Mathematics College

help help help pls pls​

Help Help Help Pls Pls

Answers

Answer 1

Answer:

C. 2y = -12

Step-by-step explanation:

Well a function is when all x values have only one corresponding y value and on a graph we can use the vertical line test and in doing so we know that the answer is C. 2y = -12

Answer 2

Answer:

Step-by-step explanation:hi

Related Questions

Which proportion would convert 18 ounces into pounds?

Answers

Answer:

16 ounces = 1 pound

Step-by-step explanation:

You would just do 18/16 = 1.125 pounds. There are always 16 ounces in a pound, so it always works like this

16 ounces to 1 pound

Would this be correct even though I didn’t use the chain rule to solve?

Answers

Answer:

Dy/Dx=1/√ (2x+3)

Yeah it's correct

Step-by-step explanation:

Applying differential by chain differentiation method.

The differential of y = √(2x+3) with respect to x

y = √(2x+3)

Let y = √u

Y = u^½

U = 2x +3

The formula for chain differentiation is

Dy/Dx = Dy/Du *Du/Dx

So

Dy/Dx = Dy/Du *Du/Dx

Dy/Du= 1/2u^-½

Du/Dx = 2

Dy/Dx =( 1/2u^-½)2

Dy/Dx= u^-½

Dy/Dx=1/√ u

But u = 2x+3

Dy/Dx=1/√ (2x+3)

At 95% confidence, how large a sample should be taken to obtain a margin of error of 0.05 for the estimation of a population proportion

Answers

Answer:

A sample of 385 is needed.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

The margin of error is:

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

95% confidence level

So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].

How large a sample:

We need a sample of n.

n is found when M = 0.05.

We dont know the true proportion, so we work with the worst case scenario, which is [tex]\pi = 0.5[/tex]

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

[tex]0.05 = 1.96\sqrt{\frac{0.5*0.5}{n}}[/tex]

[tex]0.05\sqrt{n} = 1.96*0.5[/tex]

[tex]\sqrt{n} = \frac{1.96*0.5}{0.05}[/tex]

[tex](\sqrt{n})^{2} = (\frac{1.96*0.5}{0.05})^{2}[/tex]

[tex]n = 384.16[/tex]

Rounding up

A sample of 385 is needed.

For the triangle show, what are the values of x and y (urgent help needed)

Answers

we just have to use the Pythagoras theorem and then calculate the value of x and y.

Christopher collected data from a random sample of 800 voters in his state asking whether or not they would vote to reelect the current governor. Based on the results, he reports that 54% of the voters in his city would vote to reelect the current governor. Why is this statistic misleading?

Answers

Answer:

The statistic is misleading because Christopher collects his sample from a population (voters in his state) and make inferences about another population (voters in his city).

Step-by-step explanation:

The statistic is misleading because Christopher collects his sample from a population (voters in his state) and make inferences about another population (voters in his city).

He should make inferences about the population that is well represented by his sample (voters in his state), or take a sample only from voters from his city to make inferences about them.

Other Questions
What does the word facetious mean ?What indicates that this is a definition clue ? Consider the following expression and the simplified expression. Expression Simplified Expression 3 x squared + 5 y squared box + 3 box + 4 y squared + 6 9 x squared minus y squared + 9 Which terms could be in the boxes to make the expressions equivalent? Positive 6 x squared and Negative 6 y squared Positive 6 x squared and Negative 10 y squared Positive 9 x squared and Negative 10 y squared Positive 9 x squared and Negative 6 y squared elaboramos lineas de tiempo sobre de las danzas hatajos de pallas y los avelinopara hoy habla de las danzas hatajos de pallas y los avelinoes para hoyyy intro to geometric sequences (help pls) Read this passage from Sonnet 116 by Shakespeare. What is the speaker saying about time? A. Time will change our youthful appearance, but it will not changetrue love.B. Time can cause even the strongest love to wither and die.C. Time has no effect on the beauty of the one you truly love.D. Time is the final judge and will decide which loves last and whichwill fail. If the prefix pro- means "forward," what is the exact meaning of the word propulsion?A.) force that drives something forward. B.) force that writes back. C.) force that places items together. D.) force that sends something away. Explain how, in late winter, with snow covered ground and a southeasterly wind, advection fog could develop at Atlantas International Airport (located in the US Southeast, over 200 miles from the ocean) to create low visibility and flight delays. The rate at which two methyl radicals couple to form ethane is significantly faster than the rate at which two tert-butyl radicals couple. Offer two explanations for this observation. How would an MOD amalgam be charted for tooth number 4? Which medical issue requires a medical specialist? vaccination pregnancy test cancer diagnosis blood pressure check Please please help!!! Study the diagram of circle Z. Points P, O, Q, and R lie on circle Z in such a way that OPQR. If mQZR=(2x+9) and mPZO=(4x11), what is the value of x? x=3.3 x=15.3 x=10 x=12 Which proportion would convert 18 ounces into pounds? 9. The U.S. has 10 million miles of road.A. O TrueB. O False Need Help Please I'm Out Of Time ;( Which of the following questions are statistical questions? Select all that apply How far does Mary live from school? How many students were absent from Mrs. Jenssen's class today? How tall are the sixth-grade students in your school? How many pull-ups can each student in your class do? What was the temperature at 4 p.m. each day this week? difference between plant and animal cyanide resistance respiration. Rodriguez Company pays $310,000 for real estate plus $16,430 in closing costs. The real estate consists of land appraised at $215,000; land improvements appraised at $86,000; and a building appraised at $129,000.Required:1. Allocate the total cost among the three purchased assets.2. Prepare the journal entry to record the purchase. Tropetech Inc. has an expected net operating profit after taxes, EBIT(1 T), of $2,400 million in the coming year. In addition, the firm is expected to have net capital expenditures of $360 million, and net operating working capital (NOWC) is expected to increase by $45 million. How much free cash flow (FCF) is Tropetech Inc. expected to generate over the next year? Solve for x. Write both solutions, separated by a comma. 8x^2+7x-1=0 The unusual patterns on a silk moths wings are one of the most stunning examples of mimicry in the wild,mimicry can protect the moth? 1.How did Catherine succeed where Peter the Great had failed?a) She strengthened the institute of serfdom.b) She won a warm-water port for Russia.c) She expanded Russia's borders.d) She introduced policies to westernize Russia.