expand (2a +36) (2a-3b​

Answers

Answer 1
Use the binomial expansion theorem to find each term. The binomial theorem states
(
a
+
b
)
n
=
n

k
=
0

n
C
k

(
a
n

k
b
k
)
(
a
+
b
)
n
=

k
=
0
n

n
C
k

(
a
n
-
k
b
k
)
.
3

k
=
0

3
!
(
3

k
)
!
k
!

(
2
a
)
3

k

(

3
b
)
k

k
=
0
3

3
!
(
3
-
k
)
!
k
!

(
2
a
)
3
-
k

(
-
3
b
)
k
Expand the summation.
3
!
(
3

0
)
!
0
!

(
2
a
)
3

0

(

3
b
)
0
+
3
!
(
3

1
)
!
1
!

(
2
a
)
3

1

(

3
b
)
+
3
!
(
3

2
)
!
2
!

(
2
a
)
3

2

(

3
b
)
2
+
3
!
(
3

3
)
!
3
!

(
2
a
)
3

3

(

3
b
)
3
3
!
(
3
-
0
)
!
0
!

(
2
a
)
3
-
0

(
-
3
b
)
0
+
3
!
(
3
-
1
)
!
1
!

(
2
a
)
3
-
1

(
-
3
b
)
+
3
!
(
3
-
2
)
!
2
!

(
2
a
)
3
-
2

(
-
3
b
)
2
+
3
!
(
3
-
3
)
!
3
!

(
2
a
)
3
-
3

(
-
3
b
)
3
Simplify the exponents for each term of the expansion.
1

(
2
a
)
3

(

3
b
)
0
+
3

(
2
a
)
2

(

3
b
)
+
3

(
2
a
)

(

3
b
)
2
+
1

(
2
a
)
0

(

3
b
)
3
1

(
2
a
)
3

(
-
3
b
)
0
+
3

(
2
a
)
2

(
-
3
b
)
+
3

(
2
a
)

(
-
3
b
)
2
+
1

(
2
a
)
0

(
-
3
b
)
3
Simplify each term.
Tap for more steps...
8
a
3

36
a
2
b
+
54
a
b
2

27
b
3
8
a
3
-
36
a
2
b
+
54
a
b
2
-
27
b
3

Related Questions

Which point represents (5,-3) on the graph?

Answers

Answer:

Point D

because you go 5 to the right and 3 down.

D

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

..

.

.

.

.

.

.

Bruce bought two books. One book costs $4.00 more than three times the other. Together, the two books cost him $72.

Answers

Step-by-step explanation:

The variables can be represented as x and y for the two books.

y=3x+4

x+y=72

Use substitution or elimination to solve the problem. I would personally go with substitution, but its all personal preference.

Graph the given inequality.
-3 > n
How do I do this?

Answers

-3 > n is the same as n < -3 after you flip both sides and flip the inequality.

To graph this, we place an open hole at -3 on the number line. Then we shade to the left to indicate all values smaller than -3. The open hole says "the endpoint is not included". This is because -3 is not smaller than itself.

We would have a filled in circle if we had "or equal to" as part of the inequality, but we don't.

The graph is shown below.

DO NOT ANSWER IF YOU DO NOT KNOW, Will give brainliest, like, comment, and 5 points to answer
Each of these is a pair of equivalent ratios, for each pair explain why they are equivalent. 5:1 and 15:3
10.2 and 25.5
198:1,287 and 2:13

Answers

Step-by-step explanation:

5:1 and 15:3 is equivalent because 5 ⋅ 3 = 15, and 1 ⋅ 3 = 3.

10.2 ⋅ 2.5 = 2.5.5 (This wasn't put into a ratio form.)

198:1,287 and 2:13 are equivalent because 198/99 = 2, and 1,287/99 = 13.

Hannah starting playing video games as soon as she got home from school. She played video games for 20 minutes. Then, it took Hannah 1 hour and 35 minutes to finish her homework. When Hannah finished her homework, it was 4:40 P.M. What time did Hannah get home from school?

Answers

She got home from school at 2:45 pm

Consider the system of equations in standard form. x + 4y = 26, 3x – 4y = 30 What is the best window range for the x-values to determine the solution? What is the best window range for the y-values to determine the solution? What is the exact solution to the system of equations?

Answers

Answer:  x + 4y = 26 Slope = -0.500/2.000 = -0.250

 x-intercept = 26/1 = 26.00000

 y-intercept = 26/4 = 13/2 = 6.50000

Step-by-step explanation: x + 4y = 26

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 6.500 and for x=2.000, the value of y is 6.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 6.000 - 6.500 = -0.500 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

   Slope     = -0.500/2.000 = -0.250

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  x+4y-26  = 0 and calculate its properties

Notice that when x = 0 the value of y is 13/2 so this line "cuts" the y axis at y= 6.50000

 y-intercept = 26/4 = 13/2  =  6.50000

When y = 0 the value of x is 26/1 Our line therefore "cuts" the x axis at x=26.00000

 x-intercept = 26/1  = 26.00000

3x – 4y = 30 Slope = 1.500/2.000 = 0.750

 x-intercept = 30/3 = 10

 y-intercept = 30/-4 = 15/-2 = -7.50000

Notice that when x = 0 the value of y is 15/-2 so this line "cuts" the y axis at y=-7.50000

 y-intercept = 30/-4 = 15/-2  = -7.50000

y = 0 the value of x is 10/1 Our line therefore "cuts" the x axis at x=10.00000

 x-intercept = 30/3  =  10

Answer:

What is the best window range for the x-values to determine the solution?

x-min=-10, x-max = 15

What is the best window range for the y-values to determine the solution?

y-min= 0, y-max = 5

What is the exact solution to the system of equations?

(14, 3)

What is the lowest range of the function shown on the graph?

Answers

Answer:

C.-2

Step-by-step explanation:

The vertex is at (3,-2), this can find the lowest range because since both sides of the function go up from this point there will be no points beneath it. Since the range is Y value the minimum would be -2 because this is the Y value of the vertex. You can check the graph to prove this because there are not any y-values equal to less than -2.

Ella played a math game and had the five cards shown.
-5, -7, 4, -4, 10
Her score was the sum of the numbers on these five cards. What was Ella's score?

Answers

Answer:

-2

Step-by-step explanation:

-5 + -7 = -12

-12 + 4 = -8

-8 + -4 = -12

-12 + 10 = -2

Answer:

Answer:

-5

Step-by-step explanation:

7-4+2-10= -5

Step-by-step explanation:

Does anyone know the answer? It’s due in an hour PLEASE HELPPP!!

Answers

When i did that sort of thing i had a trick. But you are correct.

can someone help me with this
2x+4y+3z=6
x-2y+z=-5
-x-3y-2z=-7
solve for x,y,z

Answers

Answer:

x = -7 2/3, y = 1 1/3 and z = 5 1/3.

Step-by-step explanation:

2x+4y+3z=6    .....  1

x-2y+z=-5        ...... 2

-x-3y-2z=-7      .......3

Add equations 2 and 3 to eliminate x:

-5y - z = -12   .....4

Multiply equation 2 by - 2:

-2x + 4y  - 2z = 10

Add this to equation 1:

8y + z = 16   ........ 5

Now add equation 4 to equation 5:

3y = 4

y = 4/3 = 1 1/3.

Now find z by substituting for y in equation 4:

-5(4/3) - z = -12

z = 12 - 20/3

z = 36/3 - 20/3 = 16/3 = 5 1/3.

Finally, we find x by substituting for y and z in equation 1:

2x + 4*4/3 + 3*16/3 = 6

2x = 6 - 16/3 - 16

2x =  18/3 - 16/3 - 48/3 = -46/3

x = 23/3 =  7 2/3.

2÷5 × -4 what Is the answer please? ​

Answers

Answer:

-1 3/5

Step-by-step explanation:

2÷5 × -4

Work from left to right

2/5 * -4

-8/5

-1 3/5

not really an academic subject lol just a stoopid inquiry
.
.
does anyone else stay up super late even if they're tired? like you haven't "completed" your day yet. just me?... TT_TT pls help

(my sleep schedule is very messed up) :,)

Answers

Answer:

Yes me too! Except I watch movies because I have a feeling they won't be there tomorrow lol

Step-by-step explanation:

Force is a term that means...

O movement around a center point - like throwing

O

strength used in an action - like lifting weights

Ounchanging over time - like balancing

on

O speed over time - like running

>

MUSEU

Answers

Answer: strength used in an action - like lifting weights

Step-by-step explanation:

Force brings about the change in the motion or velocity of a particular object.

Force can be either a push or a pull. For example, when an individual goes to the gym and lifts a weight, the strength applied can also be referred to as a force as it causes a change in the position of the weight.

Daisy made 6 phone calls in 13 hour. At that rate, how many phone calls can she make in 1 hour?

Answers

Answer:At one hour she could make a call(1 call I mean) Because 6 calls in 13 hours means that 5 calls 2 hours with a call 3 hours.

Answer:

She can make almost 1 phone call in an hour (particularly, 46 minutes of call per hour)

Step-by-step explanation:

This problem can be solved by using ratios and proportions.

Step 1: Identify the "knowns" from the "unknown."

It is known that Daisy can make 6 phone calls in 13 hours. Now, the problem is asking for the number of phone calls Daisy can make in 1 hour.

The "unknown" here is the number of phone calls Daisy can make in 1 hour.

Step 2: The values should be plug into the proportion.

             [tex]\frac{6 phone calls}{13 hours}[/tex] = [tex]\frac{x phone calls}{1 hour}[/tex]

Step 3: We can now solve the proportion.

[tex]\frac{6}{13}[/tex] = [tex]\frac{x}{1}[/tex] ⇒x = 0.46 calls per hour (almost 1 call per hour)

In JL, K is the midpoint. The coordinates of J are (2, 2), and the
coordinates of Kare (10, 11). What are the coordinates of L?

Answers

(6,6.5) u can do the math simply

What are the three angle measures in the
triangle shown below?
5x - 7
11x – 4
3x + 1

Answers

All angles in a triangle adds to 180

5x-7+11x-4+3x+1=180
19x-10=180
19x=190
x=10

Substitute x for each equation

5(10)-7=43
11(10)-4=106
3(10)+1=31

If B = 3x^2-x+3and A=x-6, find an expression that equals 2B+3A in standard form?

Answers

Answer:

[tex]6x^{2} +x-12[/tex]

Step-by-step explanation:

All you need to do is multiply equation B by 2 and multiply equation A by 3, then put an addition sign between them and combine like terms after you've distributed what you needed for each one.

0.416... 0.42
Put the correct sing > or < between the numbers in each pair ​

Answers

Answer:

Step-by-step explanation:

0.416<0.42

because minimum value of 0.42=0.420

and 0.416<0.420

PLEASE ANSWERR I CANT GET IT RIGHT

Answers

wait i think i know hold on haha
first, we have to find the slope of the line using the slope formula: m = y2-y1/x2-x1

substitute: -3 + 1/2-0
then, solve: -2/2 = -1
so the slope (m) = -1

next, pick any point (i’m going to use (0,-1)) and plug that in along with the slop into the point slop formula: y-y1 = m(x - x1)

y + 1 = -1(x - 0)

then, just solve

y + 1 = -x + 0
y = -x -1

ANSWER: y = -x -1

Put a lid on it! The supplier is considering two changes to reduce to 1% the

percentage of its large-cup lids that are too small. One strategy is to adjust the

mean diameter of its lids. Another option is to alter the production process,

thereby decreasing the standard deviation of the lid diameters,

a. If the standard deviation remains at o = 0.02 inch, at what value should the

supplier set the mean diameter of its large-cup lids so that only 1% are too

small to fit?

b. If the mean diameter stays at = 3.98 inches, what value of the standard

deviation will result in only 1% of lids that are too small to fit?

c. Which of the two options in parts (a) and (b) do you think is preferable? Justify

your answer. (Be sure to consider the effect of these changes on the percent of

lids that are too large to fit.)

Answers

Answer:

A) 3.996 inches

B) 0.01

C) option B

Step-by-step explanation:

Note: The diameter of the lid is between : 3.95 and  4.05

A) calculate the supplier set mean diameter

std = 0.02 inch

P( x < 3.95 ) = 1% = 0.01

= P ( Z < [tex](\frac{3.95 - u }{0.02})[/tex] ) = P ( Z < -2.3263 ) = 0.01

therefore :

[tex](\frac{3.95 - u }{0.02})[/tex]  = -2.3263

hence : u = 3.996 inches ( mean diameter )

B) At mean diameter = 3.98 calculate the value of std

P ( X < 3.95 ) = 0.01

= P ( Z < [tex]( \frac{3.95-3.98 }{std } )[/tex] )  = P ( Z < -2.3263 ) = 0.01

therefore

[tex]( \frac{3.95-3.98 }{std } )[/tex] = -2.3263

hence std = 0.01 inch

C) option B is preferable because its mean diameter is smaller and  the percent of lids too large to fit is considered more carefully using option B

find the x intercept and y intercept of
3x - 9y =18

Answers

Answer:

y-intercept: (0, -2)

x-intercept: (6, 0)

Step-by-step explanation:

The y-intercept is the value of y when x =0. Substitute 0 for x to find the y-intercept.

[tex]3x - 9y = 18[/tex]

[tex]3(0) - 9y = 18[/tex]

[tex] - 9y = 18[/tex]

[tex]y = - 2[/tex]

When x = 0, y = - 2 so the y-intercept is (0, - 2).

The x-intercept is the value of x when y = 0. Substitute 0 for y in the equation to find the x-intercept.

[tex]3x - 9y = 18[/tex]

[tex]3x - 9(0) = 18[/tex]

[tex]3x = 18[/tex]

[tex]x = 6[/tex]

When y = 0, x = 6 so the x-intercept is (6, 0).

How do I solve for x, y, and z? Please help ASAP.

Answers

Answer:

x = 60 degrees, y = 120 degrees, z = 30 degrees

Step-by-step explanation:

To solve this problem, we must first recognize that the triangle on the left is an equilateral triangle.  This means that all of its side lengths are equal, which in turn means that all of its angles have the same measure.  Since we know the sum of the interior angles of a triangle must be 180, we can write and solve the following:

x + x + x = 180

3x = 180

x = 60 degrees

Next, we should notice that one of the 60 degree angles is supplementary with angle y, which means that their sum should equal 180 degrees.  This lets us write the following equation:

y + 60 = 180

When we subtract 60 from both sides to solve, we get:

y = 120 degrees

Finally, we should notice that the triangle on the right is isosceles.  This means that two of the side lengths (and thus two of the angles) are equal.  This means that the unmarked angle must also measure z degrees since the side lengths corresponding to these two side lengths are equal.  From this information we can write the following equation:

y + z + z = 180

If we substitute the value for y and solve, we get:

120 + 2z = 180

2z = 60

z = 30 degrees

Therefore, the correct answer is x = 60 degrees, y = 120 degrees, and z = 30 degrees.

Hope this helps!

how do you convert fractions to decimals?​

Answers

Answer:

divide the fractions

Step-by-step explanation:

lets say we have 23/5

we can divide 23 by 5 and get a decimal of 4.6

or lets say we got 1/5

divide 1 by 5 and you will get 0.2

75 (1+2z) simplified

Answers

First things first... we will do 75 times 1 which equals 75
Second... we will do 75 times 2z which equals 150z
Now we will put the equation together to get 75 + 150z

So you’re answer would be 75 + 150z

I hope this helps you(:

Write an equation that represents the function (0, 2),(1,3),(2,10),(3,29),(4,66),(5, 127)

Answers

Answer: 7

Step-by-step explanation: because

2(7y−1)= 40 what is y?

Answers

Step-by-step explanation:

[tex]14y - 2 = 40 > > 14y = 42 > > y = 3[/tex]

Answer:

y=3

Step-by-step explanation:

Remember PEMDAS

Write these expressions as the square of a monomial.
81x4 (81x4 means 81x to the power of 4)
121a6 (the 6 means to the power of 6)
0.09y12 (The 12 means to the power of 12)
4/9b6 (The 6 means to the power of 6)
PLEASE HELP ASAP! WILL GIVE BRAINLIEST IF YOU SHOW STEPS!

Answers

Answer:

81x4 = (9x^2)^2, 121a6 = (11a^3)^2, 0.09y12 = (0.3y^6)^2, 4/9b6 = (2/3b^3)^2

Step-by-step explanation:

sqrt of 81 = 9, (we do sqrt because its the inverse to exponents) x^4, x^2 * x^2 = (9x^2)^2

sqrt of 121 = 11, a^6, a^x * a^2 = a^6, x = 3, (11a^3)^2

sqrt of 0.09 = 0.3, y^12 = y^x * y^2, x=6,(0.3y^6)^2

sqrt of 4/9 = 2/3, b^x * b^2 = b^6, x = 3, (2/3b^3)^2

^ = power, * = multiplication

Which is the simplified form of 7+5-12?
O
1
7912
O-/7-912
17
o
لے
N
$12
1
+
1
312

Answers

[tex] \green {\boxed{Answer}}[/tex]

[tex] {r}^{ - 7} + {s}^{ - 12} [/tex][tex] \frac{1}{ {r}^{7} } + \frac{1}{ {s}^{12} } [/tex]

#IfWrongPleaseReport

#StudyTogetherWithMe

#ILoveMath

What is the next fraction in this sequence? Simplify your answer.

2
3
,
3
5
,
8
15
,
7
15
, ...

Answers

Answer:

21

Step-by-step explanation:

                                           

What is the scale factor from figure B to A?

Answers

2.5

Explanation:25/10, 10/4, 21.5/8.6=2.5

Hope it helps
Other Questions
help asap!! answer The following data represent the high-temperature distribution for a summer month in a city for some of the last 130 years. Treat the data as a population. Complete parts (a) through (c). Temperature Lower Limit Upper Limit Days 50-59 50 59 2 60-69 60 69 313 70-79 70 79 1419 80-89 80 89 1503 90-99 90 99 319 100-109 100 109 9Required:Approximate the mean and standard deviation for temperature. Which rational number equals 0 point 1 with bar over 1? complete measure in 2/4 If you can finish this sentence and get it right you be brainliest"I can show you the _____ shining, shimmering, splendid" Which sentence from the text most strongly supports the inference that Jordi Puig is a man with great tact and diplomacy? The image below shows a model of the atom. Which subatomic particle does the arrow inthe image below identify??A. electronB. neutronC. orbitalD. proton PLEASE HELP!!! ILL GIVE BRANLIEST THIS IS DUE TODAY!!! [-4.5 + 12] = what is the anserw I really need the answers or im dead Includes Chickamauga Valley, Armuchee Ridges, Great ValleyNortheast-to-southwest ridgesmining town were one commonlimestone is commonheavily forestedThese are characteristics of which geographic region on the map? Which of the following is the ability of the muscles to life or resist a force?O A Muscular enduranceOB. FlexibilityOC. Muscular strengthOD. Body composition thank all of the people that answered my questions Choose the correct indirect question for the direct question Has the train left?'' A)Have you found out if the train had left? B)Have you found out if the train has left? C)Have you found out if the train left? D)Have you found out has the train left? identifica los siguientes elementos a qu medio de comunicacin pertenecen.A. Lenguaje informalB. PrecisinC. Cabina de radioD. E. Sptimo arteF. Informar positivamenteG. Lenguaje visualmente dinmico.H. Cortometraje. Which inequalities are true? Select the four correct answersWill mark Brainiest List the names of the regions labeled on the map above. You have learned that President George Washington was not a fan of political parties. What is YOUR OPINION of separate political parties? SUPPORT YOUR OPINION with three ideas of why you support political parties or why you do not. MARK BRAINLIEST AND 12 POINTS Is the relation a function?{(1,5),(1,7),(3,9),(4,11)}