What are the real zeroes

What Are The Real Zeroes

Answers

Answer 1

You have to plug the values in the expression and see if it returns zero.

The only points where the function evaluates to zero are [tex] x=\pm 3[/tex] and [tex]x=6[/tex]

Answer 2
ANSWER

B. -3,3,-6

EXPLANATION

We equate the given polynomial to zero.

[tex] {x}^{3} + 6 {x}^{2} - 9x - 54 = 0[/tex]

Factor by grouping;

[tex] {x}^{2} (x + 6) - 9(x + 6) = 0[/tex]

Factor further;

[tex]( {x}^{2} - 9)(x + 6) = 0[/tex]

Either

[tex] {x}^{2} - 9 = 0 \: or \: x + 6 = 0[/tex]

[tex] {x}^{2} = 9 \: or \: x = - 6[/tex]

[tex]x = \pm \sqrt{9} \: or \: x = - 6[/tex]

[tex]x = \pm 3 \: or \: x = - 6[/tex]

The zeroes are

x=3,-3,-6

Related Questions

Write the following as algebraic expressions:

On each of n plates there are k apples and m pears. What is the total number of fruit are there on these plates?

PLEASE HELP!

50 points!

Answers

Total fruit = (m+k)n

Explanation:

To find the number of fruit on one plate, we add together the number of apples and pears. Next to find the total number of fruit on n plates, we can multiply (m+k) by n.

Hope this helps :)

This set of 3 number are measured of a right triangle 91 41 40

Answers

Answer:

False

Step-by-step explanation:

The measures of a right-angle are;

45°,45°,90° (45° right triangle)30°, 60°, 90° (30°- 60° right triangle)

A right triangle has a 90° angle and two acute angles and the sum of angles should add up to 180°. The leg angles could be  45 to form an  °isosceles triangle.

What is the vertex of the quadratic function with a negative a value?

A) (2, 3)

B) (3, 2)

C) (-4, -4)

D) (-1, -0.5)

Answers

Answer:

C) (-4, -4)

Step-by-step explanation:

If y = ax² + bx + c has negative value of a, then a parabola is open down.

Look at the picture.

Vertex  = (-4, -4)

Answer:

C)   (-4, -4)

Step-by-step explanation:

each squuare on the grid paper is 1 square in find the area of the figure​

Answers

Answer:

Count up however many squares are in the grip paper, and if it's not all the way full call it 1/2. Then add your half squares together, then add your whole squares to your half squares

Step-by-step explanation:

The graph of f(x) is shown. What is the value of f (x) when x= -2?

Please explain this question to me because i really dont understand it and id like to learn.​

Answers

C. 3.5
You have to go to -2 on the “X axis” and find the corresponding “Y” value on the line.

which table represents a linear function​

Answers

Table 3 is the correct answer

Answer:

option C

Step-by-step explanation:

Given table is a linear function when the change in y to change is x is a constant.

From the tables, difference of x is a constant 1

Lets look at the difference of y values

First table

We find the change in y values

[tex]-6+2=-4[/tex]

[tex]-2+6=+4[/tex]

the difference is not a constant. So it is not a linear

Second table

[tex]-5+2=3[/tex]

[tex]-9+5= 4[/tex]

the difference is not a constant. So it is not a linear

Third table

[tex]-10+2= -8[/tex]

[tex]-18+10=-8[/tex]

[tex]-26+18= -8[/tex]

the difference is a constant. So it is a linear function.

Find the value of x. The diagram is not to scale.

Answers

Answer:

x = 33

Step-by-step explanation:

There are 180 degrees in a triangle.

There are also 180 degrees in a straight line.

180 - 105 = 75.

Thus, 75+72+x=180.

x=33

Answer:

x=33

Step-by-step explanation:

Step one :

From the screen shot

The sum of angles on a straight line is 180° hence 180°-105°=75°

The unknown angle is 75°

Step two :

To find the angle x° the sum of angles in a triangle is 180°

Therefore

x°+72°+75°=180°

x+147=180

x=180-147

x=33°

If AD equals 3X +3 CD equals X +9, what is the value of X?

Answers

Answer:

x=3

Step-by-step explanation:

2x+3=9

2x=6

x=3

The area of a rectangle is 48 square feet. The length is 8 feet longer than the width. 1) Which picture corresponds to the problem? 2) What are the dimensions of the rectangle?

Answers

Answer:

1) The picture whose width = x and Length = (x + 8) feet

2) Width = 4 feet

   Length = 12 feet

Step-by-step explanation:

A rectangle has one side longer than the other.

Area of a rectangle = product of its sides.

                                  = length × width

Width = x feet

Length = (x + 8) feet

Area = 48

∴ x × (x + 8) = 48

   x² + 8x = 48

  x² + 8x + 4² = 48 + 4²

  (x + 4)² = 64

 x + 4 = √64

x = ±8 - 4

x = - 12        or x = 4

     Since length can not be negative, x = 4

∴ Width = 4 feet

   Length =4 + 8 = 12 feet

Final answer:

The dimensions of the rectangle where its area is 48 square feet and length is 8 feet more than width is 4 feet (width) and 12 feet (length). The question is set on algebra, calculation of area and understanding of shapes.

Explanation:

This problem falls under the category of algebra and involves understanding the concept of shapes, particularly rectangles, and calculation of their area.

We know, the area of a rectangle is calculated as the product of its length and width. Given that the area is 48 square feet and the length is 8 feet more than the width. Let's denote the width as 'w' and the length as 'w + 8'.

So, we can set up the equation as: w * (w + 8) = 48. Solving this quadratic equation will give us the values for 'w' and 'w + 8' or the dimensions of the rectangle.

If you factor the quadratic equation, you get (w - 4)(w + 12) = 0. Setting these factors to zero, we find that w = 4 or w = -12. Since width cannot be negative, the width is 4 feet. And the length, which is 8 feet more than the width, will be 4 + 8 = 12 feet.

For the picture representation, simply imagine or draw a rectangle. Label the shorter side as 4 feet (width) and longer side (length) as 12 feet.

Learn more about Area of Rectangle here:

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What are the factors of x2 − 25?

(x − 5)(x − 5)
(x + 5)(x − 5)
(x − 1)(x + 25)
Prime

Answers

Answer:

)x + 5)(x - 5)

Step-by-step explanation:

x² - 25 ← is a difference of squares and factors in general as

a² - b² = (a + b)(a - b), thus

x² - 25 = x² - 5² = (x + 5)(x - 5)

A population of 550 rabbits is increasing by 7.5% each year. In about how many years will the population be over 1000?
A.) 9 years
B.) 5 years
C.)7 years
D.)15 years

Answers

Answer:

D.) 15 years

Step-by-step explanation:

7.5% of 550 rabbits would be 41.25

if you are increasing till you get over 1,000

it would take 10.9 almost 11 years to get to 1,000

meaning it would be 15 years when your over 1,000 giving you 1,168.75

What is the slope of the line show below?

Answers

Algebra form: y1 - y2, and x1 - x2.

( 2 - 1 ) ( 6 - 3 ).

= 1/3.

slope = 1/3.

The average number of accidents is 3 per month, what is the probability of 1 accident?

Answers

Hello!

The answer is: 33.33%

Why?

Since we have the average number of accidents that occurs in 1 month, and it's equal to 3, we can calculate the probability of 1 accident occurs by dividing it into the average number of accidents, using the following formula:

[tex]Probability=\frac{FavorableOutcomes}{Outcomes}*100[/tex]

Where,

Favorable outcomes are the occurrence of the event, for this case, it's equal to 1.

Outcomes are the possible occurrence of the event, for this case, it's equal to 3.

So, by substituting we have:

[tex]Probability=\frac{1}{3}*100[/tex]

[tex]Probability=0.3333*100=33.33[/tex]

So, the probability will be equal to 33.33%

Have a nice day!

x+2y=6 how do I solve this ?​

Answers

Answer:

The answer is 4y

Step-by-step explanation:

This is because when you have a variable and 2 numbers you work backwards to find the number of the x so you do the opposite of adding you subtract,  2 - 6 remember you are working backwards but now you have the answer 4 but there is a variable next to the two so you so you add that to the four.

Which statement above is true about the value of x

Answers

♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫

Angles in a triangle equal 180 degrees

180 - (38 + 39) = 103

Angles on a straight line equal 180 degrees

180 - 103 = 77

The correct statement would be the first one as x is greater than 38

Hope This Helps You!

Good Luck (:

Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ

HELP PLSSSS ASAP!!!

Answers

The tenth in 149.95 is 9. To round it to the nearest tenth, use the hundredth. The hundredth is 5. When rounding, always round up when it is a 5. 95 should be rounded to 100, but it is a decimal. 100 as a decimal is equal to 1. 149 + 1 = 150.

Answer:

149.95 becomes 150 when rounded to the nearest tenth because 149.95 is only .5 away from 150. If it was something like 149.4 it would be rounded to 149.

Which of the following equations represents a line that is parallel

Answers

Answer:

B

Step-by-step explanation:

A parallel line means equal m values, so the slope of the equation has to be 3.

Then, we can plug in the (1,6) to each of the equations with 3 as a slope and see if they are equal to each other.

B. 6 = 3 + 3

B. 6 = 6

So B is the correct equation.

What is the distance between -13 and 13 on a number line

Answers

Answer:

26 units

Step-by-step explanation:

Due to:

in the rect line, left to zero = 13 (absolute value)

in the rect line, right to zero = 13 (absolute value)

So the sum of each absolute value is the distance.

Best regards

If you mean absolute value, it is 13. If you are talking about distance, it is 26. -13 to 0 is 13. (-13 + 13 = 0) Then, you add 13 again, to get from 0 to 13. (0 + 13 = 13.)

need help with this...



Answers

Answer:

asfvbrgterwgwertbewgrq3geqgrewrgergergfergewrg

Step-by-step explanation:

how do you locate fraction 4/1 on a number line

Answers

Answer:

Move 4 units to the right-hand side of the origin point, 0.

Step-by-step explanation:

A number line in mathematics is a straight line marked with numbers to the left(negative numbers) and to the right (positive numbers), at equal intervals along the line.The origin of the number line is 0. 4/1 is similar to positive 4 which is located 4 units to the right-handside of 0.

Final answer:

To locate the fraction 4/1 on a number line, you need to divide the number line into 1 part and find the 4th part.

Explanation:

To locate the fraction 4/1 on a number line, you need to understand that fractions represent a part of a whole. In this case, the fraction 4/1 means that you are dividing the number line into 1 part and looking for the position of the 4th part. Here's how you can do it:

Draw a number line with appropriate markings, such as whole numbers.Divide the number line into equal parts based on the denominator of the fraction. In this case, since the denominator is 1, you don't need to divide further, as every part is the same size.Locate the numerator on the number line. In this case, 4 is equivalent to four parts of the whole number line.Mark the location of 4 on the number line.

I REALLY NEED HELP!! PLEASE DO IT FAST!!

8,000÷(28x+4)−15=25

Answers

Answer:

x = 7

Step-by-step explanation:

Order of operations rules require that we do multiplication and division BEFORE addition and subtraction.

Let's start by simplifying the expression.  Adding 15 to both sides results in:

8,000÷(28x+4) = 40.

Multiplying both sides by (28x + 4) results in the simpler:

8000 = 40(28x + 4).

Dividing both sides by 40 results in:

200 = 28x + 4, or

196 = 28x

Solve for x by dividing both sides by 28:

x = 7

A bag contains 6 red balls, 4 green balls, and 3 blue balls. If we choose a ball, then another ball without putting the first one back in the bag, what is the probability that the first ball will be green and the second will be red?

Answers

Answer:

2/13

Step-by-step explanation:

There are 6 + 4 + 3 = 13 balls all together.

If the first one is green, this will happen with a probability of 4/13. Now there are 12 balls left

There are 6 red balls. 6/12 = 1/2

The probability of the way this happens is 1/2 * 4/13 = 2/13

The gym teacher wants to know how many students play a sport. She asks 20 students throughout the day. What is the population?

Answers

Final Answer:

The population is the total number of students in the school.

Explanation:

The gym teacher's inquiry regarding the number of students playing a sport pertains to a subset of the larger student body. In statistical terms, the 20 students she questioned represent a sample.

The population, in this context, encapsulates the entirety of students attending the school, irrespective of whether they were asked about their sports participation or not.

When the gym teacher approached 20 students throughout the day, she was essentially drawing information from a limited group within the school. The population, however, extends beyond these 20 individuals to encompass every student enrolled in the institution.

This broader set includes students who might not have been present that day or were not approached by the teacher for their input. Determining the population aids in understanding the context and scale of the sampled data.

For instance, if the gym teacher's goal is to ascertain the percentage of students engaged in sports activities, the population figure (total number of students) becomes crucial for accurate statistical inference.

Consequently, the teacher can use this information to make informed decisions or implement strategies that cater to the entire student body, considering the interests and involvement in sports across the school.

Find the geometric mean of 12 and 27. Write

Answers

Answer:

The geometric mean is 18

Step-by-step explanation:

To find the geometric mean of two numbers, start by multiplying them together.

12 * 27 = 324

Now take the square root of that number

√324 = 18

Can someone help me please

Answers

Answer:

D

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

can someone explain please​

Answers

Answer:

[tex]\large\boxed{B.\ \dfrac{7}{4}}[/tex]

Step-by-step explanation:

[tex]\dfrac{\Delta y}{\Delta x}=\dfrac{14}{8}=\dfrac{14:2}{8:2}=\dfrac{7}{4}[/tex]

a shirt was originally $35 and is now 25% off.What is the sale price

Answers

100% - 25% = 75%

$35 x 75/100 = $26.25

The sale price should be $26.25.

Given information:

a shirt was original $35 and is now 25% off.

Calculation of the sale price:

Since it is 25% off

So, it should be

= 100% - 25%

= 75%

Now the 75% of $35 should be $26.25.

Learn more about the price here: https://brainly.com/question/24320257

39 POINTS!! I NEED HELP ASAP!!!!!!! 2 QUESTIONS!!!!!

1) the area of a rectangle is 8w + 18. Use your width expression to find the width of the rectangle when w = 1.25 feet. Show your work.

2) The sixth grade band students are selling magazines to raise money for new instruments. As a reward for selling, the students earn points to spend on prizes. Each student gets 25 points to start with, and then they earn an additional 5 points for each magazine they sell. If m represents the number of magazines a student sells, write an expression to represent the total number of points the student has. Determine how many points a student has if they sell 6 magazines. Show your work.

Note: the width expression is just the way how you yourself does it, no specific way is required))

Thank you.

Answers

Answer: 1) [tex]A = 28ft^{2}[/tex]

2) 55 points

Step-by-step explanation:

1) A= 8w + 18, w=1.25

A = 8(1.25) + 18

A = 10 + 18

A = 28ft^2

2) 25 points to start with, additional 5 points per magazine they sell, m = number of magazines they sell

total points = 25 + 5m

How many if they sell 6?

total = 25 + 5(6)

= 25 + 30

total = 55

Rachel has an 80:1 scale drawing of the floor plan of her house. On the floor plan, the dimensions of her rectangular living room are 1 7/8 by 2 1/2 inches. What is the area of her actual living room in square feet? ​

Answers

Answer:

208⅓ ft²

Step-by-step explanation:

The dimensions of Rachel's living room are 80 times the measurements on the scale drawing.

Calculate the width:

                                                                                     w = 80 × 1⅞

Convert the mixed number to an improper fraction     = 80 × 15/8

Cancel the 8s                                                                  = 10 × 15

                                                                                        = 150 in

Convert inches to feet                                                   = 150/12  

Convert the improper fraction to a mixed number      = (144 + 6)/12

                                                                                        = 12⁶/₁₂

Reduce the fraction to lowest terms                             = 12½ ft

Calculate the length

l = 80 × 2½  = 80 × 5/2 = 40 × 5 = 200 in = 200/12 = (192 + 8)/12

l = 16⁸/₁₂ = 16⅔ ft

Calculate the area

A = lw

A = 16⅔ × 12½

Convert the mixed numbers to improper fractions

A = 50/3× 25/2

Cancel the 2s

= 25/3 × 25

Multiply numerators and denominators                        

= 625/3

Convert the improper fraction to a mixed number    

= (624 + 1)/3

= 208⅓ ft²

The area of Rachel's living room is 208⅓ ft².

Evaluate b^2 c^-1 for b = -4 and c = 2.

Answers

Answer:

8

Step-by-step explanation:

b^2 c^-1

Let b=-4 and c =2

(-4)^2 * (2)^-1

The negative exponent means it is in the denominator

(-4)^2 / (2)^1

16/2

8

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