Which expression is equivalent to21^3 sqrt15 - 9^3 sqrt 15 ?
A.12
B.30^3 sqrt 15
C.12^3 sqrt 5
D.12^3 sqrt 15
I have tried to complete this And I get stuck like 15 mins into it.

Answers

Answer 1

Answer:

D.12^3 sgrt 15

Sana makatulong

Answer 2

The expression that is equivalent to the given expression is 12√15. Option D is correct.

Given that,
Which expression is equivalent to 21√15 - 9√15 is to be determined.

What is arithmetic?

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.


Here,
According to the question,
= 21√15-9√15
= (21 - 9 )√15
= 12√15

Thus, the expression that is equivalent to the given expression is 12√15. Option D is correct.

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Related Questions

so confused.. I've watched many videos on this and its left me super confused im not even sure if those videos were right please help I dont understand.

Answers

Answer:

Its B :)

Step-by-step explanation:

Look at the graph points and match them with the choices

Solve for x in the literal equation −4 = xy + z.

Answers

Answer:

x = (-4 - z)/y

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of Equality

Step-by-step explanation:

Step 1: Define

-4 = xy + z

Step 2: Solve for x

Subtract z on both sides:                    -4 - z = xyDivide y on both sides:                       (-4 - z)/y = xRewrite:                                                x = (-4 - z)/y

Write the equation of the function on the graph.​

Answers

Answer:

[tex] \huge \boxed {y = |x| + 3}[/tex]

Step-by-step explanation:

Similar to Parabola, except this is Modulus Function.

[tex] \boxed {y = a |x - h| + k} \\ a \: = slope \\ h = move \: \: to \: \: x - axis \\ k = move \: \: to \: \: y - axis[/tex]

From the graph. The graph doesn't have any movement/transformation to x-axis, only y-axis. The graph only shifts up 3 units from y = |x|.

Both slopes are also 1 (from rise/run)

Hence, the answer is

[tex]y = |x| + 3[/tex]

I will give brainliest to the correct answer!

Answers

none of the above , <33

please help me figure out this outfit

Answers

It would be 25% left

Ralph has 25% left of his Gatorade.

3 ÷ 12 = 0.25 -->  25%

-4(-4d-5)
answer pls kkkkk

Answers

Answer:

36

Step-by-step explanation:

-4(-4d-5)

-4x-4=16 (-x-=+)

-4x-5=20

16+20=36

hope this helps

Answer:

16d+20

Step-by-step explanation:

PLEASE HELP! Brainliest and points!!!!

Answers

Answer:

RS = 47 units

Step-by-step explanation:

The midsegment is half the sum of the parallel bases, that is

3x + 5 = [tex]\frac{1}{2}[/tex] ( 2x + 15 + 6x - 37)

3x + 5 = [tex]\frac{1}{2}[/tex] (8x - 22) = 4x - 11 ( subtract 4x from both sides )

- x + 5 = - 11 ( subtract 5 from both sides )

- x = - 16 ( multiply both sides by - 1 )

x = 16

Thus

RS = 2x + 15 = 2(16) + 15 = 32 + 15 = 47

Simplify the following expression.

[tex]\displaystyle{\frac{4x+14}{2}\div\frac{4x+14}{x-6}}[/tex]

Answers

Answer:

[tex]\displaystyle \frac{4x + 14}{2} \div \frac{4x + 14}{x - 6} = \frac{x - 6}{2}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Dividing Fractions - KCF (Keep Change Flip)

Keep the 1st fraction the sameChange the sign from division to multiplicationFlip the 2nd fraction (reciprocate)

Algebra I

Terms/CoefficientsDomains

Step-by-step explanation:

Step 1: Define

[tex]\displaystyle \frac{4x + 14}{2} \div \frac{4x + 14}{x - 6}[/tex]

Step 2: Simplify

Divide [KCF]:                    [tex]\displaystyle \frac{4x + 14}{2} \cdot \frac{x - 6}{4x + 14}[/tex]Multiply:                           [tex]\displaystyle \frac{(4x + 14)(x - 6)}{2(4x + 14)}[/tex]Divide:                             [tex]\displaystyle \frac{(x - 6)}{2}[/tex]

Extra:

If we were to graph this, we would need to watch out for domain restrictions or changes because we are combining 2 domains together when 1 of them has a restriction.

Answer:

(x-6)/2

Step-by-step explanation:

Turn the second fraction upside down and multiply two fractions

5z - 3 >7 or 4z -6< - 10

Answers

Answer:

4z -6< - 10= Z= < -1

5z - 3 >7= Z=< 2

Step-by-step explanation:

You scored 90, 95 and 87 on three test. Write and solve an Equation to find the score on the fourth test so that your mean test is 90.

Answers

90+95+87+z divided by 4 =90 your score on the 4th test is an 88

Which expression is equivalent ?

Answers

Answer:

D

Step-by-step explanation:

When you do a power to a power you multiply

4 * 2/9 = 8/9

Answer:

12^8/9

Step-by-step explanation:

Write an equation in slope-intercept form for the line with slope 7 and y-intercept -8.
Help pleaseeee

Answers

Answer:

y=7x-8

Step-by-step explanation:

y=mx+b........slope-intercept form

where m=slope,b=y-intercept

y=7x-8

Triangle ABC is similar to triangle DEF

Answers

Answer:

A my dude. good luck!!!!!

Answer:

A

Step-by-step explanation:

AC = 5

DF = 15

5 x 3 = 15

BC = 3

EF = 9

3 x 3 = 9

Do you see the pattern? So as you can see the difference between Triangle ABC and DEF is the multiply/divide 3 so if you want to find DE then you should set it up as:

[tex]\frac{4}{3}[/tex] = [tex]\frac{DE}{9}[/tex]  and to check if its right if you solve it you get [tex]\frac{4}{3}[/tex] = [tex]\frac{12}{9}[/tex]

and as you see [tex]\frac{12}{9}[/tex] and [tex]\frac{4}{3}[/tex] are literally the same thing just you need to simplify [tex]\frac{12}{9}[/tex]

Does this graph have 10 or 9 squares, 10 or 9 years, I think I might be going insane

Answers

Answer:

10 years

Step-by-step explanation:

m = 5.71 + 0.25n
j = 4.66 + 0.60n
In the equations above, m and j represent
the price per gallon of milk and orange juice,
respectively, n months after December 31, 2018.
What was the price per gallon of milk when it was
equal to the price per gallon of orange juice?
A) $5.96
B) $6.21
C) $6.46
D) $6.71

Answers

Answer:

C) $6.46

Step-by-step explanation:

Equations

The price per gallon of milk (m) and the price per gallon of orange juice (j) are given below:

m = 5.71 + 0.25n

j = 4.66 + 0.60n

Where n is the number of months after December 31, 2018.

It's required to find the value of n when both prices are equal:

4.66 + 0.60n = 5.71 + 0.25n

Subtracting 0.25n:

4.66 + 0.60n - 0.25n = 5.71

Subtracting 4.66:

0.60n - 0.25n = 5.71 - 4.66

Operating:

0.35n = 1.05

n = 1.05/0.35

n = 3

The price per gallon of milk for n=3:

m = 5.71 + 0.25*3

m = 5.71 + 0.75

m = $6.46

You are at the bottom of a mountain where the temperature is 74°F. The top of the mountain is 5500 feet above you. What is the temperature at the top of the mountain?

Answers

For every 1,000 feet you go up in elevation, the temperature decreases by about 3.3°F

 

Given:

Temperature at the bottom of the mountain is 74°F

The top of the mountain is 5500 feet above you

 

Change (reduction) in temperature is 3.3 X 5500 / 1000

= 18.15°F

 

Temperature at the top of the mountain is 74°F – 18.15°F

= 55.85°F

help anyone ?????????????

Answers

Answer:

4

Step-by-step explanation:

Answer:

1/4 is the answer

Step-by-step explanation:

just look at it show you that it is 1/4

Please help me with this question it is my first grade so I need to get it right on the answer if you’re positive you know

Answers

it's symmetrical because they both look alike on each sides


Landen's front lawn measures 20 feet by 80 feet. He counts to find that there are
120 blades of grass per square inch. How many blades of grass are in the entire
lawn?

Answers

Answer:

[tex]27,648,000[/tex]

Step-by-step explanation:

The area of a rectangle is given by [tex]l\cdot w[/tex]. Landen's 20 feet by 80 feet front lawn therefore has an area of [tex]20\cdot 80 = \fbox{$1600\: \mathrm{ft^2}$}[/tex].

He counts there are 120 blades of grass per square inch. There are [tex]12^2=144[/tex] square inches in one square foot.

Therefore, his lawn has an area of [tex]1600\: \mathrm{ft^2}\cdot \frac{144\:\mathrm{in^2}}{1\:\mathrm{ft^2}}=230,400\:\mathrm{in^2}[/tex].

Thus, there are [tex]230,400\:\mathrm{in^2}\cdot 120=\fbox{$27,648,000$}[/tex] blades of grass in the entire lawn.

Please help me with this

Answers

Answer:

emily 37.44$ Andy 22.15$

Step-by-step explanation:

Andy needs 23 feet multiply 23 feet by 12 you get the amount of inches so 276 inches if the cost for 130 inches is 10.40 we need to increase this number proportionally to 276 So 130+113%=276.9 so 276. Now 10.40x113%=22.15.

Emily needs 13 yards, 13 yards is 39 feet, 39 feet is 468 inches, Now do same thing we did for Andy. 130+360%=468 exactly 10.40+360%=37.44

Someone help me please

Answers

Answer:

The multiple choice question is A

one of the zeros is x=2

So can someone just help me solve this and tell me which terms belong together....ty-

Answers

48, -5, 37, and 5 go together

help bro

Identify the Terms:
3x + 5x + 12 – 3 + 2x

Answers

Answer:

dfadfadsadas

Step-by-step explanation:

Find the value of x.

Answers

Step-by-step explanation:

(3x+24)°=(8x-11)°

24+11=8x-3x

35=5x

x=7

solve 100+0.05p=0.25p

Answers

Answer:

p=500

Step-by-step explanation:

The value of p is 500 in the equation  100+0.05p=0.25p.

What is an equation?

Two algebraic expressions having same value and symbol '=' in between are called as an equation.

Given:

The equation,

100+0.05p=0.25p

To solve the equation:

Simplify the equation,

100 = 0.25p - 0.05p

0.20p = 100

p = 100/0.20

p = 500

Therefore, 500 is the value of p.

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which is a prime number 18 15 19 or 22

Answers

Answer:

19

Step-by-step explanation:

the only way u can get 19 is if you multiply 19x1 but other than that you cant get the number

the other numbers have more than one multiple but 19 only has one multiple

Answer:

19

Step-by-step explanation:

the only factors multiplyed that can make 19 is 1 and 19

15:1, 3, 5, 15

18:1, 2, 3, 6, 9, 18

22:1, 2, 11, 22

19:1, 19

take care

What is the slope of this equation?
y = 3x - 4

Answers

Answer:

m=3 is the slope of this equation y=3x-4

complete the equation
3/10 = 3 divided by ?
must be in fraction form

Answers

Answer:

3/10 ÷ 3 = 3/30 as simplified as 1/10 in fraction form. 3/10 ÷ 3 = 0.1 in decimal form.

22
An airline offers a discount one way flight to New York City for $162 80. If the usual price for the ticket is $185.00, what is the percent discount

Answers

The discount is 12% because 185*0.12=22.2 and to get the discount price you have to subtract the values 185-22.2=162.80.

Number of weeks and amount of money in account chart

Answers

the answer would be C.
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