To reduce laboratory​ costs, water samples from public swimming pools are combined for one test for the presence of bacteria. Further testing is done only if the combined sample tests positive. Based on past​ results, there is a probability of finding bacteria in a public swimming area. Find the probability that a combined sample from public swimming areas will reveal the presence of bacteria. Is the probability low enough so that further testing of the individual samples is rarely​ necessary?

Answer:

y=100x+400

Step-by-step explanation:

change in y over change in x gives slope and the y intercept is 400

Answer:

In the first section the steps are wrong because they ditributed the 2 wrong they 1 shpuld be a 2 in the second row of unbolded numbers

Step-by-step explanation:

[tex]9.16 = 585288 { \sqrt[5 < 63 = 33 \times \\ ]{?} }^{?} [/tex]

Answer: Its 0.75 hours :)

Answer:

55%

Step-by-step explanation:

Answer:

Zero

Step-by-step explanation:

In math, an identity is a number, n, that when added to other numbers, gives the same number, n. The additive identity is always zero. This brings us to the identity property of addition, which simply states that when you add zero to any number, it equals the number itself

Answer:

Zero

Step-by-step explanation:

In math, an identity is a number, n, that when added to other numbers, gives the same number, n. The additive identity is always zero. This brings us to the identity property of addition, which simply states that when you add zero to any number, it equals the number itself

Step-by-step explanation:

Answer:

(x+25)(x-30)

Step-by-step explanation:

Answer:

factor out 1/4 from the expression

1/4x(1-3x)

9514 1404 393

Answer:

  1/8 lb or 2 oz

Step-by-step explanation:

You find the weight per egg by dividing the weight by the number of eggs:

  (3/4 lb)/(6 eggs) = 3/24 lb/egg = 1/8 lb/egg

A pound is 16 ounces, so 1/8 lb is 2 oz.

Each egg weighs 1/8 lb or 2 oz.

Answer:

The correct option is C, the columns of A are linearly dependent because if the last column in B is denoted ​, then the last column of AB can be rewritten as A0. Since B is not all​ zeros, then any solution to A0 can not be the trivial solution

Step-by-step explanation:

Firstly, have to define linear dependency to get a clear picture of what is to be done.

If we have two vectors A and B, they are said to be linearly independent if Ax + By = 0 if and only if x = y = 0. Otherwise they are linearly dependent.

Now, let p denote the last column of the matrix B. We are given that the last column of AB is zero, therefore Ap = 0. Although p is not the zero vector, because B has no columns of zeros, therefore the equation Ap = 0 is a linear dependence relation among the columns of A. Hence, the columns of A are linearly dependent.

Answer:

1/3 is the y-intercept of the function

Answer:

Domain: (-∞,∞)

Range: (-∞,∞)

Answer:

m=slope  y = intercept

m= y2-y1 / x2-x1

       2-1   /   2-0  =  1 /2

now pick one of the points and put in for y and x

use (2,2)    2= 1/2(2) +b

                  2=1 + b

              2-1 =1-1 +b   subtract 1 from each side

                  1 = b   This is your y intercept

Step-by-step explanation:

The equation of the line passing through points  (0,1) and (2,2) will be y = ( 1 / 2) x + 1

An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.

The general form of the equation of the line:-

y = mx + c

m = slope

c = y-intercept

Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )

Slope= 2-1   /   2-0  =  1 /2

Now pick one of the points and put in for y and x use (2,2).

2= 1/2(2) +b

2=1 + b

2-1 =1-1 +b   subtract 1 from each side

1 = b   This is your y-intercept

The equation will be written as:-

y = ( 1 / 2) x + 1

Therefore, the equation of the line passing through points  (0,1) and (2,2) will be y = ( 1 / 2) x + 1.

To know more about an equation of the line follow

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Answer:

See attached

Step-by-step explanation:

The answer filled in the paper, refer to attachment

Answer:

Use y-y1 = m*(x-x1) where m = slope and (x1,y1) is the point.

Step-by-step explanation:

found the info on a random website

Answer:

THE ANSWER IS YOU CAN DO IT BECAUSE YOUR SMART!!!!!

Step-by-step explanation:

Answer:

Two equations that have the same solution are called equivalent equations e.g. 5 +3 = 2 + 6. And this as we learned in a previous section is shown by the equality sign =. An inverse operation are two operations that undo each other e.g. addition and subtraction or multiplication and division. You can perform the same inverse operation on each side of an equivalent equation without changing the equality.

5+3−2=6+2−2

This gives us a couple of properties that hold true for all equations.

The addition property of equality tells us that adding the same number to each side of an equation gives us an equivalent equation

ifa−b=c,thena−b+b=c+b,ora=c+b

The same goes with the subtraction property of equality.

ifa+b=c,thena+b−b=c−b,ora=c−b

As well as it goes for the multiplication property of equality. If you multiply each side of an equation with the same nonzero number you produce an equivalent equation.

ifab=c,andb≠0,thenab⋅b=c⋅b,ora=cb

And naturally this goes for the division property of equality as well. You can divide each side of an equation with the same nonzero number to produce an equivalent equation

ifa⋅b=c,andb≠0,thena⋅bb=cb,ora=cb

This gives us a way to change an equation to our own liking. Anything is acceptable as long as you do the same thing on both sides.

so pretty much what I'm tryna say it x=4

sorry for being so extra-

Answer:

See below

Step-by-step explanation:

It does not exist because the

[tex](-1)^x[/tex]

doesn't tend to some value it just loop around

[tex]-1, 1[/tex]

for ever

it exist when we have

[tex]\lim_{x\rightarrow \infty}[(\frac{1}{x})][/tex]

there when the value of x increasing the fractions tends to 0

so we can say that when x approaches infinity the value is 0.

Tell me if i haven't made myself clear

Answer:

4

Step-by-step explanation:

Answer:

No solution

Hope this helps! :)

Answer:

its C.

Step-by-step explanation:

omg that took forever to solve

Answer:

36

Step-by-step explanation:

it took David's car 90 seconds  and chris's car 54 seconds so that means

90-54=36

The number of seconds would they meet again at the starting point will be 270 seconds.

The corresponding value integer that can be divided by both is known as the lowest relevant multiple, commonly referred to as the lowest common multiple of pair (or more) numerals a and b.

David's car would cover one lap of the Indy 500 in about 90 seconds. Chris’s car could cover one lap in about 54 seconds.

If both cars left the same starting point at the same time. Then the number of seconds would they meet again at the starting point will be given as,

L.C.M. = 90, 54

L.C.M. = 2 x 3 x 3 x 5, 2 x 3 x 3 x 3

L.C.M. = 2 x 3 x 3 x 3 x 5

L.C.M. = 270 seconds

The number of seconds would they meet again at the starting point will be 270 seconds.

More about the least common factor link is given below.

https://brainly.com/question/14875184

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Answer:

It means that you take a triangle and make another one but this time it is not the same size of the first one but the same shape. In other words make it bigger or smaller than the first one.

Answer:

1.) Domain: [-2, 1] Range: [1, 2] 2.) Domain: [-1, 2] Range: [-2, 2]

Step-by-step explanation:

Answer: 53

Step-by-step explanation:

79

-26

53

Answer:

Hi there!

Your answer is:

3+.15m =c

I cannot read your answer choices, but that is your answer. I believe your answer choice that matches is the lowest one; C= 3,00 +.15m

Hope this Helps

Answer:

The Remainder Theorem states that f(c) = the remainder. So if the remainder comes out to be 0 when you apply synthetic division, then x - c is a factor of f(x). by x - 2. Use the result to find all zeros of f

Answer:

Hello your question has some missing part below is the missing part

The Zagat Restaurant Survey provides food, decor, and service ratings for some of the top restaurants across the United States. For 15 restaurants located in Boston, the average price of a dinner, including one drink and tip, was $48.60. You are leaving for a business trip to Boston and will eat dinner at three of these restaurants. Your company will reimburse you for a maximum of $50 per dinner. Business associates familiar with these restaurants have told you that the meal cost at one-third of these restaurants will exceed $50. Suppose that you randomly select three of these restaurants for dinner.

Answer : 0.2637

Step-by-step explanation:

Average price of dinner including one drink and a tip in Boston = $48.60

Number of restaurants = 15

number of restaurants whose meal cost more than $50 = 1/3 * 15 = 5

Probability that None of the meals will exceed the cost covered by your company

ATTACHED BELOW is the solution

P( none ) = 0.2637

Answer:

#1

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

did it on ed

Answer:

In geometry, a hypotenuse is the longest side of a right-angled triangle, the side opposite the right angle. The length of the hypotenuse of a right triangle can be found using the Pythagorean theorem, which states that the square of the length of the hypotenuse equals the sum of the squares of the lengths of the other two sides. For example, if one of the other sides has a length of 3 (when squared, 9) and the other has a length of 4 (when squared, 16), then their squares add up to 25. The length of the hypotenuse is the square root of 25, that is, 5.

Step-by-step explanation:

Hope this helps! <3