)(r+s). So, the correct answer is D).

The expression that could be factored by grouping is

pr + ps + qr + qs

To factor this expression by grouping, we can first group the first two terms and the last two terms

(pr + ps) + (qr + qs)

We can then factor out the common factors from each group

pr + ps = p(r+s)

qr + qs = q(r+s)

We can see that both groups have a common factor of (r+s), so we can further simplify the expression

(p+q)(r+s)

Therefore, the final factored form of the expression pr + ps + qr + qs is (p+q)(r+s).

None of the other expressions given can be factored by grouping.

For pq + ps - pr + pt, we cannot group any two terms that have a common factor. For pq + rs - pq + rs, we can simplify it as 2rs, but it cannot be factored by grouping. For pr + ps - qr - qs, we cannot group any two terms that have a common factor. So, the correct option is D).

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Answer:

       \(\frac{2}{7}\)

Step-by-step explanation:

3.5 = \(\frac{7}{2}\)

swap the numerator and denominator (flip the fraction):

reciprocal of \(\frac{7}{2}\) is \(\frac{2}{7}\)

The maximum purchase price per unit of the component that Ms. Alexander should negotiate with her supplier is $19.00, which is equal to the variable cost per unit to manufacture the part in-house.

In this scenario, Ms. Alexander needs to determine the maximum price per unit that she should be willing to pay the supplier for the component. She conducted a cost analysis and found that manufacturing the part in-house would require $450,000 in capital equipment and have a variable cost of $19.00 per unit.

Since there is no fixed cost associated with purchasing the component from the supplier, the maximum purchase price per unit should not exceed the variable cost per unit of manufacturing in-house. This ensures that the company does not incur additional costs by outsourcing the component.

Therefore, Ms. Alexander should negotiate a price with the supplier that is equal to or lower than the variable cost per unit, which is $19.00. By doing so, the company can avoid the initial capital investment and ongoing variable costs associated with in-house production, making it more cost-effective to purchase the component from the supplier.

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