Can you please help please please help me with this question please and i will give you a Brainiest

Answer:

  12.6 ft

Step-by-step explanation:

Trig functions relate the sides and angles in a right triangle. Here, we're given an angle and an adjacent side, and we're asked to find the hypotenuse. The relevant trig relation is ...

  Cos = Adjacent/Hypotenuse

  cos(50°) = DE/CD = (8.1 ft)/CD

Solving for CD, we find ...

  CD = (8.1 ft)/cos(50°) ≈ 12.601 ft

The length of CD is about 12.6 feet.

The ordered pair (2, 2) and (3,1) is in the solution set of the inequality 12x - 28y < 56.

Let's consider the ordered pair (3, 1). To check whether this ordered pair is in the solution set of the inequality, we need to substitute x = 3 and y = 1 into the inequality as follows:

12(3) - 28(1) < 56

Simplifying this expression, we get:

36 - 28 < 56

8 < 56

This is a true statement, which means that the ordered pair (3, 1) is in the solution set of the inequality 12x - 28y < 56.

Now, let's consider another ordered pair, say (2, 2). To check whether this ordered pair is in the solution set of the inequality, we need to substitute x = 2 and y = 2 into the inequality as follows:

12(2) - 28(2) < 56

Simplifying this expression, we get:

24 - 56 < 56

-32 < 56

To know more about inequality here

https://brainly.com/question/28823603

#SPJ4

Step-by-step explanation:

A. cos4x-sin4x=2-cos2x

To find the z-score for a sales associate who earns $37,500, we can use the formula:

z = (x - μ) / σ

Where:

x is the value we want to convert to a z-score (in this case, $37,500),

μ is the mean of the distribution (in this case, $32,500), and

σ is the standard deviation of the distribution (in this case, $2,500).

Substituting the given values into the formula, we have:

z = (37,500 - 32,500) / 2,500

z = 5,000 / 2,500

z = 2

Therefore, the z-score for a sales associate who earns $37,500 is 2.

To learn more about mean visit;

brainly.com/question/31101410

#SPJ11

The z-score for a sales associate earning $37,500 in a system where the mean salary is $32,500 and the standard deviation is $2,500 has a z-score of 2. This score indicates that the associate's salary is two standard deviations above the mean.

The z-score represents how many standard deviations a value is from the mean. In this case, the value is the salary of a sales associate, the mean is the average salary, and the standard deviation is the average variation in salaries.

We calculate the z-score by subtracting the mean from the value and dividing by the standard deviation, like so:

Z = (Value - Mean) / Standard Deviation

So, the z-score for an associate earning $37,500 would be:

Z = ($37,500 - $32,500) / $2,500

This gives us a z-score of +2, indicating that a salary of $37,500 is two standard deviations above mean.

https://brainly.com/question/34836468

#SPJ12

Answer:

The whole slices of the cakes of Luke, Kira and Ali are 6, 9 and 12 respectively. So it is possible.

Step-by-step explanation:

It's possible because they cut cakes into different number of slices.

You know that Luke, Kira and Ali each served \(\frac{2}{3}\) of their own cake and Luke served 4 slices, Kira served 6 slices and Ali served 8 slices.

Being x the whole slices of cake, and if Luke served \(\frac{2}{3}\) of his cake, which are 4 slices, the whole slices of cake of Luke is:

\(\frac{2}{3}*x=4 slices\)

Solving:

x= 4 ÷\(\frac{2}{3}\)

x= 6

Then, whole slices of Luke's cake is 6.

Performing the same approach for Kira you get:

\(\frac{2}{3}*x=6 slices\)

x= 6 ÷\(\frac{2}{3}\)

x= 9

Then, whole slices of Kira's cake is 9.

Finally, performing the same approach for Ali you get:

\(\frac{2}{3}*x=8 slices\)

x= 8 ÷\(\frac{2}{3}\)

x= 12

Then, whole slices of Ali's cake is 12.

The whole slices of the cakes of Luke, Kira and Ali are 6, 9 and 12 respectively. So it is possible.

To administer 1 gram of the medication, you would need to give approximately 1.714 milliliters.

To determine the number of milliliters to administer in order to give 1 gram of medication, we need to convert the units appropriately.

Given that the medication is available in 350,000 micrograms per 0.6 ml, we can set up a proportion to find the equivalent amount in grams:

350,000 mcg / 0.6 ml = 1,000,000 mcg / x ml

Cross-multiplying and solving for x, we get:

x = (0.6 ml * 1,000,000 mcg) / 350,000 mcg

x = 1.714 ml

Therefore, to administer 1 gram of the medication, you would need to give approximately 1.714 milliliters.

for such more question on proportion

https://brainly.com/question/870035

#SPJ8

As per the mentioned informations, the cash paid for rent during 2014 is calculated to be  $395,000. So, the correct  answer is option (C) i.e. $395,000.

To calculate the cash paid for rent during 2014, we need to use the information given in the problem and apply the following formula:

Cash paid for rent = Rent expense + Prepaid rent at the beginning of the period - Prepaid rent at the end of the period

Substituting the values given in the problem, we get:

Cash paid for rent = $420,000 + $70,000 - $95,000

Cash paid for rent = $395,000

Therefore, it can be concluded that the correct answer is (C) $395,000.

Learn more about Cash :

https://brainly.com/question/13226199

#SPJ4

Joint density function is as follows: \(f(x, y) = 16y\ x3 , x > 2, 0 \leq y \leq 1\).

We need to find the marginal density function of X. Using the formula of marginal density function, \(f_X(x) = \int f(x, y) dy\)

Here, bounds of y are 0 to 1.

\(f_X(x) =\int 0 1 16y\ x3\ dyf_X(x) \\= 8x^3\)

Now, the marginal density function of X is \(8x^3\).

Marginal density function helps to find the probability of one random variable from a joint probability distribution.

To find the marginal density function of X, we need to integrate the joint density function with respect to Y and keep the bounds of Y constant. After integrating, we will get a function which is only a function of X.

The marginal density function of X can be obtained by solving this function.

Here, we have found the marginal density function of X by integrating the given joint density function with respect to Y and the bounds of Y are 0 to 1. After integrating, we get a function which is only a function of X, i.e. 8x³.

The marginal density function of X is \(8x^3\).

To know more about marginal density visit -

brainly.com/question/30651642

#SPJ11

For a two-tailed hypothesis test about μ, we can use any of the following approaches except comparing the level of significance; to the confidence coefficient

To determine if the sample mean is substantially more than or significantly less than the population mean, a two-tailed hypothesis test is used. The area under both tails or sides of a normal distribution is what gives the two-tailed test its name.

Any of the following methods, with the exception of comparing the level of significance to the confidence coefficient, can be used for a two-tailed hypothesis test regarding. To create a confidence interval estimate for the population mean, approach (d) compares the level of significance which is a to the confidence coefficient which is 1- a. This method is employed to estimate the population parameter rather than test a hypothesis.

Complete Question:

For a two-tailed hypothesis test about μ, we can use any of the following approaches EXCEPT compare the _____ to the _____.

a.confidence interval estimate of μ; hypothesized value of μ

b.p-value; value of α

c.value of the test statistic; critical value

d.level of significance; confidence coefficient

Read more about two-tailed hypothesis on:

https://brainly.com/question/29641971

#SPJ4

The moment of inertia of the plate with respect to the x-axis is approximately 101.5. The units will depend on the units used for the limits of integration.

Moment of inertia is a measure of an object's resistance to rotational motion around an axis. It is the sum of the products of each particle's mass with the square of its distance from the axis of rotation. The moment of inertia depends on the shape and mass distribution of the object. It is often denoted by the symbol I and has units of kg·m² in the SI system.In the given question,

To find the moment of inertia of a plate, we integrate the product of the density, the distance from the axis of rotation, and the differential area element over the region of interest.

In this case, we want to find the moment of inertia of a plate covering the first-quadrant region bounded by y² = x, x = 4, and the x-axis with respect to the x-axis.

First, we need to find the limits of integration for x and y. From the equation y² = x, we can see that y ranges from 0 to 2, and x ranges from 0 to 4.The density of the plate is not given,

so we will assume a constant density of 1.Next, we need to find the distance from the x-axis for each point on the plate.

Since we are rotating around the x-axis, the distance from the x-axis is simply y.

Finally, we need to find the differential area element. Since the region is in the first quadrant, we can use

\(dA = dy*dx.\)

Putting it all together, the moment of inertia is:

\(I = \iint_{D} y^2 \, dy \, dx\)The limits of integration are:0 ≤ y ≤ 20 ≤ x ≤ 4

We can integrate with respect to y first,

since that is the inner integral:

\($\begin{aligned}I &= \int_{0}^{4} \int_{0}^{2} (1) \, dy \, dx \\&= \int_{0}^{4} \left[ y \right]_{0}^{2} \, dx \\&= \int_{0}^{4} x^{3/2} \, dx \\&= \left( \frac{16}{5} \right) x^{5/2} \bigg|_{0}^{4} \\&= \left( \frac{16}{5} \right) (4^{5/2} - 0) \\&\approx 101.5\end{aligned}\)

Therefore, the moment of inertia of the plate with respect to the x-axis is approximately 101.5. The units will depend on the units used for the limits of integration (e.g. cm⁴, m⁴, etc.).

To know more about moment of inertia ,visit:

brainly.com/question/15246709

#SPJ1

Answer:

False.

Step-by-step explanation:

In a normal distribution, 95% of the data falls within 2 standard deviations of the mean.

False, In a normal distribution, 95% of the data do not falls within 1 standard deviation of the mean.

The empirical rule or 68-95-99.7% rule can give us a good info about normal distribution.

This rule tells us that around 68% of the data will fall within one standard deviation of the mean, whereas around 95% will fall within two standard deviations of the mean and 99.7% will fall within three standard deviations of the mean.

Here given that, in a normal distribution, 95% of the data falls within 1 standard deviations of the mean, which is wrong because in the above description we states that, 95% will fall within two standard deviations of the mean.

So, the given statement is false.

Learn more about standard deviation here :

https://brainly.com/question/27798849

#SPJ2

Answer:

D. 36 units

Step-by-step explanation:

credit to user  calculista

The inequality that describes the given number line graph is

-1 ≤ x < -∞

It shows a relationship between two numbers or two expressions.

There are commonly used four inequalities:

Less than = <

Greater than = >

Less than and equal = ≤

Greater than and equal = ≥

We have,

The line graph shows that the value is between -1 and -∞.

The inequality that describes the graph.

-1 ≤ x < -∞

Thus,

-1 ≤ x < -∞ is the inequality of the graph.

Learn more about inequalities here:

https://brainly.com/question/20383699

#SPJ1

The diameter of the small volcano 'Pico' would be = 8km

An isoline is defined as the line found on a map that has constant value of either distance, temperature or rainfall.

The isoline that is used in the given map above = 2000m.

The number of lines that surrounds the pico volcano = 4

Therefore the diameter of the volcano = 2000×4 = 8000m

But 1000m = 1km

8000m = 8km

Learn more about diameter here:

https://brainly.com/question/30460318

#SPJ4

Answer:

X+y over y

Step-by-step explanation:

X+y over y

Hope it helps

Let's denote the radius of the red circle by r, then the circumference of the red circle is 2πr. We know that the perimeter of the red circle is 37.7 inches, so:

2πr = 37.7

Solving for r, we get:

r = 37.7 / (2π) = 6.002 inches (rounded to three decimal places)

The radius of the yellow circle is 6 inches larger than the radius of the red circle, so:

r_yellow = r_red + 6 = 12.002 inches

Therefore, the circumference of the yellow circle is:

2πr_yellow = 2π(12.002) = 75.4 inches (rounded to one decimal place)

So the perimeter of the next-largest (yellow) circle is approximately 75.4 inches.

Learn more about Circumference here:- brainly.com/question/27447563

#SPJ11

When printing a newspaper, you are most likely to use a line screen setting of 85 lpi (lines per inch).

Yes, the equation \((cos 2x + sin 2y)^2 = 1\)+ sin 4x is an identity.

The given equation is \((cos 2x + sin 2y)^2 = 1 +\)sin 4x. To verify that it is an identity, we need to expand the expression on the left side without applying any trigonometric identities. By using the binomial expansion, we have \((cos 2x)^2 + 2(cos 2x)(sin 2y) + (sin 2y)^2.\)

Next, we can rearrange the terms in the expression to obtain (\(cos^2 2x) + 2(cos 2x)(sin 2y) + (sin^2 2y).\) Now, applying the Pythagorean identity sin^2 θ + cos^2 θ = 1, we can replace \((cos^2 2x) and (sin^2 2y) with 1 - sin^2 2x and 1 - cos^2 2y\) respectively.

After substitution, we get 1 - \(sin^2 2x + 2(cos 2x)(sin 2y) + 1 - cos^2 2y.\)Simplifying further, we have \(2 - sin^2 2x - cos^2 2y + 2(cos 2x)(sin 2y)\). Applying the Pythagorean identity again, \(sin^2 θ + cos^2 θ = 1\), we can simplify the equation to\(2 + 2(cos 2x)(sin 2y).\)

Now, we can observe that 2 + 2(cos 2x)(sin 2y) is equivalent to 1 + sin 4x, which was the right side of the original equation. Therefore, we can conclude that the equation (c\(os 2x + sin 2y)^2 = 1 +\) sin 4x is an identity.

Learn more about trigonometric identities

brainly.com/question/31837053

#SPJ11

Step-by-step explanation:

REMEMBER D/S×T (triangle)

therefore, finding time

D/S

80/24

make sure to press the degrees button on your calculator

3 hours and 20 minutes

Answer:

4.2 or 21/5.

Note:

Please mark as Brainiliest! <3

Answer:

3.82 X 10 to the sixth power

Step-by-step explanation:

Answer:

x² + 4x - 12

Step-by-step explanation:

Roots: -6 and 2

Leading coefficient: x²

(x + 6)(x - 2)

x(x - 2) + 6(x - 2)

x² - 2x + 6x - 12

x² + 4x - 12

I hope this helps!

Answer:

56cm

Step-by-step explanation:

\(2.464 {cm}^{2} = 22 \times {r}^{2} \)

\( {r }^{2} = 2.646 = 784\)

\(r = \sqrt{784} = 28\)

\( 2×28 \)

\(\boxed{\green{Diameter}{ = 56cm}}\)

The statement "The height of the probability density function f(x) of the uniform distribution defined on the interval [a, b] is 1/(a-b)" is False.

In a uniform distribution, the probability density function (PDF) is constant within the interval [a, b]. The height of the PDF represents the density of the probability distribution at any given point within the interval. Since the PDF is constant, the height remains the same throughout the interval.

To determine the height of the PDF, we need to consider the interval length. In a uniform distribution defined on the interval [a, b], the height of the PDF is 1/(b - a) for the PDF to integrate to 1 over the entire interval. This means that the total area under the PDF curve is equal to 1, representing the total probability within the interval [a, b].

Therefore, the correct statement is that the height of the probability density function f(x) of the uniform distribution defined on the interval [a, b] is not 1/(a - b), but rather it is a constant value necessary for the PDF to integrate to 1 over the interval, i.e., 1/(b - a).

Learn more about  uniform distribution here:

https://brainly.com/question/32291215

#SPJ11

Answer:

scale factor of 2

Step-by-step explanation:

multiplication go brrrr

Answer:

a

Step-by-step explanation:

It looks like you have provided three different chemical reactions in your question.

The first reaction can be written as:

2H3(g) + C4H4(g) -> 3H2(g) + HCN(g)

The second reaction can be written as:

H3(g) + C4H4(g) -> 6H2(g) + HCN(g)

The third reaction can be written as:

H3(g) + C4H4(g) -> 3H2(g) + HCN(g)

In all of these reactions, hydrogen gas (H2) and hydrogen cyanide (HCN) are produced. The reactants and the specific conditions of the reaction determine the exact proportions of the products formed. It is not clear what the reactants H3 and C4H4 represent or what the conditions of the reaction are, so it is difficult to say anything more about these reactions without more information.

A balanced chemical reaction equation reveals the reactants' and products' molecular relationships. Chemical reaction equations disclose the reactants' and products' molecular relationships. Frequently, the reaction's energy level is stated. It is known as reaction stoichiometry to deal with the quantitative side of chemical processes.

To know more about  reaction equation visit:

https://brainly.com/question/3588292

#SPJ4

Answer:

It is the third one for edge

Step-by-step explanation:

I tried and got it correct

In order for the associate to meet her objective of making at least $800, she must sell at least $17,500 worth of jewelry.

We must figure out how many sales are necessary to get that income.

Let's write "S" to represent the sales amount.

The associate's base pay is $450 per week, and she receives a commission of 2% of her sales. Her commission is therefore equal to 0.02S (2% of sales), which can be computed.

The total income must be at least $800 in order for her to fulfill her goal. As a result, we may construct the equation shown below:

Base Salary + Commission ≥ Goal

$450 + 0.02S ≥ $800

Now, we can solve the inequality to find the minimum sales amount:

0.02S ≥ $800 - $450

0.02S ≥ $350

Divide both sides by 0.02 to isolate 'S':

S ≥ $350 / 0.02

S ≥ $17,500

Therefore, In order for the associate to meet her objective of making at least $800, she must sell at least $17,500 worth of jewelry.

Learn more about inequality here : brainly.com/question/24372553

#SPJ1

Step-by-step explanation:

code:- 2574030731

pass:- HELLO

Z●●M