simplify
[tex] \sqrt{15} ( - \sqrt{3n} + 4n)[/tex]
please show all work!​

Answers

Answer 1

Answer:

[tex] \displaystyle - 3 \sqrt{5n} + 4 \sqrt{15} n[/tex]

Step-by-step explanation:

we would like to simplify the following expression:

[tex] \displaystyle \sqrt{15} ( - \sqrt{3n} + 4n)[/tex]

recall distribution property thus:

[tex] \displaystyle - \sqrt{3n} \sqrt{15} + 4n \sqrt{15} [/tex]

remember that,

[tex] \displaystyle \sqrt{a} \sqrt{b} = \sqrt{ab} [/tex]

so assign variables:

[tex]a \implies 3n[/tex][tex]b \implies 15[/tex]

simplify Multiplication:

[tex] \displaystyle - \sqrt{45n} + 4 \sqrt{15} n[/tex]

rewrite 45 as 9×5:

[tex] \displaystyle - \sqrt{9 \times 5n} + 4 \sqrt{15} n[/tex]

utilize the formula:

[tex] \displaystyle - \sqrt{9 } \sqrt{5n} + 4 \sqrt{15} n[/tex]

simplify square:

[tex] \displaystyle \boxed{- 3 \sqrt{5n} + 4 \sqrt{15} n}[/tex]

and we're done!

Answer 2
Laws to be used:-

[tex]\boxed{\sf a(b+c)=ab+bc}[/tex]

[tex]\boxed{\sf \sqrt{p}\sqrt{q}=\sqrt{pq}}[/tex]

Solution

[tex]\\ \rm\longmapsto \sqrt{15}(-\sqrt{3n}+4n)[/tex]

[tex]\\ \rm\longmapsto -\sqrt{15}\sqrt{3n}+4\sqrt{15}n[/tex]

[tex]\\ \rm\longmapsto -\sqrt{3(15)n}+4\sqrt{15}n[/tex]

[tex]\\ \rm\longmapsto -\sqrt{3(3)(5)n}+4\sqrt{15}n[/tex]

[tex]\\ \rm\longmapsto -3\sqrt{5}n+4\sqrt{15n}[/tex]

Or we can break 15n

[tex]\\ \rm\longmapsto -3\sqrt{5}n+4\sqrt{3(5)n}[/tex]

[tex]\\ \rm\longmapsto -3\sqrt{5}n+4\sqrt{3}\sqrt{5n}[/tex]


Related Questions

find the volume of water which can fill a cubic shaped vessel with a side of 16cm in,
i. cubic centimeters
ii. cubic meters
iii. millileters
iv. litres
v. litres and milliletres

Answers

Answer:

litres bro

Step-by-step explanation:

yes the litres answer is correct

Howard pays $327 for one dozen collector’s edition baseball cards. About how much does he pay for each baseball card?​

Answers

Answer:

27.25$

Step-by-step explanation:

1 dozen is 12.

327$ ÷ 12 is 27. 25

Answer:

$27.25.

Step-by-step explanation:

327/12

= $27.25

which expression is equivalent to 2•2 3 •8

Answers

Answer:

2^7

Step-by-step explanation:

2 * 2^3 *8

Rewriting 8

8 = 2^3

2 * 2^3 * 2^3

We know that a^b * a^c = a^(b+c)

2^1 * 2^3*2^3

2^(1+3+3)

2^7

What is s²t-10 if s=-8 and t=[tex]\frac{3}{4}[/tex]

Answers

Answer:

38

Step-by-step explanation:

Substitute the given values into the expression

(- 8)² × [tex]\frac{3}{4}[/tex] - 10

= 64 × [tex]\frac{3}{4}[/tex] - 10

= (16 × 3) - 10

= 48 - 10

= 38

Answer:

38

Step-by-step explanation:

When [tex]s^{2}t-10[/tex], s = -8 and t = 3/4

= [tex]-8^{2} \frac{3}{4} - 10[/tex]

= 64[tex]\frac{3}{4}[/tex] - 10

= (16 * 3) - 10

= 48 - 10

= 38

5 ducks to 30 geese

Answers

Answer:

6

Step-by-step explanation:

I need help With math

Answers

Answer:

Step-by-step explanation:

0.919191....It can be represented as a fraction. You can always make repeating decimals into fractions.

It does not terminate. 91 will go on forever. It's a repeating decimal

We don't know what the second one does. You are likely not supposed to say it repeats; it certainly does not terminate. It cannot be made into a fraction.

0.555 This terminates. It can be written as a fraction.

It can be written as a fraction. It repeats. It contains a repeating decimal which can always be written as a fraction.

last one !! will mark brainliest

Answers

Step-by-step explanation:

1/2x + 10 = 1/4x + 54 Subtract 1/4x on both sides

1/4x + 10 = 54 Subtract 10 on both sides

1/4x = 44 Multiply both sides by 4

x = 176

9514 1404 393

Answer:

  x = 176

Step-by-step explanation:

Clear fractions by multiplying by 4.

  2x +40 = x +216

Subtract x+40.

  x = 176

5.
A bank statement shows transactions of -$10.40 and $8.50.
A. Do these transactions represent deposits or withdrawals?
Plz help

Answers

A negative value is when money is taken out ( withdrawal). A positive value is when money is added to the account(deposit)

-10.40 is a withdrawal

8.50 is a deposit

Answer:

Hint :- Withdrawal is denoted as the -ve sign and deposit are denoted by the +ve sign. This is because if we deposit money then the money increase and if we withdraw then the money decreases.

-10.40

See there is a negative sign. This means it is a withdrawal

8.50

See there is a positive sign. This means it is a deposit

−x2+6zy=
x=10, y=−2, and z=−5.

Answers

Answer:

- 40

Step-by-step explanation:

Substitute the given values into the expression

- x² + 6zy

= - 10² + 6( - 5 × - 2)

= - 100 + 6(10)

= - 100 + 60

= - 40

Solve the formula for the indicated variable.
B = qt+q, fort

Answers

Answer:

Step-by-step explanation:

simplify 9(8x - 9) + 13x

Answers

Answer:

85x-81

Step-by-step explanation:

random word to fill up word counter

Step 1: distribute
9(8x-9)+13x
72x-81 + 13x
Step 2 : combine like terms
72x-81 + 13x
85x-81
Final Answer ? 85x-81

Define the domain and range of the function and state whether it is one-to-one, onto, both or neither.

Answers

Answer:

Neither

Step-by-step explanation:

How do you solve for LMN? I keep getting 15

Answers

Answer:

60°

Step-by-step explanation:

90° = 6x

15° = x

60° = 4x

Answer:

60

Step-by-step explanation:

We know that LMO = 90

2x+4x = 90

6x = 90

Divide by 6

6x/6 = 90/6

x = 15

We want to find LMN = 4x = 4*15 = 60


Which of the choices shows these values arranged from greatest to
least?



.68% 2.43
12/6 2 over -3

Answers

23.7 just playing and this not the ans

Answer:

vdffdersewsesdfdresweseseseeerswesdsfd

Step-by-step explanation:

reterersesdvbvfdderereerereeeewwqwewereddddscdcvvbvfddewww

help!! i really don’t know how to do this!!

Answers

search itup search it up

Each number is two times three less than the previous number.

Answers

A sequence is the pattern or rule that guides the creation of a set. The most common sequence are the arithmetic and the geometric sequence.

A sequence that starts with 0 is: 0, -6, -12, -18.....A sequence that starts with 3 is: 3, -3, -9, -15.....

The complete question illustrates that we build a sequence of number.

Let the n term of the sequence be [tex]T_n[/tex].

2 times 3 less than the previous number means:

[tex]T_n = T_{n-1} - 2 \times 3[/tex]

Where:

[tex]T_n \to[/tex] The current number

[tex]T_{n-1} \to[/tex] The previous number

Assume the first number starts with 0, the next numbers will be:

[tex]T_2 = 0 - 2 \times 3 = -6[/tex]

[tex]T_3 = -6 - 2 \times 3 = -12[/tex]

[tex]T_4 = -12 - 2 \times 3 = -18[/tex]

So, the sequence is:

0, -6, -12, -18.....

Assume the first number starts with 3, the next numbers will be:

[tex]T_2 = 3 - 2 \times 3 = -3[/tex]

[tex]T_3 = -3 - 2 \times 3 = -9[/tex]

[tex]T_4 = -9 - 2 \times 3 = -15[/tex]

So, the sequence is:

3, -3, -9, -15.....

Read more about sequence at:

https://brainly.com/question/3649143

f(x) = |6x| - 2 ; reflection in y-axis
write a function g whose graph represents the indicated transformation of the graph of f.

Answers

Hope this helps you. Thank you....

Using the reflection concept, it is found that the function g is given by:

[tex]g(x) = |6x| - 2[/tex]

-------------------

Reflecting a function f(x) over the y-axis is equivalent to finding a function g(x) defined by: [tex]g(x) = f(-x)[/tex]

-------------------

In this question, the parent function is: [tex]f(x) = |6x| - 2[/tex]

Reflecting over the x-axis:

[tex]g(x) = f(-x)[/tex]

[tex]g(x) = |6(-x)| - 2[/tex]

[tex]g(x) = |-6x| - 2[/tex]

Modulus is an even function, thus [tex]|-6x| = |6x|[/tex], and:

[tex]g(x) = |6x| - 2[/tex]

For more on reflections over the y-axis, you can check https://brainly.com/question/17686579

Subtract. − 11 − ( − 6) brainliest

Answers

Answer:

-5

Step-by-step explanation:

− 11 − ( − 6)

= -11 + 6

= -5

Answer:

-5

Step-by-step explanation:

-11-(-6)

-11--6

NB: --=+

-11+6

-5

Therefore, the answer is -5.

R is between Q and S. If QR = 33.4 and SQ = 80, find RS.

Answers

Hi! I'm happy to help!

To solve this problem, we need to find out what part isn't already listed.

We know that The entire line (SQ) is 80, and the part of the line that isn't RS (QR) is 33.4. The rest of the line must be the difference between 80, and 33.4. To find the difference we use subtraction:

80-33.4

44.6

So, RS is 44.6

I hope this was helpful, keep learning! :D

The calculated length of the segment RS is 46.6

How to determine the length of the segment RS

From the question, we have the following parameters that can be used in our computation:

R is between Q and S.

QR = 33.4 and SQ = 80

using the above as a guide, we have the following:

QR + RS = QS

substitute the known values in the above equation, so, we have the following representation

33.4 + RS = 80

So, we have

RS = 80- 33.4

Evaluate

RS = 46.6

Hence. the length of the segment RS is 46.6

Read more about side lengths at

https://brainly.com/question/29135476

#SPJ3

Ella invests 4000 dollars for 3 years a rate of 1.2% per year compound interest. Calculate the value of her investment at the end of the 3 years.​

Answers

Answer:

Answer is $4145.6

Step-by-step explanation:

formular for compound interest:

[tex]{ \bf{A = P( \frac{r}{100} + 1) {}^{n} }}[/tex]

P is the principle, P = $4000

r is rate, r = 1.2%

n is period, n = 3 years

A is the accumulative amount.

substitute:

[tex]{ \sf{A = 4000( \frac{1.2}{100} + 1) {}^{3} }} \\ \\ { \sf{A = 4000 \times 1.0364}} \\ { \sf{A = 4145.6 \: dollars}}[/tex]

please help me! look at the image and answer.

Answers

Step-by-step explanation:

Find x-intercept (where line cuts the x axis) by substituting y=0.

Find y-intercept by substituting x=0.

Once you get those 2 intercepts, join them with a straight line.

which equation represents a liner function

Answers

Answer:

last choice y= 15 x + 10 is linear function

Plz help will give brainliest

Answers

Answer:

8

Step-by-step explanation:

Since the entire triangle was translated, each point gets shifted 9 left and 3 up which does not alter the triangle measurements, so all sides and angles of triangle' is the same as the original.

a text message plan costs $1 per month plus $0.41 per text. find the monthly cost for x text messages

the monthly cost of x messages is _ dollars

Answers

Answer:

Cost = $1 + $0.41x

Step-by-step explanation



The area A of the rectangle shown

is described by the inequality

12
compound inequality for x.

8x 3/4

Answers

Answer:

There are generally 3 methods to solve inequalities

Step-by-step explanation:

By algebraic method

Example 1: Solve: 2x - 7 < x - 5

2x - x < 7 - 5

x < 2

By the number-line method.

Example 2. Solve  

f

(

x

)

=

x

2

+

2

x

3

<

0

First, solve f(x) = 0. There are 2 real roots x1 = 1, and x2 = - 3.

Replace x = 0 into f(x). We find f(0) = - 3 < 0. Therefor, the origin O is located inside the solution set.

Answer by interval: (- 3, 1)

--------------------- - 3 ++++++++ 0 ++++ 1 ----------------

3.By graphing method.

Example 2. Solve:  

f

(

x

)

=

x

2

+

2

x

3

<

0

.

The graph of f(x) is an upward parabola (a > 0), that intersects the x-axis at x1 = 1 and x2 = - 3. Inside the interval (-3, 1), the parabola stays below the x-axis --> f(x) < 0.

Therefor, the solution set is the open interval (-3, 1)

graph{x^2 + 2x - 3 [-10, 10, -5, 5]}

What is the measure of angle A?
Select the best answer from the choices provided.
A.26°
B.32°
C.64°
D.78°

Answers

Angle B is 90 degrees so angle A and c when added also equal 90:

7x + 8 + 3x + 2 = 90

Simplify:

10x + 10 = 90

Subtract 10 from both sides

10x = 80

Divide both sides by 10

X = 8

Now you have x calculate angle A:

7x + 8 = 7(8) + 8 = 56 + 8 = 64

Answer: C. 64

Answer:

C

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180° , so

7x + 8 + 3x + 2 + 90 = 180 , that is

10x + 100 = 180 ( subtract 100 from both sides )

10x = 80 ( divide both sides by 10 )

x = 8

Then

∠ A = 7x + 8 = 7(8) + 8 = 56 + 8 = 64° → C

For what value of w is 4w = 2w - 8 ?

Answers

Answer:

w= -4

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

Answer:

w is -4

Step-by-step explanation:

[tex]4w = 2w - 8[/tex]

make w the subject:

[tex]4w - 2w = - 8 \\ 2w = - 8[/tex]

divide all sides by 2:

[tex] \frac{2w}{2} = \frac{ - 8}{2} \\ \\ w = - 4[/tex]

The ratio of two numbers is 7:8 .If the first number is 84. Find the second number. ​

Answers

Answer: The second number is 96.

Step-by-step explanation:

Let the second number be x

7/8 = 84/x

or, 7x = 672

or, x = 672/7

so, x = 96

Answer: The second number = 96

Step-by-step explanation:

Given information

Ratio = 7 : 8

First number = 84

Second number = x

Set proportion according to the given information

84 / x = 7 / 8

Cross multiply

7x = 84 × 8

7x = 672

Divide 7 on both sides

7x / 7 = 672 / 7

[tex]\boxed{x=96}[/tex]

Hope this helps!! :)

Please let me know if you have any questions

3/4x + 4/7y = 5/4x -1...solve for y​

Answers

Answer:

[tex] \frac{3}{4} x + \frac{4}{7} y = \frac{5}{4} x - 1 \\ \frac{4}{7} y = \frac{5}{4} x - 1 - \frac{3}{4} x \\ \\ \frac{4}{7} y = \frac{5x - 4 - 3x}{4} \\ \frac{4}{7} y = \frac{2x - 4}{4} \\ \\ y = \frac{2x - 4}{4} \div \frac{4}{7} \\ y = \frac{2x - 4}{4} \times \frac{7}{4} \\ \\ y = \frac{14x - 28}{16} \\ \\ y = \frac{14x}{16} - \frac{28}{16} [/tex]

I hope I helped you^_^

Find the value, n(A), if n(B)=33, n(A intersectionB)=12 and n(A union B) =59

Answers

Answer:

38

Step-by-step explanation:

nAuB=nA+nB-nA∩B. take nA as x

now substitute

59=x+33-12

59=x+21

x=59-21

x=38

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