High concentrations of carbon monoxide CO can cause coma and possible death. The time required for a person to reach a COHb level capable of causing a coma can be approximated by the quadratic modelT=00022 - 316x + 127 9, where is the exposure time in hours necessary to reach this level and 500 5x5 800 is the amount of carbon monoxide present in the air in parts per million (ppm)a) What is the exposure time when x=550?b) Estimate the concentration of CO necessary to produce a coma in 6 hWhat is the exposure time when x=550?Round to the nearest tenth as needed)

Answer:

9 is friday and the ansr is 81

Step-by-step explanation:

Answer:

volume=60cm3, surface area=96cm2

Step-by-step explanation:

volume=1/3×(6×6)×5

=60cm3

surface area= 4(1/2×6×5)+(6×6)

=96cm2

Answer:

here! I hope this helps :) the answer is 13.2 or 13 1 (upon 5)

Step-by-step explanation:

3 × 4 2 (upon 5)

=3× 22 (upon 5)

=66 (upon 5)

=13 1 (upon 5)

The width RQ of the river is approximately 61.98 ft.

To find the width RQ of the river, we can use the properties of perpendicular lines and collinearity.

Given that Karl starts at point R and walks perpendicular along the edge of the river 42 ft to point S, we can draw a line segment RS of length 42 ft.

From point S, Karl walks 28 ft further to point T. We can draw another line segment ST of length 28 ft.

Now, Karl turns 90° from point T and walks until his location (point U), point S, and point Q are collinear. Let's denote the length of this line segment as UQ.

From the given information, we know that TU = 68 ft.

Since U, S, and Q are collinear, we can form a right triangle by connecting UQ and US.

The length of UQ can be found using the Pythagorean theorem, which states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

In this case, we have:

UQ² = TU² - US²

UQ² = 68² - 28²

UQ² = 4624 - 784

UQ² = 3840

Taking the square root of both sides, we have:

UQ = √3840

UQ ≈ 61.98 ft

Therefore, the width RQ of the river is approximately 61.98 ft.

Note: It's important to keep in mind that this solution assumes the river is a straight line and that Karl's path is perpendicular to the river's edge. In reality, the river's edge may not be perfectly straight, and the path Karl walks may not be exactly perpendicular.

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Answer: hello some data is missing from your question attached below is the missing data

answer :

At 10% significance level ; critical value with the dynamic system = -1.3637

                                           critical value with the static system = - 1.4759

hence the data provided is sufficient evidence that mean number of acute postoperative days in the hospital is smaller with the dynamic system

Step-by-step explanation:

At 10% significance level ; critical value with the dynamic system = -1.3637

                                           critical value with the static system = - 1.4759

hence the data provided is sufficient evidence  

Given ∝ = 0.10

i) mean number of dynamic system = ( x1 ) = 7.08

s1 ( std of sample ) = 1.51

sample size = 12

df ( degree of freedom ) = n - 1 = 11

Hence critical value :  t∝,11 = -1.3637 ( = T.INV(0.1,11)

ii) mean number of static system

( x2 ) = 11.33

s2 ( std of static sample ) = 3.83

sample size = 6

df( degree of freedom ) = n -1 = 5

critical value = t∝,5 = -1.4759  ( = T.INV(0.1,5) )

Answer:

445.445

Step-by-step explanation:

because I did it and I got it right

Answer: 85.44

Step-by-step explanation: 80.99*0.055

a. The required exponential function f(x) = (11)(3)ˣ which is passes through the points (2,99) and (6, 8019).

b. The required exponential function g(x) = (40)(0.8)ˣ which is passes through the points (-1,50) and (2, 25.6).

An exponential function is defined as a function whose value is a constant raised to the power of an argument is called an exponential function.

a. Let the formula for an exponential function would be as

⇒ f(x) = abˣ

The exponential function passes through the two points  (2,99) and (6, 8019).

99 = ab²       .....(i)

8019 = ab⁶   .....(ii)

Divided by equation (i), then we get

8019/99 = ab⁶ / ab²  

b⁴ = 81

b = 3

Substitute the value of b = 3 in the equation (i),

99 = a(3)²

a = 11

Substitute the values of a = 11 and b = 3 in the equation f(x) = abˣ

So f(x) = (11)(3)ˣ

Therefore, the required exponential function f(x) = (11)(3)ˣ

b. Similarly let's exponential function g(x) = abˣ  

The exponential function passes through the two points (-1,50) and (2, 25.6).

50 = ab⁻¹

50 = a/b

a = 50b  ....(i)

25.6 = ab²

Substitute the values of a = 50b in the above equation,

25.6 = (50b)b²

25.6 = 50b³

b³ = 25.6/50

b³ = 0.512

b = 0.8

Substitute the value of b = 0.8 in the equation (i),

a = 50(0.8)

a = 40

Substitute the values of a = 40 and b = 0.8 in the equation f(x) = abˣ

So g(x) = (40)(0.8)ˣ

Therefore, the required exponential function g(x) = (40)(0.8)ˣ.

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Answer:

\(\theta=270^\circ\)

Step-by-step explanation:

Given Equation and Parameters

\(sin^2\theta-4sin\theta-5=0,\: 0^\circ\leq\theta\leq 360^\circ\)

Calculation

Let \(u=sin\theta\), thus:

\(u^2-4u-5=0\\\\(u+1)(u-5)=0\\\\u=-1,\: u=5\)

\(sin\theta=-1\\\\\theta=270^\circ\)

\(sin\theta=5\\\\\theta=unde fined\)

Conclusion

\(\theta=270^\circ\)

Answer:

1.71428571

Step-by-step explanation:

1.71428571

Answer:

21 square yards

Step-by-step explanation:

I'm not too sure, but I just did 3 1/2 square yards of fabric and multiplied it by 6 patio chairs. Hope that helps, sorry if it didn't!

a. The value of c in the probability mass function when x is a discrete random variable is 0.15

b. The value of P(x > 3)  is 0.25

c. The value of P(3 ≤ x ≤ 5) is 0.15

d.  the probability that x is less than 6 given that it is greater than or equal to 1 is approximately 0.353.

In probability mass function, sum of the probabilities for all possible values of x must be equal to 1

Thus,

0.2 + 2c + 0.2 + c + 0.1 = 1

Solve for c

c = 0.15

Hence, the probability mass function for x can be rewritten as;

x:      0     1     2   4     10

p(x): 0.2 0.3 0.2 0.15 0.1

To find P(x > 3), add the probabilities for all values of x that are greater than 3. The values greater than 3 are 4 and 10

sum of their  probabilities

P(x > 3) = P(x = 4) + P(x = 10)

= 0.15 + 0.1

= 0.25

To find P(3 ≤ x ≤ 5),sum the probabilities for all values of x between 3 and 5, inclusive:

P(3 ≤ x ≤ 5) = P(x = 4)

= 0.15

To find P(x < 6 | x ≥ 1), use the formula for conditional probability:

P(x < 6 | x ≥ 1) = P(x < 6 and x ≥ 1) / P(x ≥ 1)

To find the numerator, we sum the probabilities for all values of x between 1 and 5, inclusive

P(x < 6 and x ≥ 1) = P(x = 1) + P(x = 2) + P(x = 4)

= 0.3

To find the denominator, we sum the probabilities for all values of x greater than or equal to 1:

P(x ≥ 1) = P(x = 1) + P(x = 2) + P(x = 4) + P(x = 10)

= 0.85

Therefore, we have

P(x < 6 | x ≥ 1) = (0.3 / 0.85) ≈ 0.353

Thus, the probability that x is less than 6 given that it is greater than or equal to 1 is approximately 0.353.

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The probability that there will be a seat available for every passenger that shows up is given as follows:

0.6276 = 62.76%.

The binomial distribution formula gives the probability of obtaining a specific number of successes in a fixed number of independent trials, where each trial has only two possible outcomes (success or failure) and the probability of success is constant throughout the trials.

The mass probability formula is given by the equation presented as follows:

\(P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}\)

\(C_{n,x} = \frac{n!}{x!(n-x)!}\)

The parameters, along with their meaning, are listed as follows:

The parameters for this problem are given as follows:

n = 42, p = 0.95.

(p is the probability of a person showing up).

The probability of more than 40 people showing up is obtained as follows:

P(X > 40) = P(X = 41) + P(X = 42).

In which:

Hence:

P(X > 40) = 0.2564 + 0.1160 = 0.3724.

Hence the probability of a vacant seat is of:

1 - 0.3724 = 0.6276 = 62.76%.

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Answer:

I think it is A

Step-by-step explanation:

can you give brainliest

Answer:

A

Step-by-step explanation:

The goal is 750 and to see how many they still need to collect you have to take away the sum of what they've already collected each month.

Based on the description, the total area of the figure would be 45 square meters.

To find the total area of the figure, we need to divide it into two triangles and one rectangle.

The rectangle has a base of 9 meters and a height of 4 meters, so its area is 9 x 4 = 36 square meters.

The two triangles each have a base of 3 meters and a height of 3 meters, so each triangle has an area of 1/2 x 3 x 3 = 4.5 square meters.

Therefore, the total area of the figure is the sum of the area of the rectangle and the two triangles:

36 + 4.5 + 4.5 = 45 square meters

So the answer is 45 m2.

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The fraction of the voters polled voted for Eric Jackson is 50/13. A fraction is a portion of a whole or, more broadly, any number of equal parts.

Therefore,

The fraction of the voters polled voted for Eric Jackson is 50/13

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Answer:

x= -3 and 0

Step-by-step explanation:

Where the function crosses the x axis, or y=0

Answer:

the time at which P =15 is \({t_o = 0.54161 \ years}\)

the time at which P =20 is \({t_1 = 0.59914 \ years}\)

the doubling time \({t = 0.138629 \ years}\)

Step-by-step explanation:

From the information we are being provided with:

The quantity P i.e \(P(t) = e ^{5t}\)

In order to determine the time at which P = 15, we have the following:

\(t= t_o\)    when P = 15

∴ \(e^{5t_o} = 15\)

\(5t_o= In (15)\)

\(t_o = \dfrac{1}{5}In 15\)

\(t_o = \dfrac{1}{5} \times 2.70805\)

\({t_o = 0.54161 \ years}\)

Hence, the time at which P =15 is \({t_o = 0.54161 \ years}\)

In order to determine the time at which P = 20, we have the following:

\(t= t_1\)    when P = 20

∴ \(e^{5t_1} = 20\)

\(5t_1= In (20)\)

\(t_1= \dfrac{1}{5}In (20)\)

\(t_1 = \dfrac{1}{5} \times 2.9957\)

\({t_1 = 0.59914 \ years}\)

Hence, the time at which P =20 is \({t_1 = 0.59914 \ years}\)

The doubling time at t = 0, mean P = 2

∴ \(e^{5t} = 2\)

\(5t= In (2)\)

\(t= \dfrac{1}{5}In(2)\)

\(t = \dfrac{1}{5} \times0.693147\)

\({t = 0.138629 \ years}\)

Hence, the doubling time \({t = 0.138629 \ years}\)

Answer:

Step-by-step explanation:

哇，我喜歡吃很多食物，因為我喜歡並喜歡它。

Wa, wǒ xǐhuān chī hěnduō shíwù, yīnwèi wǒ xǐhuān bìng xǐhuān tā.

\( \textsf{\qquad\qquad\huge\underline{{\sf Answer}}} \)

Let's solve ~

\(\qquad \sf  \dashrightarrow \:(2 {}^{ \frac{2}{x} } ) \sdot(2 {}^{ \frac{4}{x} } ) = 2 {}^{12} \)

\(\qquad \sf  \dashrightarrow \:(2 {}^{ \frac{2}{x} + \frac{4}{x} } ) = 2 {}^{12} \)

\(\qquad \sf  \dashrightarrow \:(2 {}^{ \frac{6}{x} } ) = 2 {}^{12} \)

Now, since the base on both sides are equal, therefore their exponents are equal as well ~

\(\qquad \sf  \dashrightarrow \: \dfrac{6}{x} = 12\)

\(\qquad \sf  \dashrightarrow \:x = \dfrac{6}{12} \)

\(\qquad \sf  \dashrightarrow \:x = \dfrac{1}{2} \)

or

\(\qquad \sf  \dashrightarrow \:x = 0.5\)

Hope you got the required Answer ~

The place value of a digit in a given number can be in either unit, tens, hundred, thousand, hundred of thousand etc.  Therefore the required answer is option B. 0.18.

The place value of a digit is its position in a given number. These could either be as unit, tens, hundred, thousands, ten thousands etc.

This can now be stated as required. This knowledge is required when round off a given decimal number to either a required number of significant figure or decimal places.

So that considering the given question, the place value of 1 in the given number 0.1 is tenths. Therefore, the place value of digit 1 that would make it to have a value of 0.1 is the number 0.18. Thus option B.

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Answer:

A. quadratic function; quadratic term: 6x2; linear term: x; constant term: −12

Step-by-step explanation:

We have been given the equation

The degree of the given polynomial is 2.

Hence, the function is quadratic.

The term with exponent 2 on x is called the quadratic term. The term with exponent  1 on x is called linear and the term without any variable is a constant term.

Therefore, we have

Quadratic term= 6x^2

Linear term= x

Constant term= -12

9514 1404 393

Answer:

  A. quadratic function; quadratic term: 6x²; linear term: x; constant term: −12

Step-by-step explanation:

The squared term (6x^2) is also called the "quadratic" term. The term with x to the first power (no exponent) is the "linear" term. The term with no variable at all is the "constant" term.

It should be no mystery that the quadratic term is 6x^2; the linear term is x; and the constant term is -12.

_____

Additional comment

As with much of algebra, this is about vocabulary and pattern recognition.

Answer:

A

Step-by-step explanation:

as a negitive 1/2 is closer than 3/4

Answer:

Step-by-step explanation:

its 186

Answer:

4.28%

Step-by-step explanation:

We Know

Last year you earned $72,400

This year you earned $75,500

What was the rate of change in your earnings since last year?

We Take

(75,500 ÷ 72,400) x 100 ≈ 104.28%

Then We Take

104.28 - 100 = 4.28%

So, the earning increased by about 4.28%.

it will take a total of 15 hours to give away all of the tickets.

Why it will take 15 hours to give away all of the tickets?

This is because 30 divided by 2 is equal to 15. So if the radio gives away 2 tickets each hour, it will take 15 hours to give away all 30 tickets.

Note that this assumes that the radio station gives away tickets continuously and without any breaks. In reality, the radio station might give away tickets on certain days or at certain times, or might take breaks between giving away tickets.

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Answer:

5

Step-by-step explanation:

When you have a negative next to a negative, you can turn it into a positive. For example the -(-8) would now be +8. This is called the airplane strategy because it forms a airplane if you flip you sheet of paper or your device.

From here, we have -3+8.

Now we subtract since each value has a different sign and we get +5.

Hope this helps!! :)

Answer:

5

Step-by-step explanation:

-*-=+

-*+=-

+*+=+

-3-(-8)=5

-3+8=5

Answer:

B

Step-by-step explanation:

The \(y\)-intercept is \((0,27)\), eliminating all the options except for B.

Answer:

correct

Step-by-step explanation:

my brain be smart