Debbie can run 7/ 8 of a mile in 1 /8 of an hour. How many miles can she run in one hour?

Answer:C, B, A, D

Step-by-step explanation:

Answer:

C, B, A, D

Step-by-step explanation:

A -- (8/3) = 2.666666667

B -- (-√8) = -2.828427125

C -- (-3) = -3

D -- (√9) = 3

Ans: (-3), (-√8), (8/3), (√9)

**Hope this helps!

The given procedure results as not binomial and cannot be treated as binomial. It is not binomial because the probability of success does not remain the same in all trials. The correct answer is option B.

Binomial distribution compiles the number of trials, or observations when each trial has the same probability of attaining one particular value. Binomial distribution controls the probability of observing a specified number of successful outcomes in a specified number of trials.

In a binomial distribution, the probability of getting a success have to remain the same for the trials we are investigating. For example, when tossing a coin, the probability of flipping a coin is half or 0.5 for every trial we conduct, because there are only two possible outcomes.

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Answer:

50

Step-by-step explanation:

(6+√-64)(3-√-16)

6(3-√-16) +√-64(3-√-16)

18 - 6√-16 + 3√-64 - √1024

18 - 6(4i) + 3(8i) - 32i²

i² = -1

18 - 24i + 24i - (-1) 32

18 + 24i - 24i + 32

18 + 32 = 50

I hope this helps!

Determine 20% of the initial level

20% → 0.2

Write the equation with half-life of 12 hours and initial dose of 25 mg.

Substitute y = 5, and solve for t

Get the natural logarithm of both sides

Rounding the answer to the nearest whole number, the time it takes for the initial dose to be reach 20% of its initial level is 28 hours.

Add like terms:

subtract 2x from both sides:

Add 10 to both sides:

Divide both sides by 2:

The appropriate compatible numbers to use to estimate would be 20(1/2)

estimated product is 10, took the quiz :)

Answer: 20 1/2

10

Step-by-step explanation:

Answer:

the solution to the system of equations is (x, y) = (3, -2).

Step-by-step explanation:

y = -2x + 4 (Equation 1)

y = x - 5 (Equation 2)

To solve for x, we can equate the right sides of the equations:

-2x + 4 = x - 5

Now, we can solve for x:

-2x - x = -5 - 4

-3x = -9

x = (-9) / (-3)

x = 3

Substituting the value of x back into Equation 2, we can solve for y:

y = 3 - 5

y = -2

Answer:

D(30,60)

Step-by-step explanation:

It was way outside the other points that are around the line.

The point (30,60) is a high leverage point on the regression plot.

High leverage points are those that are extreme but follow the regression equation's trend.

High leverage points are distinct from outliers, which deviate from the graph's or plot's pattern or trend.

Looking closely at the regression plot, the coordinate (30,60) follows the trend of the plot, however, it is farther from the majority of the points on the graph.

Hence, the point (30,60) is a high leverage point on the regression plot.

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SOLUTION

We are given the expression

To do this, we say

Therefore the possible values of k are -47, 47, -22, 22, -13, 13, -8, 8, -2 and 2

Answer:

median value = 73 years

Step-by-step explanation:

The median age of the uninsured senior citizens can be determined by determining the middle position of the row of data given

median = [( n + 1 ) / 2 ] ^th

n = 25

median = (25 + 1 ) / 2 = 26 / 2 = 13

This means that the median value is located in the 13th position

The number in the 13th position = 73 years

Answer:

Interquartile range

Step-by-step explanation:

The interquartile range gives the middle half of a dataset. It is obtained by subtractionng the value of the lower quartile (Q1) from the value of the upper quartile(3rd quartile).

Interquartile range (IQR) = Q3 - Q1

WHERE ;

Q3 = 3/4 * (n+1)th term and the first quartile (Q1) is given as ;

Q1 = 1/4 * (n+1)th term

n = size of data Given.

Answer:

y = -2x + 7

Step-by-step explanation:

y = -2x + 4

Slope in above equation is -2. Parallel lines share the same slope so the new equation will also have a slope of -2.

y-intercept through point (3, 1):

y = mx + b

1 = -2(3) + b

1 = -6 + b

b = 7

Equation of line that is parallel to original:

y = mx + b

y = -2x + 7

La variable x asociada al sistema geométrico con dos ángulos alternos externos es igual a 23.

En esta pregunta tenemos un sistema geométrico conformado por dos líneas paralelas atravesadas por una tercera línea. Este conjunto incluye dos ángulos alternos externos, que guardan la siguiente relación según la geometría euclídea:

6 · x - 28 = 4 · x + 18

A continuación, despejamos la variable x:

6 · x - 4 · x = 28 + 18

2 · x = 46

x = 23

El valor de la variable x es 23.

No existen preguntas en español sobre ángulos alternos externos, por lo que se añade una pregunta en inglés.

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Answer:

min: 56

lower quartile: 70

median: 74

upper quartile: 80

max: 86

Answer:

Step-by-step explanation:

5 minutes is the outlier. It sticks out from the rest.

Answer:

If the set of all irrational numbers were countable, then R would be the union of two countable sets, hence countable. Thus the set of all irrational numbers is uncountable

Answer:

30, 150, 120, and 60 degrees

Step-by-step explanation:

Since the sum of the interior angles in a quadrilateral is 360 degrees:

y+5y+4y+2y=360

12y=360

y=30

2y=60, 4y=120, 5y=150

Hope this helps!

Step-by-step explanation:

y+5y+ 4y + 2y=360°(sum of a Quadrilateral)

12y=360°

divide both sides by 12

y=30°

5y=(5×30)=150°

4y=(4×30)=120°

2y=(2×30)=60°

The correct options that could be constructed by Brian using his straightedge to draw some chords of circle C are:

Equilateral triangle MNQ inscribed in circle C

Regular hexagon AMNBPQ inscribed in circle C

Brian is constructing figures inscribed in circle C.

Equilateral triangle MNQ inscribed in circle C:

This option is possible since the points M, N, and Q are labeled and they lie on circle C.

Equilateral triangle ANP inscribed in circle C:

This option is not possible. The points A and P are labeled, but the third vertex of the equilateral triangle is not specified.

Regular hexagon AMNBPQ inscribed in circle C:

This option is possible since the points A, M, N, B, P, and Q are labeled and they lie on circle C.

Square MNPQ inscribed in circle C:

This option is not possible based on the given information. The label points do not form a square.

Square ANBQ inscribed in circle C:

This option is not possible . The points A, N, B, and Q are labeled, but they do not form a square.

The correct options that could be constructed by Brian using his straightedge to draw some chords of circle C are:

Equilateral triangle MNQ inscribed in circle C

Regular hexagon AMNBPQ inscribed in circle C

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The equation associated with the quotient of twenty and a number, decreased by 4, is equal to zero is 20/x - 4 = 0 and that number will be 5.

Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.

In other words, an equation is a set of variables that are constrained through a situation or case.

Let's say that number is x,

Quotients of 20 and x will be given as 20/x

20/x - 4 = 0

20/x = 4

x = 20/4 = 5

Hence"The equation associated with the quotient of twenty and a number, decreased by 4, is equal to zero is 20/x - 4 = 0 and that number will be 5".

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Answer:

\(\frac{20}{49\pi }\) when the pile is at 14ft

Step-by-step explanation:

To get your height in inches alone from the way it's usually presented (e.g. 5' 7"), multiply the total number of feet by 12 and then add the remainder. For example, a 5' 7" person is (5 × 12) + 7 = 67" tall. To convert inches to centimeters (in to cm), simply multiply by 2.54.

Answer:

_+

Step-by-step explanation:

-3x is a example of symbols

Step-by-step explanation:

we first of all move 20 behind the comma for it to become -20 +3 and we get -17.

then use the product =-34

sum = 3

factors then continue

Answer:

\(x= \frac{-3 - \sqrt{145} }{4} \ \ or\ \ x= \frac{-3 + \sqrt{145} }{4}\)

Step-by-step explanation:

2x² + 3x + 3 = 20​

⇔ 2x² + 3x + 3 - 20 = 0

⇔ 2x² + 3x - 17 = 0

Using the Quadratic Formula to solve a Quadratic Equation :

\(x= \frac{-b \pm \sqrt{b^{2}-4ac} }{2a}\)

In the equation 2x² + 3x - 17 = 0

a = 2  ,  b = 3  and c = -17

Then

b² - 4ac = 3² - 4×2×(-17)

           = 9 + 8 × 17    

           = 9 + 136    

           = 145

Then

b² - 4ac > 0

Then

\(x= \frac{-3 \pm \sqrt{145} }{2 \times 2}\)

Then

\(x= \frac{-3 \pm \sqrt{145} }{4}\)

Answer: it is D

Step-by-step explanation:

The equation of the perpendicular bisector of the line segment with endpoints (-7, 2) and (-1, -6) is y = (3/4)x + 1.

To find the equation of the perpendicular bisector of a line segment, we need to determine the midpoint of the line segment and the slope of the line segment. The perpendicular bisector will have a negative reciprocal slope compared to the line segment and will pass through the midpoint.

Given the endpoints (-7, 2) and (-1, -6), we can find the midpoint using the midpoint formula:

Midpoint = ((x1 + x2)/2, (y1 + y2)/2)

Midpoint = ((-7 + (-1))/2, (2 + (-6))/2)

= (-8/2, -4/2)

= (-4, -2)

The midpoint of the line segment is (-4, -2).

Next, we need to find the slope of the line segment using the slope formula:

Slope = (y2 - y1)/(x2 - x1)

Slope = (-6 - 2)/(-1 - (-7))

= (-6 - 2)/(-1 + 7)

= (-8)/(6)

= -4/3

The slope of the line segment is -4/3.

Since the perpendicular bisector has a negative reciprocal slope, the slope of the perpendicular bisector will be 3/4.

Now, we can use the midpoint (-4, -2) and the slope 3/4 in the point-slope form of a line to find the equation of the perpendicular bisector:

y - y1 = m(x - x1)

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

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

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

y = (3/4)x + 1.

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The dimensions of the another rectangle is 2 cm and 4 cm.

According to the statement

We have to find that the perimeter of another rectangle.

So, For this purpose, we know that the

The perimeter of a shape is defined as the total length of its boundary.

From the given information:

The perimeter of a pool is 150 m. the rectangle at the right is a scale drawing of the pool. The length of each square on the grid represents 1 cm. draw another scale drawing of the pool using the scale 25 m to 2 cm.

Then

From the given rectangle,

Length of the rectangle = 5 cm

Width of the rectangle = 10 cm

Ratio of length : width = 1 : 2

Perimeter of the rectangle = 2(l + b)= 150 cm

l + b = 75 -----(1)

Since, l : b = 1 : 2

l/b = 1/2

b = 2l ------(2)

From equations (1) and (2),

l + 2l = 75

3l = 75

l = 25 m

Width 'b' = 2(25) = 50 m

Now we've to draw a rectangle with a scale = 25 : 2

Therefore, multiplier factor = 25/l = 25/2

l = 2 cm

Similarly,

50/w = 25/2

w = 4 cm

Now we are able to draw a rectangle with length = 2 cm and width = 4 cm.

So, The dimensions of the another rectangle is 2 cm and 4 cm.

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Answer:

1

Step-by-step explanation:

The margin of error of this poll at the \(95\%\) confidence level is calculated to be \(0.035\).

We will use the following formula to calculate the margin of error at the \(95\%\) confidence level:

\(\[ \text{{Margin of Error}} = \text{{Critical Value}} \times \text{{Standard Error}} \]\)

The critical value for a 95% confidence level is 1.96 (approximately).

The standard error can be found out using the formula written below:

\(\[ \text{{Standard Error}} = \sqrt{\frac{{\text{{p}}(1 - \text{{p}})}}{{\text{{n}}}}} \]\)

In this formula, p is the proportion of people who like dogs (0.16) and n is the sample size (380).

As for the next step, we will substitute the values into the formulas:

\(\[ \text{{Margin of Error}} = 1.96 \times \sqrt{\frac{{0.16(1 - 0.16)}}{{380}}} \]\)

Evaluating this expression gives the margin of error at the 95% confidence level.

\(\[ \text{{Margin of Error}} = 1.96 \times \sqrt{\frac{{0.16(1 - 0.16)}}{{380}}} \approx 0.035 \]\)

Therefore, the margin of error of this poll at the 95% confidence level is approximately \(0.035\).

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