Find BC.


………………………………

Answer:

Diameter is equal to twice the radius. Given, radius is 4 cm. Diameter = 2(4) = 8 cm. Hence, diameter of the circle with radius as 4 cm is 8 cm.

Step-by-step explanation:

please

give brianliest

Answer: Area = 0

Step-by-step explanation:

((2*2)*3.14)-(4*3.14) = 0

Answer:

y=-2/3

x=-20/3

A test for two proportions and the null hypothesis would be the best test statistic to assess the variance in bacon consumption from 2011 to 2016.

The null hypothesis for the test is that the proportion of adults who consumed at least 3 pounds of bacon in 2011 is equivalent to the proportion of adults who consumed at least three pounds of bacon in 2016.

A potential explanation would be that the percentage of adults who ate at least 3 pounds of bacon in 2011 and 2016 differed.

Additionally, the test statistic may be likened to a chi-squared distribution with one degree of freedom; hence, it is necessary to compute the test statistic's p-value in order to establish whether the null hypothesis can be ideally rejected or not.

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Answer: ???

Step-by-step explanation: There is no table shown.

Answer:

The table shows the relationship between the number of parents in a household and the number of children in the same household. Is the number of children proportional to the number of parents in the household?

Step-by-step explanation:

Answer:

y = -1/4x -1

Step-by-step explanation:

Mathematically, we have the slope intercept form as;

y = mx + b

where m is the slope and b is the y-intercept

from the question;

m is -1/4

So we have :

y = -1/4x + b

To get the value of b, we substitute the coordinates given and solve for b

Firstly, multiply through by 4

That will

give ;

4y = -x + 4b

4(-4) = -12 + 4b

-16 = -12 + 4b

-16 + 12 = 4b

4b = -4

b = -4/4

b = -1

So the equation in the slope intercept form is;

y = -1/4x -1

Answer:

x=7

Step-by-step explanation:

write -2+16x+9x+7=180

then add all like terms (-2+7=5) and (16x+9x=25x)

5+25x=180

-5. -5

25x=175

/25. /25

x=7

Answer:

180=-2+16x+9x+7

180=25x+5

-5. -5

175=25x

175/25=25x/25

7= x

Step-by-step explanation:

Answer:

B) Inside the nucleus of an atom are protons and electrons.

Explanation:

Inside the nucleus of an atom are protons and neutrons. Electrons orbit (kind of?) away from the nucleus.

Answer:

14

Step-by-step explanation:

Substitute -2 for x in the two places where x occurs:

              8

(-2)^2 - ------- + 6    =    4 + 4 + 6  =  14

              -2

Answer:

make me brain list

thank u

Step-by-step explanation:

The probability of P(Boy/Senior) is 2/37.

Given that, the total number of students=37 and the number of senior boys=2.

P(A|B)=P(A ∩ B)/P(B).

We need to find P(Boy/Senior).

P(A ∩ B) indicates the probability of A and B, or, the probability of A intersection B means the likelihood of two events simultaneously, i.e. the probability of happening two events at the same time.

Now, P(Boy/Senior)=2/37.

Therefore, the probability of P(Boy/Senior) is 2/37.

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Answer:

2/7

Step-by-step explanation:

2 seniors / 7 seniors in total

Answer:

Fraction: 75/100

Percent: 75%

Ratio: 75:100

It's important to know that the sum of two opposite numbers is zero because opposite numbers have the same absolute value but opposite sign, for example, 2 and -2 are opposite numbers.

The correct number line must have its final position on zero.

Notice that the number line A shows -5 as the initial number and then goes back 5 units to zero.

Answer:

below

Step-by-step explanation:

-3x² + 6x + 6 = 0

x = (-b±√(b²-4ac))/2a

x = (-6±√(36 - 4(-3)(6)))/2(-3)

x = (-6±√108)/-6

x = 1 ± √3

The negative solution is not reasonable for he threw it forwards

Answer:

x= 25+20y

Step-by-step explanation:

De acuerdo a la situación planteada, la expresión algebraica debe indicar que 25€ que es el valor por la visita más 20€ multiplicado por el número de horas trabajadas es igual al dinero total que se debe pagar. La expresión es:

x= 25+20y, donde

x= valor total a pagar

y= número de horas trabajadas

Answer as a fraction:  x = 5/2

Answer in decimal form:   x = 2.5

=====================================================

Explanation:

Replace f(x) with 5

So we go from f(x) = 2x to 5 = 2x

Now isolate x. We do so by dividing both sides by 2 (this undoes the multiplication of 2 on x)

So we get

5 = 2x

5/2 = 2x/2 ... divide both sides by 2

5/2 = x

x = 5/2

x = 2.5

Answer: The class average is 88, and Joey did better than 5 points more than the class average. Therefore, Joey's math test score is greater than 88 + 5 = 93.

So, the number sentence that represents Joey's math test score is:

D. 88 + 5 > J

Step-by-step explanation:

Answer:

Step-by-step explanation:

Adult's ticket price= $2.50

Children's ticket price= $1.25

One performance sells 12 more tickets to  adult than children.

In total they make $183.75.

Therefore, we have that:

1.25x+2.50(x+12)=$183.75

We solve the resulting equation for x.

Open the brackets

1.25x+2.5x+30=183.75

Collect like terms

3.75x=183.75-30

3.75x=153.75

Divide both sides by 3.75

x=41

Therefore:

Answer:

 -y • (6x^2 + 3xy - 4)

Step-by-step explanation:

Research has shown that competent communicators achieve effectiveness by adjusting their behaviors to the person and situation (option e).

Effective communication involves being adaptable and responsive to the specific context, individual preferences, and the needs of the situation.

Competent communicators recognize that different people have different communication styles, preferences, and expectations. They understand the importance of tailoring their communication approach to effectively connect and engage with others.

This may involve using appropriate language, tone, non-verbal cues, and listening actively to understand the needs and perspectives of others.

By adapting their behaviors, competent communicators can build rapport, foster understanding, and promote effective communication exchanges. They are mindful of the social and cultural dynamics at play, and they strive to communicate in a way that is respectful, inclusive, and conducive to achieving mutual goals.

In summary, competent communicators understand that effective communication is not a one-size-fits-all approach. They adjust their behaviors to the person and situation, demonstrating flexibility and adaptability in order to enhance communication effectiveness.

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Competent communicators achieve effectiveness mostly by adjusting their behaviors to suit the person they are communicating with and the situation they find themselves in. While other factors, like having a broad vocabulary or giving feedback, play a part in effective communication, the former is considered the most crucial.

Research suggests that competent communicators achieve effectiveness mostly through adjusting their behaviors depending on the person they are communicating with and the situation they are in. This is option e. of your question. Communicating effectively involves behaviors like active listening, understanding the other person's point of view, being able to express thoughts and ideas clearly, and being polite and respectful. While a broad vocabulary (option b.) can be useful, it is not as crucial as adapting your behavior to fit the situation. Moreover, giving feedback (option d.) is a part of effective communication but not the sole defining factor. Apologizing when offending others (option c.) is also important but it doesn't necessarily make one a competent communicator. Using the same type of behavior in various situations (option a.) might not always work, as different situations and individuals require different communication styles.

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Answer:

work is shown and pictured

With a credit card balance of $17,426, a minimum monthly payment of $461, and an interest rate of 15.5%, we need to calculate the number of years it will take to pay off the card without adding any additional debt.

To determine the time required to pay off the credit card, we consider the monthly payment and the interest rate. Each month, a portion of the payment goes towards reducing the balance, while the remaining balance accrues interest.

To calculate the time needed for repayment, we track the decreasing balance each month. First, we determine the interest accrued on the remaining balance by multiplying it by the monthly interest rate (15.5% divided by 12).

We continue making monthly payments until the remaining balance reaches zero. By dividing the initial balance by the monthly payment minus the portion allocated to interest, we obtain the number of months needed for repayment. Finally, we divide the result by 12 to convert it into years.

In this scenario, it will take approximately 3.81 years to pay off the credit card (17,426 / (461 - (17,426 * (15.5% / 12))) / 12).

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the standard deviations for X and Y are:

X: 14.57%

Y: 19.59%

To calculate the average returns for X and Y, we sum up the returns for each year and divide by the total number of years (in this case, 5).

Average return for X:

(22.3 - 17.3 + 10.3 + 20.6 + 5.3) / 5 = 8.64%

Average return for Y:

(27.9 - 4.3 + 29.9 - 15.6 + 33.9) / 5 = 14.36%

Therefore, the average returns for X and Y are:

X: 8.64%

Y: 14.36%

To calculate the variances for X and Y, we need to find the sum of squared differences from the mean for each return, divide by the total number of years, and round the result to 6 decimal places.

Variance for X:

((22.3 - 8.64)^2 + (-17.3 - 8.64)^2 + (10.3 - 8.64)^2 + (20.6 - 8.64)^2 + (5.3 - 8.64)^2) / 5 = 211.934933

Variance for Y:

((27.9 - 14.36)^2 + (-4.3 - 14.36)^2 + (29.9 - 14.36)^2 + (-15.6 - 14.36)^2 + (33.9 - 14.36)^2) / 5 = 383.830933

The variances for X and Y are:

X: 211.934933

Y: 383.830933

To calculate the standard deviations for X and Y, we take the square root of their respective variances and express them as percentages rounded to 2 decimal places.

Standard deviation for X:

√(211.934933) = 14.57%

Standard deviation for Y:

√(383.830933) = 19.59%

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Let Q=k\(g^{x} h^{y} c^{z}\)  where x,y,z are the dimensions and k is dimensionless constant. It will give the Planck's length.

This length is the Planck length, and it is 1.6 x 10-35 meters. Writing the dimensions in Q, we will get the following expression :

[M0L1T0]=(M−1L3T−2)x(ML2T−1)y(LT−1)z   = M−x+yL3x+2y+zT−2x−y−z

Applying the principle of homogeneity of dimensions, we get

−x+y=0∴y=x.      iii

3x+2y+z=1         iv

−2x−y−z=0        

Add (iii) & (iv) x+y=1 or x+x ,x=1/2

From Q, y=x=12

From (iv) z=−2x−y=−2(12)−12=−32

Put in (i) Q=kG1/2h1/2c−3/20

Q=kGhc^3

Taking k=1 and putting the standard values : G=6.67×10^−11 SI units.

h=6.63×10^−34-sec

c=3×10^8m/s , we get

Q≅ \(10^{-35}\) m

This length is called Planck's length.

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Answer:

C

Step-by-step explanation:

I think that is the answer because 5x5x5=125

Answer:

it is c 125

Step-by-step explanation:

Answer:

unsafe action is the answer

The directional derivative of the function at the given point in the direction of the vector v are as follows :

\(\[D_{\mathbf{u}} f(\mathbf{a}) = \nabla f(\mathbf{a}) \cdot \mathbf{u}\]\)

Where:

- \(\(D_{\mathbf{u}} f(\mathbf{a})\) represents the directional derivative of the function \(f\) at the point \(\mathbf{a}\) in the direction of the vector \(\mathbf{u}\).\)

- \(\(\nabla f(\mathbf{a})\) represents the gradient of \(f\) at the point \(\mathbf{a}\).\)

- \(\(\cdot\) represents the dot product between the gradient and the vector \(\mathbf{u}\).\)

Now, let's substitute the values into the formula:

Given function: \(\(f(x, y) = 7e^x \sin y\)\)

Point: \(\((0, \frac{\pi}{3})\)\)

Vector: \(\(\mathbf{v} = \begin{bmatrix} -5 \\ 12 \end{bmatrix}\)\)

Gradient of \(\(f\)\) at the point  \(\((0, \frac{\pi}{3})\):\)

\(\(\nabla f(0, \frac{\pi}{3}) = \begin{bmatrix} \frac{\partial f}{\partial x} (0, \frac{\pi}{3}) \\ \frac{\partial f}{\partial y} (0, \frac{\pi}{3}) \end{bmatrix}\)\)

To find the partial derivatives, we differentiate \(\(f\)\) with respect to \(\(x\)\) and \(\(y\)\) separately:

\(\(\frac{\partial f}{\partial x} = 7e^x \sin y\)\)

\(\(\frac{\partial f}{\partial y} = 7e^x \cos y\)\)

Substituting the values \(\((0, \frac{\pi}{3})\)\) into the partial derivatives:

\(\(\frac{\partial f}{\partial x} (0, \frac{\pi}{3}) = 7e^0 \sin \frac{\pi}{3} = \frac{7\sqrt{3}}{2}\)\)

\(\(\frac{\partial f}{\partial y} (0, \frac{\pi}{3}) = 7e^0 \cos \frac{\pi}{3} = \frac{7}{2}\)\)

Now, calculating the dot product between the gradient and the vector \(\(\mathbf{v}\)):

\(\(\nabla f(0, \frac{\pi}{3}) \cdot \mathbf{v} = \begin{bmatrix} \frac{7\sqrt{3}}{2} \\ \frac{7}{2} \end{bmatrix} \cdot \begin{bmatrix} -5 \\ 12 \end{bmatrix}\)\)

Using the dot product formula:

\(\(\nabla f(0, \frac{\pi}{3}) \cdot \mathbf{v} = \left(\frac{7\sqrt{3}}{2} \cdot -5\right) + \left(\frac{7}{2} \cdot 12\right)\)\)

Simplifying:

\(\(\nabla f(0, \frac{\pi}{3}) \cdot \mathbf{v} = -\frac{35\sqrt{3}}{2} + \frac{84}{2} = -\frac{35\sqrt{3}}{2} + 42\)\)

So, the directional derivative \(\(D_{\mathbf{u}} f(0 \frac{\pi}{3})\) in the direction of the vector \(\mathbf{v} = \begin{bmatrix} -5 \\ 12 \end{bmatrix}\) is \(-\frac{35\sqrt{3}}{2} + 42\).\)

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Answer:

18-22 is -4

Step-by-step explanation:

Answer:

18-22 is -4 !! :) I hope this helps

when developing the formula for s(M1-M2), we consider the amount of error for each sample mean, the estimated standard error of M as a statistic, and use an average estimate when dealing with different sample sizes. This helps us determine the total amount of error when using two sample means to approximate two population means.

The independent-measures t statistic is used to determine the total amount of error when using two sample means to approximate two population means. To develop the formula for s(M1-M2), we consider the following points:

1. Each of the two sample means represents its own population mean, but there is some error involved in each case. This error is referred to as the "amount of error."

2. The "amount of error" associated with each sample mean is measured by the estimated standard error of M (sM). This statistic helps us understand how much the sample means may deviate from their respective population means.

3. To find the total amount of error involved in using two sample means to approximate two population means, we consider the size of each sample. If the samples are the same size, we can find the error from each sample separately and add the two errors together.

4. When the samples are of different sizes, a "pooled" or "average estimate" is used to account for the different sample sizes. This approach allows the larger sample to carry more weight in determining the final value of the t statistic.

In summary, when developing the formula for s(M1-M2), we consider the amount of error for each sample mean, the estimated standard error of M as a statistic, and use an average estimate when dealing with different sample sizes. This helps us determine the total amount of error when using two sample means to approximate two population means.

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the radius is half of the diameter, so d = 2r , or double the radius :)