Mathematics High School

What is the sum of the square root of 2 and the square root of -18?
O 42
0 421
O 52
O 5ſi

Answers

Answer 1

Answer:

4 ·2i

Step-by-step explanation:

√2 + √-18

√2 + √9·-2

√2 + 3√-2  

(3 +1 )(√2 ·√-2) = 2i

4 · 2i

Related Questions

Simplify:
(11x0q6)(7x0)
I need step by step too

Answers

Answer:

(11⋅7q^6)

Step-by-step explanation:

STEP 1:

11q^6 • 7

STEP 2:

Final result :

 (11•7q6)

1. A recipe says that 4 cups of dry rice will serve 8 people. Complete the table as you answer the
questions. Be prepared to explain your reasoning.
cups of rice
number of people
o
How many people will 10
cups of rice serve?
4
8
o
6
12
How many cups of rice are
needed to
serve 42 people?
10
42

Answers

Answer:

How many cups will 10 cups of rice serve? 20

How many cups of rice needed to serve 42 people?21

If a²+b²=74 and ab=10 find the value of (a-b)²​

Answers

Answer:

54

Step-by-step explanation:

(a -b)²

= a² -2ab +b²

= a² +b² -2ab

= 74 -2(10) (subst. value of a²+b² and ab)

= 74 -20

= 54

Write in the name of the molecular geometry for each molecule described below.

A molecule with two atoms and no lone pairs around the central atom has a
shape.
A molecule with four atoms and no lone pairs around the central atom has a
shape.
A molecule that has two atoms and two lone pairs around the central atom has a
shape.
A molecule that has five atoms and no lone pairs around the central atom has a
shape.

Answers

Answer:

linear

tetrahedral

bent

trigonal-bipyramidal

Step-by-step explanation:

lineartetrahedralbenttrigonal-bipyramidalWhat is molecular geometry?

Molecular geometry, also known as the molecular structure, is the three-dimensional structure or arrangement of atoms in a molecule.

a) A molecule with two atoms and no lone pairs around the central atom has a shape -Linear.

b) A molecule with four atoms and no lone pairs around the central atom has a shape- Tetrahedral

c) A molecule that has two atoms and two lone pairs around the central atom has a shape - Bent.

d) A molecule that has five atoms and no lone pairs around the central atom has a shape- Trigonal-bipyramidal.

Learn more about molecular geometry here:

https://brainly.com/question/21939862

#SPJ2

Please help im stuck wjiesdGREE

Answers

Answer:

13/90

Step-by-step explanation:

Kelly ran 3 miles fewer than twice as far as Jim. Jim ran
m miles. Which expression represents how far Kelly ran?

Answers

Answer:

2m - 3

Step-by-step explanation:

she ran 3 miles less than twice as far as Jim

Find the next three term of this sequence 3.2,4.3,5.4,

Answers

Answer:

6.5, 7.6, 8.7

Step-by-step explanation:

It increases by 1.1 each time.

6.5, 7.6, 8.7

This pattern is to add 1.1 each time.

Look at image please help me I’m struggling

Answers

The unit rate is 2 cookies/ 1 dollar
You can get this by looking at the slope, it goes up by 2 and then to the right by 1.

PLEASE HELP, ITS SIMPLE WILL GIVE BRAINLIEST

Answers

Answer:

What part do u need help with?

Step-by-step explanation: kaknckndnkcksnjkjs

Explain why 10 x 2 is equivalent to 10 ÷ 1/2??

Answers

Answer: Because multiplying or dividing by the reciprocal is the same.

Find the range of each function when the domain is {-3, -2, 2, 3}
f(x)=5x-6​

Answers

Answer:

-21, -16, 4, 9

Step-by-step explanation:

-3: f(-3) = 5(-3)-6 = -15-6 = -21

-2: f(-2) = 5(-2)-6 = -10-6 = -16

2: f(2) = 5(2)-6 = 10 - 6 = 4

3: f(3) = 5(3)-6 = 15 - 6 = 9

2x+3y=-10 Solve for y

Answers

Answer: y= -10/3 - 2x/3

Step-by-step explanation:

move all terms that dont contain y to the right side and solve

The answer is: x is choose your answer

Answers

Answer:

All real numbers

Let's find the critical points of the inequality.

−4x+7=17

−4x+7+−7=17+−7(Add -7 to both sides)

−4x=10

−4x−1=10−1

(Divide both sides by -1)

4x=−10

4x=−10(Solve Exponent)

log(4x)=log(−10)(Take log of both sides)

x*(log(4))=log(−10)

x=log(−10)log(4)

x=NaN

If 7/9x - 4/9x = 1/4 +5/12
what is the value of x?

Answers

Answer:

x=2

Step-by-step explanation:

subtract 7/9x -4/9x

3/9x= 1/4 +5/12

first change 1/4 to 3/12

then add 3/12 + 5/12

3/9x = 8/12

change 3/9x to 1/3x then to 4/12x

4/12x = 8/12

then mulitiply by the reciprical 12/4 on both sides

x = 2

SOMEONE PLEASE HELP I CANT GET IT

Answers

Answer:
y=3x+9

Explanation:
To answer this question, we first have to understand a few key concepts.

1) The equation given (y=3x+9) is written in slope-intercept form, which is y=mx+b.

Heres what the variables mean:
Y=the coordinate
M=the slope
X=the x coordinate
B=the y-intercept (the point on the line that intercepts the y-axis)

2) Parallel lines have the same slope. Using the given equation, we now know that the slope of line s is 3. Therefore, the slope of line t is also 3 (because they are parallel).

So now, this is our equation so far:
y=3x+b

All we need to do now is find b, which we can do by plugging in the coordinate (-6,-9) as the x and y variables.

y=3x+b
-9=3(-6)+b
-9=-18+b
Add 18 to both sides
-9+18=-18+b+18
9=b

And when we plug 9 into y=3x+b, we get:
y=3x+9

(And yes, they are pretty much the same line)

I hope this helps! Please comment if you have any questions.

convert to a mixed number in simplest form 82/6​

Answers

Answer:

13 4/6 or 13 and 2/3

Step-by-step explanation:

82/6

find multiples of 6 closest to 82

6*13=78

82-78 is 4

13 and 4/6 or 13 and 2/3 simplified

Is it cheaper to buy 10 single apples or buy them in a bundle of 10?



Plz help I’m not trying to fail

Answers

it's easy to by them Cheaper tbh  with you  

and it's a quiz Right??

Answer:

A bundle always cheaper than a single apple.

Step-by-step explanation:

Bundling helps to increase efficiencies and reduce marketing and distribution  as well as maintenance cost.

What are the x and y-intercepts of the line described by the equation? -6x + 3y = 12

Answers

Answer:

(-2,0)  (0,4)

Step-by-step explanation:

Help please the picture is above.

Answers

The answer to this one is -64, again, just plug in -9 where the x values are (:
The answer is -136

Plug in 9 for x

f(9)= -(9)^2 - 4(9) - 19

f(9) = -81 - 36 - 19

f(9) = -136

Which equation represents the line of reflection for this graph?
3
12
2 3 4
5
6
-2
3
-5
A
O y=2
Ox=-2
© X=0
y=-1

Answers

Answer:

x= 0

Step-by-step explanation:

Because it scale factor

72x–16y=1,440 write in slope intercept form

Answers

Answer:

y=9/2x -90

Step-by-step explanation: I know allLlLLLlLLLllLll...jk i dont (:

Answer:

Answer Below

Step-by-step explanation:

Hope this helps! <3

Which of the following are ordered pairs for the equation y = 1/3x + 1?
O (1,0) (2,3) (3,6)
O (0,1) (3,2) (6,3)
O (0,1) (1,4)(2,7)
O (1,0) (3,2) (6,3)

Answers

Answer:

The second answer choice; (0,1) (3,2) (6,3) is your answer.

Step-by-step explanation:

I don't know how to explain this but here's a picture of the line; y=1/3x+1

I hope this helps! :)

find the product using suitable properties a, 38 × 55 + (-45) ×38​

Answers

Answer:

= 380

Step-by-step explanation:

(38*55) + (-45*38)

(2090) + (-1710)

2090 - 1710

= 380

380 is the correct answer I believe

(6.-12) & (15,-3)
Need to find slope

Answers

Answer:

i look it up

Step-by-step explanation:

What do u think about these fr?

Answers

Answer:

They are super good!! better than me tbh lol

Step-by-step explanation:

Answer:

Yes.

Step-by-step explanation:

I like them they arent over drawn i like the simplicity and cleaness of the images you managed to do.

In the diagram below, DE is parallel to Y. What is the value of x

Answers

180-115=65 (just writing this because my answer has to be over 20 characters)

What is m Enter your answer in the box
m

Answers

Answer:

x = 30

Step-by-step explanation:

x + 2x + 3x = 180 (Add like terms)

6x = 180 (Divide both sides by 6)

x = 30

Therefore;

x = 30

2x = 60

3x = 90

X=30
3x=90
2x=60

If you are referring m as x then first we need to understand and realize how a triangle will ALWAYS equate to 180°.

With that being said a triangle will always have 3 angles, along with them all being able to be added up at equating 180. In this case all of our angles are related to x. We want to first add up all of our angles to equal 180 (x+2x+3x=180 OR 6x+180.) now that we have our equation, we want to solve for x so we need to isolate x first, in order to get 6 out of 6x we must divide by 6 on both sides of the equation which will then give us 180/6=30.

With x equating to 30 then we simply plug in our values for the angle. 3(30)= 90, 2(30)= 60 and x=30

what number of dots has “1 from 3” code 1021?

Answers

Answer:

4 is the answer is it right

Ten times a number, x, is one-half the sum of the number and three.

Which answer represents this situation?

10x=12(x+3)

10x+12x+3

10x=12x+3

10x+12(x+3)

Answers

Answer:

10x=1/2(x+3)

If you substitute numbers and characters in for words you would get this equation.


WILL MARK BRAILYIST hellllpppp plzzzz

Answers

The answer is: 58 degrees
Other Questions
PLEASE JUST HELP! :(((((Based on The Riddle of the Rosetta Stone, which statement best describes the role Jean-Franois Champollions brother played during difficult times in his studies?He assisted Jean-Franois in his research and moved so he could live closer to him.He encouraged Jean-Franois to pursue other interests and offered him new ideas.He continued to support Jean-Franois and offered financial assistance at times.He remained unsupportive of Jean-Franois and criticized his research findings. Which of the following was NOT one of Martin Luther's beliefs? (WHII.3a) aSalvation by Faith alone bPeople should read and interpret the Bible for themselves cChurch teachings should come from the papacy dPeople should be able to read the Bible in their own vernacular what is the equation of the following graph What is the output of the following program?S = "foo"t = "bar"print(((s+t)*3).count("barf")) What do you think is the most practical method of processing fruits and vegetables? Why? The are bodies of rock or gas that are named for ancient gods. are made of rock or metal, which often collide with Earth.The are most similar to Earth.The Juno probe is exploring the planet . .The skydiver will soon open her parachute. How will her velocity change whenthe parachute first opens? Identify the best thesis statement below.A. Public schools should require students to wear uniforms because it will help eliminate bullying.B. Bullying behavior is a growing problem in public schools that needs to be corrected.C. Requiring uniforms in schools would help eliminate bullying.D. Students should be required to wear uniforms. BLACK BEAUTY BY ANNA SEWELL, WHAT IS THE MAIN CONFLICT IN THIS STORY Why does the author shift from 2007 to 2017? Whats the difference between democrats and rebublicans Jack drove to the train station and back. Ittook two hours less time to get there thanit did to get back. The average speed onthe trip there was 40 km/h. The averagespeed on the way back was 24 km/h. Howmany hours did the trip there take? Over a period of 12 hours, the temperature dropped 60F. What was the average change in temperature in one hour? 17'-0.39 Write each fraction as a percent 4. mla 3 10 When combining sentences,work to write. edhesive 1.6 code practice A city has a population of 38802500 people. Estimate this population to the nearest ten million The rebels sends their messages in code.Does the verb agree with the subject in this sentence Please help! Brainliest! How are the functions y = 2x2 and y = 2x2 + 7 related? How are their graphs related?A. Each output for y = 2x2 + 7 is 7 less than the corresponding output of y = 2x2. The graph of y = 2x2 + 7 is the graph of y = 2x2 translated down 7 units.B. Each output for y = 2x2 + 7 is 7 greater than the corresponding output of y = 2x2. The graph of y = 2x2 + 7 is the graph of y = 2x2 translated up 7 units. SOMEONE PLEASE HELP ME... GOD WILL BLESS U...Kavitha is 9 years younger than Lizzy. 8 years ago, Lizzy was 2 times as old as Kavitha reduced by 1. How old are they now?