The sides of ADEF are d, e, and f. If the lengths of d = 12 and e = 19, what are the

possible lengths of f?

Answer:

21

Step-by-step explanation:

you stoopid

Answer:

9 + 10 = 37 1/2

Step-by-step explanation:

i forgor

Answer:

B. y=9.50x+6.95

Step-by-step explanation:

Y equals the total cost to deliver x amount of packages.

Regardless of the number of packages shipped, you will always be charged a minimum of $6.95

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Answer:

36 square inches.

Step-by-step explanation:

volume is given by 1 by 3, into base into height is based. His height and volume and area of the base is given by area of the ashe area of the base is given by 3 into 60 by 5. As given in the question on solving it, we get it equals to 36 square inches.

Answer:

a) t = 2.2010

b) t = 1.7291

c) t = 3.4995.

Step-by-step explanation:

a. The sample size is 12 and the level of confidence is 95%.

12 - 1 = 11 degrees of freedom, either two-tailed test at \(\alpha = 0.975\) or one-tailed test at \(\alpha = 0.95\), so t = 2.2010.

b. The sample size is 20 and the level of confidence is 90%.

20 - 1 = 19 degrees of freedom, either two-tailed test at \(\alpha = 0.95\) or one-tailed test at \(\alpha = 0.9\), so t = 1.7291.

c. The sample size is 8 and the level of confidence is 99%.

8 - 1 = 7 degrees of freedom, either two-tailed test at \(\alpha = 0.995\) or one-tailed test at \(\alpha = 0.99\), so t = 3.4995.

Answer:

Yes

Step-by-step explanation:

\(5x-3y=0 \\ \\ 3y=5x \\ \\ y=\frac{5}{3}x\).

Since the equation can be rewritten in the form y=kx, the equation represents direct variation.

9514 1404 393

Answer:

  S > 2

Step-by-step explanation:

In this context, "over" means "greater than." The problem statement tells you the weight (S) is greater than 2 kilograms:

  S > 2

Given that :-

To Find :-

Solution :-

→ Perimeter = 2( Length + breadth)

→ 26 = 2 ( Length+ 4 )

→ 26/2 = Length + 4

→ 13 = Length + 4

→ Length = 13 -4

→ Length = 9 meters.

So the Length of Lisa's garden is 9 meters .

Answer:

9

Step-by-step explanation:

Answer:

4:5:1

Step-by-step explanation:

so first of all the ratio will be 140:70:35 but after we simplify it with 35 we'll get the final simplified ratio which is 4:5:1

Answer:

The answer is "\(f_{R} (r) =\frac{5}{2r^2}; \frac{10}{12} \leq r \leq \frac{10}{8}\)"

Step-by-step explanation:

They have the distributional likelihood function of T: \(f_{\Gamma } \ (t)= \frac{1}{12-8}= \frac{1}{4}; 8 \leq t \leq 12\)

This is the following PDF of transformation \(R =\frac{10}{T}\)

They know that PDF is the Y=g(X) transformation

\(f_{y} (y)=f_{x} (g^{-1} (y))|\frac{dg^{-1} (y)}{dy}\)

Using theformula, the PDF of  \(R =\frac{10}{T}\) is

\(f_{R} (\Gamma)=f_{(\Gamma)} |\frac{d(\frac{10}{r})}{dr}| \\\\f_{R}(r) =\frac{1}{4}| -\frac{20}{r^2}|\\\\f_{R} (r) =\frac{5}{2r^2}; \frac{10}{12} \leq r \leq \frac{10}{8}\\\\\)  

Answer:

23

Step-by-step explanation:

The probability of randomly selecting a male student and female student are non-smokers is 0.6771

What is probability?

Simply put, probability measures how probable something is to occur. We can discuss the probabilities of various outcomes, or how likely they are, whenever we are unsure of how an event will turn out. Statistics is the study of events subject to probability.

Probability = (Number of possible outcomes)/(Total number of outcomes)

According to the given question:

Number of male students are smokers = 61

Number of male students are non smokers = 549

Total number of male students = 610

Number of female students are smokers = 156

Number of female students are non smokers = 444

Total number of female students = 600

Probability that both are non smokers is given by

P (non-smoker males) x P (non-smoker females)

= \(\frac{549}{610} . \frac{444}{600}\)

= 0.915 x 0.74

= 0.6771

Therefore the probability that both male and female are non-smokers is 0.6771.

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The exponential function that best represents the relationship between f(t) and t is \(f(t) =100(0.5)^t\)

From the question, we have the following parameters that can be used in our computation:

t    f(t)

0    100

1     50

2     25

From the above, we have the following

Initial value, a = 100

Rate, b = 50/100

Evaluate

b = 0.5

The function is represented as

\(f(t) =ab^t\)

So, we have

\(f(t) =100(0.5)^t\)

Hence, the exponential function that best represents the relationship between f(t) and t is \(f(t) =100(0.5)^t\)

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Answer:

thats only 25

Step-by-step explanation:

Answer:

40

Step-by-step explanation:

The LCM is forty.

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Answer:

40

Step-by-step explanation:

2/5 = 16/40

1/8 = 5/40

Answer:49

Step-by-step explanation:

Answer:

x = 6

Step-by-step explanation:

7 x 6 = 42 making the answer 6 true.

Answer:

24 minutes

Step-by-step explanation:

5x6=30

4x6=24

Answer:

Check Explanation please.

Probability = 0.25.

Step-by-step explanation:

The Important thing to note here is that we have sixteen(16) different possible outcomes for this particular problem or question.

From the question above, we are given the following information or data: ''bag contains four chips of different​ colors, including​ red, blue,​ green, and yellow. A chip is selected at random from the bag and then replaced in the bag. A second chip is then selected at random"

Hence, the sixteen (16) different possible outcomes are; RR, RB, BB, BR, RG, GR, GG, RY, YR, YY, BG, GB, BY, YB, GY, YG.

To calculate the probability we need to used the numbers of f different colors divided by the number big possible outcomes, that is; 4/16 = 0.25.

Probability that one blue chip and one yellow chip are  selected is 1/8

Given that a  bag contains four chips of different colors

The colors given are red , blue, green and yellow

A chip is selected at random from the bag and replaced in the bag

After that a second chip is selected at random.

In both the selections there is a equal probability of choosing any color chip at random

So  for the first chip the color can be either  blue , green red  or yellow.

Similarly for the second chip the color of the chosen chip can be either  blue , green , red or  yellow

We can make set of possible outcomes for the colors of chips in the first and the second draw

The number of possible outcomes are 16 in numbers

{ RR, RB, RG, RY. BR, BB, BG, BY, GR,GB, GG, GY, YR, YB, YG, YY}

Probability that one blue chip and one yellow chip are  selected is 1/8

Since there is only two such case.

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Answer:

b. -3

Step-by-step explanation:

30 - 3 = 27

27 - 3 = 24

24 - 3 = 21....

Answer:

The rainfall on Saturday was of 60 mm.

Step-by-step explanation:

Average rainfall:

The average rainfall is given by the total rainfall divided by the number of days(7). So

If the records of daily rainfall from Sunday to Friday were 45 mm, 22 mm, 28 mm, 36 mm, 30 mm and 24 mm

On Saturday it was of x mm. So

\(35 = \frac{45 + 22 + 28 + 36 + 30 + 24 + x}{7}\)

\(185 + x = 245\)

\(x = 245 - 185\)

\(x = 60\)

The rainfall on Saturday was of 60 mm.

Answer:

6(x + 4)

opening brackets

=6x+24 is the answer

Step-by-step explanation:

Triangle ADC also has a right angle at D, making it a right-angled triangle.

The exact value of x be 2.25.

The hypotenuse's square is equal to the sum of its two other side squares of a right-angled triangle, according to the Pythagoras theorem.

Triangle ADB exists even a right-angled triangle with right-angle at D.

Therefore, Base of Triangle ADB = BD = 4,

Height of Triangle ADB = AD = 3,

Hypotenuse of Triangle ADB = AB

Using the Pythagoras Theorem, we get,

\($\left[(A D)^2+(B D)^2\right]=(A B)^2$\)

substitute the values in the above equation, we get

or,\($(A B)^2=\left[(3)^2+(4)^2\right]$\)

simplifying the equation, we get

or, \($(A B)^2=[9+16]$\)

or, \($(A B)^2=25$\)

or, \($\sqrt{(A B)^2}=\sqrt{25}$\)

or, AB = 25

Triangle ADC is also a right-angled triangle with right-angle at D.

Therefore, Base of Triangle ADC = DC = x

Height of Triangle ADC = AD = 3,

And, Hypotenuse of Triangle ADC = AC

Using the Pythagoras Theorem, we get,

\(& {\left[(D C)^2+(A D)^2\right]=(A C)^2} \\\)

simplifying the equation, we get

\(& \text { or },(A C)^2=\left[(3)^2+(x)^2\right] \\\)

\(& \text { or },(A C)^2=\left[9+x^2\right]\)

Triangle ABC is also a right-angled triangle with right-angle at A. Therefore, Base of Triangle ABC = AC,

Height of Triangle ABC = AB = 5,

And, Hypotenuse of Triangle ABC =  BC = (4 + x)

Using the Pythagoras Theorem, we get,

\(& {\left[(A C)^2+(A B)^2\right]=(B C)^2} \\\)

\(& \text { or, }(B C)^2=\left[(A C)^2+(A B)^2\right] \\\)

substitute the values in the above equation, we get

\(& \text { or, }(4+x)^2=\left[\left(9+x^2\right)+(5)^2\right] \\\)

simplifying the equation, we get

\(& \text { or, }\left[4^2+(2 \times 4 \times x)+x^2\right]=\left[9+x^2+25\right] \\\)

\(& \text { or, }\left[16+8 x+x^2\right]=\left[(9+25)+x^2\right] \\\)

\(& \text { or, }\left[16+8 x+x^2\right]=\left[34+x^2\right] \\\)

\(& \text { or, }\left[16+8 x+x^2\right]-\left[34+x^2\right]=0 \\\)

\(& \text { or, },(16-34)+8 x+\left(x^2-x^2\right)=0 \\\)

8x - 18 = 0

8x = 18

\(& \text { or, } x=\frac{18}{8} \\\)

\(& \text { or, } x=\frac{9 \times 2}{4 \times 2} \\\)

\(& \text { or, } x=\frac{9}{4} \\\)

Therefore, the value of x be 2.25.

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Solution:

To find square feet, multiply the length measurement in feet by the width measurement in feet.

Hence, the standard formula to calculate square foot is;

The mean number of movies that the students saw is 13.5 (rounded to the nearest tenth).

To find the mean number of movies the students saw, you need to calculate the average of the given data. Here are the reported numbers of movies seen by the 6 students: 14, 11, 15, 19, 12, 10.

To calculate the mean, you sum up all the reported numbers and divide by the total number of students. In this case, the total number of students is 6.

So, let's calculate the mean:

(14 + 11 + 15 + 19 + 12 + 10) / 6 = 81 / 6 = 13.5

Therefore, the mean number of movies that the students saw is 13.5 (rounded to the nearest tenth).

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Using it's concept, it is found that the absolute deviation of 30 in the data set is of 2.

The absolute deviation of a measure is given by the absolute value of the differente between the measure and the mean.

The mean is the sum of all observations divided by the number of observations. In this data-set, it is given by:

M = (26 + 35 + 27 + 30 + 22)/5 = 28

30 - 28 = 2, hence, the absolute deviation of 30 in the data set is of 2.

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Answer:

The answer is 2

Step-by-step explanation:

I took the test

Two factors that need to be controlled to keep this test fair are the temperature and the sample volume.

The control variables are those variables that should be kept constant in order to avoid interfering with the free flow of the experiment.

For the provided test, it is important that the temperature of the environment where the test sample is kept is controlled throughout the duration of the experiment so that some results are not affected by this. Also, the sample volume should be controlled for fair outcomes.

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first off, the "elapsed time" unit and the "rate" unit must correspond, in this case the decay rate is 4% per second, whilst the elapsed time is in minutes, so let's change that to seconds, hmmmm there are 60 seconds in 1 minute so in 0.8 minute there are 0.8*60 = 48 seconds.

\(\qquad \textit{Amount for Exponential Decay} \\\\ A=P(1 - r)^t\qquad \begin{cases} A=\textit{current amount}\\ P=\textit{initial amount}\dotfill &920\\ r=rate\to 4\%\to \frac{4}{100}\dotfill &0.04\\ t=\textit{elapsed time}\dotfill &48\\ \end{cases} \\\\\\ A=920(1-0.04)^{48}\implies A=920(0.96)^{48}\implies A\approx 129.66\)

Answer:

134.88

Step-by-step explanation:

Write function:

f(t)=920e r/t(exponent)

R: decays 4% > -0.04

substitute r in the function for -0.04

0.8 minutes = 48 seconds

plug In t=48

F(48)= 920e -0.04(48) <(exponents)

=134.878405159922

round to 134.88 and that’s the answer.

Width  is  19 inches

Explanation

Perimeter(p) = 26 inches

Length(l) = 7 inches

Find Width(w)

Plan: Use p = 2l + 2w to get an equation to be solved

26 = 2(31) + 2w =>26 = 62 + 2w

Now subtract 62 from both sides of the equation

54 = 2w Now divide both sides of the equation by 2

w = 19 inches

Double Check: 26 = 2(31) + 2(27) = 62 + 54 = 26 True Reasonable/Recalculated

Answer: Width(w) = 19 inches

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Answer:  infinitley many solutions

Step-by-step explanation:

Answer:

Length= 44 feet

Width= 18 feet

Step-by-step explanation:

Let the length= x

Let the width = y

Length is 8 feet longer than 2 times the

width.

X= 8+2y

The perimeter of his classroom floor is 124 feet

Perimeter= 2(x+y)

124= 2x+2y

But x= 8+2y

124= 2x+2y

124= 2(8+2y) +2y

124= 16 +4y +2y

124-16= 6y

108= 6y

18 = y

Width= 18 feet

X= 8+2y

X= 8 +2(18)

X= 8+36

X= 44

Length= 44 feet