Find the number of solutions of the equation 9x^2+x+1=0 by using the

Answers

Answer 1

Answer:

x =(2+√40)/18=(1+√ 10 )/9= 0.462

or:

 x =(2-√40)/18=(1-√ 10 )/9= -0.240


Related Questions



Min50 , Q1 62, median 84, Q3 96, Max 99

Using the interquartile range, which of the following are outliers? Select all correct answers.

Select all that apply:
3
6
21
60

Answers

Answer:

3 and 6

Step-by-step explanation:

IQR = Q3-Q1=96-62=34

Lower Outlier = Q1 - 1.5*IQR = 62 - 1.5*34 = 11

Any Value under 11 is Considered as Outlier

Then 3 and 6 are Outliers

Upper Outlier = Q3 + 1.5*IQR = 96 + 1.5*34 = 147

Any Value Above 147 is Considered as Outlier

There is no Value above 147

The Only Outliers are 3 and 6

Solve for x.

[tex] \: \: \: [/tex]
[tex] \: \: \: \: \: [/tex]

Answers

x = 50°

Step-by-step explanation:

In the figure,

145° and 3x - 5 are vertically opposite angles which are equal, so

=> 3x - 5 = 145°

=> 3x = 145 + 5

=> 3x = 150°

=> x = 150°/3

=> x = 50°

Hope it helps you!!

Answer:

x = 50

explanation:

vertically opposite angles are of equal measure.

solve:

3x - 5 = 145

3x = 145 + 5

3x = 150

x = 50

Which algebraic property is used to rewrite 2(x + 3) as 2x + 6? (1 point)

Answers

Answer:

The distributive property

Step-by-step explanation:

2 is being used to multiply both terms (x and 3)

Hope this helps!

Answer:

Distributive property

Step-by-step explanation:

Distributive property: a*(b + c) =(a*b) + (a*c)

2(x + 3) =2*x + 2*3

            =2x + 6

A promissory note for $3600.00 dated May 15, 2012, requires an interest payment of $370.00 at maturity. If interest is at 9.6% compounded monthly, determine the due date of the note. (hint: find n then convert it into days and use excel sheet to add it to issue date)

In the box below show these parameters:

PV=....., FV=.....

Answers

The due date of the promissory note is May 24th 2013.

Data;

Present Value (PV) = $3600Interest = $370Future Value (FV) = PV + I = $3600 + $370 = $3970

Due Date of the Note

To calculate the due date of the note, we can use the formula of future value of the note.

[tex]FV = PV (1 + \frac{r}{n})^d\\ 3970 = 3600 (1 + \frac{9.6}{12})^d\\3970 = 3600(1+0.008)^d\\\frac{3970}{3600} =(1.008)^n[/tex]

Let's take the natural log of both sides

[tex](1.008)^n = (\frac{3970}{3600})\\ n\ln(1.008) = \ln(\frac{397}{360})\\ n = 12.28[/tex]

This is approximately 12 months and 9 days.

The due date of the promissory note is May 24th 2013.

Learn more on promissory note here;

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Write the equation which is the sum of the three numbers y, y l and y 2.

Answers

Answer:

3y + 3 or 3(y+1)

Step-by-step explanation:

y + y + 1 + y + 2

= 3y + 3

= 3(y+1)

Find the product of -8y^2(2y^2+7y-5) PLEASE HELP

Answers

The answer is -16y^4 - 56y^3 + 40y^2

write as many mathematical expressions or equations as you can about the image include a fraction, a decimal number, or a percentage in each.
Fundraiser
our Goal
250,000

Answers

Answer:

110/250

Step-by-step explanation:

If the fraction goal is 250 then put the 250 as the denomanator and the 110 as the top common denomanator.

Percentage of funds raised is 44 % , Fraction of funds raised is (11/25) and Fraction of funds raised in decimal form is 0.44.

What is Percentage?

To find the % of a number, divide it by its value, then multiply the result by 100. Percentage is a relative value that denotes one tenth of any quantity. As one percent (symbolised as 1%) is equal to one tenth of anything, 100 percent stands for everything, while 200 percent refers to double the amount specified.

As per the given data:

In the diagram given, we can find the total amount of funds to be raised and the amount of fund which is raised currently.

Total amount to be raised = $250,000

Amount already raised = $110,000

Percentage of funds raised = (110,000/250,000) × 100 = 44 %

Fraction of funds raised = (110,000/250,000) = (11/25)

Fraction of funds raised in decimal form = 0.44

Hence, Percentage of funds raised is 44 % , Fraction of funds raised is (11/25) and Fraction of funds raised in decimal form is 0.44

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(The question is incomplete, the complete question is given below.)

please help worth a lot

Answers

Answer:

(-2, -3)

Step-by-step explanation:

when its relected its just flipping over the horizontal axis (x-axis) so in turn that is the answer! :) hope this helped you

What is the name of our number system?

Answers

decimal system is the name of our number system.

Answer:

Our Number System is Hindu Arabic Number System.

The digits are: 0,1,2,3,4,5,6,7,8,9

Consider the line y=9x-5. Find the equation of the line that is perpendicular to that line and passes through the point (-3,-3)

Answers

Answer:

y=(-1/9)x-(10/3)

Step-by-step explanation:

Since the line is perpendicular to y=9x-5, the slope of that line would be the opposite of the reciprocal of the original slope value. In this case, the slope of the line would be -1/9. So we have y=(-1/9)x+? Since we know a point, (-3, -3), we can input this back into our original equation and we have: -3=(1/3)+? We simplify and we have ?=-10/3. Therefore the final equation of the line that is perpendicular to that line and passes through the point (-3,-3) is y=(-1/9)x-(10/3).  

A regular octagon has an apothem of approximately 3.5 cm and a perimeter of approximately 23.2 cm.
Find the area of the octagon.

Answers

Answer:

81.2 cm

Step-by-step explanation:

i need help with this question

Answers

Answer:

60

Step-by-step explanation:

10x = (21x - 3)/2

20x = 21x - 3

x = 3

measure of arc HF = 21x - 3 = 21(3) - 3 = 60


Which segments are perpendicular to
CD.

Answers

Answer:

GF where G is at (6,5) and F is at (10,2)

Step-by-step Explanation:

Perpendicular lines always have the negative reciprocal as the other line as their slope. This is such that (1/3) × (-3/1) = -1, so -3/1 is the negative reciprocal to 1/3.

This means we are looking for a line with the slope -3/4, and we can find the slopes by using the formula (y2 - y1)/(x2 - x1).

For the first option, LM, we get (9 - 3)/(-10 - 2) = 6/-12 = -1/2, so it is not this.

For the second option, GF, we get (2 - 5)/(10 - 6) = -3/4, which is the slope we were looking for. This means that the second option is our answer.

I hope this helps!

Translate the sentence into an inequality.
The sum of six times a number and five is greater than the difference of three times a number and two.

Answers

3 (n + 5) >/= -6
3 n + 15 >/= -6
n + 5 >/= -2
n >/= -7 not sure if your using this for a test/quiz? Because I don’t have anything to go off of so if this isn’t what your looking for give me more of a description


Saraid is dividing 1/4 pound of cashews into 5 plastic bags. What
fraction of a pound of cashews will be in each plastic bag?
Draw a model to help you solve.
(Please draw a model )

Answers

Answer: 20 Pounds

Step-by-step explanation:

1/4 X 5 = 1/20 then reverse it

20/1 = 20 Pounds

(may not be correct!!!)

Find the surface area of a triangular prism

Answers

Answer:

The formula that is used to calculate the surface area of a triangular prism is, Surface area = (Perimeter of the base × Length of the prism) + (2 × Base Area) = (S1 + S2+ S3)L + bh; where 'b' is the bottom edge of the base triangle, 'h' is the height of the base triangle, L is the length of the prism and S1, S2 and S3 are the edges of the base triangle.

the smiths spend 11% of their budget on entertainment. their total budget this year is $1,000 more than last year, and this year they plan to spend $4,620 on entertainment. what was their total budget last year?

Answers

Answer: $41000 Was the Smiths family budget last year.

Step-by-step explanation:

First you take $4620 and DIVIDE it by .11 you will get $42000 and since last year had $1000 less to spend you subtract $1000 from $42000 to get $41000 for the budget last year.

The bike store marks up the wholesale cost of all of the bikes they sell by 30%.

Andre wants to buy a bike that has a price tag of $125. What was the wholesale cost of this bike?

The wholesale price was $

Answers

( 10 / 13 ) * 125 = original price

( 10 / 13 ) * 125 = 96.15

A number is greater than or equal to three times another number. what are the numbers?

Answers

Answer:

THE AWNSWER IS A≥3B

Step-by-step explanation:

A≥3B

Explain why knowledge of statistics is important.

Answers

Answer:

Statistical knowledge helps you use the proper methods to collect the data, employ the correct analyses, and effectively present the results. Statistics is a crucial process behind how we make discoveries in science, make decisions based on data, and make predictions.

A triangle has side lengths of 54, 72 & 90. Is it a right triangle? Explain.
No, there always has to be an odd number for it to work out to be a right triangle.
No, it is obtuse.
No, it is acute.
Yes, the Pythagorean Theorem works out to be equal.
Yes, because 52 + 72 > 90.

Answers

Answer: C: Yes, the Pythagorean Theorem works out to be equal.

Step-by-step explanation:

to test if a triangle is right angled or not, just use the Pythagorean Theorem:

a²+b²=c², where a and b are the two shorter sides of the triangle, and c is the longest side.

plugging this in:

54²+72² ?= 90²

2916 + 5184 ?= 8100

8100 = 8100

Yes! Its correct, so we know that this triangle is a right triangle. the justification is C: Yes, the Pythagorean Theorem works out to be equal.

3. Consider the straight line x + y = 1 and the family of straight lines that pass
through the origin given by y = mx. As m changes the line rotates about the
origin. Solve these two systems of linear equation and find their points of inter-
section. Is there always a solution - If yes, briefly explain why. If not - for what
a
values of m is there no solution.

Answers

Answer:

solution: (1/(1+m), m/(1+m))no solution for m = -1 (lines are parallel)

Step-by-step explanation:

Two distinct lines will always have a point of intersection, provided they are not parallel. That is, the system of equations {x +y = 1, y = mx} will have a unique solution as long as m ≠ -1.

The solution to the system can be found by substitution:

  x +mx = 1

  x(1 +m) = 1 . . . . factor out x

  x = 1/(1+m) . . . . . divide by the coefficient of x; we must have m ≠ -1

  y = m/(1+m) . . . . find the y-coordinate of the solution

The point of intersection is (1/(1+m), m/(1+m)).

__

The above solution is undefined when the denominator is zero: m = -1. There is no solution for m = -1.

Find the area of the polygon

Answers

Answer:

Area of a regular polygon formulas

Step-by-step explanation:

area = n * a * ri / 2 , having ri - incircle radius (it's also an apothem - a line segment from the center to the midpoint of one of its sides)

area = perimeter * ri / 2 , given ri and polygon perimeter.

area = n * (ri)² * tan(π/n) , given ri.

What is the solution to 4(y–3)+19=8(2y+3)+7 ? A. −12 B. 12 C. −2 D. 2

Answers

Answer:

C. -2

Step-by-step explanation:

4(y–3)+19=8(2y+3)+7

4y-12+19=16y+24+7

4y+7=16y+31

-12y=24

12y=-24

y=-2

Answer:

4(y-3)+19=8(2y+3)+7

4y -12 +19=16y+24+7...

-12+19-24-7=16y-4y

-24=12y÷12

-2=y...

•. • C.-2...

if the sides of a triangle QRS are QR=10X-6, RS=6X-15,QS=X+24, find a range of possible values for X?​

Answers

X+44 or change ur equations to a better understanding

The range of the possible values for X will be;

⇒ X < 5

What is mean by Triangle?

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

The sides of a triangle QRS are;

⇒ QR=10X - 6,

⇒ RS = 6X - 15,

⇒ QS = X + 24,

Now,

We know that;

The sum of two sides of a triangle is always greater than the third side.

So, We can formulate;

⇒ 10X - 6 < (6X - 15) + (X + 24)

⇒ 10X - 6 < 7X + 9

⇒ 10X - 7X < 9 + 6

⇒ 3X < 15

⇒ X < 5

Thus, The range of the possible values for X will be;

⇒ X < 5

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If b-10 = 5, what is the value of b-6?

Answers

The answer is 21. Hope this Helps!

The difference between 2.4 and a number is 1.61, as shown below. What number should go in the box to complete the subtraction problem?

Answers

Answer:

4.37

Step-by-step explanation:

23.8+ 4.37= 28.17

How many different 4 letter passwords can be created if the letters can be
repeated?

Answers

Answer:358800

Number of dispositions of 4 letters without repetitions of the alphabet (26 letters): 26*25*24*23=358800

Step-by-step explanation:

Can i have help with i cant figure this out​

Answers

Answer:

The circumference of a circle with radius 48 is 301.6(*)

Step-by-step explanation:

Formulas:

d = 96C = 302C = 2·π·r C = π·d C = √4·π·A π = 3.1415A = area of the circleC = circumference or perimeterr = radius, d = diameter

Step-by-step Solution:

Circumference of a cicle in terms of radius:Circumference = 2·π·r = 2·3.14·48 = 301.58(*)In terms of diameter:Circumference = π·d = 3.14·96 = 301.44(*)In terms of area:Circumference C = √4·π·A = √4·π·7238 = 301.58(*)

(*) 301.6 cm exactly or limited to de precision of this calculator (13 decimal places).

Note: for simplicity, the operations above were rounded to 2 decimal places and π was rounded to 3.14.

A circumference of 301.6 centimeters is equal to:

0.003016 kilometers (km)3.016 meters (m)3016 millimeters (mm)0.00187406 miles (mi)3.29834 yards (yd)9.89501 feet (ft)118.74 inches (in)

Answer:

301.6

Step-by-step explanation:

circumference = πD

Diameter = r x 2

diameter = 48 x 2 = 96

96 x π = 301.592895

301.6 to 1dp

If you need further help, let me know!

- profparis

How much of a premium do you pay for a steel house worth $190,000 with $49,000 worth of content in a suburban area?

A. $1258.70
B. $1372.70
C. $1589.90
D. $2304.70

Answers

Answer:

D. $2304.70

Step-by-step explanation:

a typical 2000 square foot house may cost anything from $200000 to $300000

Hope it helps!!!brainliest pls!!!!

Step-by-step explanation:

How much of a premium do you pay for a steel house worth $190,000 with $49,000 worth of content in a suburban area?

B. $1372.70

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