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Help please

Answer:160

Step-by-step explanation:

10 x 16

Answer:

the answer is 80

Step-by-step explanation:

Opposite sides are equal in length and opposite angles are equal in measure. To find the area of a parallelogram, multiply the base by the height. The formula is: A = B * H where B is the base, H is the height, and * means multiply.

A=bh=10·8=80

Hope this helped!!!

Answer:

0.05 in decimal form

Step-by-step explanation:

I don't know if you accidentally left something out but if you did I can edit my answer or put the answer in the comments.

The correct answer is the expected value E(X) is 36/107.

To find the probability P(X = 5), we need to determine the sequence of coin flips that leads to exactly 5 tosses.

Let's analyze the possible outcomes:

H: Head

T: Tail

Possible outcomes with 5 tosses:

TTHHT: The first coin (1/3 probability of heads) lands tails (T), the second coin (1/4 probability of heads) lands tails (T), the first coin lands heads (H), and the second coin lands heads (H).

The probability of this specific outcome is (2/3) * (3/4) * (1/3) * (1/4) = 1/72.

Since there is only one possible outcome with 5 tosses, the probability P(X = 5) is 1/72.

To find P(X is odd), we need to determine the probability of the total number of tosses being an odd number.

Possible odd values for X: 1, 3, 5, 7, ...

P(X = 1): The first coin lands heads (1/3 probability) on the first toss. P(X = 1) = 1/3.

P(X = 3): The first coin lands tails (2/3 probability) on the first toss. The second coin lands heads (1/4 probability) on the second toss. The first coin lands heads (1/3 probability) on the third toss. P(X = 3) = (2/3) * (1/4) * (1/3) = 1/18.

P(X = 5): We already calculated this probability as 1/72.

Therefore, the probability P(X is odd) = P(X = 1) + P(X = 3) + P(X = 5) = 1/3 + 1/18 + 1/72 = 9/24 = 3/8.

To find the expected value E(X), we need to sum the product of each possible value of X and its corresponding probability.

The possible values of X are 1, 3, 5, 7, ...

E(X) = (1 * P(X = 1)) + (3 * P(X = 3)) + (5 * P(X = 5)) + (7 * P(X = 7)) + ...

The pattern here is that the probability of getting a heads decreases with each additional toss, and the value of X increases by 2 with each additional toss.

E(X) = (1 * 1/3) + (3 * 1/18) + (5 * 1/72) + (7 * 1/288) + ...

This is an infinite geometric series with a common ratio of (1/6) * (1/6) = 1/36.

Using the formula for the sum of an infinite geometric series, we can calculate:

E(X) = (1 * 1/3) / (1 - 1/36) = 36/107.

Therefore, the expected value E(X) is 36/107.

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Answer:

\(v(t) = 2t - 5\)

Step-by-step explanation:

Given

\(s(t) = t^2 - 5t + 1\)

Required

The speed of the particle

To do this, we simply differentiate the position function

i.e.

\(v(t) = s'(t)\)

So, we have:

\(s(t) = t^2 - 5t + 1\)

Differentiate

\(s'(t) = 2t - 5 + 0\)

\(s'(t) = 2t - 5\)

So, the speed function is:

\(v(t) = 2t - 5\)

to get the equation of any straight line we simply need two points off of it, hmm let's get two from this table

\(\begin{array}{|cc|ll} \cline{1-2} x&y\\ \cline{1-2} 0&4\\ 1&10\\ 2&16\\ 3&22\\ 4&28\\ \cline{1-2} \end{array} \begin{array}{llll} \\ \leftarrow \textit{let's use this point}\\\\ \leftarrow \textit{and this point} \end{array}\)

\((\stackrel{x_1}{1}~,~\stackrel{y_1}{10})\qquad (\stackrel{x_2}{3}~,~\stackrel{y_2}{22}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{22}-\stackrel{y1}{10}}}{\underset{run} {\underset{x_2}{3}-\underset{x_1}{1}}}\implies \cfrac{12}{2}\implies 6 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{10}=\stackrel{m}{6}(x-\stackrel{x_1}{1}) \\\\\\ y-10=6x-6\implies y=6x+4\)

Step-by-step explanation:

for f(x) = -7x - 15

f(2) = -7(2) - 15

f(2) = -14 - 15

f(2) = -29

Answer:

£1 : £0.43

Step-by-step explanation:

So to make the ratio, you need the amount of money spent on advertising and the money spent on its website

Website money = £0.43

Advertising money = £1

£1 : £0.43

The total perimeter will be 4x^+17 and length be 22.76 cm

As per the data given in the questions,

We have, the shape of the sandwich be rectangular.

We know that, perimeter of the rectangle can be determined by using formula: 2(l+b),

where, l = length of the rectangle

and, b = breadth of the rectangle

The expression for the perimeter of the sandwich would be:

2 (2x^2 + 9) + 2 (2x^2 + 8)

= 4x^2 + 26

Now for finding the length of the crust,

we will put the value of x=1.2,

So, the value of the approximate length of the crust would be:

=4x^2 + 26

= 4 * 1.2^2 + 26

= 22.76 centimetres.

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Answer:

see explanation

Step-by-step explanation:

n - 8 = - 32 ( add 8 to both sides )

n = - 24

---------------------

2 - 4n = 66 ( subtract 2 from both sides )

- 4n = 64 ( divide both sides by - 4 )

n = - 16

Answer:

75$ i think lol I did not get the question

Answer:

$75

Step-by-step explanation:

He has enough money to purchase 3 video games each cost $25.

In order to find out how much money he has in total you have to multiply 3 times 25 and you get 75.

You multiply because it has key words like "each" meaning multiplication.

wait nvm

one candy bar costs 0.60 cents

multiply this number by 2 and get $1.20

First we add 0.3 to 3.7, that way we will have an integer and it would be more easy to make the operations. Then we have 4.

Then we can substract the 4 to the 9.4, getting 5.4.

Finally we add once again 0.3 (because in the difference we have an extra .3) to the 5.4, getting 5.7.

Then Tamela swims 5.7 more than Blake every day.

Answer:

8

Step-by-step explanation:

hope this helps.

15028 is not a perfect square.

15028 is not a perfect square.

Smallest number by which 15028 can be divided to make it perfect square is 13.

If, we divide 15028 by 13, answer is 1156.

Therefore,

√1156 = 34.

okay so

117° + angle a = 180° (supplementary angle)

angle a = 180 - 117

= 63°

then angle a + angle b + 81° = 180° ( angle sum property)

so... 63° + angle b + 81° = 180

144 + angle b = 180°

angle b = 180 - 144

= 36°

hope this helps.

The value of the voltage of the electricity is 6 + j + 2j²

From the question, we have the following parameters that can be used in our computation:

C = 2 - j

I = 3 + 2j

The formula of voltage is given as

V = CI

Substitute the known values in the above equation, so, we have the following representation

V = (2 - j) * (3 + 2j)

Open the brackets

So, we have

V = 6 + 4j - 3j + 2j²

Evaluate the like terms

V = 6 + j + 2j²

Hence, the voltage is 6 + j + 2j²

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Por lo tanto, la longitud de la circunferencia con un diámetro de 32 cm sería aproximadamente 100.53 cm.

La fórmula para calcular la longitud de una circunferencia es:

Longitud = π * Diámetro

En este caso, si el diámetro es de 32 cm, podemos calcular la longitud de la siguiente manera:

Longitud = π * 32 cm

El valor de π (pi) es una constante que representa la relación entre la circunferencia de un círculo y su diámetro. Usualmente, se aproxima a 3.14159.

Por lo tanto, la longitud de la circunferencia sería:

Longitud ≈ 3.14159 * 32 cm

Calculando el resultado:

Longitud ≈ 100.53096 cm

Por lo tanto, la longitud de la circunferencia con un diámetro de 32 cm sería aproximadamente 100.53 cm.

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Answer:

cos(θ) = 3/5

Step-by-step explanation:

We can think of this situation as a triangle rectangle (you can see it in the image below).

Here, we have a triangle rectangle with an angle θ, such that the adjacent cathetus to θ is 3 units long, and the cathetus opposite to θ is 4 units long.

Here we want to find cos(θ).

You should remember:

cos(θ) = (adjacent cathetus)/(hypotenuse)

We already know that the adjacent cathetus is equal to 3.

And for the hypotenuse, we can use the Pythagorean's theorem, which says that the sum of the squares of the cathetus is equal to the square of the hypotenuse, this is:

3^2 + 4^2 = H^2

We can solve this for H, to get:

H = √( 3^2 + 4^2) = √(9 + 16) = √25 = 5

The hypotenuse is 5 units long.

Then we have:

cos(θ) = (adjacent cathetus)/(hypotenuse)

cos(θ) = 3/5

hope it was helpful, aby questions u have u r welcome

The regression model shows that BTU rating, energy efficiency ratio, and number of settings have a significant effect on the price of air conditioners. The results make economic sense as higher BTU ratings, higher energy efficiency ratios, and a hypothesis test confirms the positive effect of BTU rating. The null hypothesis that the three variables do not explain a substantial variation in price is rejected.

The regression equation shows that the price of air conditioners is determined by the BTU rating, energy efficiency ratio, and number of settings. The coefficients indicate that as the BTU rating and energy efficiency ratio increase, the price of the air conditioner also increases. Similarly, as the number of settings increases, the price also increases. The R-squared value of 0.84 indicates that 84% of the variation in the price of air conditioners is explained by the three explanatory variables.

Yes, the results make economic sense as it is logical to expect that air conditioners with higher BTU ratings, higher energy efficiency ratios, and more settings will be priced higher.

To test the hypothesis that the BTU rating has no effect on the price of an air conditioner versus that it has a positive effect, we can set up the null and alternative hypotheses as follows:

H0: β2 = 0 (BTU rating has no effect on price)

Ha: β2 > 0 (BTU rating has a positive effect on price)

Using the t-test, with α=5α=5 and the standard error of β2 from the regression output, we can calculate the t-statistic as:

t = (0.023 - 0) / 0.005 = 4.6

The degrees of freedom are n - k - 1 = 19 - 3 - 1 = 15, where n is the sample size and k is the number of explanatory variables. The critical value for a one-tailed t-test with 15 degrees of freedom at α=5α=5 is 1.753. Since the calculated t-statistic of 4.6 is greater than the critical value of 1.753, we reject the null hypothesis and conclude that the BTU rating has a positive effect on the price of an air conditioner.

Based on the high R-squared value of 0.84, we can conclude that the three explanatory variables (BTU rating, energy efficiency ratio, and number of settings) explain a substantial variation in the prices of air conditioners. Therefore, we would not accept the null hypothesis that these variables have no effect on the price of air conditioners.

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Answer:

A

Step-by-step explanation:

im pretty sure im right

Answer:

c.) Part of your salary.

Step-by-step explanation:

The correct statement is: 'A one-variable data table has input values that are listed either down a column (column-oriented) or across a row (row-oriented). '

The correct answer is an option (a)

We know that a one-variable data table contain its input values either in a single column (column-oriented), or across a row (row-oriented).

And any formula in this data table must refer to only one input cell.

Whereas we se a two-variable data table to see how different values of two variables in one formula will change the formula results.

Custom data tables are used for: Building data-driven services that can easily be updated without modifying it and storing the results.

And the pre-formatted data tables stored as building blocks in galleries that can be accessed any time and be reused any number of times you want.

Therefore, the correct answer is an option (a)

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The complete question is:

A ________ data table has input values that are listed either as column-oriented or roworiented.

A) one-variable

B) two-variable

C) custom

D) pre-formatted

To find the lateral area of a pentagonal pyramid, you need to calculate the sum of the areas of the five triangular faces that make up the sides of the pyramid.

The formula for the lateral area of any pyramid is given by L = (1/2)Pl, where P represents the perimeter of the base and l represents the slant height of each triangular face.

In the case of a pentagonal pyramid, the base is a pentagon, which means it has five sides. To calculate the perimeter of the base, you can add the lengths of all five sides. Once you have the perimeter, you need to find the slant height, which is the distance from the apex (top) of the pyramid to the midpoint of any side of the base triangle.

Once you have the perimeter and slant height, you can substitute these values into the formula L = (1/2)Pl to calculate the lateral area of the pentagonal pyramid.

It's important to note that the lateral area only considers the surface area of the sides of the pyramid, excluding the base. If you want to find the total surface area, you need to add the area of the base as well.

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The correct answers are:

Mapping of Regular Entity Types.

Mapping of Binary 1:1 Relationship Types.

Mapping of Weak Entity Types.

Mapping of N-Ary Relationship Types.

Mapping of Single-Valued Attributes.

The steps of ER-to-relational mapping algorithm are as follows:

Mapping of Regular Entity Types.

Mapping of Binary 1:1 Relationship Types.

Mapping of Binary 1:N Relationship Types.

Mapping of Binary M:N Relationship Types.

Mapping of Multivalued Attributes.

Mapping of Composite Attributes.

Mapping of Derived Attributes.

Mapping of Weak Entity Types.

Mapping of N-Ary Relationship Types.

Mapping of Single-Valued Attributes.

ER-to-relational mapping algorithm is a process of converting ER model into relational model. The ER-to-relational mapping algorithm is the process of converting the ER schema into the relational model.

However, the correct answers are:

Mapping of Regular Entity Types.

Mapping of Binary 1:1 Relationship Types.

Mapping of Weak Entity Types.

Mapping of N-Ary Relationship Types.

Mapping of Single-Valued Attributes.

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The evaluated values of fx and fy at the point (0,0) are 1 and 0, respectively.

Function mentioned in the question :  f(x,y) = e^(18y) sin(x).

Here we have to evaluate fx and fy at the point (0,0).Now, let's solve this one by one.

To calculate fx :Since f(x,y) = e^(18y) sin(x), we get fx = (d/dx) (e^(18y) sin(x)). Here, we know that the derivative of e^(18y) will be 0, since it's a constant function with respect to x. So, we will only need to differentiate sin(x).

Using the derivative of sin(x), we get fx = e^(18y) cos(x)

Now, to calculate fy : Again, using f(x,y) = e^(18y) sin(x), we get fy = (d/dy) (e^(18y) sin(x))Using the chain rule, we will first differentiate the exponent term e^(18y). Using the chain rule, we get fy = e^(18y) (d/dy) (sin(x)).

Now, since sin(x) is not dependent on y, its derivative will be 0.

So, we will only need to differentiate e^(18y) with respect to y.Using the chain rule again, we get fy = 18e^(18y) sin(x). Hence, the value of fx at the point (0,0) will be f(0,0) = e^(18*0) cos(0) = e^0 * 1 = 1,

and, the value of fy at the point (0,0) will be f(0,0) = 18e^(18*0) sin(0) = 18 * 0 * 0 = 0.

Therefore, the evaluated values of fx and fy at the point (0,0) are 1 and 0, respectively.

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Complete Question : evaluate fx and fy at the given point. f(x, y) = e18y sin(x), (0,0)

Answer:

4

Step-by-step explanation:

43/16 times 125 equals 335.9375

Answer:

10*10*10 =1000

Step-by-step explanation:

the volume tells you how many little 1 in cubes would fit on the 10 inch one

10  one inch cubes make a 10in line,   10 of those lines make a square and 10 of those square make the cube so:

1  *  10 * 10 * 10

Answer:

\(Q_1 = 7\)

\(Q_2 = 10\)

\(Q_3 = 13.5\)

Step-by-step explanation:

Given

5, 7, 7, 8, 10, 11, 12, 15, 17.

Required

Determine Q1, Q2 and Q3

The number of data is 9

Calculating Q1:

Q1 is calculated as:

\(Q_1 = \frac{1}{4}(N + 1)\)

Substitute 9 for N

\(Q_1 = \frac{1}{4}(9 + 1)\)

\(Q_1 = \frac{1}{4}*10\)

\(Q_1 = 2.5th\ item\)

This means that the Q1 is the mean of the 2nd and 3rd data.

So:

\(Q_1 = \frac{1}{2}(7+7)\)

\(Q_1 = \frac{1}{2}*14\)

\(Q_1 = 7\)

Calculating Q2:

Q2 is calculated as:

\(Q_2 = \frac{1}{2}(N + 1)\)

Substitute 9 for N

\(Q_2 = \frac{1}{2}(9 + 1)\)

\(Q_2 = \frac{1}{2}*10\)

\(Q_2 = 5th\ item\)

\(Q_2 = 10\)

Calculating Q3:

Q3 is calculated as:

\(Q_3 = \frac{3}{4}(N + 1)\)

Substitute 9 for N

\(Q_3 = \frac{3}{4}(9 + 1)\)

\(Q_3 = \frac{3}{4}*10\)

\(Q_3 = 7.5th\ item\)

This means that the Q3 is the mean of the 7th and 8th data.

So:

\(Q_3 = \frac{1}{2}(12+15)\)

\(Q_3 = \frac{1}{2}*27\)

\(Q_3 = 13.5\)

Answer:

They are perpendicular.

Lines:

Parallel lines have the same slopes.

Perpendicular lines are the negative reciprocals of each other.

Some lines don't share any particular relationship.

Hope this helps!