Mathematics High School

Select all the intervals where f is decreasing.(Choice A)-5

Answers

Answer 1

Looking at the graph

we have that

Decreasing intervals are

(-infinite, -2.5) and (1.75, infinite)

Verify each option

A ----> is true

B ---> is not true

C ---> is true

D ---> is not true

The answer is A and C

Related Questions

Find the max and min values
100 +14.75 %

Answers

Step-by-step explanation:

100+14.75%

100+14=114

=114.75%

So, I see the other person did the problem, but I’m just going to detail it a bit more.

First step:

= 100 + (100/1 x 14.75/1)

Second step:

= 100 + 14.75

100.00
+ 14.75 Therefore, your answer is 114.75
—————
114.75

Determine whether each function is quadratic function by graph

F(x) = 1/2 x - 4

Answers

It is not a quadratic function

A researcher numbers each household in the city and uses a random number generator to select individual households for the sample. By chance, none of the households chosen were households of single millennials. This is an example of Answer

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A company's receipts gives a website where customers can fill out a survey to receive a coupon. This is an example of Answer

.
Your friend forgot she was supposed to conduct a poll of your high schools' students. She asks everyone in your homeroom if they think the school should have a new mascot. She presents the results to the student council. This is an example of Answer
undercoverage bias

Answers

1. The type of bias that the researcher would be making here based on the fact that the households were not that of single millennials is the sampling bias.

2. The voluntary response bias is the type of bias that is being done where the receipts of the website would be the bias that would occur from the company's website.

3. The under coverage bias is what would happen in this scenario given that the friend would not have to ask all of the persons that would be used for the study.

What is a research bias?

This is the term that is used to refer to the systematic error that would occur in research due to the researchers methods.

1. The answer is the sampling error due to the fact that the random generator was what was used. This would end up giving a sample that would not show the true representation of all of the population.

2. The voluntary response bias is what would be made here because those filling the form are doing it voluntarily.

3. The undercoverage bias is made here because the opinion of the entire school population is not well represented here.

Answers

To question 16, we see that for every change of plus 2 drinks, they pay an additional value of $2.50. It means that each drink does cost half of this value.

This way, the equation that will give the value of the total cost will be:

[tex]Y=1.25\times X[/tex]

Where X stands for the number of drinks, and 1.25 is the value of a single drink.

From the solution presented above, we are able to conclude that the rate of change represents the value of a unitary drink, in the present situation.

Hi can you help explain this question. I have trouble writing statement and reasons for this question please. I get lost.

Answers

For the given figure, we will prove the triangles BGH and BDH are congruent.

So, the proof will be as follows:

Statement Reason

1) m∠F = m∠FEG = m∠FGE Given

2) ΔFGE is an equilateral triangle from (1), the definition of an equilateral Δ

3) FG = GE from (2), the definition of equilateral Δ

4) FG = ED Given

5) m∠ GEH = m∠DEH Given

6) EH = EH Reflexive property

7) ΔGEH ≅ Δ DEH SAS postulate

8) GH = DH from (7) CPCTC

9) m∠GHE = m∠DHE from (7) CPCTC

10) m∠GHB = m∠DHB Definition of supplementary angles

11) HB = HB Reflexive property

12) ΔBGH ≅ ΔBDH SAS postualte

13) ΔAGB is an isosceles Δ Given

14)AG = AB Definition of isosceles Δ

15) ΔBCD is an isosceles Δ Given

16) CB = CD Definition of isosceles Δ

17) CB = AG Given

18) m∠CDB = m∠CBD Definition of isosceles Δ

19) m∠ABG = m∠AGB Definition of isosceles Δ

20) m∠CDB = m∠AGB Given

21) m∠ABG = m∠CBD Transitive property

22) Δ AGB ≅ ΔCBD AAS postualte

Find an equation of the line parallel to the graph of y = -5x-3 that passes throughthe point of (3,2). Write your equation in slope-intercept form.

Answers

Parallel lines has the same slope. In our case, the slope is -5. Then, the searched line has the form:

[tex]y=-5x+b[/tex]

where b is the y-intercept.

We can find b by substituting the given point (3,2) into the las equation. Then, we have

[tex]2=-5(3)+b[/tex]

which gives

[tex]\begin{gathered} 2=-15+b \\ 2+15=b \\ 17=b \end{gathered}[/tex]

Therefore, the parallel lines is given by

[tex]y=-5x+17[/tex]

13) Which of the following algebraic representations would result in a reduction dilation?A. (x,y) → x,y)C. (x,y) →x,0.75y)AnswerB. (x,y) → (-2x.-2y)D. (x,y) →x,y)acxiy) (tx, tyTriangles JKN and MKL are shown below.KMN14) Which of the following congruency statements is true about the two triangles?Angwer BA. L and ZN ZM B. ZNZL and ZK-ZK2N and CL areCongruentC. ZNZL and ZMD. UN and ZMZL Eck and Zk aze congruen15) Are triangles JKN and MKL similar?Yes16) If you answered YES for question 15, explain how you know they are similar. If you answered NO forquestion 15, explain how you know they are not similar.

Answers

16) We know that the triangles are similar because the three angles are equal in both triangles:

The angles in K are opposite by the vertex, so they are equal.

We also know that angles L and N are equal too.

By the rule of the sum of the angles in a triangle, we know that the third angle has to be equal.

Also, the side opposite to the angle N and L in each triangle have the same measure, so we can conclude that the triangles are similar.

Manuel was examining the product of 48 x 0.73. He realized that he could create other multiplication problems that have the same product. Select whether each expression has the same product as 48 x 0.73. 6.NS.3 No Yes 0 0 43 x 0.78 0 0 4.8 * 7.3 o 0,48 x 73 o 7.8 * 4.3 0 0 480 x 0.073 roto of 283 miles per hour. Nora walks at a rate of

Answers

We will solve as follows:

*First: We find out the value of the product:

[tex]48\cdot0.73=35.04[/tex]

Now, we find out from the other expressions:

*First:

[tex]43\cdot0.78=33.54[/tex]

[No]

*Second:

[tex]4.8\cdot7.3=35.04[/tex]

[Yes]

*Third:

[tex]0.48\cdot73=35.04[/tex]

[Yes]

*Fourth:

[tex]7.8\cdot4.3=33.54[/tex]

[No]

*Fifth:

[tex]480\cdot0.073=35.04[/tex]

[Yes]

pls help me super confused on inequality

Answers

40.50d - 400(0.12) ≤ 210

Solving ⬇️

40.50×d - 48 ≤ 210

40.50×d ≤ 210 + 48

40.50×d ≤ 258

d ≤ 258÷ 40.50

d ≤ 6.37

Drevae WashingtonExpected ValueMar 08, 1:24:47 PM?Scarlett volunteers on the weekend at the Central Library. As a school project, shedecides to record how many people visit the library, and where they go. On Saturday,429 people went to The Youth Wing, 382 people went to Social Issues, and 424 wentto Fiction and Literature.On Sunday, the library had 1100 total visitors. Based on what Scarlett had recordedon Saturday, about how many people should be expected to go to The Youth Wing?Round your answer to the nearest whole number.Answer:Submit Answerattempt 1 out of 2RIDeltaMath - Googl.W April Spirit WeekResume from vae..

Answers

SOLUTION

Given the question in the question tab, the following are the solution steps to answer the question.

STEP 1: Get the total number of visitors on saturday

[tex]382+429+424=1235[/tex]

STEP 2: Get the proportion/probability of the people who went to the Youth Wing on Saturday

[tex]\begin{gathered} \Rightarrow\frac{\text{number of Youth Wing}}{\text{Total number of visitors}} \\ \Rightarrow\frac{429}{1235}=0.347368421 \end{gathered}[/tex]

STEP 3: Get the expected number of people to visit the Youth Wing on Sunday

[tex]\begin{gathered} \text{Expected value}=\text{proportion}\times total\text{ number of visitors on Sunday} \\ \text{Expected Value=}0.347368421\times1100=382.1052632 \\ \text{Expected Value of people from Youth Wing }\approx382 \end{gathered}[/tex]

Hence, the expected number of people to visit the Youth Wing on Sunday is approximately 382 people

Let n =2 and z=4. Evaluate the following (8/n)n -✓z

Answers

[tex]\begin{gathered} (\frac{8}{n})^n-\sqrt[]{z} \\ \Rightarrow(\frac{8}{2})^2-\sqrt[]{4} \\ \Rightarrow4^2-2=14 \end{gathered}[/tex]

Which equations are true for x = –2 and x = 2? Select two options x2 – 4 = 0 x2 = –4 3x2 + 12 = 0 4x2 = 16 2(x – 2)2 = 0

Answers

The two equations that are true when x = -2 and x = 2 are x^2 - 4 = 0 and 4x^2 = 16.

We have given x = 2 and x = -2

Substitute the values in the given equations

Equation 1

x^2 - 4 = 0

Substitute x = 2 in LHS, we get

2^2-4 = 4 - 4 = 0 = RHS