ABCD is a kite.


a.Is AD=AB?

b.Is DC=BC?

c.Is ABC= abc?

d.

The correct answers are:

- Question 8: All of these answers are correct.

- Question 9: 720.

- Question 10: Sample is used to estimate the population parameter.

- Question 11: Decreases.

- Question 12: 200 and 2.

- Question 13: Approximately normal for large sample sizes.

- Question 14: 0.9772.

Question 8: The point estimators are μ (population mean) and s (sample standard deviation). The symbol σ represents the population standard deviation, not a point estimator. Therefore, the correct answer is "All of these answers are correct."

Question 9: To determine the number of different samples of size 3 (without replacement) from a population of size 10, we use the combination formula. The formula for combinations is nCr, where n is the population size and r is the sample size. In this case, n = 10 and r = 3. Plugging these values into the formula, we get:

10C3 = 10! / (3!(10-3)!) = 10! / (3!7!) = (10 x 9 x 8) / (3 x 2 x 1) = 720

Therefore, the answer is 720.

Question 10: In point estimation, the sample is used to estimate the population parameter. So, the correct answer is "sample is used to estimate the population parameter."

Question 11: As the sample size increases, the variability among the sample means decreases. This is known as the Central Limit Theorem, which states that as the sample size increases, the distribution of sample means becomes more normal and less variable.

Question 12: The mean of the distribution of sample means is equal to the mean of the population, which is 200. The standard error of the distribution of sample means is equal to the standard deviation of the population divided by the square root of the sample size. So, the standard error is 18 / √81 = 2.

Question 13: For a population with an unknown distribution, the form of the sampling distribution of the sample mean is approximately normal for large sample sizes. This is known as the Central Limit Theorem, which states that regardless of the shape of the population distribution, the distribution of sample means tends to be approximately normal for large sample sizes.

Question 14: To find the probability that the mean from a sample of 49 observations will be larger than 82, we need to calculate the z-score and find the corresponding probability using the standard normal distribution table. The formula for the z-score is (sample mean - population mean) / (population standard deviation / √sample size).

The z-score is (82 - 80) / (7 / √49) = 2 / 1 = 2.

Looking up the z-score of 2 in the standard normal distribution table, we find that the corresponding probability is 0.9772. Therefore, the probability that the mean from the sample will be larger than 82 is 0.9772.

Overall, the correct answers are:

- Question 8: All of these answers are correct.

- Question 9: 720.

- Question 10: Sample is used to estimate the population parameter.

- Question 11: Decreases.

- Question 12: 200 and 2.

- Question 13: Approximately normal for large sample sizes.

- Question 14: 0.9772

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Answer:

Step-by-step explanation:

Given:

Use point slope form:

So the equation is:

Answer:

23

Step-by-step explanation:

so the sum of all side's of a triangle is 180

so if one angle is 62 n the other angle is 95 then to find the third angle you need to

\(62 + 95 + x = 180\)

\(157 + x = 180\)

\(x = 180 - 157\)

\(x = 23\)

hope it helps mate

have a nice day :?

Answer:

150 minutes

Step-by-step explanation:

2 hours

1 hour = 60 mins

60 + 60 = (120)

1/2 an hour = 30 mins

120 + 30 = 150

Answer:

No

Step-by-step explanation:

It comes out to 2 7/9 which comes to have a repeating number. But A line above the repeating number to symbolize it - well - repeating.

The ratio of the volume of one of alex's cans to the volume one of felicia's cans is 1:2.

The cylinder three-dimensional shape consists of two parallel circular bases connected by a curved surface.

We have to find the ratio of the volumes of the can, which are in cylinder shape.

We will find the volume first.

Diameter is given, we divide by 2 to get the radius. h is height and  is radius in the formula.

Volume=πr^2h

Volume of alex can V1= π*(6/2)^2*12

                                 =π*3^2*12

                                   =π*9*12

                                   =108π

Volume of felicia can V2= π*(12/2)^2*12

                                 =π*6^2*6

                                   =π*36*6

                                   =216π

V1:V2= 108π:216π

          =1:2

The ratio of volumes are 1:2.

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Complete question

Alex and Felicia each have cats as pets. Alex buys cat food in cylindrical cans that are 6 cm in diameter and 12 cm high. Felicia buys cat food in cylindrical cans that are 12 cm in diameter and 6 cm high. What is the ratio of the volume one of Alex's cans to the volume one of Felicia's cans?

Answer:

Midpoint=(−12,−2)

As a decimal:

Midpoint=(−0.5,−2)

Step-by-step explanation:

M=(xM,yM)

M=(x1+x22,y1+y22)

M=(3+−42,3+−72)

M=(−12,−42)

M=(−12,−2)

As a decimal:

M=(−0.5,−2)

Distance Solution: Between Endpoints

d=(x2−x1)2+(y2−y1)2−−−−−−−−−−−−−−−−−−√

d=(−4−3)2+(−7−3)2−−−−−−−−−−−−−−−−−−√

d=(−7)2+(−10)2−−−−−−−−−−−−√

d=49+100−−−−−−−√

d=149−−−√

d=12.206556

Answer:

Factored form is \((x+3)^{2}\)

Step-by-step explanation:

We have

\(x^{2} +6x+9=x^{2} +2\times3x+3^{2} \\\\=(x+3)^{2}\)

Answer:

D. 81 sq. ft.

Step-by-step explanation:

We know x, y, and z's lengths. Those are 3, 12, and 9 respectively.

I first imagined a 12 by 9 rectangle and then figured about the area of the shaded part.

The 12 by 9 rectangle is 108 sq ft, But there is a empty part on the top left. That would be a 9 ft by 6 ft triangle.

The area of a triangle can be figured out with this formula: A = bh/2 Substitute b and h for 9 and 6 respectively.

A = (9 * 6)/2

A = 54/2

A = 27 sq. ft.

Now, subtract 27 from 108 to get the area of the shaded part.

108 - 27

81 sq. ft.

The area of the tile being used is 81 sq. ft.

The estimate of the product is reasonable

The product expression is given as

759 x 68

As an estimate, we have

759 - 760

68 = 70

So, we have:

759 x 68 = 760 * 70

Evaluate the product

759 x 68 = 53200

For the actual product, we have

759 x 68 = 51612

The estimate and the actual product both approximate to 50000

Hence, the estimate of the product is reasonable

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Answer:

D

Step-by-step explanation:

Step-by-step explanation:

2x 3x5 = 30 ÷ 3 = 10

hope this helps

Answer:

∠ 1 = 120°

Step-by-step explanation:

5x + 15 and 3x - 3 are same- side interior angles and sum to 180° , then

5x + 15 + 3x - 3 = 180 , that is

8x + 12 = 180 ( subtract 12 from both sides )

8x = 168 ( divide both sides by 8 )

x = 21

Then

5x + 15 = 5(21) + 15 = 105 + 15 = 120

∠ 1 and 5x + 15 are corresponding angles and are congruent , so

∠ 1 = 120°

Answer:

\(1\)

Step-by-step explanation:

\({(4.51) }^{0} = 1\)

hope this helps you.

Answer:

B.4

Step-by-step explanation:

NASAGUTAN KO YAN TAMA AKO

Answer:

it's a just to let you know

Answer:

D. -3 < x < 2

Step-by-step explanation:

Equation: -8 < 3x + 1 < 7

First subtract the one with -8 and 7: (-8 - 1) < 3x + (1 - 1) < (7 - 1) = -9 < 3x < 6

Divide 3x with -9 and 6 : (-9)/3 < (3x / 3) < (6 / 3) = -3 < x <2

The final product is -3 < x <2

Answer:

\({ \tt{f(x) = 2}} \\ when \: y = 2 \\ { \bf{x = - 0.5}}\)

Answer:

4/3

Step-by-step explanation:

slope = rise/run =  (y1-y2)/(x1-x2) =   4 / 3

Answer:

ahah yea and its 10 by the way

Answer:

heyyyyy :)    its 10

Step-by-step explanation:

Answer:

17+6i

-----------

25

Step-by-step explanation:

2+3i

---------

4+3i

We want to multiply by the complex conjugate of the denominator

4+3i has a complex conjugate of 4-3i

2+3i             4-3i

--------- * --------------

4+3i           4-3i

Lets multiply the numerator

(2+3i) ( 4-3i)

2*4 +4*3i -3i*2 - 3i*3i =

8 +12i -6i - 9i^2

Remember i^2 = -1

8 +6i -9(-1)

17 +6i

Lets multiply the denominator

(4+3i) ( 4-3i)

4*4 +4*3i -3i*4 - 3i*3i =

16 +12i -12i - 9i^2

Remember i^2 = -1

16 -9(-1)

25

Putting numerator over denominator

17+6i

-----------

25

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

i is called the imaginary number.

i = √-1

The final expression of 3i (4 - 3i) - i(2 + 1) after simplification is 9i + 9.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

3i (4 - 3i) - i(2 + 1)

i is called the imaginary number.

i = √-1

Remove the parenthesis.

3i x 4 - 3i x 3i - i x 2 - i x 1

12i - 9i² - 2i - i

[ i² = -1 ]

12i + 9 - 2i - i

Add like terms

12i + 9 - 3i

9i + 9

Thus,

The final expression of 3i (4 - 3i) - i(2 + 1) after simplification is 9i + 9.

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Answer:

The equation of Nolan's line is \(y=2x+3\)

Step-by-step explanation:

The slope-intercept form of a line is given by:

\(y=mx+b\)

Here

m is the slope of the line

and b is the y-intercept.

Given

y-intercept = b = 3

slope = m = 2

The values of m and b can be put into the equation to find the line's equation

So,

Putting the value

\(y = 2x+3\)

Hence,

The equation of Nolan's line is \(y=2x+3\)

Answer:

The answer is y 2x + 3.

Step by step:

Because i know

Answer:

She has 6 hours left.

Step-by-step explanation:

She started with 3 hours saved and got 2 more hours for each day that she did her chores and ate her vegetables.  Since she did her chores and ate her vegetables 4 days that means that in total she gained 8 hours (4 * 2) plus the ones she already had saved.   So 8 + 3 = 12 - 6 = 6

Please give brainliest

This refers to the ratio between the scale of a given original object and a new object. It is its representation but of a different size (bigger or smaller). For example, if we have a rectangle of sides 2 cm and 4 cm, we can enlarge it by multiplying each side by a number, say 2.

Solving for the area and scale factor we have:

L= 5 units

W = 2 units

A = (5 x 2)

A = 10 square units.

A= (Scale factor of  L * W)*  L * W

= (2 x 2 x 5 x 2)

A = 40 square units.

A= (Scale factor of  L * W)*  L * W

= (3 x 3 x 5 x 2)

A= 90 square units

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Answer:

B: 4,000

Step-by-step explanation:

32000/8=4000

Answer:

4000

Step-by-step explanation:

32000/8............

Answer:

x = - 3 ± \(\sqrt{10}\)

Step-by-step explanation:

Given

4x² + 24x = 4 ( divide through by 4 )

x² + 6x = 1

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(3)x + 9 = 1 + 9

(x + 3)² = 10 ( take the square root of both sides )

x + 3 = ± \(\sqrt{10}\) ( subtract 3 from both sides )

x = - 3 ± \(\sqrt{10}\)

Answer:

X=1/8

Step-by-step explanation:

Calculate the product 4x×2 + 24x = 4

Collect like terms 8x + 24x = 4

Divide both sides of the equation by "32" 32x = 4

Solution x = 1/8

Answer:

-41/12 or -3 5/12

Step-by-step explanation:

4*2 +1 = 9,  5 * 3 + 2 = 17

9/4 - 17/3

27/12 - 68/12

= -41/12 or -3 5/12

The values of g(-4), g(-2), and g(3) are -5, undefined, and -11, respectively. The function g is defined differently for x = -2 and other real numbers, resulting in different output values.

Given the function g(x) = {(-4/1)(x-2) - (1/1)(x+2), if x ≠ -2; undefined, if x = -2}, we can evaluate g(-4), g(-2), and g(3) as follows:

1. g(-4):

Since -4 ≠ -2, we use the first part of the definition of g(x). Plugging in x = -4, we have:

g(-4) = (-4/1)(-4-2) - (1/1)(-4+2)

      = (-4/1)(-6) - (1/1)(-2)

      = 24 + 2

      = 26

Therefore, g(-4) = 26.

2. g(-2):

Since x = -2 matches the condition in the second part of the definition of g(x), g(-2) is undefined.

3. g(3):

Since 3 ≠ -2, we use the first part of the definition of g(x). Plugging in x = 3, we have:

g(3) = (-4/1)(3-2) - (1/1)(3+2)

     = (-4/1)(1) - (1/1)(5)

     = -4 - 5

     = -9

Therefore, g(3) = -9.

In summary, g(-4) = 26, g(-2) is undefined, and g(3) = -9. The function g(x) has different output values depending on whether x is equal to -2 or not.

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