Carries friend lives two miles from her house. If it took her 18 8/9 minutes to run to her friends house, then 19 7/12 minutes to run back to her house, what is the total time she spent running? Please give step by step explanation

Answer:

\((-\infty,2)\)

Step-by-step explanation:

Since \(-3x+6\nless 0\), then \(x\ngtr 2\), therefore, the domain of the function is \((-\infty,2)\).

In a case whereby a number has the same digits in its hundreds place and it’s hundredths place the number of times that the value is greater in the hundreds place than the value of the digit in the hundreds place is 10,000 times.

The question can be interpreted that the particular number has the same digit  which is seen in hundreds place  hence  hundredths place.

we can then represent the digit  as '1'.

The value of number's hundreds place can be represented as  100

we can as well represent the number's hundredths place as 0.01

the number of times the value of the hundreds place digit exceeds the value of the hundredths place digit can be expressed as 100/0.01 =(100*100)/1 = 10, 000

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missing options:

A. 100,00

B. 100

C. 1,000

D. 10,000

The area of the ellipse in terms of a and b is given by the integral \(\int\limits^a_b {ba2-x2dx.} \,\)

The upper half of the ellipse centered at the origin with axes of length 2a and 2b is described by, ba2-x2dx. as shown in the figure. To find the area of the ellipse in terms of a and b, an integral can be set up. The integral is given by\(\int\limits^a_b {ba2-x2dx.} \, dx\) This integral can be evaluated to determine the area of the ellipse in terms of a and b.

The integral is given by:

\(\int\limits^a_b {ba2-x2dx.} \, dx\)

This can be evaluated using a substitution of u = a2 - x2. The derivative of u is du = -2x dx. After making the substitution, the integral becomes:

-∫bu du

The integral can be evaluated to obtain the answer:

-bu2/2 + C

The area of the ellipse can then be determined by evaluating the integral from x = 0 to x = a. This gives the area of the ellipse in terms of a and b:

\(Area = ab\pi /2\)

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Answer:

\(1. \: 3i\)

2. option D

3. option C

4. option D

5. option C

6. option B

7. option C

8. option D

9. option C

10. option C

Step-by-step explanation:

\( \sqrt{ - 1(9)} \)

\( \sqrt{ - 1} \times \sqrt{ 9} \)

\(i \times \sqrt{9} \)

\(i \times \sqrt{ {3}^{2} } \)

\(i \times 3\)

\(3i\)

\( \sqrt{ - 1(8)} \)

\( \sqrt{ - 1} \times \sqrt{8} \)

\(i \times \sqrt{8} \)

\(i \times \sqrt{ {2}^{2} \times 2 } \)

\(2i \sqrt{2} \)

\( \sqrt{ - 1} \times \sqrt{80} \)

\(i \times \sqrt{80} \)

\(4i \: \sqrt{5} \)

\( \sqrt{ - 1} \times \sqrt{75} \)

\(i \times \sqrt{75} \)

\(i \times \sqrt{ {5}^{2} \times 3 } \)

\(5i \sqrt{3} \)

\( \sqrt{ - 1} \times \sqrt{72} \)

\(i \times \sqrt{72} \)

\(i \times ( {6}^{2} \times 2)\)

\(6i \sqrt{2} \)

\( \sqrt{ - 1} \times \sqrt{20} \)

\(i \times \sqrt{20} \)

\(i \times \sqrt{ {2}^{2} \times 5} \)

\(2i \sqrt{5} \)

\( \sqrt{ - 1} \times \sqrt{27} \)

\(i \times \sqrt{27} \)

\(i \times \sqrt{ {3}^{2} \times 3} \)

\(3i \sqrt{3} \)

\( \sqrt{ - 1 \times 12} \)

\(i \times \sqrt{12} \)

\(i \times \sqrt{4(3)} \)

\(2i \sqrt{3} \)

\( \sqrt{ - 1} \times \sqrt{125} \)

\(i \times \sqrt{ {5}^{2} \times 5 } \)

\(5i \sqrt{5} \)

\( \sqrt{ - 1} \times \sqrt{180} \)

\(i \times \sqrt{ {6}^{2} \times 5 } \)

\(6i \sqrt{5} \)

The ranking from the lowest to highest APR for the given companies is A, B, D, C.

The correct option is b.

To rank the companies from the lowest to highest Annual Percentage Rate (APR) based on a $600 loan amount, we need to calculate the APR for each company. The formula to calculate APR is APR = (Fees / Loan Amount) * (365 / Terms of Loan).

Let's calculate the APR for each company:

For Company A:

APR_A = ($60 / $600) x (365 / 18) = 0.1 x 20.28 = 2.028%

For Company B:

APR_B = ($80 / $600) x (365 / 12) = 0.1333 x 30.42 = 4.054%

For Company C:

APR_C = ($90 / $600) x (365 / 10) = 0.15 x 36.5 = 5.475%

For Company D:

APR_D = ($110 / $600) x (365 / 14) = 0.1833 x 26.07 = 4.79%

Now, we can rank the companies from the lowest to highest APR:

Company A - APR: 2.028%

Company B - APR: 4.054%

Company D - APR: 4.79%

Company C - APR: 5.475%

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Answer:

7,200

Step-by-step explanation:

Answer:

19 6/8 or 19 3/4

I’m not sure if you want the smallest possible fraction or not. If you don’t know just put the second one. K.

The probability that an MP3 player manufactured in Fort Meyers is defective is 0.37%.

To calculate the probability that an MP3 player is defective, we need to consider the manufacturing plants and their respective defect rates.

Given:

Plant at Memphis manufactures 50% of the MP3 players, and 1% of those manufactured at that plant are defective.

Plant at Fort Meyers manufactures 20% of the MP3 players, and 3% of those manufactured at that plant are defective.

No information is provided about the defect rate of the third plant.

To find the overall probability of an MP3 player being defective, we need to consider the probability of selecting a defective player from each plant and then weigh it by the probability of selecting a player from each plant.

Let's calculate the overall probability:

Probability of selecting a defective player from Memphis plant = 50% * 1% = 0.50% or 0.005 (since 50% is equivalent to 0.50 in decimal form)

Probability of selecting a defective player from Fort Meyers plant = 20% * 3% = 0.60% or 0.006 (since 20% is equivalent to 0.20 in decimal form)

To calculate the overall probability, we need to weigh these probabilities by the probability of selecting an MP3 player from each plant:

Probability of selecting from Memphis plant = 50% = 0.50 (decimal form)

Probability of selecting from Fort Meyers plant = 20% = 0.20 (decimal form)

Overall probability of selecting a defective MP3 player is given by:

Overall probability = (Probability from Memphis plant * Probability of selecting a defective player from Memphis) + (Probability from Fort Meyers plant * Probability of selecting a defective player from Fort Meyers)

Overall probability = (0.50 * 0.005) + (0.20 * 0.006) = 0.0025 + 0.0012 = 0.0037 or 0.37%

Therefore, the probability that an MP3 player, manufactured in Fort Meyers, is defective is 0.37%.

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Answer:

yes

Step-by-step explanation:

Answer:

YES IT IS!!

Step-by-step explanation:

!!

On solving the provided question, we can say that Probability(A and B) = P(A)P(B|A) and P(E or F) = P(E) + P(F) - P(E and F)

Probability theory, a subfield of mathematics, gauges the likelihood of an occurrence or a claim being true. An event's probability is a number between 0 and 1, where approximately 0 indicates how unlikely the event is to occur and 1 indicates certainty. A probability is a numerical representation of the likelihood or likelihood that a particular event will occur. Alternative ways to express probabilities are as percentages from 0% to 100% or from 0 to 1. the percentage of occurrences in a complete set of equally likely possibilities that result in a certain occurrence compared to the total number of outcomes.

Probability(A and B) = P(A)P(B|A).

P(A and B) = P(B and A), this may also be written as P(A and B) = P(B)P(A|B).

Using the general multiplication rule, we have

P(E and F) = P(E)P(F|E)

.392 = P(E)(.7)

P(E) = .56

   P(E and F) = P(F)P(E|F)

.392 = P(F)(.56), so

P(F) = .7

P(E or F) = P(E) + P(F) - P(E and F)

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Answer:

rise/run= -20/5= -4/1=-4 slope

or you sound use the slope formula (y2-y1)/(x2-x1)

(-9-11)/(1+4)

-20/5

-4

Step-by-step explanation:

Answer:

a) Null hypothesis: the drug is equally effective for men and women (company's claim)

Alternative hypothesis: the drug effectiveness significantly differs for men and women.

\(H_0: \pi_1-\pi_2=0\\\\H_a:\pi_1-\pi_2\neq 0\)

b) If the P-value is smaller than the significance level, the null hypothesis is rejected. If not, the null hypothesis failed to be rejected.

c) In the explanation.

d) As the P-value (0.0342) is smaller than the significance level (0.05), the effect is significant.

The null hypothesis is rejected.

There is enough evidence to support the claim that the drug effectiveness significantly differs for men and women.

The company's claim is rejected.

Step-by-step explanation:

This is a hypothesis test for the difference between proportions.

The claim of the company, will be stated in the null hypothesis. We will test if there is evidence against that claim to reject it or not.

Then, the test claim is that the drug effectiveness significantly differs for men and women.

The null and alternative hypothesis are:

\(H_0: \pi_1-\pi_2=0\\\\H_a:\pi_1-\pi_2\neq 0\)

The significance level is 0.05.

The sample 1 (women), of size n1=100 has a proportion of p1=0.38.

The sample 2 (men), of size n2=200 has a proportion of p2=0.51.

The difference between proportions is (p1-p2)=-0.13.

\(p_d=p_1-p_2=0.38-0.51=-0.13\)

The pooled proportion, needed to calculate the standard error, is:

\(p=\dfrac{X_1+X_2}{n_1+n_2}=\dfrac{38+102}{100+200}=\dfrac{140}{300}=0.467\)

The estimated standard error of the difference between means is computed using the formula:

\(s_{p1-p2}=\sqrt{\dfrac{p(1-p)}{n_1}+\dfrac{p(1-p)}{n_2}}=\sqrt{\dfrac{0.467*0.533}{100}+\dfrac{0.467*0.533}{200}}\\\\\\s_{p1-p2}=\sqrt{0.002489+0.001244}=\sqrt{0.003733}=0.061\)

Then, we can calculate the z-statistic as:

\(z=\dfrac{p_d-(\pi_1-\pi_2)}{s_{p1-p2}}=\dfrac{-0.13-0}{0.061}=\dfrac{-0.13}{0.061}=-2.1276\)

This test is a two-tailed test, so the P-value for this test is calculated as (using a z-table):

\(P-value=2\cdot P(z<-2.1276)=0.0342\)

As the P-value (0.0342) is smaller than the significance level (0.05), the effect is significant.

The null hypothesis is rejected.

There is enough evidence to support the claim that the drug effectiveness significantly differs for men and women.

Answer:

210

Step-by-step explanation:

LCM of 42sec and 30 sec=210 sec

Answer: 9 7/20

Step-by-step explanation:

7 4/5 + 2 3/4

Multiply the Denominators = 20

Add Numerators = 7

Add Whole Numbers = 9

Answer 9 7/20

Answer: Half of them are even and half of them are odd.

Step-by-step explanation:

The even numbers are 6, 12, 18, 24, and 30. An even number is defined as a number that is divisible by 2, meaning it has no remainder when divided by 2. For example, 6 divided by 2 equals 3 with no remainder, so 6 is even.

The odd numbers are 3, 9, 15, 21, and 27. An odd number is defined as a number that is not divisible by 2, meaning it has a remainder of 1 when divided by 2. For example, 9 divided by 2 equals 4 with a remainder of 1, so 9 is odd.

Therefore, out of the given numbers, half of them are even and half of them are odd.

________________________________________________________

Answer:

x=-1

Step-by-step explanation:

thank me later it correct did the workhope this works

The function f(x) = -4(x+2)² - 12 can be rewritten in the form

f(x) = -4x² - 16x - 28.

The concept used in this problem is expanding and simplifying an algebraic expression. We are given a quadratic function in a different form, and we need to rewrite it in standard form, which is in the form of f(x) = ax² + bx + c.

This involves expanding and simplifying the squared term and combining like terms. The process of expanding and simplifying an algebraic expression is a fundamental concept in algebra.

Here we have

f(x)= -4(x+2)²- 12      

To rewrite the function f(x) = -4(x+2)² - 12 in form f(x) = ax² + bx + c

Expand the squared term and simplify the expression.

The steps are as follows:

f(x) = -4(x+2)² - 12 (original function)

f(x) = -4(x² + 4x + 4) - 12 (expand the squared term)

f(x) = -4x² - 16x - 16 - 12 (distribute the -4)

f(x) = -4x² - 16x - 28 (combine like terms)

Therefore,

The function f(x) = -4(x+2)² - 12 can be rewritten in the form

f(x) = -4x² - 16x - 28.

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Answer:

125 red apples

Step-by-step explanation: 3x25=75 and 5X25=125

Please mark brainliest

The miles that Jordan run after 6 days will be 5 1/4 miles.

This relates to a fraction. A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers.

Here, Jordan runs to the end of his street and back home every day and the total distance of a trip to the end of the street and back home is 7/8 mile.

The miles that Jordan run after 6 days will be:

= 7/8 × 6

= 42 / 8

= 5 1/4 miles.

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She can purchase 3 blue towels and 5 green towels.

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units. what kinds of values and units

Let's say you go to the store to buy six apples.

You are informed by the shopkeeper that he is offering 10 apples for Rs 100. In this instance, the value and the units are the price of the apples. Recognizing the units and values is crucial when using the unitary technique to a problem.

Always write the items that need to be computed on the right side and the things that are known on the left side to simplify things.

We are aware of the quantity of apples and the amount of money in the aforesaid problem.

According to our question-

8 x 5 = 40

10 x 3 = 30

40 + 30 = 70

Hence, She can purchase 3 blue towels and 5 green towels.

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A. Bar chart and D. Histogram are appropriate data displays for highlighting the mean and range in the given data.

A bar chart, also known as a bar graph, is a visual representation of data using rectangular bars. It is commonly used to compare different categories or groups of data by showing the value of each category as a bar with a length proportional to its value. The bars can be arranged horizontally or vertically, and the length or height of each bar represents the magnitude of the data it represents.

A bar chart can be used to show the frequency of each value in the data set, and the height of each bar can represent the frequency or the proportion of the information inside a specific range. This can help to highlight the range of the data.

A histogram is a type of bar chart that displays the frequency or proportion of data that falls within each of several intervals, or bins. This can help to highlight the shape of the data distribution and the location of the mean.

Line plot, stem-and-leaf plot, and circle graph are not as suitable for highlighting the mean and range of the given data. A line plot is better for showing the individual data points, while a stem-and-leaf plot is better for showing the distribution of the data. A circle graph, or pie chart, is better for displaying proportions or percentages of a whole, and is not appropriate for displaying numerical data with a range.

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Answer:

x = (v - u) / a

Step-by-step explanation:

v = u + ax.

subtract u from both sides:

v - u = ax.

divide both sides by a:

(v - u) / a = x.

so x = (v - u) / a.

this can also be written v/a - u/a

Answer:

The Pearson coefficient of skewness is of 0.8284.

Step-by-step explanation:

Pearson skewness:

The skewness of a data set is given by the subtraction of the mean by the median, divided by the standard deviation.

In this question:

The mean is of 87, the median is of 73 and the standard deviation is of 16.9. So

(87-73)/16.9 = 0.8284.

The Pearson coefficient of skewness is of 0.8284.

Answer:Exact Form: one over 9  

1

9

Step-by-step explanation: ,..

Answer: 0

Step-by-step explanation:

2(7−8.5)2−3(|3.5−5|)

=2(−1.5)2−3(|3.5−5|)

=(2)(2.25)−3(|3.5−5|)

=4.5−3(|3.5−5|)

=4.5−3(|−1.5|)

=4.5−(3)(1.5)

=4.5−4.5

=0

SOLUTIONS

which of the following is equivalent to the radical expression below

Simplf the expression by factorising the common out

Therefore the correct answer =

Opr

Answer:

each balloon costs 1$ and each banner costs 3$

Step-by-step explanation:

The costs of each balloon and banner are $1 and $3 respectively.

A set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought.

Given that, you buy 1 balloon and 1 banner for $4. your friend buys 3 balloons and 2 banners for $9.

Let x represents balloons and y represents banners.

Establishing the equations,

x+y = 4

x = 4 - y......(i)

3x + 2y = 9...(ii)

Put eq(i) in eq(ii)

3(4 - y) + 2y = 9

12 - 3y + 2y = 9

y = 3

Put y = 3 in eq(i)

x = 4-3

x = 1

Hence, the costs of each balloon and banner are $1 and $3 respectively.

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Answer:

C. Check the intersecting lines with the corner of a piece of paper to ensure the lines create 90° angles. Took the test just now and got it right

Step-by-step explanation:

\(~~~~~~~~~~~~\textit{distance between 2 points} \\\\ P(\stackrel{x_1}{1}~,~\stackrel{y_1}{-1})\qquad N(\stackrel{x_2}{5}~,~\stackrel{y_2}{-8})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ PN=\sqrt{(~~5 - 1~~)^2 + (~~-8 - (-1)~~)^2} \implies PN=\sqrt{(5 -1)^2 + (-8 +1)^2} \\\\\\ PN=\sqrt{( 4 )^2 + ( -7 )^2} \implies PN=\sqrt{ 16 + 49 } \implies PN=\sqrt{ 65 }\implies PN\approx 8.06\)