What is the minimum sample size required to estimate a population mean with 90% confidence when the desired margin of error is D

Answer:

scalene right

Step-by-step explanation:

A scalene right has no equal side lengths, has a right side(90) and will have two angles less than 90 because all three triangle sides need to equal to be 180. So scalene right is your answer. Hope that helped!

The correct options are -

When something is bought on credit, an initial payment is made in the form of a down payment.

Given is that Renata is purchasing a condominium for $125,000. She wants to put down a down payment of 20%.

We can calculate the amount she is putting in down payment as -

{x} = 20% of 125000

{x} = 20/100 x 125000

{x} = 20 x 1250

{x} = 25000

Therefore, the correct options are -

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The set of ordered pairs above: is a function.

The mapping diagram above: is a function.

y = x²: is a function.

The table above: is not a function.

In Mathematics and Geometry, a function is a mathematical equation which is typically used for defining and representing the relationship that exists between two or more variables such as an ordered pair.

Based on the set of ordered pairs, mapping diagram, and the equation above, we can reasonably infer and logically deduce that it represent a function because the input values (domain, x-value, or independent values) are uniquely mapped to the output values (range, y-value or dependent values).

In this context, we can reasonably infer and logically deduce that the table does not represent a function because the input value (-1) has more than output values (2 and 4 respectively).

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The component form of the vector is <3, -5, 6>, the magnitude of the vector is √70, then the unit vector is <0.386, -0.643, 0.643>.

The initial and terminal points to find the component form of the vector, calculated its magnitude, and then divided the component form by the magnitude to find a unit vector in the direction of v.

To find the component form of the vector, you can subtract the coordinates of the initial point from the coordinates of the terminal point. In this case, we have:

v = (4, 1, 6) - (1, 6, 0)

v = (3, -5, 6)

So the component form of the vector is v = <3, -5, 6>.

To find the magnitude of the vector, we can use the formula:

|v| = √(3² + (-5)² + 6²)

|v| = √70

Therefore, the magnitude of the vector is √70.

Finally, to find a unit vector in the direction of v, we can divide the component form of v by its magnitude:

u = v/|v|

u = <3/√70, -5/√70, 6/√70>

So the unit vector in the direction of v is u = <0.386, -0.643, 0.643>.

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Value of m and b of the straight line in the graph is 0 and 2 respectively.

In mathematics, slope refers to the steepness or inclination of a line, and is defined as the ratio of the change in the y-coordinate to the change in the x-coordinate between any two points on the line. It is often represented by the letter m. The slope of a line can be positive, negative, zero, or undefined.

Let us assume that the equation of line be y=mx+b.

where m is the slope

and b is the intercept

The line in the graph is parallel to x axis

so, slope is 0

m=0

the line passes through(0,2)

Putting the value in the equation, we get

b=2

Hence, the equation of line be y=2

Therefore, value of m=0 and b=2.

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The complete question is:

The graph is showing the equation of straight line y=mx+b, find the value of m and b.

Image is attached below:

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Answer:

1

Step-by-step explanation:

Divide each term by  

0.5  and simplify.

Divide each term in  

0.5 ( 5 x + 1 ) = 3  by  0.5 . 0.5 ( 5 x + 1 ) 0.5

= 3 0.5 Cancel the common factor of  0.5 . 5 x + 1 = 3 0.5  Divide  3  by  0.5 .

5 x  + 1  = 6

Move all terms not containing  

x

to the right side of the equation.

Subtract  1  from both sides of the equation.

5 x  =  6  −  1  Subtract  1  from  6 . 5 x =  5

Divide each term by  

5  and simplify.

Divide each term in  5 x = 5  by  5 . 5 x 5 = 5 5

Cancel the common factor of  5 .

Cancel the common factor.

5 x 5 = 5 5  Divide  x  by  1 .  x = 5 5  Divide  5  by  5 .

x  =  1

Answer:

Every relation isn't a Function but every function is a relation.

Answer: CHINA

Step-by-step explanation:

IAS CHINADU

Answer:

Bhutan is the answer.

A²+B²= C²

31²+ 21²= z²

961+441 = z²

1402= z²

z= 37.443290454

Answer:

\(-\frac{7}{3}\)  or -2.333333333

Step-by-step explanation:

 to fine the slope you use rise/run= \(\frac{(-3)-4}{2-(-1)}\)  

Answer: The equation y = 3x - 4 is a linear equation in slope-intercept form, where the slope (3) is the coefficient of x and the y-intercept (-4) is the constant term. To find a solution for this equation, we can substitute a specific value of x and solve for the corresponding value of y.

For example, if we let x = 2, we can substitute it into the equation:

y = 3(2) - 4 = 6

So the solution for x=2 is y=6

We can also graph this equation, it will be a straight line with slope 3 and y-intercept (-4)

Step-by-step explanation:

Answer:

this might help you....

Answer:

See below.

Step-by-step explanation:

In the figure above, ∠WXY and ∠YXZ are a linear pair.

A Linear Pair is 2 angles that are adjacent, and form a straight line when combined. A Linear Pair contains 2 Supplementary Angles, angles that add up to 180°.

Their measures add up to 180°.

In order to find y, because they're a linear pair, we can set up an equation with the 2 angles equal to 180°.

\(4y+6y+30=180\)

Combine Like Terms:

\(10y+30=180\)

Subtract 30 from Both Sides:

\(10y=150\)

Divide by 10:

\(\frac{10y}{10} = \frac{150}{10} \\y = 15.\)

The value of y is 15.

Now since we know the value of y, we can substitute 15 into each angle to find their measure.

Substitute:

\(4(15)=60\\6(15)+30=120\)

The measure of ∠WXY is 60° and the measure of ∠YXZ is 120°.

As per the dimension of the parallelogram, the perimeter of the parallelogram is 192 units.

Identify the sides: The given values represent the lengths of three sides of the parallelogram. Side a and side b are the base and the opposite side, respectively. The height (h) is the perpendicular distance between the base (a) and the opposite side (b).

Perimeter formula: The perimeter (P) of a parallelogram is the sum of the lengths of all four sides. Since opposite sides of a parallelogram are equal in length, the perimeter formula can be expressed as

P = 2(a + b).

Calculate the perimeter: Now, we will substitute the given values into the perimeter formula to find the perimeter of the parallelogram:

P = 2(a + b)

P = 2(49 + 47)

P = 2(96)

P = 192

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Answer:

1) x = -6, 8

2) x = -1 + i√2

Step-by-step explanation:

1)

\( {x}^{2} - 2x - 48 = 0\)

\((x - 8)(x + 6) = 0\)

x = -6, 8

2)

\(3 {x}^{2} + 2x + 1 = 0\)

x = (-2 + √(2^2 - 4(3)(1))) / (2 × 1)

x = (-2 + √(4-12)) / 2

x = (-2 + √-8) / 2

x = (-2 + 2i√2) / 2

x = -1 + i√2

Answer:c, the answer is c

Step-by-step explanation:

Answer:

I don't understand oof oof

Step-by-step explanation:

Answer:

B is the answer- positive y and negative x

Answer: He will need to mow 7 lawns.

Step-by-step explanation:

He already has $20

90-20=70

70/10=7

Answer:

4 more units

Step-by-step explanation:

1.25x + 12.00 > 15.75

1.25(4) =5

5 + 12 = 17

Step-by-step explanation:

Letter X has rotational symmetry

The correct value for the given equation h(x) is h(0) = 10 and h(4) = 16.

The sign function or signum function (from signum, Latin for "sign") is an odd mathematical function that extracts the sign of a real number.

Here,

h(0) = 2 X 0² - 3 X 0 + 10 = 10

and h(4) = 2⁴

      h(4) = 16

Thus, the correct value for the given equation h(x) is h(0) = 10 and h(4) = 16.

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Answer:

3/4 W + 8 = M. M is the total miles

The required expression to show the distance Leah bikes in a training session after w weeks is 8 + 3w/4.

Given that,
She starts by biking 8 miles during every training session, and each week she plans to increase the distance of her training session by 3/4 miles.

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,

Here,

She starts by biking 8 miles during every training session,
increase the distance of her training session by mile 3/4 miles
Let w be the number of weeks.
Total increase = 3w / 4
Total distance travel = 8 + 3w/4

Thus, the required expression to show the distance Leah bikes in a training session after w weeks is 8 + 3w/4.

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Answer:

the probability of rolling a sum of 12 on a pair of dice in Monopoly is approximately 0.028.

Step-by-step explanation:

There are 6 possible outcomes on each die, so there are 6 x 6 = 36 possible outcomes when rolling a pair of dice. To find the probability of getting a sum of 12, we need to count the number of outcomes that add up to 12 and divide by the total number of outcomes.

The only way to get a sum of 12 is to roll a 6 on both dice. There is only 1 way to do this, so the number of outcomes that add up to 12 is 1.

Therefore, the probability of getting a sum of 12 is:

1/36 ≈ 0.028 (rounded to 3 decimal places)

So the probability of rolling a sum of 12 on a pair of dice in Monopoly is approximately 0.028.

We must classify the following polynomial:

Looking at this polynomial, we see that:

• it has three terms ⇒ it is a trinomial,

• the term with the highest degree is 9x²y with degree 2 + 1 = 3 ⇒ the polynomial has degree 3.

We conclude that we have a trinomial with a degree of 3.

It is a trinomial with a degree of 3.

The linear function is given as follows:

\(y = \sqrt{x} + 4\)

The slope-intercept equation for a linear function is presented as follows:

y = mx + b

In which:

The y-intercept is of 4, hence the parameter b is given as follows:

b = 4.

The line is inclined to 60° with the positive direction of X-axis, hence the slope m is given as follows:

m = tan(60º)

\(m = \sqrt{3}\)

Thus the function is given as follows:

\(y = \sqrt{x} + 4\)

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