Rachel created 215 pairs of earrings. Material for the earrings were $0.25 a pair. At a craft fair rachel sells all 215 pairs of earrings and ends up with $3272.30. After factoring out the cost of materials how much money did rachel make on 1 pair of earrings.

Answer:

Step-by-step explanation:

When x =3 y=-1

X =2 y =0

X=0 y =3

X = -1 y=6

So c g d f true

Answer:

F

Step-by-step explanation:

Answer:

the answer for line one for the sides ar DCB

Step-by-step explanation:

The chord length (C) between PC and P is 5.831 cm.

A chord is a straight-line segment that connects two points on a circle. P is a point on the circumference of the circle, while PC is a chord of the circle that passes through P.

Therefore, the chord length (C) between PC and P is equal to half of the length of the chord PC. In other words, we need to find the length of PC and divide it by 2. We can do this using the Pythagorean Theorem since we have a right triangle formed by PC and the diameter of the circle.

Diameter of the circle (AB) = 20 cm

Radius of the circle (OA) = AB/2 = 10 cm

Height of the triangle (OP) = 6 cm

Using the Pythagorean Theorem, we can find the length of PC as follows:

PC² = PO² + OC²PC² = 10² + 6²PC² = 136PC = √136PC ≈ 11.661

Therefore,  is equal to C = PC/2C = 11.661/2C ≈ 5.831 cm.

So, the answer to the question "What is the chord length (C) between PC and P? when the diameter of the circle = 20 cm and the Height of the triangle = 6cm" is 5.831 cm.

You can learn more about chord length at: brainly.com/question/29200017

#SPJ11

The area covered by a sprinkler that sprays water in a circle of an 8-foot radius is 200.96 square feet.

Circle is a 2-Dimensional shape. It has no vertex and edges. It has a center point which equidistant from any point of boundary or circumference of a circle.

Radius refers to the distance between the center and any point on the boundary or circumference of the circle.

The area of a circle is given as the product of a constant pi and the square of the radius.

A =  π\(r^2\)

A is the area

r is the radius

r = 8 feet

A = π * 8 * 8

= 3.14 * 8 * 8

= 200.96 square feet

Learn more about Circle:

https://brainly.com/question/12269818

#SPJ4

No, the presence of an effect does not necessarily imply that error variance will go away.

The presence of an effect does not necessarily imply that error variance will go away. In fact, error variance is an inherent part of any statistical model and represents the amount of variation in the response variable that is not explained by the predictor variables.

Even if a predictor variable has a significant effect on the response variable, there may still be some unexplained variation in the response that is attributable to error variance.

It is important to take into account and control for error variance in any statistical analysis, as it can affect the precision and accuracy of the estimates of the model parameters and can also influence the interpretation of the results.

One way to control for error variance is to use appropriate statistical methods, such as analysis of variance (ANOVA), regression analysis, or other modeling techniques that take into account the variability in the data.

Learn more about error variance

brainly.com/question/31592090

#SPJ11

want to come up down to gotta amen Cheech jjk

ANSWER

STEP-BY-STEP EXPLANATION

Given information

To graph the above function, we need to find the y-intercept and x-intercept

Step 1: Make y = 0 to find the x-intercept

Step 2: Make x= 0 to find y-intercept

Step 3: Graph the solution

Using area of rectangle formula and quadratic equation, she needs to increase each dimension by 6 feet.

The area of a rectangle (A) is the product of its length 'l' and width or width 'w'. This implies that area of rectangle = (l × w) square units.

In the problem given, we have;

The area of this rectangle = 18 * 12 = 216ft²

However, the length and width is increased to have twice the area

Let's write an equation for this.

2 * 216 = (18 + x) * (12 + x)

x = increase in both length and width

432 = (18 + x) * (12 + x)

432 = x² + 30x + 216

x² + 30x + 216 - 432 = 0

x² + 30x - 216 = 0

Solving the quadratic equation;

x = 6

She increase the dimension by 6 feet.

Learn more on area of rectangle here;

https://brainly.com/question/25292087

#SPJ1

Answer: W = 2/L

Isolate the variable by dividing each side by factors that don't contain the variable.

Gaussian elimination with partial pivoting can fail due to rounding errors or when a pivot element is very close to zero.

Without knowing the specific system of equations, it is not possible to determine at what point the Gaussian elimination process with partial pivoting would fail using exact arithmetic.

In the latter case, the algorithm can fail to find a suitable pivot and the elimination process can become unstable. This is known as a singularity or numerical instability.

To prevent this, in practice, pivoting strategies are used to avoid dividing by small or zero pivot elements. Additionally, high-precision arithmetic can be used to reduce the impact of rounding errors.

For more similar questions on Gaussian elimination:

https://brainly.com/question/13266528

#SPJ11

Answer:

\(\frac{a}{1 +bc} = x\)

Step-by-step explanation:

In this question, it appears that you need to solve this equation in terms of x.

Beginning with the equation a = x(1 + bc), we must isolate the 'x' variable and make an equation equivalent to 'x'. This can be done by:

a = x(1 + bc)

Divide (1 + bc) from both sides, giving you:

\(\frac{a}{1 +bc} = x\)

Answer:

c. What is your favorite book?

Explanation:

A question is said to be biased when it is asked in such a way that it leads or skews people intentionally to a particular answer.

Looking at the given questions in the options, we can see that three of them have a particular person or thing mentioned in the question. These are examples of biased questions.

But the question, "What is your favorite book?" does not suggest a name of a particular book to the respondent which could influence their responses. This type of question is not biased.

Answer: The units of g are meters/second^2

Step-by-step explanation: The distance fallen by a falling object is modeled by the equation s=1/2gt^2, where g is the acceleration due to gravity. The units of s are meters and the units of t are seconds. Therefore, the units of g can be found by rearranging the equation to solve for g, which gives g=2s/t^2. Substituting the units of s and t, we get g=2 meters/second^2.

Therefore, the units of g are meters/second^2.

In order to know if a triangle is a right triangle on a coordinate plane, you can find the lengths of all three sides of the triangle using the distance formula and apply the Pythagorean theorem.

Find the lengths of the three sides of the triangle using the distance formula.

Once you have the lengths of the sides, check if any of the three sides satisfy the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides. In other words, if a² + b² = c², where c is the longest side, then the triangle is a right triangle.

If one of the sides satisfies the Pythagorean theorem, then the triangle is a right triangle.

Learn more about triangle on

https://brainly.com/question/17335144

#SPJ1

Answer:

greater than

hope this helps! <3

The value of c 0.097 can satisfy the probability condition p(z ≤ c) = 0.52.

We need to find a value of c such that the probability of a standard normal random variable, Z, being less than or equal to c is 0.52, i.e., P(Z ≤ c) = 0.52.

We can use a standard normal table or a calculator to find the value of c that corresponds to a probability of 0.52. For example, using a calculator or a table, we can find that the 0.52 percentile of the standard normal distribution is approximately 0.097.

Therefore, we have:

P(Z ≤ c) = 0.52

c = 0.097 (from the standard normal table or calculator)

So, the value of c that satisfies the given probability condition is approximately 0.097.

Know more about probability here:

https://brainly.com/question/30034780

#SPJ11

To duplicate angle ABC, draw a line segment, position the compass on point A, and then draw an arc that intersects the line segment. Next, position the compass on point B, and then draw a second arc that intersects the first arc at a point on the line segment. Finally, position the compass on the point where the two arcs intersect, but without changing the width, and draw a third arc that intersects the line segment.

When two straight lines or rays intersect at a single endpoint, an angle is created. The vertex of an angle is the location where two points come together. The Latin word "angulus," which means "corner," is where the term "angle" originates.

Common instruments used to measure angles are:

1. Protractor

2.Compass

3.Digital Angle finder

4.Angle finder

5.Clinometer

6. Inclinometer

You can take the following actions to copy angle ABC:

Create a line segment that will serve as the foundation for the new angle you're going to create.

Draw an arc that crosses the line segment you produced in step 1 by positioning the compass on point A.

Draw a second arc that crosses the previous arc at a point on the line segment by setting the compass on point B.

Place the compass on the intersection of the two arcs without adjusting the compass's width, then create another arc that crosses the line segment.

Point D is where the second arc crosses the line segment. To finish the new angle, join points D and C.

To learn more about angles visit:

https://brainly.com/question/29128584

#SPJ4

Answer:

The answer is

Step-by-step explanation:

Interchange the terms

That's x becomes y and y becomes x

Next solve for y

Send 2 to the other side of the equation

\( {2y}^{2} = x - 2\)

Divide both sides by 2

Find the square root of both sides to make y stand alone

That's

We have the final answer as

Hope this helps you

Answer:

6 desserts

Step-by-step explanation:

3/4 is equal to 6/8, if you use 1/8 for each dessert you will have 6

The approximate number of times the app was downloaded after 12 weeks are 940.

A new app was download 175 times in the first week.

The number of downloads has increased continuously by 16.5% each week.

We have to determine the approximate number of times the app was downloaded after 12 weeks.

Number of times the app was downloaded after 12 weeks = Total download of new app in first week × [1 + (% increased in download/100)]ⁿ⁻¹

From the question;

Total download of new app in first week = 175 times

% increased in download = 16.5%

n = total number of week = 12

Now put the value

Number of times the app was downloaded after 12 weeks = 175 × [1 + (16.5/100)]¹²⁻¹

Number of times the app was downloaded after 12 weeks = 175 × [1 + 0.165]¹¹

Number of times the app was downloaded after 12 weeks = 175 × [1.165]¹¹

Number of times the app was downloaded after 12 weeks = 175 × 5.37

Number of times the app was downloaded after 12 weeks = 939.75

Number of times the app was downloaded after 12 weeks = 940 times approx.

To learn more about compound interest link is here

brainly.com/question/29335425

#SPJ4

Answer:

d.-2,-8,-14,20,-26

Step-by-step explanation:

The distance between the building and the ladder is 34.876 foot.

A triangle in which one of the angle measure is equal to 90 degree is called a right triangle.

The ladder forms a right triangle with the building and the ground,

The length of the triangle is 40 foot

The angle made by the ladder is 29.32 degree

By using Trigonometric Ratios

cos 29.32 = Base /  Hypotenuse

cos 29.32 = Base / 40

0.8718 × 40 = Base

Base = 34.876 foot

Base is the distance between the building and the ladder.

Base of the ladder = 34.876 foot

To learn more about trigonometric functions from the given link

https://brainly.com/question/24336684

#SPJ4

Step-by-step explanation:

fair coin is two sided Head H and Tail T

thrown 3 times

number of sample space n(s)=2³=>8

sample space (s)={HHH,HHT,HTH,HTT,THH,TTH,THT,TTT}

no of a head and two tails= 3/8

To prove that f has a relative minimum at c, we can use the First Derivative Test. The First Derivative Test states that if a function is differentiable on an interval and the derivative changes sign from negative to positive at a point within that interval, then that point is a relative minimum.

Given that f is continuous on the interval I = [a, b], differentiable on (a, c) and (c, b), and that f'(x) ≤ 0 for c − δ < x < c and f'(x) ≥ 0 for c < x < c + δ, we can proceed with the proof:

Consider the left neighborhood of c, (c - δ, c). Since f is differentiable on (a, c), we can apply the Mean Value Theorem (MVT) on this interval. According to the MVT, there exists a point d between a and c such that f'(d) = (f(c) - f(a))/(c - a).

Since f'(x) ≤ 0 for c − δ < x < c, it follows that f'(d) ≤ 0. This implies that f(c) - f(a) ≤ 0.

Consider the right neighborhood of c, (c, c + δ). Applying the MVT again, there exists a point e between c and b such that f'(e) = (f(b) - f(c))/(b - c).

Since f'(x) ≥ 0 for c < x < c + δ, it follows that f'(e) ≥ 0. This implies that f(b) - f(c) ≥ 0.

Combining the inequalities from steps 2 and 4, we have f(b) - f(c) ≥ 0 ≥ f(c) - f(a).

Since f(b) - f(c) ≥ 0 ≥ f(c) - f(a), it follows that f(b) ≥ f(c) ≥ f(a).

Therefore, f(c) is a relative minimum because it is smaller than or equal to the function values at both endpoints of the interval I = [a, b].

In conclusion, based on the given conditions and the application of the First Derivative Test, we have shown that f has a relative minimum at c.

To know more about First Derivative Test, visit :

https://brainly.com/question/29753185

#SPJ11

The process standard deviation is mathematically given as

Standard deviation = 0.25

Generally, the equation for is mathematically given as

Process capability ratio,

Cp = \(\frac{USL - LSL}{ 6*\sigma}\)

Upper specifications USL= 10 min

Lower specifications LSL= 8 min

Standard deviation as  \(\sigma\)

Therefore,

Cp = (10-8)/ 6*\(\sigma\)

1.33 = (10-8)/ 6*\(\sigma\)

\(\sigma\) = 0.25

In conclusion, the process standard deviation is

\(\sigma\) = 0.25

standard deviation = 0.25

Read more about standard deviation

https://brainly.com/question/16555520

#SPJ4

The value of quadratic function is,

⇒ y = 9x² + 54x - 63

An algebraic equation with the second degree of the variable is called an Quadratic equation.

We have to given that;

The equation is,

⇒ y = 9 (x - 1) (x + 7)

Now, We can find the quadratic equation as;

⇒ y = 9 (x - 1) (x + 7)

⇒ y = 9 (x² + 7x - x - 7)

⇒ y = 9 (x² + 6x - 7)

⇒ y = 9x² + 54x - 63

Learn more about the quadratic equation visit:

brainly.com/question/1214333

#SPJ1

Answer:

-13

Step-by-step explanation:

3x-5x+10=35

-2x+10=36

-2x=36-10

-2x\-2=26\-2

x=-13

Answer: 360

Step-by-step explanation:

done