26. alarm clock life hack each of us must sometimes wake up early for something really important, such as a final exam, job interview, or an early flight. (professional golfer jim furyk was disqualified from a tournament when his cellphone lost power and he overslept.) assume that a battery- powered alarm clock has a 0.005 probability of failure, a smartphone alarm clock has a 0.052 probability of failure, and an electric alarm clock has a 0.001 probability of failure. a. what is the probability that your single battery-powered alarm clock works successfully when you need it? b. if you use a battery-powered alarm clock and a smartphone alarm clock, what is the probability that they both fail? what is the probability that both of them do not fail?

Answer:

y = (5/3)x - 4

Step-by-step explanation:

We put the equation in the form y = mx + b.

So,

9y - 15x = -36 implies that

3y - 5x = -12, dividing through by 4, and continuing we have that,

3y = 5x - 12

3y/3 = 5x/3 - 12/3, dividing through by 3, and continuing we have that,

y = (5/3)x - 4

Answer: First one is 140, second one is 70

Step-by-step explanation: They’re corresponding angles

Answer

30

Step-by-step explanation:

PEMDAS

(3x7) + 5 (20/5)

21 + 5 +4= 26+4

30

Answer: See explanation

Step-by-step explanation:

Monday

The sale price of the items was $41.40

Mrs. Bolden paid $2.48 in sales tax on her purchase.

Altogether, Mrs. Bolden paid $43.88 for the shirts and flip flops.

Tuesday

The price decreased by approximately 8%

3.44 ÷ 3.75 = 0.917

0.917 × 100 = 91.7

91.7 ≈ 92

100 - 92 = 8

8% of 3.75 is 0.3

3.75 - 0.3 = 3.45

3.45 ≈ 3.44

Wednesday

22 ¹/₂ yrs or 22 yrs if that's easier

127.5 ÷ 1500 = 0.085

0.085 × 100 = 8.5

100 - 8.5 = 91.5

4 1/4 = 4.25

91.5 ÷ 4.25 = 21.5294117647

21.5294117647 × 4.25 = 91.5

21.5294117647 ≈ 21 ¹/₂ yrs

Thursday

If she marked up the price by 40%, that means $15 is 60% the original/selling price.

60% of x = 15

0.6x = 15

Divide both sides by 0.6

x = 25

The selling price is $25

If you wanted to confirm, 0.6 × 25 = 15

Friday

3 jeans for $42 each

3 × 42 = 126

3 jeans for $126

5 shirts for $27 each

5 × 27 = 135

5 shirts for $135

126 + 135 = 261

6.5% of 261

0.065 × 261 = 16.965

16.965 to the nearest cent is 16.97

She would have to pay $16.97 for tax.

261 + 16.97 = 277.97

She won't have enough money to buy everything she wants since the total price would be over $275.

There are many possible answers for this.

One example is below.

S = the number of stations included when a person orders basic cable, write an expression for the number of stations a person has if he ordered basic cable and 7 premium channels.

We can represent this as s + 7.

The value that we don't know is the number of

stations included when a person orders basic cable.

So we can represent that as s.

Then, since the person ordered 7 premium channels, that means he

is adding an additional 7 channels to his basic cable plan.

So we can represent this as s + 7.

Answer:

a number plus 7

Step-by-step explanation:

s+7

Let s represent an unknown number

a number plus 7

A. y = \(a(1+r)^t\)an exponential function that represent the webite membership after t year:

B. 455421.123 many member will there be after 4 year

A mathematical function with the formula f (x) = an x is an exponential function. where an is a constant known as the function's base and x is a variable. The transcendental number e, or roughly 2.71828, is the exponential-function base that is most frequently seen.

When b > 0 and b 1, an exponential function has the form f(x) = bx. The base is b, and the exponent is x, just as in any exponential equation. The development of bacteria is an illustration of an exponential function. Some germs multiply by two per hour.

Given that,

members = 300000

member increased by 11%

an exponential function that represent the webite membership after t year:

y = \(a(1+r)^t\)

member will there be after 4 year:

y = \(300000 (1+0.11)^4\)

y = \(300000 (1.11)^4\)

y = 455421.123

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The number of computer chips produced in 3 months will be 2515.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the function f(x) = 5x + 2,500 models the number of computer chips produced by a manufacturing plant each month during its first year.

The number of chips will be calculated as:-

f(x) = 5x + 2,500

f(3) = 5 x 3 + 2500

f(3) = 15 + 2500

f(3) = 2515

Therefore, the number of chips will be 2515.

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Answer:

I love these kind of problems (yes I'm kidding,... lol) your answer is below,...

Step-by-step explanation:

To find the area of the whole shape lets view it as three seprate rectangles,... then we will find the area of the three seperate shapes and add the areas together,... (english scholler voice): "Quite simple really"

For "simplicitys sake" lets view the shape as a house blueprint, no house I would want to live in, but a house non-the-less,... you have the main part of the house (the largest rectangle, the 13yd x 24yd one) the hallway in the middle (the 14yd x 6yd rectangle) and finally the really ridiculous sized I-du-know,... kitchen (the 5yd x 17yd one) Sooo,... lets go,...!

First of all if you didn't follow how I got the three rectangles then it's "quite simple really!" all I did is: take the oppposite side of the very far left side (the one that says 24yd) where is says 7yd and 11yd and because we know that the 7yd + 11yd + the-part-that-we-don't-know-how-long-is, is all = to 24yd then we know that the part that is not labled (the "doorway" from the main part of the house to the hallway) has to be 6yd because 7yd + 11yd + 6yd = 24yd,... AND know we know that that side of the "hallway" is 6yd, so the "hallway" is 6yd x 14yd,... So,...

13yd x 24yd = YES!... 312yd

14yd x 6yd = RIGHT again!... 84yd

5yd x 17yd = YOU are SO LIT,... yes it's 85yd

Alright so we have 312yd and 84yd and 85yd,... all we have to do is add 'em all up and you will have the area of your houseprint,... You got it!

312yd + 84yd + 85yd = (drum roll please,...)  481yd,...

The area of you shape is 481yd,...

So glad to have worked with ye and me thinks that that hopefully helped,...

CHOW,...!

Considering the dot plot and visual inspection, it is likely that group B has a lower mean. The reason for this is because it has a higher proportion of it's measures to the left of the dot plot than group A.

The mean of a data-set is given by the sum of all observations in the data-set divided by the cardinality of the data-set, which represents the number of observations in the data-set.

The dot plot shows the number of instances that each observation appeared in the data-set, hence we use it to identify the position of the measures.

Group B has more dots at the left of the graph, meaning that the smaller measures are more common than in group A, and thus it more than likely has a lower mean.

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Answer: We may utilize the characteristics of related triangles to determine the breadth of the river.

Step-by-step explanation:

Let's write "x" for the river's breadth.

Triangle RQS has RS = 42 feet.

ST = 28 ft

SQ = RS + ST = 42 + 28 feet equals 70 feet.

Triangle TSU has TU = 68 feet.

Triangles RQS and TSU can be compared to one another since points U, S, and Q are collinear.

The following ratio can be established using the comparable triangles property:

RQ / TS equals RS / TU.

By replacing the specified numbers, we get (x / 70 ft) = (42 ft / 68 ft).

Now, we may multiply by x to find the answer:

x = (42 ft * 70 ft) / 68 ft, rounded to the nearest two decimal places, equals 43.23529411764706 ft.

As a result, the river is roughly 43.24 feet wide.

Answer:

y= 3/2 x -2

Step-by-step explanation:

I guess you want to find the y=mx+b form

So you do +3x on both sides which will gave you: 2y= 3x-4

Then, you will divide by two on both sides to find the y value: 2y/2 = (3x-4)/ 2

So 3/2 is the fraction like the answer above and -4/2 = -2

Hope that helps :)

Answer:

51

Step-by-step explanation:

they are congruent so they are equal to eachotjer

Answer:0.52, 0.545, 0.55, 0.6, 0.65

Source:trust me bro

Answer:

O.52 m, 0.545 m, 0.55 m, 0.6 m, 0.65m. :)

Step-by-step explanation:

Answer:

the function is the solution is done using the operation

Answer:

the ratio is 1/2

Step-by-step explanation:

because each number is times 2

Answer:

0.5   or    1/2

Step-by-step explanation:

plz mark as brainliest

since every inch, is 2 gallons

Answer:If p and q vary inversely, it means that their product remains constant. So we can set up the equation:

p * q = k

where k is the constant of variation.

Given that p is 29 when q is 25, we can substitute these values into the equation:

29 * 25 = k

725 = k

Now, let's determine the value of q when p is equal to 5:

p * q = k

5 * q = 725

Dividing both sides of the equation by 5:

q = 725 / 5

q = 145

Therefore, when p is equal to 5, q is equal to 145.

Step-by-step explanation:

Answer:p1q1=p2q2

q1=25,p1=29;

p2=5,q2=?;

q2=p1q1/p2;

q2=25*29/5;

q2=29*5;

q2=145.

Step-by-step explanation:

Answer:

x = 2.

Step-by-step explanation:

First convert to vertex form:

f(x) = 5x^2 - 20x + 3

= 5(x^2 - 4x) + 3

= 5 [(x - 2)^2 - 4] + 3

= 5(x - 2)^2 -20 + 3

= 5(x - 2)^2 - 17.

The line of symmetry  is x = 2.

Exercise regularly.

Do not smoke or use tobacco products.

Get plenty of rest.

Eat a balanced diet.  

Answer:

you would be 2 years older so you would be 7

Step-by-step explanation:

5 - 3 = 2

5 + 2 = 7

There are over 6 quadrillion ways to make starting hands for Derek, Margaret, and Lenny!

We can start by finding the number of ways to choose 7 cards out of the 52 for Derek, then the number of ways to choose 7 cards out of the remaining 45 for Margaret, and then the remaining cards (which will form Lenny's hand).

The number of ways to choose 7 cards out of 52 is:

C(52,7) = 133,784,560

Once Derek has his 7 cards, there are 45 cards remaining, so the number of ways to choose 7 cards for Margaret is:

C(45,7) = 45,379,620

Finally, Lenny gets the remaining cards, so there is only one way to choose his hand.

Therefore, the total number of ways to make starting hands for all three players is:

133,784,560 x 45,379,620 x 1 = 6,081,679,822,404,800

So there are over 6 quadrillion ways to make starting hands for Derek, Margaret, and Lenny!

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Answer:

b) 458.9

Step-by-step explanation:

the tenths digit is the 8 right of the decimal so if you were to round, it would be 458.9 because 7 is closer to 10 than zero.

Hope this helps and can you please mark me brainliest?I just need 4 more brainliest to become expert

The single factor and double factor is used in single and double variable data. The scale is nominal or ordinal.

A. To assess the relationship between a pair of categorical variables within an individual group or condition, single factor chi square test can be applicable to figure out if the variable is significantly related.

B. On the other hand, two factor chi square tests enables us to assess the association between two variables groups considering each variable having distinct degrees or levels. Thus, it aids in determining the substantial correlation between the variables and if there are variation in the association throughout the each degree of variables. Also, it helps us to understand how two factors interact and have influence on each other. The chi-square test is suited for nominal or ordinal scale data.

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The standard deviation of a Gaussian random variable X with mean E[X] = 60 and P[|X - 60| ≤ 5] = 0.382 is 8.32.

The standard deviation of a Gaussian random variable X can be found by using the formula for the probability density function (PDF) of a normal distribution:

P[X = x] = (1/σ√2π) * e^(-(x-μ)^2 / (2σ^2))

Where μ is the mean, σ is the standard deviation, and e is the base of the natural logarithm.

Given that E[X] = 60 and P[|X - 60| ≤ 5] = 0.382, we can plug in these values into the formula and solve for σ:

0.382 = (1/σ√2π) * e^(-(5)^2 / (2σ^2))

Simplifying and rearranging terms, we get:

0.382σ√2π = e^(-(25) / (2σ^2))

Taking the natural logarithm of both sides, we get:

ln(0.382σ√2π) = -(25) / (2σ^2)

Rearranging and solving for σ^2, we get:

σ^2 = (25) / (2 * ln(0.382σ√2π))

Taking the square root of both sides, we get:

σ = √((25) / (2 * ln(0.382σ√2π)))

Using a calculator, we can approximate the value of σ to be approximately 8.32.

Therefore, the standard deviation of the Gaussian random variable X is approximately 8.32.

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Answer:

y - 4 = -3/5(x - 2)

or

y - 7 = -3/5(x - (-3))

Step-by-step explanation:

In this question, we have to write an equation in standard form with the given information.

Standard form: y - y1 = m(x - x1)

First, find the slope using m = y2-y1/x2-x1:

Plug in coordinates and solve:

4 - 7/2 -(-3)

-3/2+3

m = -3/5

Now we know what our "m" value is on the equation.

You can simply use one of the coordinates and plug the values into the equation to get it in standard form. In this case, we will use the (2, 4) coordinate.

y - 4 = -3/5(x - 2) <- This is one applicable answer.

Your other answer could be y - 7 = -3/5(x - (-3))

The main answer is that the infinite number of types of matter arises from the unique combinations of elements and their arrangements in terms of composition and geometry.

While the number of elements is limited, their combinations and arrangements allow for an infinite number of types of matter. Elements can combine in different ratios and configurations, forming various compounds and structures with distinct properties.

Additionally, the arrangement of atoms within a molecule or the spatial arrangement of molecules within a material can create different types of matter. These factors, along with the possibility of isotopes and different states of matter, contribute to the vast diversity and infinite types of matter despite the limited number of elements.

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The answer to the given question is <0.01.

What is confidence level?

The confidence level is the percentage of times we expect to get near to the same approximate if we run our experiment again or resample the population in the same way. The confidence level is the probability that the null hypothesis is true.

What is p-value?

P-value is the probability of getting the results you did, given that the null hypothesis is true.

When we are conducting a hypothesis testing and we determine the confidence level needed is 99%; then in order to reject the null hypothesis, the p-value needs to be below 0.01 (<0.01).

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The power series representation for f(x) = x/(3x^2 + 1) centered at x = 0 is: f(x) = x + x^2 + x^3 + ...

We will apply  the concept of Maclaurin series expansion.

We find derivatives of f(x):

f'(x) = (1*(3x² + 1) - x*(6x))/(3x² + 1)²

= (3x² + 1 - 6x²)/(3x² + 1)²

= (-3x² + 1)/(3x² + 1)²

f''(x) = ((-3x² + 1)*2(3x² + 1)² - (-3x² + 1)*2(6x)(3x² + 1))/(3x² + 1)\(^4\)

= (2(3x² + 1)(-3x² + 1) - 2(6x)(-3x² + 1))/(3x² + 1)\(^4\)

= (-18x\(^4\) + 8x² + 2)/(3x² + 1)³

The coefficients of the power series are:

f(0) = 0

f'(0) = 1

f''(0) = 2/1³ = 2

f(x) = f(0) + f'(0)x + (f''(0)/2!)x² + ...

f(x) = 0 + x + (2/2!)x² + ...

f(x) = x + x² + ...

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