Mathematics Middle School

If a polynomial function f(x) has roots 0, 3, and 2+ V5, what must also be a root of f(x)?
-2-sqrt15
2-sqrt15
15-sqrt 2
15+sqrt 2

Answers

Answer 1

Answer:

Option B.

Step-by-step explanation:

Note: Given roots are not in proper format.

Consider the polynomial function f(x) has roots 0, 3, and [tex]2+\sqrt{15}[/tex].

According to irrational root theorem if [tex]a+\sqrt{b}[/tex] is root of a polynomial P(x), then [tex]a-\sqrt{b}[/tex] is also a root of polynomial P(x).

Since [tex]2+\sqrt{15}[/tex] is an irrational root of the function f(x). By irrational root theorem [tex]2-\sqrt{15}[/tex] is also a root of function f(x).

Therefore, the correct option is B.

Answer 2

Answer:

B)

Step-by-step explanation:

Related Questions

Serena bought 5 pounds of dough to make pizzas the recipe gives the amount of dough needed for pizzas in ounces how many dough did she buy?

Answers

It’s 64 Ounces
Hope this help

In a right triangle, the length of one leg is 4 units. The length of the other leg is 10 units. What is the length of the hypotenuse? A) v12 Units B) v14 units C) v84 units D) v116 units

Answers

Answer:

Step-by-step explanation:

Hypotenuse^2=4^2+10^2=16+100

Hypotenuse^2=116

Hypotenuse=square root of 116

units

The length of the hypotenuse is √116.

Option D is the correct answer.

What is the Pythagorean theorem?

Pythagorean theorem states that for a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

We can apply this theorem only in a right triangle.

Example:

The hypotenuse side of a triangle with the two sides as 4 cm and 3 cm.

Hypotenuse side = √(4² + 3²) = √(16 + 9) = √25 = 5 cm

We have,

Hypotenuse = H

Applying the Pythagorean theorem.

H² = 4² + 10²

H² = 16 + 100

H² = 116

H = √116

Thus,

The length of the hypotenuse is √116.

Learn more about the Pythagorean theorem here:

https://brainly.com/question/14930619

#SPJ2

Please help with this question i really need help

Answers

Answer:

1,2,3 and then the last two

Step-by-step explanation:

Complete the sentence.
Twenty-seven is
a0% of 60.

Answers

Answer:

45%

Step-by-step explanation:

Let P = be the unknown percent

is means equals and of means multiply

27 = P * 60

Divide each side by 60

27/60 = P60/60

.45 = P

Change to percent form

45% = P

Answer:

Its 45

Step-by-step explanation:

27/60    */100

Cross multiply

27x100

2700

2700/60

=45%

choose all that apply 13^6+(13^8)(13^-4)/13^-2

Answers

Answer:

Step-by-step explanation:

answer:

step by step explanation:

What is the beat values of averages, such as mean, median, and mode, are known as

Standard deviation
Frequency table
Measures of center
Range?

Answers

Answer:

Standard deviation

Step-by-step explanation:

what is the triangular number of (546)

Answers

Answer:

Step-by-step

149331:

Answer:

149331

Step-by-step explanation:

hope its correct and it helps

I need help with this math problem please

Answers

Ok where is the question

What is the perimeter


This Pythagorean theorem

Answers

Answer:

a is 5 so the perinmeter is 30

Solve the equation in the image

Answers

Answer: 55

Step-by-step explanation:

[tex]\sqrt[3]{4x-4}=6[/tex]

Begin by cubing each side of the equation to get rid of the cubic root.

[tex](\sqrt[3]{4x-4})^3=(6)^3\\ 4x-4=216[/tex]

add 4

[tex]4x-4+4=216+4\\4x=220[/tex]

Divide by 4

[tex]\frac{4x}{4}=\frac{220}{4}[/tex]

[tex]x=55[/tex]

Answer:

it is zero

Step-by-step explanation:

HELP ASAP WILL MARK BRAINLIEST
IF YOU DONT KNOW DONT ANSWER

Answers

Answer:

y is 29 degrees

Answer:

y =29

Step-by-step explanation:

angles 2y and 58 are corresponding ∡ and corresponding ∡ are equal:

2y =58

y= 29

Select all that apply to the graph

Answers

A. There is a horizontal asymptote at y = 3.
D. There is an x-isn’t at approximately (-0.6, 0).

!!!!!!NEED HELP !!!!!! y=-50x + 750 which of the following does NOT match the equation shown.

Answers

Answer:

I think its B

Hope it helps :/

Answer:

y=10x-50

Step-by-step explanation:

Probability of landing in the white not the red. Please helpppppppppppp!

Answers

Fun, geometry disguised as probability.

That's a pentagon, which we can view as 10 right triangles with legs a and s/2 (half of s) and hypotenuse r.  So area of the pentagon is

P = 10 × (1/2) a (s/2) = 10 (1/2) (3.2) (4.7/2) = 37.6

The area of the circle is πr² so the circle area is

C = π (4²) = 50.265482

The white area is the difference, C-P, and the probability we seek is the fraction of the circle that's white, so (C-P)/C.

p = (C-P)/C =1-P/C = 1-37.6/50.265482 = 0.251971

Answer: 0.25

Higher than I would have guessed from the figure.

Why was radian such a good safety on the football team? (25 pts)

Answers

Answer: because of the translational and rotational motion of the football

Step-by-step explanation:

A kick or a well thrown football follows a projectile path while spinning. In football, creedence is given to the translational motion which is independent of the spinning rotational motion. Radian is good in analysing the path because the angle representing one radian, is such that the length of the subtended circular arc is equal to the radius of the circle. 

I need help with this question thank u

Answers

Hey there !

The answer would be A. n = t + 2

The sequence is adding two to the last term in the sequence, or t.

Hope this helps !

Answer:

The answer is C.

[tex]n = 2t - 1[/tex]

Step-by-step explanation:

You can simply determind the answer by placing all pair of value n and t in the equation, one by one.

First, try the answer A, you should get as following;

[tex]n = t + 2 \\ 1 = 1 + 2[/tex]

and try to see if it is true or not,

in this case,

1 will never equal 1 + 2 (1 ≠ 1 + 2)

Therefore A is not the Answer. Try going through all other choices, and you will find the answer. The calculation is very simple, you probably won't need a calculator!

[EDIT]

i just realize this answer is wrong sorry

Asphere and a cylinder have the same radius and height. The volume of the cylinder is 64 m3.
hl
.

Answers

Answer:

r=21.3 h=32

Step-by-step explanation:

Hey guys I need help with this exercise can someone plz help me for 20 points?? Also write the explamation to your answer plzz!

Math problem: 13 of the same cookbooks weigh 442 grams. What is the weight of 10 of these books?

Answers

Answer:

340

Step-by-step explanation:

442 / 13 = 34

34 × 10 = 340

Answer:

340

Step-by-step explanation:

442 / 13 = 34

34 × 10 = 340

There is a Ferris wheel in Rebecca's town with the following dimensions. Rebecca wants to use a scale factor of 3 mm = 4 ft to make a scale drawing of the Ferris wheel. What will be the height of the Ferris wheel in Rebecca's drawing?
A. 352 mm

B. 333.3 mm

C. 187.5 mm

D. 198 mm

Answers

Answer: I think its B 333.3mm

Step-by-step explanation:

EF
is parallel to the bases of the trapezoid ABCD and bisects the area. Find the length of
EF
, if AD = 48 cm and BC = 14 cm.

Answers

Answer:

Step-by-step explanation:

48 + 14 / 2 =  31

how do you write the algebraic notation when the scale factor is 3 ​

Answers

Answer:

(x,y) = (3x,3y)

Step-by-step explanation:

Answer:

I can agree

Step-by-step explanation:

What is the equation of the graphed line written in standard form?
–3x + y = –4
y = 3x – 4
y + 3x = 4
3x – y = 4

Answers

Answer:

Option B:  y = 3x - 4

Step-by-step explanation:

edg2020

Answer:

the correct answer is B

Step-by-step explanation:

y=3x-4

The volume of a cube is 64 cubic inches. Which expression represents s, the length of a side of the cube?

Recall the formula Cube V = 5

s=/64

CS= 64 +64 +64

S= 64

S=64.64.64

Answers

Answer:

Therefore the length of a side of a cube is [tex]\sqrt[3]{64}\ or\ 4[/tex]

Step-by-step explanation:

The volume of a cube is expressed as L³ where L is the length of each side of the cube.

Given volume of a cube = 64in³

On substituting;

64 = L³

Taking the cube root of both sides to determine L we have;

[tex]\sqrt[3]{64} = (\sqrt[3]{L})^{3}\\\sqrt[3]{64} = L\\L=4[/tex]

Therefore the length of a side of a cube is [tex]\sqrt[3]{64}\ or\ 4[/tex]

Answer:

the guy above me is correct on edge 2020

Step-by-step explanation:

Please help!! Thanks!

Answers

Answer:

C

Step-by-step explanation:

Find the value of X. Round to the nearest tenth as needed.​

Answers

The correct answer is 10.6

Answer:

the value of x is 10.6

PLEASE HELP!!!
How many cubes with side lengths of 1/2 cm does it take to fill the prism?

Answers

Answer:

I think the answer is 3. Im not fully sure/

Step-by-step explanation:

Can anyone help with this? First question gets marked brainliest!

Answers

Answer:

5 cm

Step-by-step explanation:

Answer:

5 cm

Step by step explanation

answer the following ​

Answers

Answer: you would times everything I don’t remember how I did this but I did it by multiplying everything hope I helped and you would add the cm with the answer you got

Hope this isn’t too confusing, I tried to color code it.

What is the measure of ∠4?

Answers

I am pretty sure that four would equal 59 degrees because 60+61 equals 121 degrees and that line should in total equal 180. So you would do 180-121 which gives you 59.

solve 6= (fraction) x+2/3 step by step

Answers

6 = [tex]\frac{x+2}{3}[/tex]

Let us take 3 to the left hand side of the equation.

6 x 3 = x + 2

x + 2 = 18

x = 18 - 2

x = 16

Other Questions
Which description of Ulysses S. Grant is correctHe came from a famous family and looked very distinguished.A He was successful in every enterprise that he undertook during his life.BHe had been commandant at West Point and was an expert on military theory.CHe was willing to outlast the enemy even at the cost of high casualties.DHe came from a famous family and looked very distinguished. andeconomiesA mixed economy has strong elements of both. planned... traditionalB. market... plannedC. market... traditionalD. planned ... commandPlease select the best answer from the choices provided.0 AD Which of the following statements is true about resting heart rate?A. A HIGH resting heart rate means that your heart is strong & healthy.B. A LOW resting heart rate means that your heart is strong & healthy. It can do the same amount of work with fewer beats.C. Resting heart rate is only important during exercise.D.Resting heart rate is not a good indicator of fitness. What is length of GX?6.2Enter your answer in the box5.7units4.5wNext Each of the triangular faces has an area of 32 m2.What is the surface area of the square pyramid?64 m296 m2192 m2256 m2 WORTH 50 POINTS AND BRAINLIEST NO FAKE ANSWERS NO PLAGIARISM OR WILL REPORT ALSO WRITE 4 SENTENCES. A nickel, a dime, and a quarter are touching as shown. Tangents are drawn from point A to both sides of each coin. In a short paragraph, explain what you can conclude about the four tangent segments? There are only about 400,000 African elephants left in the world today. They areclassified as endangered by the International Union for Conservation of Nature, andthe population continues to decrease by 9% per year. What will the population ofAfrican elephants be in fifty years? Which expression is equivalent to mn+z What is 1:15 in Spanish 9x-y=-3 18x-7y=-21 A 0,3B no solutionC 0,1D -1,0 Einstein developed much of his understanding of relativity through the use of gedanken, or thought, experiments. In a gedanken experiment, Einstein would imagine an experiment that could not be performed because of technological limitations, and so he would perform the experiment in his head. By analyzing the results of these experiments, he was led to a deeper understanding of his theory. In each the following gedanken experiments, Albert is in the exact center of a glass-sided freight car speeding to the right at a very high speed vvv relative to you. Albert has a flashlight in each hand and directs them at the front and rear ends of the freight car. Albert switches the flashlights on at the same time. In Albert's frame of reference, which beam of light travels at a greater speed, the one directed toward the front or the one toward the rear of the train, or do they travel at the same speed? Which beam travels faster in your frame of reference? Enter the answers for Albert's frame of reference and your frame of reference separated by a comma using the terms front, rear, and same. For example, if in Albert's frame of reference the beam of light directed toward the front of the train travels at a greater speed and in your frame of reference the two beams travel at the same speed, then enter front,same. Dave wants to sketch a scale drawing of the porch. Choose a reasonable scale and make a scale drawing of the porch. Label the demensions of the model Where is new ocean floor formed? What was Senator John Crittendens plan to stop secession? help me please!!!!!! PLZZZZ HELP!!!!!!!!!!!! 2x-y+5=8 in slope-intercept form please! Who do Mr. Wopsle and pip find on the street after reading the play Which is not a role of the president At what temperature will a gas be, if you allow it to expand from its original volume of 756 mL at 65.0 C to 1.40 L? (hint volume needs to be the same)