=1,932•21 please I need help

HELLO

I NEEDED HELP WITH THE SAME QUESTION SO I PUT IT UP WITH A PIC SO U CAN ALSO GET AN ANSWER FROM THERE

HERE YA GO <3

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Answer:

heyy i did this problem a while ago and got kinda stuck on it

Answer:

-1

Step-by-step explanation:

4-3=1

CHECK:

-1+-3=-4 (correct, and proven)

Answer:

51

Step-by-step explanation:

you plug in 3 for x.

5(3)^2 - 3 + 9

5(9) - 3 + 9

45-3+9

51

Answer: 5x^2+6

Step-by-step explanation: sorry if wrong

Working with the given percentages, we will get:

Here we need to work with percentages.

Let's say that X is last year's attendance. We know that 270 is the 125% of last year's attendance, then we will have the relation:

X*(125%/100%) = 270

X*1.25 = 270

X = 270/1.25 = 216

This means that last year's attendance was of 216 people.

The 25% of that is:

216*(25%/100%) = 216*(0.25) = 54

then we can complete the 3 blanks as:

125% of last year's attendance = 270

25% of last year's attendance = 54

100% of last year's attendance = 216

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Answer:

14.85

Step-by-step explanation:

Answer:

The correct answer is 2

Step-by-step explanation:

I already did this assignment. Its the upper quartile minus the lower quartile so it literally cannot be 14.85.

Answer:

57

Step-by-step explanation:

when you divide both of the answers you get 57 and I'm 98 percent positive it's correct

Answer:

97?

Step-by-step explanation:

323 people

323-80= 234

234-137

97?

again if im wrong im truly sorry

The impedance of the series circuit is given as follows:

19 ohms.

To obtain the impedance, we must consider if the circuit is in series or parallel, as follows:

The impedances in this problem are given as follows:

6 ohms, 4 ohms and 9 ohms.

They are series, meaning that we can just add them to obtain the equivalent impedance, as follows:

6 ohms + 4 ohms + 9 ohms = 19 ohms.

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Answer: 2nd picture

Step-by-step explanation: its rotating 90 degrees

The 90% confidence interval for the population proportion of adults who believe in UFOs is (0.309, 0.339).

C. With 90% confidence, it can be said that the population proportion of adults who believe in UFOs is between the endpoints of the given confidence interval.

To construct a 90% confidence interval for the population proportion of adults who believe in UFOs, we can use the formula:

Confidence Interval = Sample Proportion ± Margin of Error

First, we calculate the sample proportion:

Sample Proportion \(\hat{p}\) = Number of adults who believe in UFOs / Total number of adults surveyed = 736 / 2266 ≈ 0.324

Next, we need to calculate the margin of error.

Since we are dealing with a large sample size, we can use the formula for a 90% confidence interval:

Margin of Error\(= Z \times \sqrt{(\hat{p} \times (1 - \hat{p}) / n)}\)

Here, Z represents the z-value for a 90% confidence level, which corresponds to a z-value of 1.645. n represents the sample size.

Margin of Error\(= 1.645 \times \sqrt{(0.324 \times (1 - 0.324) / 2266)}\) ≈ 0.015

Finally, we can construct the confidence interval:

Confidence Interval = 0.324 ± 0.015 = (0.309, 0.339)

Therefore, the 90% confidence interval for the population proportion of adults who believe in UFOs is (0.309, 0.339).

Now, let's interpret the results.

The correct answer is:

C. With 90% confidence, it can be said that the population proportion of adults who believe in UFOs is between the endpoints of the given confidence interval.

This means that we are 90% confident that the true proportion of adults who believe in UFOs falls within the range of 0.309 to 0.339.

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The sample mean can be classified as a random variable because it is calculated from the sample which is built as random.

The mean of a data-set is obtained as the sum of all observations in the data-set divided by the number of observations.

Hence the sample mean is obtained as the sum of all observations of the sample divided by the sample size.

As the observations of the sample are taken at random, the sum of these observations will be a random variable, and so will the sample mean.

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The witch can make her special brew 6 times with the amount of water present in the small frog pond.

Given that:-

Total amount of water present in the small frog pond = 7 and 1/2 cups = 15/2 cups

Amount of water the witch needs to make her special brew = 1 and 1/4 cups = 5/4 cups

We have to find the number of times Wendy the witch can make her special brew with the amount of water present in the small frog pond.

We know that,

Number of times the witch can make the brew = Total amount of water/Water needed for brew

Hence, by simple division, we can write,

Number of times the witch can make the brew = (15/2) ÷ (5/4) = (15/2)*(4/5) = 6 times.

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The expression that describes all of the values for which the graph is positive and decreasing is all real values of x where x < -1

The equation of the function is given as:

f(x) = (x - 3)(x + 1)

When the value of the graph is positive, we have:

f(x) > 0

So, the function becomes

(x - 3)(x + 1) > 0

Split the above inequality

x - 3 > 0 and x + 1 > 0

Solve for x in the inequalities

x > 3 and x > -1

Hence, the expression that describes all of the values for which the graph is positive and decreasing is all real values of x where x < -1

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The Central Angle of each color is:

Red= 100°

Blue= 150°

Green= 50°

Purple = 60°

According to the definition of a central angle in geometry, it is the angle that the arc of a circle occupies in its centre. The angle's arms are formed by the two radii. Knowing the ratio of the curve to the circle using the central angle is helpful.

To draw a pie chart we have to find the central angle.

For Red

= 20/72 x 360

= 100 degree

For Blue

= 30/72 x 360

= 150

For Green

= 10/72 x 360

= 50

For Purple

= 12/ 72 x 360

= 60

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Answer:

Elena

Step-by-step explanation:

5.2 is bigger than 4.8

Answer:

Priya

Step-by-step explanation:

speed=D÷t

speed=Distance÷time

Elena=20÷5.2=3.8m/sec

Priya=20÷4.8=4.2m/sec

The disadvantages of the mode are: For many sets of data there is no mode.

The mode is a measure of central tendency that represents the most frequently occurring value in a dataset.

However, one of the disadvantages of the mode is that for many sets of data, there may not be a distinct mode. In such cases, the data may have a uniform distribution where all values occur with equal frequency, or it may have multiple modes with similar frequencies.

The mode is not affected by extremely large or small values. It only considers the frequency of values and not their magnitude. Therefore, extreme values do not influence the mode.

The statement that the mode can only be computed for interval-level data or higher is incorrect. The mode can be computed for any type of data, including nominal, ordinal, interval, and ratio data. It is applicable to categorical as well as numerical data.

The main disadvantage of the mode is that for many datasets, there may not be a distinct mode.

The correct option is: For many sets of data there is no mode.

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Answer:

Step-by-step explanation:

4x+3x=7x

-3x-2x-3x-2x=-10x

2+2=4

-3x & 4

When we add terms of expression 4x−3x²−2x+−3x+3x²−2x we get -3x.

An expression is combination of variables, numbers and operators.

The given expression is 4x−3x²−2x+−3x+3x²−2x

Four times of x minus three times of x square minus two times of x minus three times of x plus three times of x square minus two times of x.

4x−3x²−2x−3x+3x²−2x

We have to add this

Add the coefficients of x square, as there is −3x²  and +3x², when we add we get zero.

4x-2x-3x-2x

Now let us add x variable terms

-3x

Hence expression 4x−3x²−2x+−3x+3x²−2x is -3x

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The total cost for the electric bill is given by the equation A = $ 241

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the total cost for the electric bill be A

Now , the equation will be

The amount of electricity used by Ettienne = 1,895 kWh

And , the standard plan is

8.5 cents/kWh for the first 400 kWh

12 cents/kWh for the next 400 kWh

14.5 cents/kWh for anything over 800 kWh

So , for the first 400 kWh , the cost is = 400 x 8.5 = 3,400 cents

And , for the next 400kWh , the cost is = 400 x 12 = 4,800 cents

And , the remaining units of electricity is = 1,895 - 800 = 1,095 kWh

So , for the next 1,095kWh, the cost is = 1,095 x 14.5 = 15,877.5 cents

Therefore , the total cost for 1,895kWh = 3,400 cents + 4,800 cents + 15,877.5 cents

On simplifying the equation , we get

The total cost for 1,895kWh A = 24,077.5 cents

The total cost for 1,895kWh A = $ 240.77

The total cost for 1,895kWh A = $ 241

Hence , the equation is A = $ 241

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The equation of the parallel line will be y = (2/3)x - 8/3.

Let the equation of the line be ax + by + c = 0. Then the equation of the parallel line that is parallel to the line ax + by + c = 0 is given as ax + by + d = 0.

The equation of the line is given below.

y - 4 = 2/3 (x - 3)

The equation of the line that is parallel to the given line will be written as,

y = (2/3)x + c

The equation of the line that passes through (1, -2), then we have

- 2= (2/3)(1) + c

- 2 = 2 /3 + c

c = - 8 / 3

Then the equation of the parallel line will be y = (2/3)x - 8/3.

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Answer:

d. 36m

Step-by-step explanation:

Find the area of the rectangle by doing 9x5=45. Since a triangular area is cut out subtract that from 45. Do the equation 9x2=18 then do 18/2 because it is a triangle. Lastly subtract 9 from 45 to get 36.

Answer:

The answer is 36m

Step-by-step explanation:

Its right I took the test <3

The solution is 9x - 36u + 27.

What is the linear equation?

The definition of a linear equation is an algebraic equation in which each term has an exponent of one and the graphing of the equation results in a straight line. An example of a linear equation is y=mx + b.

We have given

-9(-×+4u-3)

When you multiply a negative number by another negative number, the result is positive.

So, to solve this problem, we can use the distributive property and simplify:

-9(-x + 4u - 3) = -9(-x) + -9(4u) + -9(-3)

= 9x - 36u + 27

Hence, the solution is 9x - 36u + 27.

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Answer:

F

Step-by-step explanation:

Answer

H 75 + Q > or = 120

Answer:

-10(1+2x)

Step-by-step explanation:

-10-20x

-10(1+2x)

Answer:

A. the solution set is r3

(Simplify your answer. Use a comma to separate answers as needed)

Answer:

Sure. Now what do you need help on? Please post the question.

Step-by-step explanation:

a. Sketch the region of integration in the XY-plane.

b. Reverse the order of integration.

c. Evaluate the integral.

(a) The integral is a double integral, which means that the region of integration is a region in the XY plane. The region of integration is defined by the limits of integration for x and y. However, since the limits of integration are not given, it's not possible to sketch the region of integration in the XY plane.

(b) The integral is already written with the order of integration reversed.

(c) Without the limits of integration, it is not possible to evaluate the integral. The limits of integration are necessary to determine the region of integration, and thus the range of values for x and y over which the integral is to be taken. Without this information, it is not possible to carry out the evaluation of the integral.

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Answer:

\(d = 33\)

Step-by-step explanation:

Distance Formula: \(d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)

Simply plug in the 2 coordinates into the distance formula to find distance d:

\(d = \sqrt{(13-13)^2+(-14-19)^2}\)

\(d = \sqrt{(0)^2+(-33)^2}\)

\(d = \sqrt{(-33)^2}\)

\(d = 33\)

Answer:

the distance between the two points is 33 units.

Step-by-step explanation:

because the two points have the same x value, we only need to consider the y values.

find the difference to solve for the distance.

\(19-(-14)\\19+14\\33\)

the answer is 33 units.

hope this helps :)

Triangle ADC also has a right angle at D, making it a right-angled triangle.

The exact value of x be 2.25.

The hypotenuse's square is equal to the sum of its two other side squares of a right-angled triangle, according to the Pythagoras theorem.

Triangle ADB exists even a right-angled triangle with right-angle at D.

Therefore, Base of Triangle ADB = BD = 4,

Height of Triangle ADB = AD = 3,

Hypotenuse of Triangle ADB = AB

Using the Pythagoras Theorem, we get,

\($\left[(A D)^2+(B D)^2\right]=(A B)^2$\)

substitute the values in the above equation, we get

or,\($(A B)^2=\left[(3)^2+(4)^2\right]$\)

simplifying the equation, we get

or, \($(A B)^2=[9+16]$\)

or, \($(A B)^2=25$\)

or, \($\sqrt{(A B)^2}=\sqrt{25}$\)

or, AB = 25

Triangle ADC is also a right-angled triangle with right-angle at D.

Therefore, Base of Triangle ADC = DC = x

Height of Triangle ADC = AD = 3,

And, Hypotenuse of Triangle ADC = AC

Using the Pythagoras Theorem, we get,

\(& {\left[(D C)^2+(A D)^2\right]=(A C)^2} \\\)

simplifying the equation, we get

\(& \text { or },(A C)^2=\left[(3)^2+(x)^2\right] \\\)

\(& \text { or },(A C)^2=\left[9+x^2\right]\)

Triangle ABC is also a right-angled triangle with right-angle at A. Therefore, Base of Triangle ABC = AC,

Height of Triangle ABC = AB = 5,

And, Hypotenuse of Triangle ABC =  BC = (4 + x)

Using the Pythagoras Theorem, we get,

\(& {\left[(A C)^2+(A B)^2\right]=(B C)^2} \\\)

\(& \text { or, }(B C)^2=\left[(A C)^2+(A B)^2\right] \\\)

substitute the values in the above equation, we get

\(& \text { or, }(4+x)^2=\left[\left(9+x^2\right)+(5)^2\right] \\\)

simplifying the equation, we get

\(& \text { or, }\left[4^2+(2 \times 4 \times x)+x^2\right]=\left[9+x^2+25\right] \\\)

\(& \text { or, }\left[16+8 x+x^2\right]=\left[(9+25)+x^2\right] \\\)

\(& \text { or, }\left[16+8 x+x^2\right]=\left[34+x^2\right] \\\)

\(& \text { or, }\left[16+8 x+x^2\right]-\left[34+x^2\right]=0 \\\)

\(& \text { or, },(16-34)+8 x+\left(x^2-x^2\right)=0 \\\)

8x - 18 = 0

8x = 18

\(& \text { or, } x=\frac{18}{8} \\\)

\(& \text { or, } x=\frac{9 \times 2}{4 \times 2} \\\)

\(& \text { or, } x=\frac{9}{4} \\\)

Therefore, the value of x be 2.25.

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