x^2 - 16 = 0 by extracting the square root​

Answers

Answer 1

Answer:

{-4, 4}

Step-by-step explanation:

x² - 16 = 0x² = 16x = √16x = ± 4

Related Questions

which inequality represents the solutions to the inequality −5r+18≤2−3r?

Answers

Answer:

2 step equation problems.

Step-by-step explanation:

So you need to replace -3 into that to add -18 on both sides and that gives you the negative number is -20 and then you add the -5r+-3r less than or equal to -20. Now, negative -5 +3 = -8 + -20 = -28. r=-28.

Add and express in the form of a complex number a + b i.
(2 + 3i) + (-4 + 5i) - (9 - 3i) / 3

Answers

Answer:

-5 + 9 i

Step-by-step explanation:

Hope this helps :)

11/8+(-11/10)=

Plz, I don't know the answer.

Answers

0.275 is the answer




-11/10=-1.1

11/8=1.375

1.375 + (-1.1) = 0.275

Answer:

11/40

Step-by-step explanation:

If your answering in fraction and not in decimal this is how you do it:

1. Get rid of the brackets surrounding -11/10. You do this by multiplying the positive sign (+) by the negative sign (-) in front of 11. Now the rule says that multiplying a positive with a negative always gives you a negative therefore your fraction in the brackets will remain negative while removing the plus sign. Now your problem should look like this: 11/8-11/10.

2. Finding the common multiple of the denominators. You can't just minus the fractions unless the denominators are the same. To do this you first have to find the lowest common multiple (lcm) of denominators 8 and 10. You can list 5 multiples for each to find this or more depending on how many multiples you need to reach the lcm.

8= 8,16,24,32,40,48,etc.

10=10,20,30,40,50,etc.

The lcm for 8 and 10 is 40.

3. Change the fractions to substitute the new value of the denominators in. To do this you have to multiply the fractions. For example, multiply 11/8 by 5/5 to get 55/40(11×5/8×5). Do the same for the second fraction: 11/10×4/4(11×4/10×4) which gives 44/40.

4. Now finally just minus which is just 55/40-44/40 and your answer will be 11/40. Minus the numerators only not the denominators.

I'm not really good at explaining but I hope this helped

i need help with algebra 2 pleasee

Answers

Answer:

[tex]x=\pm \sqrt{21}/7[/tex]

Step-by-step explanation:

We can add 9 to both sides of the equation to get [tex]21x^2=9[/tex].

We can divide both sides of the equation by 21 to get [tex]x^2=9/21[/tex].

We take the square root of both sides of the equation to get [tex]x=\pm \sqrt{9/21}[/tex].

However, that isn't in the form we need.

We know that [tex]\sqrt{9/21}=\sqrt{9}/\sqrt{21}=3/\sqrt{21}=3\sqrt{21}/(\sqrt{21}*\sqrt{21})=3\sqrt{21}/21=\sqrt{21}/7[/tex]

so the answer is really [tex]x=\pm \sqrt{21}/7[/tex] and we're done!

50 points
What is the slope of this line?
A line goes through the points (9, 10) and (-3, 6).
Enter your answer as a simplified fraction in the boxes.
m =
Using the point, (9, 10), write the equation of this line in point-
slope form
Enter your answers in the boxes to correctly complete the
equation
у_=_(x_)
Write the equation of this line in slope-intercept form.
Enter your answer in the box to correctly complete the equation
y =

Answers

The slope is 1/3 (m=1/3)
Y=1/3x+7

plz help no one will help me

Answers

Answer:

left

domain -7 =<x< 10

range -8 to 5

right

domain -7<x<=9

range -7<Y<=5

Graph the image of the given segment under a dilation with scale factor - 1/3 and center of dilation (0, 0)

Answers

Answer:

its hard to see

Step-by-step explanation:

Decimal form of...
1.6/8
2.23/46
3.2/5
4.1/3
5.23/99

(pls understand the question)
( ̄▽ ̄*)ゞ ​

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Solution ~

Question : 1

[tex] \dfrac{6}{8} [/tex]

[tex] \dfrac{3}{4} [/tex]

[tex]0.75[/tex]

Question : 2

[tex] \dfrac{23}{46} [/tex]

[tex] \dfrac{1}{2} [/tex]

[tex]0.5[/tex]

Question : 3

[tex] \dfrac{2}{5} [/tex]

[tex]0.4[/tex]

Question : 4

[tex] \dfrac{1}{3} [/tex]

[tex] 0. \bar3[/tex]

3 is repeating after decimal.

Question 5 :

[tex] \dfrac{23}{99} [/tex]

[tex]0. \bar2 \bar3[/tex]

23 is repeating after decimal.

Solve for x .... please help ASAP

Answers

It is answer A.

1. 5x - 4 > 12 Change sign, do + 4
5x > 16 Then divide by 5 the other side
x > 16/5

2. 12x + 5 < -4 Change sign, do -5
12x < -9 Divide by 12
x < -9/12 = -3/4 simplify the fraction

-
If
f(x) = x - 5
and
g(x) = 4x – 2
-
Find
f(g(x)) = 4x – [?]
-

Answers

Answer:

4x - 7

Step-by-step explanation:

To evaluate f(g(x)) substitute x = g(x) into f(x)

f(g(x)

= f(4x - 2)

= 4x - 2 - 5

= 4x - 7

carla wants to investigate whether a person’s political party affiliation causes the person to be more vocal about political issues. she plans to administer a survey to a large sample of people. which of the following describes why the method of data collection used will prevent carla from achieving her goal?

Answers

Answer:

causation cannot be determined from a survey

Solve for x plzzzzzzzz

Answers

Answer:

x=5

Step-by-step explanation:

Since the two angle are corresponding, they have equal measure

therefore, 22x=110

now that we have produced an equation, solve for the value of x

22x/22 = 110/22

x=5

hope this helps :)

Answer:

22x=110° (corr angles)

x=110÷22

=5

can someone please help me

Answers

Answer:

3

Step-by-step explan4ation:

Always include the steps and/or background required to get to the final answer. Let’s help other people understand and solve future problems on their own.

5x+6y=50
x=-26+6y
what is the solution as a coordinate pair

Answers

Answer:

póngalo en español como puedo yo poner lo en español por que todo me sale en inglés

the circumcenter of a triangle is equidistant from the

Answers

Answer:

The circumcenter of a triangle is a point that is equidistant from all three vertices. The circumscribed circle is a circle whose center is the circumcenter and whose circumference passes through all three vertices.

Step-by-step explanation:

We can conclude that the circumcenter of a triangle is equidistant from the three vertices of the triangle.

What is the Circumcenter of a Triangle?

The circumcenter of a triangle can be said to be a point where all three perpendicular bisectors of the sides of the triangle intersect. At this point, all three vertices of the triangle are equidistant.

This means that, each vertices are far from the circumcenter at equal distance.

Therefore, we can conclude that the circumcenter of a triangle is equidistant from the three vertices of the triangle.

Learn more about the circumcenter on:

https://brainly.com/question/21299234

Ms. Janis teaches math to 254 students each day. she grades one paper for each student each day. if Ms. Janis teaches for 25 days this month, how many papers does she grade?

please help me​

Answers

Answer:

6,350

Step-by-step explanation:

254 times 25 is 6,350

Answer:

6350 Papers

Step-by-step explanation:

254 x 2 = 508

508 x 10 = 5080

(This is basically 254 x 20)

254 / 2 = 127

127 x 10 = 1270

(This is basically 254 x 5)

5080 + 1270 = 6350

Multiply and express in the form of a complex number a + b i.
(-5 + 3i)(- 4 + 8i)

Answers

Answer:

-4 - 52 i

Step-by-step explanation:

Hope this helps :)

Help Help Help
No links

Answers

Answer:

1st graph = infinitely many solutions

2nd graph = (-6, -2)

3rd graph = (2, 6)

Step-by-step explanation:

Hope this helps! Pls give brainliest!

you have from 10pm to 11:30 to do a project. At 11, what fraction of the time remains

Answers

Answer:

1/3

Step-by-step explanation:

10 to 10:30

10:30 to 11

11 to 11:30

3 periods of time

10 to 11 is 2/3 periods

3/3 - 2/3 = 1/3

HELPPPP can someone explain it to me

Answers

Answer:

winner : 16 million

runner up : 6 million

Step-by-step explanation:

half of 16 is 8, and 2 less is 6. 6 + 16 = 22

This is a sample question for brainliest! Brainliest will be given to the user who accurately answers the question with the most detail in a step-by-step explanation. NO guesswork, plagiarism, or links!!!


Simplify the following algebraic expression:


[tex](6 x^{4} ) (4 y^{2} ) / [ (3x^{2} ) (16y)][/tex]

Answers

Well, we're just simplifying the fraction.

(2x^2)(y/4).

(2yx^2)/4.

When powers of the same base are being divided, subtract. The numbers are just plain fractions. 6/3 = 2 and 4/16 = 1/4. x^4/x^2 = x^2 and y^2/y = y.

Edit:

2/4 is 1/2.

(yx^2)/2.

PLEASE HELP WITH THIS ONE QUESTION
In a square kilometer of corn fields, there are about 100,000 plants. About how many plants will Mr. Jimenez have to trample to create the center of the maze?

Answers

Answer:

1767

Step-by-step explanation:

It takes Peter 25 minutes to clean his room. If he finishes cleaning his room at 8:00 P.M., what time did he start cleaning?

Answers

Answer:

7:35 P.M.

Step-by-step explanation:

Answer:

7:35 PM

Step-by-step explanation:

8:00-25 minutes

The value of y varies directly with x. If x = 3, then y = 18. What is the value
of x when y = 84

Answers

The value of x when y = 84 is 14

From the question,

The value of y varies directly with x

That is,

y ∝ x

Introducing the constant of proportionality, k

We get,

y = kx

Also, from the question

If x = 3, then y = 18

Putting these values into the equation, we can determine the value of k

[tex]y = kx[/tex]

[tex]18 = k \times 3[/tex]

Now, divide both sides by 3

[tex]\frac{18}{3}=\frac{k \times 3}{3}[/tex]

[tex]6 = k[/tex]

∴ k = 6

Now, to determine the value of x when y = 84

We will put y = 84 and the value of k =6 into the equation

[tex]y = kx[/tex]

[tex]84 = 6 x[/tex]

Divide both sides by 6

[tex]\frac{84}{6} = \frac{6x}{6}[/tex]

[tex]14 = x[/tex]

∴ [tex]x = 14[/tex]

Hence, the value of x when y = 84 is 14

Learn more here: https://brainly.com/question/17531464

pls answer the problem below

Answers

You’ll have to multiply, 65 by 7 for Martinez and that’s 455 miles, and for Anderson it’s 70 by 7 which is 490 !

Answer:

455 miles and 490 miles.

Step-by-step explanation:

You multiply each rate of speed (miles) by how much time they give.

convert the unit
1.5kg to g​

Answers

Answer:

The answer should be 1500g I think.

Please help me ASAP!!!!!!!

Answers

hgjjvbhkml

Step-by-step explanation:

How many 1/4 cup servings are in 4 cups?

Answers

Answer:

16

Step-by-step explanation:

there are 4 1/4 servings in one cup

there are 4 cups so 4×4

Answer:

The answer of this would be 4.

Step-by-step explanation:

1/4 + 1/4 + 1/4 + 1/4 = 4

If she eats 2 servings of granola, how many calories does she eat?

Answers

Answer:

You did not provide the answer, so I did some research into this question.

Your possible answer is 700.

Use the distributive property to remove the parentheses.
-8(6w-x-2)

Answers

Answer: -48x+8x+16

You just multiply every term in the parentheses

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Full-grown people brought their perplexities to Tom for solution, and were often astonished at the wit and wisdom of his decisions. B) In fact he was become a hero to all who knew him except his own familythese, only, saw nothing in him.Privately, after a while, Tom organised a royal court! He was the prince; his special comrades were guards, chamberlains, equerries, lords and ladies in waiting, and the royal family. Daily the mock prince was received with elaborate ceremonials borrowed by Tom from his romantic readings; daily the great affairs of the mimic kingdom were discussed in the royal council, and daily his mimic highness issued decrees to his imaginary armies, navies, and viceroyalties.After which, he would go forth in his rags and beg a few farthings, eat his poor crust, take his customary cuffs and abuse, and then stretch himself upon his handful of foul straw, and resume his empty grandeurs in his dreams.C) And still his desire to look just once upon a real prince, in the flesh, grew upon him, day by day, and week by week, until at last it absorbed all other desires, and became the one passion of his life.One January day, on his usual begging tour, he tramped despondently up and down the region roundabout Mincing Lane and Little East Cheap, hour after hour, bare-footed and cold, looking in at cook-shop windows and longing for the dreadful pork-pies and other deadly inventions displayed therefore to him these were dainties fit for the angels; that is, judging by the smell, they werefor it had never been his good luck to own and eat one. 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