Is -90 a rational number help

Answer:

your question is wrong put correct question the answer!

Answer:

The answer is 12 (A)

Step-by-step explanation:

Trust

also I took the test

Answer:

7:20

Step-by-step explanation:

Its very complex i know

To find the point on the hyperbola xy = 8 that is closest to the point (3, 0), we can use the distance formula. The distance between two points (x1, y1) and (x2, y2) is given by the formula:

Distance = √[(x2 - x1)² + (y2 - y1)²]

Let's denote the coordinates of the point on the hyperbola as (x, y). Substituting the given coordinates (3, 0) and the equation of the hyperbola xy = 8 into the distance formula, we get:

Distance = √[(x - 3)² + (y - 0)²]

Now, we need to minimize this distance. Since the distance is squared, we can minimize the square of the distance, which is:

Distance² = (x - 3)² + y²

To minimize this expression, we can take its derivative with respect to x and y and set them equal to zero. Let's differentiate Distance² with respect to x and y:

d(Distance²)/dx = 2(x - 3)

d(Distance²)/dy = 2y

Setting these derivatives equal to zero, we have:

2(x - 3) = 0 => x = 3

2y = 0 => y = 0

Therefore, the point on the hyperbola xy = 8 that is closest to the point (3, 0) is (3, 0).

Note that the distance from (3, 0) to any point on the hyperbola xy = 8 is always the same, which means the hyperbola is equidistant from the point (3, 0).

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The probability that a sample of 4 bags will have a mean weight of fewer than 9.8 pounds will be 0.05.

It is defined as the measure of data disbursement, It gives an idea about how much is the data spread out.

\(\rm \sigma = \sqrt{\dfrac{ \sum (x_i-X)}{n}\)

σ is the standard deviation

xi is each value from the data set

X is the mean of the data set

n is the number of observations in the data set.

Given that, a fertilizer manufacturer produces fertilizer in 10-pound bags with a standard deviation of 0.24 pounds per bag, Normally, the bag weights are distributed.

Given the data in the question;

μ= 10-pound bags

standard deviation s= 0.24 pounds

sample size n = 4

Typically, the bag weights are distributed as follows:

p( x' less than 9.8 ) will be;

p(  (x'-μ_x' / s_x')   <   (9.8-μ_x' / s_x')  )

As we know that;

μ_x' = μ_x = 10

and s_x' = s_x/√n = 0.24/√4

Put the value as

p(  z  <  ( (9.8 - 10) / (0.24/√4)  )

p(  z  <  -0.2 / 0.12   )

p(  z  <  -1.67   )

{ From z-table }

⇒ p(  z  <  -1.67   ) = 0.0475 ≈ 0.05

Thus, the probability that a sample of 4 bags will have a mean weight of fewer than 9.8 pounds will be 0.05.

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To know chi-square goodness-of-fit test conducted to determine whether the data provide convincing evidence that the distribution has changed. The test statistic was 10.13 with a p-value of 0.0175.

To ascertain if the observed data adheres to a predetermined distribution, the chi-square goodness-of-fit test is utilised.

The test statistic is determined using the following formula: 2 = [(O - E)2 / E]where 2 is the test statistic, is the sum of all the categories, and O and E are the observed and predicted frequencies.

If the null hypothesis is true, the p-value is the likelihood that a test statistic will be equally extreme or more extreme than the observed one.

The null hypothesis in this situation is that the distribution has not altered.

If the p-value is less than 0.05, we reject the null hypothesis and come to the conclusion that there is a statistically significant difference between the observed and predicted frequencies, indicating that the distribution has really changed. This is because the generally used significance level is 0.05.

The test statistic in this instance is 10.13, and the p-value is 0.0175.

We reject the null hypothesis since the p-value is less than 0.05 and come to the conclusion that the data is strong evidence that the distribution has altered.

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Answer:14

Step-by-step explanation

The answer is PROBABLY a whole number.

(2) 10^3 = 1000; 20^3 = 8000. So the number is between 10 and 20; and closer to 10.

(3) Of the possible answers 11, 12, 13, and 14, only one of them has units digit 4 when raised to the 3rd power.

Answer:

L=14m

Step-by-step explanation:

volume of a cube =L×L×L

V=L³

2744=L³

L=³√2744

L=14m

3. the answer is 8

6. the answer is 7

Answer:

48/8=6

56/7=8

Step-by-step explanation:

48÷ 8 = 6

56÷ 7 = 8

Answer:

$700 for 35 people but if you want to add the fee it will be $850

Answer:

x = √10

Step-by-step explanation:

3x² = 30

Divide both sides by 3.

x² = 10

x = √10

Answer:

AB - secant

DB - diameter

AB - chord

OB - radius

BC - tangent

(In the order they are in the picture)

Step-by-step explanation:

AB - The line goes through the circle and does not go through the center. This fits  the definition of a secant, so line AB is a secant.

DB - Segment DB goes through the center and has endpoints on the circle. This fits the definition of a diameter, so DB is a diameter.

AB - Segment AB has endpoints on the circle and does not go through the center. This fits the definition of a chord, so segment AB is a chord.

OB - Segment OB is basically from the center to a point on the circle. This fits the definition of a radius, so segment OB is a radius.

BC - Line BC intersects the circle in only one point and does not go through it. This fits the definition of a tangent, so line BC is a tangent.

a) The range is 14.

b) The sample variance is 20.78.

c) The sample standard deviation is 4.56.

a) Range

The range of a given set of data values is the difference between the maximum and minimum values in the set. In this case, the maximum value is 15 and the minimum value is 1. So, the range is:

Range = maximum value - minimum value

Range = 15 - 1

Range = 14

b) Sample variance

To calculate the sample variance, follow these steps:

1. Calculate the sample mean (X). To do this, add up all of the data values and divide by the total number of values:

n = 9

∑x = 7 + 4 + 6 + 12 + 8 + 15 + 1 + 9 + 13 = 75

X = ∑x/n = 75/9 = 8.33

2. Subtract the sample mean from each data value, square the result, and add up all of the squares:

(7 - 8.33)² + (4 - 8.33)² + (6 - 8.33)² + (12 - 8.33)² + (8 - 8.33)² + (15 - 8.33)² + (1 - 8.33)² + (9 - 8.33)² + (13 - 8.33)² = 166.23

3. Divide the sum of squares by one less than the total number of values to get the sample variance:

s² = ∑(x - X)²/(n - 1) = 166.23/8 = 20.78

Therefore, the sample variance is 20.78 (rounded to two decimal places).

c) Sample standard deviation

To calculate the sample standard deviation, take the square root of the sample variance:

s = √s² = √20.78 = 4.56

Therefore, the sample standard deviation is 4.56 (rounded to two decimal places).

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Instead of attempting to remember each numeral individually, Wayne chooses to memorize the series of four ages. Wayne is employing a tactic known as "chunking."

In a "chunking" project, students rewrite the "portions" of a challenging material in their own words after breaking it down into more digestible chunks.

Thus, when instead of attempting to remember each numeral individually, Wayne chooses to memorize the series of four ages. Wayne is employing a tactic known as "chunking."

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9514 1404 393

Answer:

  d.  76(cos(3π/16) +i·sin(3π/16))

Step-by-step explanation:

To form the product of 38cis(π/8) and 2cis(π/16), multiply the magnitudes and add the angles:

  38cis(π/8) × 2cis(π/16) = (38×2)cis(π/8 +π/16) = 76cis(3π/16)

___

In this context, a·cis(b) ≡ a(cos(b) +i·sin(b))

Answer:

What do you need help with?

Step-by-step explanation:

Answer:

what is the problem?

Step-by-step explanation:

6\(\frac{3}{4}\) teaspoons of baking powder will be needed to make 3 dozen muffins.

The unitary method is a method in which you find the value of a unit and then the value of a required number of units.

In the unitary method, the value of a unit quantity is calculated first to calculate the value of other units. It has two types of variations.

We can use the unitary method to solve the given question.

It is given that for 8 muffins 1\(\frac{1}{2}\) teaspoons of baking powder is required.

And we need to find the amount of baking powder for 3 dozen muffins.

3 dozen= 3×12          because 1 dozen has 12 muffins

= 36 muffins

Now,

1\(\frac{1}{2}\) or 1.5 teaspoon for 8 muffins

Then how many teaspoons for 36 muffins

So,

1.5×\(\frac{36}{8}\)

= \(\frac{54}{8}\)

=6.75

=6\(\frac{3}{4}\) teaspoons

So 6\(\frac{3}{4}\) teaspoons are required.

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Answer:

c

Step-by-step explanation:

Answer:  2.25 x 10 -7   -7 is the exponent

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the

10  If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

“What is the equation of the line that passes through the point (6, 1) and has a slope of -5/6?”

So the equation is y = (-5/6) x + 6.

Answer:

Point-slope form: y - 1 = -(5/6)(x - 6)

Slope-intercept form: y = -(5/6)x + 6

Standard form: 5x + 6y = 36

Step-by-step explanation:

\(y - 1 = - \frac{5}{6} (x - 6)\)

\(y - 1 = - \frac{5}{6} x + 5\)

\(y = - \frac{5}{6} x + 6\)

\( - 6y = 5x - 36\)

\( - 5x - 6y = - 36\)

\(5x + 6y = 36\)

The wall is 17.0 ft from the point ladder touches the wall

The length of the ladder = 18 ft

The angle the ladder makes with the wall = 71°

We need to find the distance betwen the base of the wall and the point the ladder touches the wall.

To solve this, we will do an illustration of the scenario:

Let x = distance between the base of the wall and the point the ladder touches the wall

To get x, we will apply sine ratio (SOH):

The wall is 17.0 ft from the point ladder touches the wall

Step-by-step explanation:

x^2 + 10 = 0

x^2 = -10

x =  ± i \(\sqrt{10}\)

Answer:

y = -3x + 5

Step-by-step explanation:

(2, -1); m = -3

y - y1 = m(x - x1)

y + 1 = -3(x - 2)

y + 1 = -3x + 6

y = -3x + 5

Answer:

its 20 just look it up

Step-by-step explanation:

Well if the base is 5 and the height is 4 then the area will be 20

If the base is 4 and the height is 5 then the area will also be 20

Answer:

He spends 20 percent of his free time reading so I think its 1 hour and 48 minutes.

Answer:

x = 7

Step-by-step explanation:

3x²+5=152

3x²=147

x²=147/3

x² = 49

x = 7

Answer:

x =±7

Step-by-step explanation:

3x²+5=152

To find x, subtract 5 from each side

3x²+5-5=152-5

3x²=147

Divide each side by 3

3x²/3=147/3

x²=49

Take the square root of each side

\(\sqrt{x^{2} }=\sqrt{49}\)

x =±7

Answer:

8a+2

Step-by-step explanation:

add up all the A's then add up the numbers

SOLUTION

From the question, we can see that the figure represented below is

RECTANGULAR PRISM.................OPTION C

Answer:

The petrol used was 0.1 litre for every 1 kilometre.

The problem can be modeled as a linear programming problem. We need to minimize the total cost of shipping the boots, which can be represented as a linear combination of the shipment quantities.

Thus, the objective function to be minimized can be written as:

Minimize Z = 4x11 + 5x12 + 7x13 + 6

32 + y33 ≤ 40 (capacity limit at warehouse 3)

y41 + y42 + y43 ≤ 30 (capacity limit at warehouse 4)

y51 + y52 + y53 ≤ 45 (capacity limit at warehouse 5)

xij, yjk ≥ 0 (non-negativity constraint)

Thus, the complete linear programming problem can be formulated as:

Minimize Z = 4x11 + 5x12 + 7x13 + 6x21 + 4x22 + 5x23 + 4y11 + 3y12 + 6y13 + 5y21 + 5y22 + 4y23 + 6y31 + 7y32 + 5y33 + 4y41 + 6y42 + 5y43 + 5y51 + 4y52 + 6y53

Subject to:

x11 + x12 + x13 ≤ 60

x21 + x22 + x23 ≤ 90

x11 + x21 = y11 + y21 + y31 + y41 + y51

x12 + x22 = y12 + y22 + y32 + y42 + y52

x13 + x23 = y13 + y23 + y33 + y43 + y53

y11 + y12 + y13 ≤ 35

y21 + y22 + y23 ≤ 50

y31 + y32 + y33 ≤ 40

y41 + y42 + y43 ≤ 30

y51 + y52 + y53 ≤ 45

xij, yjk ≥ 0

Solving this linear programming problem using a suitable solver will provide us with the optimal values of xij and yjk, which will help us in determining the minimum cost required for shipping the boots while satisfying all the constraints.

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