PLEASE HELP!!

Quadrilateral ABCD is inscribed in circle O as shown below.


Which of the following would be used to find the m∠3?


A. 90°+m∠4


B. 180°−m∠1


C. 270°+m∠2


D. 360°−(m∠1+m∠2)

Answer:

he went on 14 rides.

Step-by-step explanation:

take your total, 38, subtract that by 10 (because you have to pay the admission fee) and you have 28 dollars spent on rides. each ride costs 2 dollars so divide 28 by 2 and you get 14.

Answer:

The test value is z = -1.31.

Step-by-step explanation:

The Eagle Ridge Contractors Association claims the average price of a home in their subdivision is $125,150.

This means that the null hypothesis is that the mean is this value, that is:

[tex]H_0: \mu = 125150[/tex]

The Eagle Ridge Home Owners Association is interested in knowing if the costs of homes for sale in this subdivision are actually lower than claimed.

This means that at the alternate hypotehsis we test that the mean is lower than that value, that is:

[tex]H_a: \mu < 125150[/tex]

The test statistic is:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.

125150 is tested at the null hypothesis:

This means that [tex]\mu = 125150[/tex]

Standard deviation of $7,350.

This means that [tex]\sigma = 7350[/tex]

A sample of 36 homes for sale in this subdivision had an average selling price of $123,550.

This means that [tex]n = 36, X = 123550[/tex]

Compute the test value.

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

[tex]z = \frac{123550 - 125150}{\frac{7350}{\sqrt{36}}}[/tex]

[tex]z = -1.31[/tex]

The test value is z = -1.31.

Answer: 4.5

Step-by-step explanation:

[tex]5(2x+1)=50\\\\2x+1=10\\\\2x+9\\\\x=\boxed{4.5}[/tex]

Answer:

Step-by-step explanation:

The graphs can be seen in the picture attached below where

y= sin x is the red wave

y= sin 2x is the blue wave

y=2 sin x  is the green wave

Each graph is obviously a wave in shape but where they all differentiate is in the frequency and amplitude of the wave. Meaning how often a wave cycle repeats in the functional and how high and low the wave cycles actually get. That is where the difference takes place sinx has wider wave cycles than the other two. sin2x has the shortest wave cycles, almost twice for everyone red wave cycle. While 2sinx has the highest and lowest amplitude of all of the waves.

Answer:

80°

Step-by-step explanation:

In rhombus, opposite angles are equal. i.e <KET = <KIT

Triangle KET is isoceles, which means both parts of angle E are equal.

Angle E = 40 + 40

Angle E = 80

If angle E is 80 than Angle I is also 80.

Answer:

2y = 7

y = 3 1/2

Step-by-step explanation:

Step-by-step explanation:

2x + x+4+x = 180

4x = 176

x = 44

A 88

B 48

C 44

Answer:

y = 2/3x - 2

Step-by-step explanation:

If two lines are parallel to each other, they have the same slope.

The first line is y = 2/3x + 1. Its slope is 2/3. A line parallel to this one will also have a slope of 2/3.

Plug this value (2/3) into your standard point-slope equation of y = mx + b.

y = 2/3x + b

To find b, we want to plug in a value that we know is on this line: in this case, it is (3, 0). Plug in the x and y values into the x and y of the standard equation.

0 = 2/3(3) + b

To find b, multiply the slope and the input of x (3)

0 = 2 + b

Now, subtract 2 from both sides to isolate b.

-2 = b

Plug this into your standard equation.

y = 2/3x - 2

This equation is parallel to your given equation (y = 2/3x + 1) and contains point (3, 0)

Hope this helps!

Answer:

6.25 feet squared of fabric needed

Step-by-step explanation:

4:5 placemats:fabric

then

5:6.25

Answer:

D] 5.4 units

Step-by-step explanation:

explanation is in the picture.

Answer:

• 25%

• Drama movie

Step-by-step explanation:

• Total number of children

= 16 +12 +18 +20 +14

= 80

Percentage of children that voted for action movie

[tex] = \frac{no. \: of \: children \: that \: voted \: for \: action \: movie}{total \: number \: of \: children} \times 100\%[/tex]

[tex] = \frac{20}{80} \times 100\%[/tex]

[tex] =\textbf{25\%}[/tex]

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

• Total number of votes

= 30 +32 +36 +36 +26

= 160

20% of total votes

= 20% ×160

= 32 votes

Since Drama movie received 32 votes, it received 20% of the total votes.

Answer:

5(5x-2y)

Step-by-step explanation:

To find the equivalent expression, you can perform the distributive property for each equation. for a, you multiply 5 by each term in the parentheses. you will get 25x-10y.

Hope this helps!

Answer:

11

Step-by-step explanation:

f(x)=3x+8

f(1)=3(1)+8

f(1)=3+8

f(1)=11

Answer:

The anwser is 11

Step-by-step explanation:

You just replace x with 1, and solve, so it would be 3(1) + 8, which is 11.

Answer:

a = 0.8

Step-by-step explanation:

a varies jointly as b and c.

This means that a can be written as a constant k multiplied by b multiplied by c, that is:

[tex]a = kbc[/tex]

One set of values is a = 2.4, b = 0.6, and c = 0.8.

We use this to find the value of k:

[tex]2.4 = k(0.8)(0.6)[/tex]

[tex]0.48k = 2.4[/tex]

[tex]k = \frac{2.4}{0.48}[/tex]

[tex]k = 5[/tex]

So

[tex]a = 5bc[/tex]

Find a when b = 0.4 and c = 0.4.

[tex]a = 5bc = 5(0.4)(0.4) = 5(0.16) = 0.80[/tex]

The answer is a = 0.8.

Answer:

x=135

Step-by-step explanation:

The two angles are supplementary, meaning they both add up to 180°.

So to find the value of one angle, simply subtract 50 from 180.

180-50=130

So now we know that 130 is equal to the expression.

x-5=130

Add 5 to both sides.

x=135

Answer:

Green = 13.5 ft²

Blue = 42 in²

Step-by-step explanation:

Green: 6+3=9

9÷2=4.5

4.5x3=13.5

Blue: 8+13=21

21÷ 2=10.5

10.5x4=42

Answer:

10.3

Step-by-step explanation:

Recall SOH, CAH, TOA

In this case we have the hypotonouse is given (the hyptonouse is the side that is opposite from the right angle) and we need to solve for the opposite

therefore we will use SOH

we have

sin(69)=x/11

11*sin(69)=x

x=10.269

which rounds to

10.3

Answer:

[tex] \displaystyle \: x= 10.3[/tex]

Step-by-step explanation:

we are given hypotenuse and [tex]\theta[/tex]

we want to figure out x (opposite)

remember that,

[tex] \displaystyle \: \sin( \theta) = \frac{opp}{hypo} [/tex]

here our [tex]\theta [/tex] is 69°

and hypo is 11 and opp is x

so substitute:

[tex] \displaystyle \: \sin( 69 ^{ \circ} ) = \frac{ x}{11} [/tex]

cross multiplication:

[tex] \displaystyle \: x= 11 \sin( 69 ^{ \circ} ) [/tex]

by using calculator:

[tex] \displaystyle \: x= 10.3[/tex]

Answer:

67.9 min < μ < 113.5 min

Step-by-step explanation:

Calculation to determine the confidence interval estimate

First step is to find alpha (α/2)

α =1-0.98

α=0.02/2

α= 0.01

Second step is to determine ± zα/2

z-score of 1.0000 - 0.0100 = .9900 using normal distribution table

z-score = ± 2.33

Now Let determine the confidence interval estimate using this formula

X ± zα/2(σ/√n)

Where,

Confidence Interval (CI) = .98

X = 90.7

n = 20

σ = 43.7

Let plug in the formula

Confidence interval estimate = 90.7 ± 2.33 (43.7/√20)

Confidence interval estimate= 90.7 ± 22.76786775

Confidence interval estimate=90.7 - 22.76786775 < μ < 90.7 + 22.76786775

Confidence interval estimate= 67.9 min < μ < 113.5 min

Therefore the confidence interval estimate will be 67.9 min < μ < 113.5 min

Answer:

72

Step-by-step explanation:

162= 4x+8+6x-6

160=10x

x=16

4(16)+8== 72

PART A: Two pieces of information that are included by the graph are the minimum value (20)  and the maximum value (95). One piece of information that is not included in the graph is the number of students who surf the internet. (this one doesn't really need a step by step because it is just analyzing a graph)

PART B:  The IQR is equal to 20. The IQR represents the mid-spread, or 50% of the data.

Step-By-Step:

To find the IQR, you need to subtract the first quartile from the third quartile. So to find the IQR we would need to subtract 60 (Q3) and 40 (Q1),

60-40 = 20

= 20.

20 is the IQR

PART C: If an outlier is present, it may affect the mean, but will not change the median or the mode.

Step-By-Step: An outlier is an abnormally large (or small) number in a given data set.

Best of luck,

Some 6th grader.

PART A: Two pieces of information that are included by the graph are the minimum value (20)  and the maximum value (95). One piece of information that is not included in the graph is the number of students who surf the internet. (this one doesn't really need a step by step because it is just analyzing a graph)

PART B:  The IQR is equal to 20. The IQR represents the mid-spread, or 50% of the data.

Step-By-Step:

To find the IQR, you need to subtract the first quartile from the third quartile. So to find the IQR we would need to subtract 60 (Q3) and 40 (Q1),

60-40 = 20

= 20.

20 is the IQR

PART C: If an outlier is present, it may affect the mean, but will not change the median or the mode.

Step-By-Step: An outlier is an abnormally large (or small) number in a given data set.

Best of luck,

Awesome (like me) Fellow sixth grader :)

Answer:

Answer B

Step-by-step explanation:

Answer:

25π

Step-by-step explanation:

pi's symbol is π, which will be used sometimes to make it easier later

The circumference is equal to diameter multiplied by pi. (Diameter is the length across the circle, radius the center of the circle to an edge point aka. half the diameter, and circumference is the edge length aka. perimeter of the circle.)

We can then remove the pi off the 10, as the diameter multiplied by pi is the circumference, so the diameter is 10.

Half of 10 is 5, the radius.

The formula for area of a circle is radius squared times pi, remember easily by π r ^2

We can plug in the radius into the formula to get

π 5 ^2

And finish it by solving the square root to get

π 25

25π

Answer:

5%

Step-by-step explanation:

How many centimeters are in one meter? (Hint: 100)

How many centimeters are in four meters? (Hint: Multiply by 4)

What fraction expressions 20 centimeters as a portion of four meters (when the meters are expression in centimeters)?

After doing the division indicated by the fraction, what decimal do you get?

After moving the decimal point two places to the right, what percentage do you get?

Your answer should be somewhere between 3% and 15%.

Hope you found this helpful!!

THANK YOU!

∝ Sidhdi

Answer:

The answer is -0.828

Step-by-step explanation:

I took the quiz and i gt this question correct, hope it helps!

The r-value of the given data is 0.374.

The correlation coefficient, denoted as r, is a statistical measure that describes the strength and direction of the linear relationship between two variables.

It ranges between -1 and +1, where -1 indicates a perfect negative correlation (inverse relationship), +1 indicates a perfect positive correlation (direct relationship), and 0 indicates no correlation between the variables.

We have,

First, we need to find the correlation coefficient (r) of the given data.

We can use the following formula to do this:

r = [n∑(xy) - (∑x)(∑y)] / [√{n∑x² - (∑x)²} √{n∑y² - (∑y)²}]

where n is the number of data points, x, and y are the respective variables, and ∑ denotes the sum of the values.

Using the given data, we can calculate the values as follows:

n = 5

∑x = 39

∑y = 53

∑(xy) = 442

∑x^2 = 483

∑y^2 = 1249

Substituting these values into the formula, we get:

r = [5(442) - (39)(53)] / [√{5(483) - (39)^2} √{5(1249) - (53)²}]

r = [2210 - 2067] / [√(2415) √(5660)]

r = 143 / (61.898 75.245)

r = 0.374 (rounded to three decimal places)

Therefore,

The r-value of the given data is 0.374.

Learn more about correlation coefficient here:

#SPJ7

Answer:

144

Step-by-step explanation:

A square room has all sides the same length

the perimeter is the length of the sides (which are the same length) therefore dividing it by 4 to get the length of 1 side multiplied by itself will give us the area to be covered.

Answer:

$47

Step-by-step explanation:

Given data

Cost= $50

Tax= 4%

Tip= 10%

Let us find the amount of the Tax

=4/100*50

=0.04*50

=$2

Let us find the amount of the Tip

=10/100*50

=0.1*50

=$5

Hence the total amount is

=50+2-5

=52-5

=$47

Answer:

itd be the last one

Step-by-step explanation:

because of the process lol

Answer:

ijhofhoiffho[hoi[hjkkhj

Step-by-step explanation:

e3gyqi3rqrqugrqugfugfufgfiohwefuohfewihuiu