someone help me with number 5 please

Answer:

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Step-by-step explanation:

Answer:

2nd, 3rd, and 6th option are correct

Step-by-step explanation:

using a²+b²=c² those are the obly that meet the criteria (im pretty sure)

In the given triangle equations AC² = AB² + BC², AB² = AD² + BD² and BC² = CD² + BD² are true.

A right-angled triangle is a triangle, that has one of its interior angles equal to 90 degrees or any angle is a right angle.

Given that,

ABC is a right angle triangle.

And BD is perpendicular to AC.

To show the equations which are true,

Use Pythagorean theorem,

(Hypotenuse)² = (base)² + (height)²

In triangle ABC,

AC² = AB² + BC²

In triangle ABD,

(AB)² = AD² + BD²

And in triangle BCD,

BC² = CD² + BD²

Therefore, option (2), (3) and (6) are correct.

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Answer:

He walked 5 small dogs and 3 large dogs.

Step-by-step explanation:

We'll represent the number of small dogs Ryan walked 'x,' and the number of large dogs Ryan walked '8-x.'

49 = 5x + 8(8-x)

x=5

8-5=3

Therefore, Ryan walked 5 small dogs and 3 large dogs.

I hope this helps! ^-^

Answer:

1.6f + 0.4j - 13

Step-by-step explanation:

Answer:

1.6f+0.4j-13

Step-by-step explanation:

-1.3f + 0.4j - 12 - 1 + 2.9f

Combine like terms

-1.3f+2.9f     +0.4j    -12-1

1.6f+0.4j-13

Answer:

\(4^8\)

Step-by-step explanation:

Formula: \((a^b)^c = a^{bc}\)

Solve:

-Chetan K

Answer:

A = 2, B = 6, C = 5

A = -2, B = 6, C =5

A = 2, B = -6, C = -5

Step-by-step explanation:

The total length of craft wire used by Samantha is 10x + 9

What is the scale factor?

A scale factor is defined as the ratio between the scale of a given original object and a new object, which is its representation but of a different size (bigger or smaller).

Let's call the length of the smaller quadrilateral's 6-centimeter side "x".

Then the length of the corresponding side in the larger quadrilateral would be 6+3=9 centimeters, since the scale factor is 3.

To find the total length of craft wire used, we need to add up the lengths of all the sides in both quadrilaterals.

The smaller quadrilateral has four sides, each with a length of x.

The larger quadrilateral also has four sides, but only one of them has a different length (9 cm), while the other three sides are simply 3 times longer than the corresponding sides in the smaller quadrilateral.

So the total length of craft wire used by Samantha is:

4x + 9 + 3x + 3x + 3x

Simplifying this expression, we get:

10x + 9

Hence,  the total length of craft wire used by Samantha is:

10x + 9

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The probability of the event given the odds 3:1 is 3/4 or 0.75, and the probability expressed as a simplified fraction against is 1/4.

To find the probability of the event given the odds and express the answer as a simplified fraction against, we need to first understand what odds are in probability. What are odds in probability? Odds are used in probability to measure the likelihood of an event occurring.

They are defined as the ratio of the probability of the event occurring to the probability of it not occurring. Odds are typically written in the form of a:b or a to b.

What is probability? Probability is the measure of the likelihood of an event occurring. It is expressed as a number between 0 and 1. An event with a probability of 0 will never occur, while an event with a probability of 1 is certain to occur.

What is the probability of an event given the odds?To find the probability of an event given the odds,

we can use the following formula: Probability of an event = Odds in favor of the event / (Odds in favor of the event + Odds against the event)

For example, if the odds in favor of an event are 3:1, this means that the probability of the event occurring is 3 / (3 + 1) = 3/4.

To express this probability as a simplified fraction against, we can subtract it from 1.1 - 3/4 = 1/4

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Answer:

P(-5) = 109

Step-by-step explanation:

     If the polynomial p(x) is divided by the linear polynomial (x-a), the remainder is p(a).

   Dividend = divisor * quotient + remainder.

   p(x) = (x-a) * q(x) + p(a)

Here, q(x) is the quotient and p(a) is the remainder.

      P(x) = 4x² - x + 4

     P(-5) = 4*(-5)² - 1*(-5) + 4

              = 4*25 + 5 + 4

              = 100 + 5 + 4

              = 109

Given table shows the counts of respondents of a survey that asked 1000 adults about their employment status and whether they owned stocks:

Employment Status Owning Stocks Not Owning Stocks Employed 400 300

Unemployed 50 250 Retired 150 100We have to complete the following parts:

a) How many of the respondents are unemployed or do not own any stocks?

b) If a respondent is chosen at random, what is the probability that the respondent owns stocks?

c) If a respondent is chosen at random, what is the probability that the respondent is retired and does not own stocks?d) If a respondent is chosen at random, what is the probability that the respondent is employed or retired?

e) If a respondent is chosen at random, what is the probability that the respondent is employed, given that the respondent does not own stocks?

Solution:

a) The total number of respondents who are unemployed or do not own any stocks is 50 + 250 + 100 = 400.

b) Probability that a respondent owns stocks = Number of respondents owning stocks / Total number of respondents= (400 + 50 + 150) / 1000= 0.6

c) Probability that a respondent is retired and does not own stocks= Number of retired respondents not owning stocks / Total number of respondents= 100 / 1000= 0.1

d) Probability that a respondent is employed or retired= (Number of employed respondents / Total number of respondents) + (Number of retired respondents / Total number of respondents)= (400 / 1000) + (150 / 1000)= 0.55

e) Probability that a respondent is employed, given that the respondent does not own stocks= (Number of employed respondents not owning stocks / Total number of respondents not owning stocks)= 300 / 350= 0.86

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The number of trading cards of international players that Elias has will be 240.

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates for one hundred percent. It is symbolized by the character '%'.

Elias has an assortment of 1,200 baseball exchanging cards. Of these cards, 35% are from the American Association, 45% are from the Public Association, and the rest are worldwide players.

Let n be the number of trading cards of international players. Then the equation is given as,

n + 1200 x 0.45 + 1200 x 0.35 = 1200

Simplify the equation, then we have

n + 540 + 420 = 1200

n + 960 = 1200

n = 1200 - 960

n = 240

The number of trading cards of international players that Elias has will be 240.

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Answer:

A)

Step-by-step explanation:

18  - 15÷ 3 = 18 - 5

Answer:

A!

Step-by-step explanation:

This one is easy peasy using PEMDAS.

1)18-15dividedby3

2)18-(15divided by 3)

3) 18-5

TA DA

Answer:

48%

Explanation:

The percent of the decrease can be calculated as:

So, replacing the initial value with 150 calories and the final value by 78 calories, we get:

Therefore, the percent of decrease is 48%

Theoretical probability of getting odd no

Now

Experimental probability

P(E)=6/10=3/5

So

Compare both

Experimental probability is greater than. theoretical probability

Answer:

Part (a) = 0.5, Part (b) = 0.6, Part (c) = less than

Step-by-step explanation:

Step 1:  Determine the theoretical probability

The theoretical probability is found by taking the amount of times our wanted solution is in the options out of the total options.  In this case, we have a spinner with labels of 1-8 so the odd numbers would be {1, 3, 5, 7}.  The total possibilities is 8 so that means we do 4/8.  This gives us 0.5 or 50% probability.

Step 2:  Determine the experimental probability

The theoretical probability is found by taking the amount of times we get our wanted solution out of the total times we spun.  In this case, we spun 10 times and we got the following odd numbers, {1, 7, 5, 3, 1, 5}.  So we take the number of times that we got an odd number and divide it by the total times we spun.  So we do 6/10 which gives us 0.6 or 60% probability.

Step 3:  Determine which is greater

Therefore, the theoretical probability (0.5) of spinning an odd number is less than the experimental probability (0.6) of spinning an odd number.

Answer:  Part (a) = 0.5, Part (b) = 0.6, Part (c) = less than

Answer:

1 banana = 0.25

Step-by-step explanation:

Find the proportion. Simply divide the cost from the amount of bananas given:

0.50/2  = 0.25

1.00/4 = 0.25

1.50/6 = 0.25

$0.25 is the cost per banana, and is your proportion.

~

Answer:

1 banana = + $0.25

2 bananas = + $0.50

Step-by-step explanation:

If it is increasing %0.50 for every 2 bananas then that also means it's increasing $0.25 for every 1 banana.

The statement "A sampling distribution is normal if either n≥30 or the population is normal" is true.

Hence option C is correct.

It is ideal for the population to be normal, a larger sample size (n≥30) can also result in a normal sampling distribution due to the Central Limit Theorem.

Therefore, a normal sampling distribution is not never possible as stated in option B, and it's not solely dependent on the population being normal as stated in option A.

Option D, stating that a normal sampling distribution is only possible if n≥30 is also not entirely true, as a normal population can still result in a normal sampling distribution for smaller sample sizes.

Hence the correct statement is,

"A sampling distribution is normal if either n≥30 or the population is normal".

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Answer: -12s + -2

Step-by-step explanation: You need to combine the like terms so -3sx4s = -12s and 2+-1 = -2 so it’s -12s + -2 or -12s - 2

Answer:

-12s²+11s-2

Step-by-step explanation:

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

First you have to FOIL (First, inner, outter, last)

First: -3s × 4s

Inner: -3s × -1

Outter: 2 × 4s

Last: 2 × -1

Now you should have -12s² + 3s + 8s -2

----------------------

Next you combine your like terms

Finally you have your answer, -12s²+11s-2 .

If researchers report that the results from their study were significant, p < .05, this means that we would expect the results to occur by chance less than 5 times out of 100.

When researchers report that the results from their study were significant, p < .05, it means that we would expect the results to occur by chance less than 5 times out of 100. This threshold is commonly used in statistical hypothesis testing.

In statistical hypothesis testing, the p-value represents the probability of obtaining results as extreme as the observed results, assuming that the null hypothesis is true. If the p-value is less than the predetermined significance level of .05 (or 5%), it is considered statistically significant. This means that the observed results are unlikely to have occurred by chance alone, and there is evidence to support the alternative hypothesis.

Therefore, option D, "We would expect the results to occur by chance less than 5 times out of 100," is the correct interpretation of reporting significant results with p < .05.

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The coordinates of a' after scaling factor of 1/3 is a'(1,1).

Given:

points a (3, 3) and b (3, 6) are two vertices of rectangle abcd. the rectangle is dilated by a scale factor of 1/3.

Rectangle:

A rectangle is a type of quadrilateral, whose opposite sides are equal and parallel.

Scale factor :

A scale factor is defined as the ratio between the scale of a given original object and a new object, which is its representation but of a different size.

scale factor = 1/3

= (3*1/3 , 3*1/3)

= (3/3 , 3/3)

= (1,3/3)

= (1,3)

Therefore the coordinates of a'(1,1).

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We can conclude that for x < -7/5, f(x) is increasing, and for x > -7/5,

f(x) is decreasing.

First, we need to find the critical value of the function f(x), which is where

its derivative equals zero or does not exist.

To find the derivative of f(x), we can use the power rule and the chain

rule:

f'(x) = 3(7 + 5x)2 × 5 = 15(7 + 5x)2

Setting this equal to zero and solving for x, we get:

15(7 + 5x)2 = 0

7 + 5x = 0

x = -7/5

So the critical value of f(x) is x = -7/5.

To determine the behavior of f(x) around this critical value, we can use

the first derivative test.

For x < -7/5, f'(x) < 0, which means that f(x) is decreasing.

For x > -7/5, f'(x) > 0, which means that f(x) is increasing.

Therefore, the critical value at x = -7/5 is a local minimum.

For x < -7/5, f(x) is decreasing from positive values to the local minimum

at (-7/5, f(-7/5)).

For x > -7/5, f(x) is increasing from the local minimum at (-7/5, f(-7/5)) to

positive values.

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Responder:

3 horas

Explicação passo a passo:

Dado :

Miguel a cada 45 minutos

Nádia a cada 60 minutos

Número de horas que eles vão se ver no mesmo lugar:

Para fazer isso ;

Obtenha o menor múltiplo comum de 60 e 45

Múltiplos de:

45: 45, 90, 135, 180, 225.

60: 60, 120, 180, 240, 300.

O menor múltiplo comum de 45 e 60 é 180

° Assim, eles se verão no mesmo lugar após 180 minutos;

Número de horas = 180/60 = 3 horas

Answer:2

Step-by-step explanation:

The y-intercept for the regression equation is 3, given that b = 4, Mx = 12, and My = 51. So, the correct option is C).

The formula for the y-intercept of the regression equation is

a = My - b(Mx)

where My is the mean of the dependent variable (y), b is the slope, and Mx is the mean of the independent variable (x).

Given that b = 4, Mx = 12, and My = 51, we can substitute these values in the formula to find the y-intercept

a = 51 - 4(12)

a = 51 - 48

a = 3

Therefore, the y-intercept (a) for the regression equation is 3.

The correct Answer is C) 3.

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--The given question is incomplete, the complete question is given

" A set of X and Y scores has b = 4, Mx = 12, and My = 51. What is the y-intercept (a) for the regression equation? O 9.75 17.36 3.00 8.25 "--

Given data:

Suppose A is -1.1, and B is -0.9, the product of A and B is,

Thus, the product of A and B is more close to E, so option (E) is correct.

Based on the t-test assuming equal variances a. Examining the ratio of the variances, it is reasonable to conclude that the variances are unequal."

It is vital to establish whether or not the variances of the two groups being compared are indeed identical before performing a t-test under the assumption of equal variances. This is significant since the t-calculation statistic depends on the assumption that variances are equal.

One can look at the ratio of the variances between the two groups to evaluate the assumption of equal variances. Typically, it is acceptable to infer that the variances are not equal if the ratio of the variances is more than two or lower than half. One can presume that the variances are equal in the absence of such proof. Since the variances are not equal, it is not logical to infer that they are.

Complete and correct Question:

Based on the t-test assuming equal variances on the T-Test Equal worksheet, is it reasonable to assume that the variances are equal?
a. Examining the ratio of the variances, it is reasonable to conclude that the variances are unequal.
b. Whether the variances are equal or not is not relevant for this situation.
c. Examining the ratio of the variances, it is reasonable to conclude that the variances are equal.
d. It is impossible to determine if the variances are equal given the data we have.

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Step-by-step explanation:

so, if I understand your text correctly, we need to bring

2 - (x+2)/(x-3) - (x-6)/(x+3)

into a form

(ax + b)/(x² - 9)

what we notice immediately is

(x+3)(x-3) = x² - 9

that makes sense, as we want to transform all terms into fractions with the same denominator.

and the necessary "criss-cross" multiplication leads to (x² -9) as denominator.

so, let's transform every term to a fraction with that denominator, and then we add or subtract them all up as per the original expression.

2 :

multiply by (x²-9)/(x²-9)

2(x²-9)/(x²-9) = (2x²-18)/(x²-9)

(x+2)/(x-3) :

multiply by (x+3)/(x+3)

(x+2)(x+3)/(x²-9) = (x²+3x+2x+6)/(x²-9) =

= (x²+5x+6)/(x²-9)

(x-6)/(x+3) :

multiply by (x-3)/(x-3)

(x-6)(x-3)/(x²-9) = (x²-3x-6x+18)/(x²-9) =

= (x²-9x+18)/(x²-9)

for the whole expression we get then

(2x²-18)/(x²-9) - (x²+5x+6)/(x²-9) - (x²-9x+18)/(x²-9) =

= (2x²-x²-x² -5x+9x -18-6-18)/(x²-9) =

= ( 0 + 4x - 42 )/(x²-9)

a = 4

b = -42

In the box plot, most of the data is clustered around 75 - 78 (option A).

A box plot is used to study the distribution and level of a set of numbers. The box plot has two whiskers and a box. The two whiskers represent the minimum value and the maximum value.

The first line on the box is the lower quartile. The next line on the box represents the median. The third line on the box represents the upper quartile. Majority of the data would lie between the first quartile and the third quartile.

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Every linear function with a nonzero slope will have an inverse function.  A linear function represents a straight line on a graph, and it has the form y = mx + b, where m is the slope and b is the y-intercept.

For a linear function to have an inverse function, it must meet certain criteria. The most important requirement is that the slope (m) must be nonzero. If the slope is zero, the function will not have an inverse because it will fail the horizontal line test. In other words, the function will not pass the vertical line test, and multiple x-values will map to the same y-value, making it impossible to find a unique inverse function.

However, if the slope is nonzero, the function will pass the horizontal line test, and each x-value will correspond to a unique y-value. Therefore, a linear function with a nonzero slope will have an inverse function, allowing us to reverse the mapping and find the original x-value from a given y-value.

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Answer:

315

Step-by-step explanation:

i divided 90 by 9 to know how much she can type in one minute and timed it by 28 to know how much she can type in 28 minutes 90÷8×28 = 315