Please help! I will mark as brainliest. <3

Answer:

\(\underline{\boxed{\tt \angle x=75^{o}}}\)

Step-by-step explanation:

We know that all angles of a triangle always add up to 180°.

\(\angle BDH+\angle DBH+\angle DHB=180^o\)

\(39^o+36^o+\angle DHB=180^o\)

\(\angle DHB=105^o\)

Now, ∠DHB & ∠x are supplementary angles because they form a straight line.

\(\angle DHB+\angle x=180^o\)

\(105^o+\angle x=180^o\)

\(\angle x=75^o\)

Answer: 75°

Step-by-step explanation: it’s right on khan (picture for proof)

The coordinates of point E is (-2, -1.5)

How to determine the coordinates of point E?

see in the file attached below

The given parameters are

C = (1, 6)

D = (-3, -4)

The ratio 3/4 can be represented as:

m : n = 3 : 1

So, the coordinate of point E is

E = 1/(m + n) * (mx2 + nx1, my2 + ny1)

So, we have:

E = 1/(3 + 1) * (3 * -3 + 1 * 1, 3 * -4 + 1 * 6)

Evaluate

E = 1/(4) * (-8, -6)

This gives

E = (-2, -1.5)

Hence, the coordinates of point E is (-2, -1.5 )

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To increase the injection rate q, we can increase the injection well pressure (piw), decrease the production well pressure (ppw), or decrease the distance between the injection and production well (d) any changes in these variables should be carefully evaluated and monitored to avoid any adverse effects on the reservoir performance.

How injection rate varies with different scenario?

The dimensionless productivity index for the well in the given equation can be calculated by dividing the flow rate (q) by the pressure difference (Pw-Ppw) and the distance between the wells (d).
The dimensionless productivity index = q / (Pw-Ppw)d

In order to increase the injection rate q, we can change the three controllable variables piw, ppw and d.

To increase the injection rate q, we can increase the injection well pressure (piw), decrease the production well pressure (ppw), or decrease the distance between the injection and production well (d).

However, there may be some restrictions on varying these variables freely. For example, increasing the injection well pressure beyond a certain limit may cause formation damage or fracture the reservoir rock. Similarly, decreasing the production well pressure too much may result in water coning or gas breakthrough.

Moreover, decreasing the distance between the wells may not be feasible due to the geological or physical constraints of the reservoir.

Therefore, any changes in these variables should be carefully evaluated and monitored to avoid any adverse effects on the reservoir performance.

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The answer would be

A.) ~-12~

because 2-24=-22 -22+8+2=-12  

B.)~16~

because 6+8-8+10 and -8+8=0 so 6+10=16

Hope this helps

Have a great day/night

Feel free to ask any questions

Answer:

The probability as a decimal to the nearest hundredth is 0.550.55.

Step-by-step explanation:

61 cash, 5 debit card, and 45 credit card.

\color{steelblue}{61}+5+45=

61+5+45=

\,\,\color{indianred}{111}

111

There were a toal of 111 customers. 61 paid with cash.

Probability the next customer will pay with cash:

\frac{\color{steelblue}{61}}{\color{indianred}{111}}=

111

61

​

=

\,\,0.549549...

0.549549...

\approx

≈

\,\,0.55

0.55

Round to the nearest hundreth

The probability that the next customer will pay with cash is 0.55.

Probability is the ratio of the number of favorable events divided by the total outcome.

We have, given that, Tanisha owns a small business selling bagels. She knows that in the last week 61 customers paid cash, 5 customers used a debit card, and 45 customers used a credit card.

The total number of payments is,

61+45+5=111.

We have to find the probability that the next customer will pay with cash as a decimal to the nearest hundredth.

The number of the favorable outcome for the customer will pay with cash is 61, and the total number of outcomes is 111.

Therefore, the probability is,

P(A)=61/111

P(A)=0.5495.

Therefore, the probability of the nearest hundredth is 0.55.

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Answer:

1 ) y = 2x - 1

slope = 2

y intercept is (0,-1)

2) y = -1/2x + 5

slope = -0.5

y intercept  = (0,5)

Step-by-step explanation:

use the following property:

so:

Answer:

The sum is 10

Step-by-step explanation:

Given: 2 1/2 + 2 1/2 + 2 1/2 + 2 1/2

Rewrite: 4(2 1/2)

Make fraction improper: 4(5/2)

Distribute: 20/2

Simplify: 10

Answer:

$60.00=Y× X

Step-by-step explanation:

You know she makes $60 but you need to figure out how many hours she works and how much an hour she makes working.

Answer:

105

Step-by-step explanation:

7x15=105

Answer: 35

Step-by-step explanation:

If you multiply 5X7 it gives you 35 if 3lbs cost 15 that means every lb cost 5 , or you can add 5 +5 till you get 35

Answer:

12 and 16

Step-by-step explanation:

Turn it into algebra.

Make one of the pieces x. So x+4 is the piece that is 4 feet longer and x is the piece that it is 4 feet longer than.

So x+4+x=28, which is the total length, and if you simplify it, it makes 2x+4=28.

Then you just solve it, so do 28-4=24, and then divide that by 2, which gets 12.

Then you substitute 12 where x has been substituted for the pieces.

One piece is x feet, so that just stays 12, and another piece is x+4, so 12+4 which is 16.

To make sure it's correct, you can check it by doing 16-12=4 and add 12 and 16 together which gets the correct total of 28.

Molly gave away 90 trading cards, which is option (c).

Let's start by figuring out how many trading cards Marcus gave away. We know that Molly gave away n trading cards, so she has 250 - n cards left. Marcus gave away three times as many cards as Molly did, so he gave away 3n cards. That means he has 430 - 3n cards left.

We also know that Molly and Marcus have the same number of trading cards left, so:

250 - n = 430 - 3n

Simplifying and solving for n, we get:

2n = 180

n = 90

Therefore, Molly gave away 90 trading cards, which is option (c).

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Lucy has $7 less than Kristine and $5 more than Nina together, the three have $35. Lucy has $11.

Let's denote the amount of money that Kristine has as K, the amount of money that Lucy has as L, and the amount of money that Nina has as N.

According to the given information, we can form two equations:

Lucy has $7 less than Kristine: L = K - 7

Lucy has $5 more than Nina: L = N + 5

We also know that the three of them have a total of $35: K + L + N = 35

We can solve this system of equations to find the values of K, L, and N.

Substituting equation 1 into equation 3, we get:

K + (K - 7) + N = 35

2K - 7 + N = 35

Substituting equation 2 into the above equation, we get:

2K - 7 + (L - 5) = 35

2K + L - 12 = 35

Since Lucy has $7 less than Kristine (equation 1), we can substitute K - 7 for L in the above equation:

2K + (K - 7) - 12 = 35

3K - 19 = 35

Adding 19 to both sides:

3K = 54

Dividing both sides by 3:

K = 18

Now we can substitute the value of K into equation 1 to find L:

L = K - 7

L = 18 - 7

L = 11

Finally, we can find the value of N by substituting the values of K and L into equation 3:

K + L + N = 35

18 + 11 + N = 35

N = 35 - 18 - 11

N = 6

Therefore, Lucy has $11.

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The correlation coefficient that represents the strongest relationship between two variables is -0.75.

In correlation coefficients, the absolute value indicates the strength of the relationship between variables. The strength of the association increases with the absolute value's proximity to 1.

The maximum absolute value in this instance is -0.75, which denotes a significant negative correlation. The relevance of the reverse correlation value of -0.75 is demonstrated by the noteworthy unfavorable correlation between the two variables.

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The probability of finding  P(X > 150 ) with with mean 100 and standard deviation 50 is  0.1587.

1. To find the probability P(z > 1.61) for a standard normal variable z,

we can use the z-table or a calculator with a normal distribution function.

Step 1: Locate the value 1.61 on the z-table.

We will find the corresponding probability P(z < 1.61) = 0.9463.
Step 2: Since we want P(z > 1.61),

subtract the value found in Step 1 from 1:

P(z > 1.61) = 1 - P(z < 1.61) = 1 - 0.9463.
Step 3: Round to two decimal places: P(z > 1.61) ≈ 0.0537.

So, P(z > 1.61) ≈ 0.0537.

2. To find P(X > 150) for a normal distribution with mean μ = 100 and standard deviation σ = 50,

we have to first convert the value X = 150 to a z-score.

Step 1: Calculate the z-score using the formula z = (X - μ) / σ.

For X = 150, z = (150 - 100) / 50 = 1.
Step 2: Find the probability P(z > 1) using the z-table or a calculator.

You will find P(z < 1) = 0.8413.
Step 3: Since we want P(z > 1), subtract the value found in

Step 2 from 1: P(z > 1) = 1 - P(z < 1) = 1 - 0.8413.
Step 4: Round to two decimal places: P(z > 1) ≈ 0.1587.

So, P(X > 150) ≈ 0.1587.

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Answer:

78.5 m²

Step-by-step explanation:

Area formula: πr²

Plug it in: (3.14)(5m)²

Answer: 78.5 m²

AAA and SSA not work to prove triangles congruent because SSA alone is insufficient because the unknown side may be situated in two separate locations. Knowing merely Angle-Angle-Angle (AAA) is insufficient because it can result in triangles that are similar but not congruent.

What is congruent ?

Congruent in geometry refers to being the same size and shape. Congruence can be used with figures, angles, and line segments. If any two line segments are equal in length, they are said to be congruent. If two angles have the same measure, they are said to be congruent. If the matching sides and angles of two triangles are the same, they are said to be congruent. In this post, we will learn more about congruence and congruent figures.

The Angle-Angle-Angle (AAA) criterion for the similarity of triangles states that “If in two triangles, corresponding angles are equal, then their corresponding sides are in the same ratio (or proportion) and hence the two triangles are similar”.

"SSA" means "Side, Side, Angle, "SSA" is when we know two sides and an angle that is not the angle between the sides.

There are four shortcuts allow students to know two triangles must be congruent: SSS, SAS, ASA, and AAS.

However, knowing only Side-Side-Angle (SSA) does not work because the unknown side could be located in two different places.

Knowing only Angle-Angle-Angle (AAA) does not work because it can produce similar but not congruent triangles.

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Answer:

A

Step-by-step explanation:

\(\frac{2x^2-10x-28}{6x}\) × \(\frac{6}{x-7}\) ← factor the quadratic

= \(\frac{2(x+2)(x-7)}{6x}\) × \(\frac{6}{x-7}\)  ← cancel the factor (x - 7) and 6

= \(\frac{2(x+2)}{x}\) × 1

= \(\frac{2x+4}{x}\)

The Pie Chart is the best type of chart that could be used to represent the distribution of this data.

A pie chart is a type of circular statistical graph used for the representation of a data set. The graph's segments are proportionate to the percentage of the total in each group.  

However, the proportion of each portion of the pie chart is proportional to the number of the group as a whole.

Therefore, from the given information contains many data sets, each data can be represented in each portion to make a full Pie Chart.

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The dress was on sale for a 20% discount.

To find the percent discount, we need to calculate the difference between the original price and the sale price, and then divide that amount by the original price and multiply by 100 to represent the answer as a percentage.

Percent discount refers to the amount by which the original price of a product is reduced when it is put on sale. It is represented as a percentage of the original price.

The difference between the original price and the sale price is

=> $75.00 - $60.00

=> $15.00.

The percent discount is

=> $15.00 / $75.00 * 100

=> 20%.

So, the dress was on sale for a 20% discount

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The surface area of this locker is 432 square centimeters .

The right rectangular prism shown in the figure has dimensions 8 cm (length) x 6 cm (width) x 12 cm (height).

1. The top and bottom faces are both rectangles with dimensions 8 cm (length) x 6 cm (width). The area of each face is:

A = length x width = 8 x 6 = 48 cm²

Since there are two of these faces, the total area is:

2 x 48 = 96 cm²

2. The front and back faces are also rectangles with dimensions 8 cm (length) x 12 cm (height). The area of each face is:

A = length x height = 8 x 12 = 96 cm²

the total area is:

2 x 96 = 192 cm²

3. The left and right faces are rectangles with dimensions 6 cm (width) x 12 cm (height). The area of each face is:

A = width x height = 6 x 12 = 72 cm²

the total area is:

2 x 72 = 144 cm²

4. Therefore, the total surface area of the locker is the sum of all the faces:

Total surface area = 96 + 192 + 144 = 432 cm²

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The recursive formula for the predicted number of speeding tickets issued each year in Middletown, starting from 2012 with an initial count of 190 tickets and growing by 10% each year, can be written as follows: N(year) = 1.1 * N(year - 1).

The recursive formula for the predicted number of speeding tickets each year is based on the assumption of exponential growth, where the number of tickets issued increases by 10% each year.

Let's denote N(year) as the predicted number of speeding tickets during a particular year. According to the given information, in the year 2012, Middletown issued 190 speeding tickets, which serves as our initial count or base case.

To calculate the number of tickets in subsequent years, we multiply the previous year's count by 1.1, representing a 10% increase. Therefore, the recursive formula for the predicted number of speeding tickets is:

N(year) = 1.1 * N(year - 1).

Using this formula, we can determine the predicted number of speeding tickets for any given year by recursively applying the growth rate of 10% to the previous year's count.

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With the informations given by the question, we have the following diagram:

To calculate the height, we have the following trigonometric relation(since it is a right triangle):

Just solving for 'h':

With this, we have our height. The height of the kite is 363.7 ft

\(▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪\)

The Correct choices are :

Answer:

The last two I think

Step-by-step explanation:

Can I pls have brainly?

Answer:

The average rate of change of the function is 22.

Step-by-step explanation:

The given function is :

\(f(x)=x^4-5x\)

We need to find the average rate of change of the function on the closed interval (0, 3).

The average rate of change of a function in interval (a,b) is given by :

\(R=\dfrac{f(b)-f(a)}{b-a}\)

Here, a = 0 and b = 3

\(R=\dfrac{(3^4-5(3))-(0^4-5(0))}{3-0}\\\\=\dfrac{66}{3}\\\\=22\)

So, the average rate of change of the function is 22.

Answer:

22

Step-by-step explanation:

(f(3)-f(0))/3

=66/3

=22

Answer:

B

Step-by-step explanation:

So we want to find the value of x.

Note that the entire segment (JK) is the sum of the segments JI and IK. In other words:

\(JK=JI+IK\)

We know that JK is (2x-1), JI is (2), and IK is (x+3). Substitute:

\(2x-1=(2)+(x+3)\)

On the right, add:

\(2x-1=x+5\)

Add 1 to both sides:

\(2x=x+6\)

Subtract x from both sides. The right cancels:

\(x=6\)

And the value of x is 6.

Our answer is B.

Answer:

Yes

Step-by-step explanation:

Yes because if you insert -39 for x and 42 for y then your equation is:

42 = -39 + 81

If you were to solve this equation it would be true.

9514 1404 393

Answer:

  162 degrees

Step-by-step explanation:

Angles P and F are supplementary, so ...

  3x^2 +12x = 180

  x^2 +4x = 60

  x^2 +4x -60 = 0

  (x +10)(x -6) = 0

The useful value of x that makes this true is x=6.

The measure of angle Q is 3x, so is 3·6 = 18 degrees. The measure of angle S is the supplement to that:

  ∠S = 180° -18° = 162°

To accurately assess whether there are more Year 9 students who prefer a trip to Thorpe Park rather than a museum, primary data collection methods would be more appropriate.

In this case, primary data would be most suited for testing the hypothesis.

Primary data refers to information that is collected firsthand, specifically for the purpose of addressing a research question or hypothesis. In this scenario, to determine whether there are more students in Year 9 who would prefer a trip to Thorpe Park rather than a museum, it would be necessary to directly gather data from the students themselves.

This can be done through methods such as surveys, questionnaires, or interviews. By directly asking the Year 9 students about their preferences between a trip to Thorpe Park and a museum, we can collect primary data that specifically relates to the hypothesis being tested.

On the other hand, secondary data refers to information that has already been collected by someone else for a different purpose. While there may be existing secondary data that provides general information about student preferences or visitor statistics for Thorpe Park and museums, it may not provide the specific data needed to test the hypothesis in this case.

Therefore, to accurately assess whether there are more Year 9 students who prefer a trip to Thorpe Park rather than a museum, primary data collection methods would be more appropriate.

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