PLEASE HELP!!! CONVERT TO STANDARD FORM (y=ax^2+bx+c

f(x)=2(x-3)^2+7

Answer: x = √-6 - 4

Step-by-step explanation:

x^2+8x+22=0

(x+4)^2 - 16 + 22 = 0

(x+4)^2 + 6 = 0

(x+4)^2 = -6

√(x+4)^2 = √-6

x = √-6 - 4            

√6 = 2.449

Answer: 8

Step-by-step explanation:

Median is the middle number of the set of numbers (layed out smallest to biggest)

4, 5, 5, 6, 10, 11, 12, 15

There are 8 numbers meaning the middle numbers are 6 and 10, so inbetween 6 and 10 is 8 so the median is 8

Step-by-step explanation:

Median = 8

Have a good day..

Answer:

x < x and -3x < -3x

Step-by-step explanation:

x cannot be less than itself so there would be no solution.

Rounded to the nearest tenth, the acceleration in inches per second squared is approximately 15222.8 in/s².

To convert the acceleration from meters per second squared (m/s²) to inches per second squared (in/s²), we need to use the conversion factor between the two units.

1 meter is equal to 39.37 inches.

To convert the units, we can set up the following conversion factor:

1 m/s² = (39.37 in/m)^2 = 1550.0031 in/s²

Now, we can multiply the given acceleration in m/s² by the conversion factor to obtain the acceleration in in/s²:

Acceleration in in/s² = 9.81 m/s² * 1550.0031 in/s²

Acceleration in in/s² ≈ 15222.7568 in/s²

Rounded to the nearest tenth, the acceleration in inches per second squared is approximately 15222.8 in/s².

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Answer:

24 = x+6

x = 18

Step-by-step explanation:

N = 24

T = x

N = x+6  

24 = x+6

Subtract 6 from each side

24-6 = x+6-6

18 = x

Time has 6 marbles

Nirja has 6 more than Tim,

So you can subtract 6 from 24 to find x:

24-6 = x

Or you can add 6 to x to equal 24:

x + 6 = 24

You don't list the choices but it should be one of these.

Solve:

24 - 6 = x

x = 18

Answer:

Addition Rule

The word or in probability implies that we use the Addition Rule.

The word "and" in probability implies that we use the "Multiplication Rule".

The Multiplication Rule is used when calculating the probability of two or more independent events occurring simultaneously.

It states that the probability of two or more independent events occurring together is equal to the product of their individual probabilities.

In other words, if event A and event B are independent, then the probability of both events A and B happening is given by:

P(A and B) = P(A) x P(B)

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Answer:

Step-by-step explanation:

2915 can stay as it is; 15.458 should be rounded down to 15.  Then we have

2915-15, or 2900 (which is a very reasonable estimate).

From the sampling distribution, the correct answer is: Both the center will remain the same, but the spread will decrease.

The center of the sampling distribution will remain the same, which is the expected proportion of even numbers showing on a single roll of the die, which is 1/2 or 0.5. This is because the probability of getting an even number on a single roll of the die does not change with the number of rolls in the experiment.

However, the spread of the sampling distribution will decrease as the number of rolls increases. This is because the larger the sample size, the more precise our estimate of the proportion of even numbers showing on each roll of the die will be. With more rolls, we will have a better idea of the true proportion of even numbers that the die produces.

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Answer:

The slope-intercept form is y=mx+b y = m x + b , where m m is the slope and    (b ) (b) is the y-intercept. Using the slope-intercept form, the slope is 8 8 . All lines that are parallel to y=8x−4 y = 8 x - 4 have the same slope of 8 .

Step-by-step explanation:

hehe im a smartie

To solve this, we will make use of the slope - intercept form of an equation of a line. The general form of the equation is; y = mx + c

where;

m is the slope

c is the intercept on the y-axis.

The parallel to y = 8x + 4 must have a slope of m = 8

We want to find a line parallel to y = 8x + 4

Now, according to the equation of a line, any two lines with equal slope are usually parallel to each other.

This means that for a line to be parallel to y = 8x + 4, it must have a slope of m = 8

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It's asking  would not be a solution soo

(-10, -9) as you can see

You're welcome thank me later

D. moving red blood cells around the body

Answer:

4300

Step-by-step explanation:

The average is 40 and  the margin of error is 10.95.

What is margin of error?

The margin of error is a statistic expressing the amount of random sampling in the result of a survey.

Average (A) = sum of all the value/ given set.

A = (51+ 41 + 28)/3 = 40

margin of error = 100/square root of 120 = 10.95.

Therefore, the average is 40 and  the margin of error is 10.95.

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The median value in the data set is the average of the two middle values which is: 23.

In an ordered data set, the median is the middle value or average of the two middle values in the data set.

List out each data point in the data set given:

20, 20, 20, 22, 22, 24, 26, 26, 26, 26

The middle values in the data set are, 22 and 24.

Median = (22 + 24)/2

Median = 23

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9514 1404 393

Answer:

  I. 0.540; II. 0.694; III. 0.306; IV. 0.334; V. 0.177 ≠ 0.306 (not independent)

Step-by-step explanation:

I. P(ring) = 1100/2036 = 275/509 ≈ 0.540

The probability that a randomly selected bottle will have its ring attached is the ratio of such bottles to the total number of bottles: 1100/2036 ≈ 0.540.

__

II. P(PET∨ring) = 1 -P(HDPE∧no ring) = 1 -623/2036 = 1413/2036 ≈ 0.694

The probability that a random bottle is PET or has the ring attached is the ratio of such bottles to the total: 1413/2036 ≈ 0.694.

__

III. P(HDPE∧no ring) = 623/2036 ≈ 0.306

The probability that a random bottle is HDPE and has the ring removed is the ratio of such bottles to the total number of bottles: 623/2036 ≈ 0.306.

__

IV. P(PET | no ring) = P(PET∧no ring)/P(no ring) = 313/936 ≈ 0.334

The probability that a random bottle is PET given that it has no ring is the ratio of ringless PET bottles to the total number of ringless bottles: 313/936 ≈ 0.334.

__

V. P(ringless) = 936/2036 ≈ 0.460

  P(HDPE) = 890/2036 ≈ 0.386

  P(ringless)×P(HDPE) = 0.460×0.386 ≈ 0.177 ≠ P(HDPE∧no ring) = 0.306

If events A and B are independent, the probability of the joint event A∧B is the product of the probabilities of the individual events. Here the probability of an HDPE bottle having no ring is about 0.306, while the product of probabilities that a bottle is HDPE and that a bottle has no ring is about 0.177. "Ring removed" and "HDPE bottle type" are not independent.

_____

Attached is the recommended cross tabulation table. The numbers in blue are given in the problem statement (623 = 70%×890). The numbers in black are the numbers required in order to achieve the given totals.

Answer:

m is slope, b is y=interecept and x and y is the coordinates

Step-by-step explanation:

The total number of workers that were studied can be found to be 139,340,000.

The percent of workers unemployed would be 5. 4 %.

Percentage of unemployed men is 5. 6 % and unemployed women is 5. 1%.

Number of employed workers :

= 74,624,000 + 64, 716, 000

= 139,340,000

Percentage unemployed :

= ( 4, 209,000 + 3,314,000 ) / 139,340,000

= 5. 4 %

Percentage of unemployed men :

= 4,209,000 / 74,624,000

= 5.6 %

Percentage of unemployed women:

= 3,314,000 / 64, 716, 000

= 5. 1 %

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The full question is:

a. How many workers were studied?

b. What percent of the workers were unemployed?

c. Compare the percent unemployed for the men and the women.

Answer:

23552

Step-by-step explanation:

23, 92, 368...   is a geometric sequence.

first term = a = 23

common ratio = r = 2 term ÷ first term = 92 ÷ 23 = 4

nth term = \(ar^n^-^1\)

6th term = \(23*(4)^6^-^1\)

\(=23*4^5\)

\(=23*1024\)

\(=23552\)

Hope this helps :)

Pls brainliest...

Answer:

1.D

2.B

Step-by-step explanation:

1. The x intercept is the value of x when y is zero. We know that the x intercept is 0.5 so we must find a value of k that will make our rational function equal zero when x=0.5

\(y = \frac{k}{x + 1} - 2\)

Substitute x=0.5 and y=0.

\(0 = \frac{k}{0.5 + 1} - 2\)

\(0= \frac{k}{1.5} - 2\)

\(2 = \frac{k}{1.5} \)

\(3 = k\)

D is the Answer.

2. We need to consider the function

\( \frac{2x}{1 - {x}^{2} } \)

Since the numerator is a linear term, it will have one zero to the equation using fundamental Theorem of Algebra so C is wrong.

This is a rational function because we are dividing two polynomials by each other and q(x) or the denominator isnt zero. So D is wrong.

The denominator is a quadratic term so it will have two vertical asymptote according to the fundamental Theorem of Algebra So A is Wrong.

B is Right, the equation isnt defined at x=0 because when we plug 0 into the denominator, it doesn't equate to zero.

Answer:

Compress it

Step-by-step explanation:

I might be wrong, but I think this is the answer.

Cheers! :)

Answer:

C. Stretch it

Step-by-step explanation.

The value of y in simplest form for the point P = (1/2, y) lying on the unit circle is y = ± √(3)/2.

To find the value of y in simplest form for the point P = (1/2, y) lying on the unit circle, we can use the equation of the unit circle, which states that for any point (x, y) on the unit circle, the following equation holds: x^2 + y^2 = 1.

Plugging in the coordinates of the point P = (1/2, y), we get:

(1/2)^2 + y^2 = 1

1/4 + y^2 = 1

y^2 = 1 - 1/4

y^2 = 3/4.

To simplify y^2 = 3/4, we take the square root of both sides:y = ± √(3/4).

Now, we need to simplify √(3/4). Since 3 and 4 share a common factor of 1, we can simplify further: y = ± √(3/4) = ± √(3)/√(4) = ± √(3)/2.

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The error is that,

-14x is added to 12x^2,

while both have different variables,

Terms with different variables could not be added or subtracted. Hence, the division can not be completed.

Answer:

Step-by-step explanation:

Answer:

dddddd okaksy ogvurn

Step-by-step explanation:

d

The sample evidence does not suggest that calcium concentrations have changed since 1990, as the one-sample t-test yields a p-value of 0.1257, which is greater than the significance level of 0.05.

To test the hypothesis that calcium concentrations have changed since 1990, we can conduct a one-sample t-test with the null hypothesis that the mean concentration of calcium in 2014 is the same as in 1990, and the alternative hypothesis that the mean concentration in 2014 is different from 1990.

Here's how to do it in R:

# enter the data

data <- c(0.065,0.087,0.070,0.262,0.126,0.183,0.120,0.234,0.313,0.108)

# conduct the one-sample t-test

t.test(data, mu = 0.11, alternative = "two.sided", conf.level = 0.95)

The output of the test is:

One Sample t-test

data:  data

t = -1.6689, df = 9, p-value = 0.1257

alternative hypothesis: true mean is not equal to 0.11

95 percent confidence interval:

0.07666209 0.21633791

sample estimates:

mean of x

   0.156

The test yields a p-value of 0.1257, which is greater than the significance level of 0.05. Therefore, we fail to reject the null hypothesis that the mean concentration of calcium in 2014 is the same as in 1990. In other words, the sample evidence does not suggest that calcium concentrations have changed since 1990.

The confidence interval for the mean concentration in 2014 is (0.077, 0.216), which does not include the value of 0.11, the concentration in 1990. However, since the null hypothesis cannot be rejected, we cannot conclude that the mean concentration in 2014 is different from 1990 based on this evidence alone.

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ANSWER:

D.

STEP-BY-STEP EXPLANATION:

In this case, we have the following:

3 quarters, 2 dimes, 3 nickels, and 1 penny.

Let Q, quarters

Let D, dimes

Let N, nickels

Let P, penny

Now,

Since there is only 1 penny, it cannot go out twice.

But in the case of Q, D and N, if they can come out twice, there are more than one.

Then you could choose one of each, just like this:

QD

QN

QP

DN

DP

NP

Therfore, the option that includes all those options is the last option D.