It has been debated for years as to whether or not Descartes's Rule of Signs is helpful when working with Polynomial Functions. In your own words:


a) explain the purpose in using Descartes's Rule of Signs

b) state whether or not you think it is helpful or simply a waste of time, then explain your answer.

Answers

Answer 1
Answer:a I think it is

Related Questions

determine the common ratio for the geometric sequence 3, 4, 16/3​

Answers

Each number is approximately 1.33 times the size of the last one. The next number would be 7.09, then 9.43 etc.

Which shows a set of decimals ordered from least to greatest
A. 0.45 , 0.54 , 5.04
B. 0.54 , 0.45 5.04
C. 0.45 5.04 0.54
D. 0.54 , 5.04 0.45

Answers

Answer:

a. 0.45. , 0.54. , 5.04 is the answer

Answer:

a

Step-by-step explanation:

It's a because it starts with 0.45 (the least because if its just 45 than thats less than 54) and the greatest is 5.04 (you can think of them as 45, 54, and 504 but DON'T AVTUALLY DO THAT IN MATH).

parallelogram ABCD has the following vertices A(0,8) B(8,4) C(2,-8) D(-6,-4) is parallelogram ABCD a rectangle, and why

Answers

Answer:

Yes, because BC is perpendicular to AB, and ABCD is a parallelgram.

Yes the parallelogram is a rectangle.

What is distance formula?

The distance between coordinate P(x1 , y1) and coordinate Q(x2 , y2) is calculated using the distance formula: d = √[(x2 - x1)² + (y2 - y1)²]

Given:

ABCD is parallelogram, so its opposite sides are equal in length.

i.e., AB= CD and AD= BC

Now,

d=√(8−0)²+(4−8)

d=√(8)²+(−4)²

d=√64+16

d=√80

d=√(−6−2)²+(−4−(−8))²

d=√(−8)²+(4)²

d=√64+16

d=√80

so, AB = CD

Similarly, AD= BC = √180

Hence, a quadrilateral whose opposite side are equal called as rectangle.

Learn more about this concept here:

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2x + 4 = -8 X= ? Me need help .

Answers

So you subtract 4 and you get 2x=-12. Then divide by 2 and get x=-6. So -6 is the final. Can I get brainliest also please :)

Answer:

x = -6

Step-by-step explanation:

2x + 4 = -8

Subtract 4 from both sides, -8 - 4 is -12

2x = -12

Divide 2 from both sides

x = -6

62 is half of one lesss than the cube of a whole number. What is the number

Answers

Answer:

The answer is 5.

62 is half of 124

124 is one less than 125

The cube root of 125 is 5.

That is... 5 times 5 times 5 equals 125, since, 5 times 5 equals 25; and, 25 times 5 equals 125.

Hope this helps.

Step-by-step explanation:

8. Nineteen out of
twenty people are
born right-handed.
What is this ratio as a
decimal?

Answers

.95 because 19/20 multiply that by 5 to get 95/100 and 95 divided by 100 is 0.95

Which equation represents the graph on the right?

Answers

Answer:

y=2/3x+4

Step-by-step explanation:

3. slope is -2/3x and b is 4

oskjdkeowjbsndkwowjhdnekowu

Answers

Answer:

heifefhdhduhvndbaiuhdlfd

Step-by-step explanation:

speed limit signs are placed every 5/8 mi on the highway. how many signs are there on a 75 mi strech of highway?

Answers

Answer:

46

Step-by-step explanation:

the answer is 46.875, but you always round down for these types of problems

The cost of a monthly cell phone plan is represented by the expression 0.35m+55, where mis
the number of text messages sent.

What could the 55 represent?

Answers

It might be the amount of times they pay a year?

The town of Springville is mapped on a coordinate grid with
the origin being at City Hall. John's house is located at the
point (-5, 7) and Bill's house is located at (-2,3). How far is it
from John's house to Billy's house?

Answers

Answer:

The distance from John's house to Bill's house is 5 units

Step-by-step explanation:

John's house is located at the point (-5,7) and Bill's house is located at (-2,3) in a map of the town of Springville.

We need to find the distance from John's house to Bill's house. We use the formula of the distance between two points:

Given two points A(x,y) and B(w,z), the distance between them is:

[tex]d=\sqrt{(w-x)^2+(z-y)^2}[/tex]

Applying the formula:

[tex]d=\sqrt{(-2+5)^2+(3-7)^2}[/tex]

[tex]d=\sqrt{3^2+4^2}[/tex]

[tex]d=\sqrt{9+16}=\sqrt{25}[/tex]

d=5

The distance from John's house to Bill's house is 5 units

Samuel orders four DVDs from an online music store. Each DVD costs $9.73. He has a 25% discount code, and sales tax is 7%. Round sales tax amounts to the nearest cent. What is the total cost of his order?

The total cost of Samuel's order is $
.

Answers

Answer:

$20.43

Step-by-step explanation:

A man earned wages of $36,300, received $2200 in interest from a savings account, and contributed $2700 to a tax-deferred retirement plan. He was entitled to a personal exemption of $4050 and a standard deduction of S6300. The interest on his home mortgage was $7800, he contributed $2900 to charity, and he paid $1750 in

state taxes. Find his gross income, adjusted gross income, and taxable income Base the taxable income on the greater of a standard deduction or an itemized

deduction

Answers

Answer:

Gross income = $38500

Adjusted gross income = $35800

Taxable income = $13000

Step-by-step explanation:

1. Gross income = wages + interest received

Gross income = $36,300 + $2200

Gross income = $38500

2. Adjusted gross income = Gross income - adjustments

Adjusted gross income = $38500 - $2700

Adjusted gross income = $35800

3. Taxable income = adjusted income - (exemption + deductions)

Taxable income = $35800 - ($4050 + $6300 + $7800 + $2900 + $1750)

Taxable income = $35800 - $22800

Taxable income = $13000

A student has started a lawn care business. He charges $15 per hour to mow lawns and $20 per
hour for gardening. Because he is still in school, he is only allowed to work for at most 20 hours per
week. His goal is to make at least $300 per week.
1. Create a system of equations or inequalities that models the situation. Define the variable you use

Answers

Answer:

15x20/300

Step-by-step explanation:

you multiply 15 and 20 then didvide that answer to 300

These are the  points (20,0), (0,20), (20,5) are a few points which represent the number of hours a student can work each job to meet his goal.

Let ;

The hour spent in mow lawns is represent by x,

And represent the hour spent for gardening by y.

According to the question;

He charges $15 per hour to work mow lawns .

And $20 per  hour to gardening .

Total no. of hours allowed to work = 20 hours per week

Then the inequality to represent the cost constraint will be,

15x+20y ≥ 300

Since,

He cannot work for more than 15 hours per week, the inequality to represent the time constraint will be,

x + y ≤ 20

On solving the inequalities,

15(20-y) + 20y = 300

300 - 15y + 20y = 300

5y= 0

y = 0

For value of x put y = 0

x + 0 = 20

It states if he work only in mows law for 20 hours he can earn $15 =(15)(20) =$300

All pairs of positive numbers whose sum is less than 20, are solutions to the given system of inequalities.

A pair of negative numbers will also solve both constraints, but is not applicable in this situation because a student, cannot work for negative hours, or  for a negative amount of money.

So, (20,0), (0,20), (20,5) are a few points which represent the number of hours a student can work each job to meet his goal.

For more information about system of inequalities click the link given below.

https://brainly.in/question/32858820

estimate 34% of 59

a) 15
b) 17.7
c) 20
d) 20.06

i really need this like, right now i’m giving a bunch of points please help meeee!

Answers

the exact answer is 20.06 but the estimate is 20

Answer:

option D)20.06

hope it helps

please mark Brainliest

Tim paid 216.14, tax included, for a stereo system. If he paid $17.39 in sales tax, what percent sales tax did Tim pay?

Answers

Answer:

about 8 percent in sales tax



PLEASE HELP ASAP WILL GIVE BRAINLISET ANSWER TO FIRST

Answers

Answer: I say 12.5 miles

Step-by-step explanation:

help pls i’ll give brainlest if it’s correct .

Answers

Answer:

its groups

i hope this helps study hard

Find the inverse of the function y = 2x2 + 2.

]

Answers

Answer:

-y = -2x^2 -2.........................................

Answer:

[tex]y=+/-\sqrt{\frac{1}{2} x-1}[/tex]

Step-by-step explanation:

Edge2020

Convert 26.7% to an
equivalent decimal.​

Answers

Answer: 26.7

First, you must remove the percentage sign, then you will get a equivalent decimal.

When we remove the % sign, we get 26.7.

The answer is 26.7. Hope this helps!

It is found that 26.7% as an equivalent decimal is 0.267.

LEt the value of which a thing is expressed in percentage is "a' so the percent that considered thing is of "a" is b%

However percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

To convert 26.7% to an equivalent decimal, we simply divide it by 100:

26.7% ÷ 100

26.7/ 100 x 100 = 0.267

Therefore, WE can conclude that 26.7% as an equivalent decimal is 0.267.

Learn more about percent here:

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A triangle has the given vertices. Classify the triangle by its sides. Then determine if it is a right
triangle.
A(-4,4), B(0,1), C(-4,-2)

Answers

Answer:

c

Step-by-step explanation:

im passed the assgnment

NEED HELP WITH MATH! Will Give brainliest! Picture of problem is below

Answers

Answer:

when the leading coefficient is negative it will affect the right and left side to also be negative

Step-by-step explanation:

Solve for x:
6 + x = 6(1 + 7x)​

Answers

The answer is: 0

Hope it helps!!!!!!

plz answer!!!! Ill give brainly to first RIGHT person!!!!!

Answers

Answer:

D

Step-by-step explanation:

If it was 2/4, percent is 50% greater than 0, but less than 100

2/4 decimal 0.5 between 0 and 1

Karie's dog weighs 18 pounds. How many ounces does the dog weigh?

Answers

Answer:

288 ounces

Step-by-step explanation:

Answer:

288 oz.

Step-by-step explanation:

According to Google.. I hope this helps you. Have a wonderful day/night. :3

solve the following problem.

1. A leaking faucet waste about 3 liters of water a day. How many liters of water can be saved daily if 500 leaking faucets are repaired?

2. The quotient is 25 and the divisor is 14. the dividend is 353. I am the remainder what number am I?

3. Isaiah had 63 apples. He divided all apples evenly among his 9 friends. How many apples did Isaiah give to each of his friends?

4. Nancy needs 5 oranges to make a glass of orange juice. If Nancy 250 oranges, how many glasses of orange juice can she make?​

Answers

Answer:

1) 1500 litres

2)Remainder = 3

3)7 apples

4)50 glasses

Step-by-step explanation:

1) We are told that a leaking faucet wastes about 3 liters of water per day.

Now, if 500 faucets are repaired, it means total number of litres saved per day = 500 × 3 = 1500 litres

2) We are told that the quotient is 25 and the divisor is 14. the dividend is 353.

Now, the quotient multiplied by the divisor should give us the dividend. Otherwise, we subtract the value we get from the dividend to get the remainder.

Thus:

Quotient × divisor = 25 × 14 = 350

This is not equal to the dividend.

Thus the remainder is;

353 - 350 = 3

Remainder = 3

3) We are told Isaiah had 63 apples.

If he divided the 63 apples among his 9 friends evenly, it means the number of apples received by each of his friends is gotten by Dividing the total number of apples by the number of friends. This gives; 63/9 = 7 apples

4) We are told Nancy needs 5 oranges to make a glass of orange juice.

Now, Nancy has 250 oranges. This means that the number of glasses of orange juice she can make is; 250/5 = 50 glasses

Fill in the blank. The critical value tα/2 that corresponds to a​ ________% confidence level with 1000 degrees of freedom is 2.33.

Answers

Answer:

The critical value tα/2 that corresponds to a​ 98% confidence level with 1000 degrees of freedom is 2.33.

Step-by-step explanation:

From the question we are told that

   The critical value is  [tex]t_{\frac{\alpha }{2} } = 2.33[/tex]

From the student's t distribution table the probability of     [tex]( t > 2.33)[/tex] at a degree of freedom of  1000 is  

        [tex]\frac{\alpha }{2} = (t > 2.33 ) = 0.01[/tex]

Hence the level of significance is mathematically evaluated as

        [tex]\alpha = 2 * 0.01[/tex]

=>    [tex]\alpha = 0.02[/tex]

Generally the confidence level  is mathematically represented as

      [tex]C = 1- \alpha[/tex]

=>  [tex]C = 1- 0.02[/tex]

=>  [tex]C = 0.98[/tex]

Converting to  percentage

=>  [tex]C = 0.98 * 100[/tex]  

=>  [tex]C = 98\%[/tex]  

Does this graph represent a function? Why or why not? A. No, because it is not a curve. B. No, because it fails the vertical line test. C. Yes, because it passes the vertical line test. D. Yes, because it has two straight lines.

Answers

Answer:

I think it is because it passes the vertical line test. or b

Step-by-step explanation:

HELPPP ITS DUE AT 2:30 PACIFIC TIME !!!
i need help with 6 and 10

Answers

6 is 102 because both angles are the same

Help please he sure that you are correct find the coordinates that’s it tysm will mark brainiest

Answers

Answer:

(1, 0)

Step-by-step explanation:

1/3 means rise over run. Up one is Y=0, three over is +1 for the x coordinate.

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