Mathematics High School

which choice is equivalent to the expression below ^-216

Answers

Answer 1

Answer:

B. 6i√6

General Formulas and Concepts:

Algebra II

Imaginary Numbers: √-1 = i

Step-by-step explanation:

Step 1: Define expression

√-216

Step 2: Simplify

Factor: √-1 · √216Simplify: i · 6√6Multiply: 6i√6

Answer 2

B because when you take the square root of a negative number, it is imaginary (i). That eliminates A,C,D. When you take the square root of -216, the radical will no longer be negative since you identified it as imaginary. The greatest perfect square that you can take from 216 is 36.( 36 x 6= 216). So the square root of 36 is 6. So 6i radical 6 which is B. You can’t simplify the 6 inside the square root because it is not a perfect square. Hope this helps!

Related Questions

There are 400 marbles in a bag. 60 of the marbles are blue. What percent of the marblesare not blue?

Answers

Answer:

80%

Step-by-step explanation:

400-60= 320

320 is 80% of 400

What is the decimal expansion of 3/11

Answers

Answer:

It is 300 + 10 + 1.

Step-by-step explanation:

Answer:

.27

Step-by-step explanation:

just divide 3/11

Which situation is best represented by the following equation?

45w+123.95=753.95
A.Erica paid $753.95 for dance classes. She paid $123.95 for each week she was enrolled in the classes after using a coupon that gave her $45 off the price per week. What is w,the number of weeks Erica was enrolled in dance classes?

B.Erica paid $753.95 for dance classes. She paid a $123.95 registration fee and $45 for each week she was enrolled in the classes. What is w, the number of weeks Erica was enrolled in dance classes?

C.Erica paid $753.95 for dance classes. She paid a $45 registration fee and $123.95 for each week she was enrolled in the classes. What is w, the number of weeks Erica was enrolled in dance classes?

D.Erica and her sister paid $753.95 for dance classes. Erica paid $123.95 for each week she was enrolled in the classes, and her sister paid $45 for each week she was enrolled in the classes. What is w, the number of weeks Erica and her sister were enrolled in dance classes?

Answers

Answer:

The correct answers is B.

Step-by-step explanation:

You buy 80 of your favorite songs from a Web site that charges $0.99 for each song What is the cost of 80 songs?

Answers

Answer:

$79.20

Step-by-step explanation:

0.99 x 80 = 79.2

Hope this helps. (:

Question 1 (2 points)
Jeff is purchasing a car for $29,175 that will depreciate in value 7.5% each year.
Write a function to model the value P of the carafter t years,
If he decides to sell the car after 6 years, what will be the value of his car? Express your answer as a decimal rounded to the nearest hundredth.

Answers

Answer:

p= 18,275

Step-by-step explanation:

The function would be p=29,175(-0.925)^t. You would then substitute t for 6 and solve from there to get p=18,275.

Did it help at all?

what would y=x +5 look at on a graph

Answers

I think it will look like this

In an isosceles triangle, the measure of a base angle is (2x+5)° . At the vertex the measure of an exterior angle is (5x-3)°
There will be an extention at the vertex

Answers

Answer:51.14

Step-by-step explanation:since its an isosceles triangle all interior angles are gonna be equal the exterior angle plus interior angle is will be kept equal to 360

2x+5+5x-3=360

7x+2=360

7x=358

x=51.14

The measure of each angle is 31, 31 and vertex angle is 118.

What is Exterior angle Property?

If a triangle side is created, the outside angle that results is equal to the product of the two opposite internal angles.

Given:

Base angle = (2x+ 5) and Vertex = (5x- 3)

So, We know that the exterior angle is equal to sum of opposite interior angle

5x- 3 = 2x+ 5 + 2x + 5

5x - 3= 4x + 10

x= 13

Thus, Each angle measure 2(13)+ 5 = 31 and

third angle = 180 - (5x- 3) = 180- 62 = 118

Hence, the measure of each angle is 31, 31 and vertex angle is 118.

Learn more about Exterior angle Property here:

https://brainly.com/question/19562895

#SPJ2

A number is multiplied by 4, then 5 is added. The result is 21. Write an equation to represent this situation.

Answers

Answer:

4 x 4 + 5= 21

Step-by-step explanation:

what is 457.894 to 2 deimal places

Answers

Answer:

228.947

Step-by-step explanation:

Answer:

457.894

Step-by-step explanation:

"What is 457.894 rounded to 2 decimal places?" is the same as asking, "What is 457.894 rounded to two decimal points?" or "How to round 457.894 to two decimal places."

The main point is that you want to round 457.894 to two digits or places after the decimal point. Thus, we want to eliminate the last digit in 457.894. To eliminate the last digit in 457.894, we use the following Two Decimal Places Rules to get the answer:

Two Decimal Places Rule #1: If the last digit in 457.894 is less than 5, then remove the last digit.

Two Decimal Places Rule #2: If the last digit in 457.894 is 5 or more and the second to the last digit in 457.894 is less than 9, then remove the last digit and add 1 to the second to the last digit.

Two Decimal Places Rule #3: If the last digit in 457.894 is 5 or more and the second to the last digit in 457.894 is 9, and the third to the last digit is less than 9, then remove the last digit, make the second to last digit 0, and add 1 to the number to the third to the last digit.

Two Decimal Places Rule #4: If the last digit in 457.894 is 5 or more and the second to the last digit is 9, and the third to the last digit is 9, then add 1 to the number on the left side of the decimal point and make the right side of the decimal point 00.

When rounding 457.894 to two decimal places we use Two Decimal Places Rule #1. Therefore, the answer to "What is 457.894 rounded to 2 decimal places?" is:

457.89

104÷16=
I really need help

Answers

Answer: 6.5, hope this helps you

Answer:

6.5

Step-by-step explanation:

Consider the conditional statement: If M is the midpoint of line segment AB, then AB = 2AM.
a. What is the hypothesis p?
b. What is the conclusion q?
c. What is the truth value of the conditional statement if p is false and q is false? Explain your reasoning.

Answers

Answer:

Following are the solution to the given points:

Step-by-step explanation:

In point a:

The middle point of the segment AB will be the hypothesis, which is equal to M.

In point b:

The conclusion of AB = 2AM.

In point c:

If p q is incorrect, after all, M is not really the middle point of a section AB, then the inference is wrong.

Please helppppp. Thank you

Answers

Answer:

[tex]x \geq -42[/tex]

Step-by-step explanation:

[tex]3 - \frac{x}{2} \leq 18[/tex]

subtract 3

[tex]- \frac{x}{2} \leq 15[/tex]

multiply by two

[tex]-x \leq 30[/tex]

devide by -1 and flip the sign

[tex]x \geq -30[/tex]

PLEASE HELP ME :(

What is the length of the midsegment AB?

Answers

31 31- I'm just dragging this out cause the thing wants me to type more

The midsegment of a trapezoid is parallel to each base, and its length is one-half the sum of the lengths of the bases.

what is an explicit formula for the following sequence 1,5,9,13,17 ? plssss helppp mee

Answers

Answer:

plus 4 every time

Step-by-step explanation:

1+4=5+4=9+4=13+4=17

J has a loan of $42,350. This loan has a simple interest rate of 8% per year. What is the amount
of interest that will be charged on this loan at the end of two years?

Answers

Answer:

6776

Step-by-step explanation:

8℅ = 0.08

0.08 x 42350 = 3388

3388 x 2 = 6776

5. A team of mountain climbers makes camp 1.48 kilometers above sea level. They climb another 2.91
kilometers to the mountain's peak. How tall is the mountain?

Answers

Answer:

4.3068

Step-by-step explanation:

so what you do is 1.48 x 2.91

Answer:

= 4.39km

Step-by-step explanation:

Camp distance = 1.48Km

Distance travelled afterwards = 2.91km

Mountain Height = total distance travelled

So total distance = 1.48 + 2.91

= 4.39km -----------> final answer

72.50 she worked 5 hours. If she was paid the same hourly wage, how many hours will see have to work to get 232.00

Answers

Answer:

16 hrs

Step-by-step explanation:

per hour she gets 72.50 / 5 or 14.50

so t * 14.5 = 232

t = 232 / 14.5

t = 16 hours

15:59:26
Which inequality has -12 in its solution set?
B
D
X+6<-8
H10
X+55-4
A
B
C

Answers

Answer:

Step-by-step explanation: I just took the quiz.

whats the answer giving brainliest:)(::::::::::::::::::::::::::::::::::;;;

Answers

Answer:

it is definately b

Step-by-step explanation:

i got u 100

Answer:

B. Yes, She did the problem correctly

Step-by-step explanation:

ye dat's all there is

Answers

Answer: It $7.80 per hour

Hi hi

Step-by-step explanation:

Please can someone help me with this maths question ‍♀️:
Solve 5x+2=20

Answers

Answer:

x = 18/5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define equation

5x + 2 = 20

Step 2: Solve for x

Subtract 2 on both sides: 5x = 18Divide 5 on both sides: x = 18/5

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x: 5(18/5) + 2 = 20Multiply: 18 + 2 = 20Add: 20 = 20

Here we see that 20 does indeed equal 20.

∴ x = 18/5 is a solution to the equation.

Can someone help me with these pls : ( I'm confused

Answers

Answer:

xy=3

QR =12

Step-by-step explanation:

Answer:

Step-by-step explanation:

XY is 3 (B)

QR is 12 (B)

Brainliest? Have a good day!

A cylinder has height 20cm.
The area of the circular cross section is 74cm.
Work out the volume of this cylinder

Answers

Answer:

volume= l*b*h

So, Volume=area*height

= 74*20

=1480cm³

Question 6
Eric is baking a cake. The recipe calls for
or 2 1/2 pounds of flour for every 1/4 cup of sugar. How many pounds of flour should Eric use for 1 cup of sugar?

Answers

Answer:

10 lbs.

Step-by-step explanation:

If its 2.5 pounds of flour for every .25 cup of sugar

1/(1/4)

to get 4 and then do

4 * 2.5

MATH AGAIN HELP PLS!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

I think it is the first one but i could be wrong

In the Pythagorean Theorem, the sum of the squares of the legs is equal to the square of the
a. shorter leg
b. longer leg
c. sum of the angles
d. hypotenuse

Answers

Answer: D

Step-by-step explanation:

The sum of the squares of the legs is equal to the square of the hypotenuse .

What is the solution to the system of equations?
(-6,-2)
(-2,-6)
(2,-4)
(-4,2)

Answers

Answer:

its c

Step-by-step explanation:

The answer is (2,-4)

An angle pair that is on the exterior of two lines but on opposite sides of the transversal.

Answers

Alternate exterior angles are angles outside the lines being intersected, on opposite sides of the transversal, and are not adjacent. In Figure 2 , ∠l and ∠7 are alternate exterior angles. Also, ∠2 and ∠8 are alternate exterior angles.

PLEASE LOOKS AT PHOTO it’s due tonight i’m struggling badly :(

Answers

Answer: y=6.32
7^2-3^2=40

Answer:

y = 6.32

Step-by-step explanation:

7^2-3^2= 40

hope it helped

I'm looking for people with common interests.. who watches anime reads yaoi and writes fanfiction???
Dont answer if your not into these.

Answers

I watch anime and write fanfiction :). I have to pass my finals for math and english before I become ungrounded cause I have D's in those two subjects but other than that yeah hi :)

Answer:

I love similar things.

Step-by-step explanation:

Sometimes enjoy drawing anime and drawing period. I also really enjoy writing novels/fanfictions. Maybe not as much as I love reading them, though.

I hope this is what you're looking for! :D

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which choice is equivalent to the expression below ^-216​

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which choice is equivalent to the expression below ^-216