plz help will mark as brainliest ​

Plz Help Will Mark As Brainliest

Answers

Answer 1

Step-by-step explanation:

a)

[tex](3x-4y+2z)^2\\=9x^2+16y^2+4z^2+2.3.(-4)xy+2.3.2xz+2.(-4).2yz\\=9x^2+16y^2+4z^2-24xy+12xz-16yz[/tex]

b)

[tex](4a+1)^3\\= 64a^3+3.(4a)^2.1+3.4a.1^2+1\\=64a^3+48a^2+12a+1\\[/tex]


Related Questions

Angle measurements 84 degree help find out what’s the other side degree

Answers

Answer: 84 degrees

Step-by-step explanation: because of corresponding angles

In base 2, what is the value of 1011₂ + 10111₂

Answers

1011₂ + 10111₂

= (1000₂ + 10₂ + 1₂) + (10000₂ + 100₂ + 10₂ + 1₂)

= 10000₂ + 1000₂ + 100₂ + 2 (10₂) + 2 (1₂)

= 10000₂ + 1000₂ + 100₂ + 2 (10₂) + 10₂

= 10000₂ + 1000₂ + 100₂ + 100₂ + 10₂

= 10000₂ + 1000₂ + 2 (100₂) + 10₂

= 10000₂ + 1000₂ + 1000₂ + 10₂

= 10000₂ + 2 (1000₂) + 10₂

= 10000₂ + 10000₂ + 10₂

= 2 (10000₂) + 10₂

= 100000₂ + 10₂

= 100010₂

Terry sees this offer:
Refurbished Phone = 35% off
Now only £78

How much was the phone before the discount?

Answers

The phone was 120 (1%=1.2 so 1.2x100)

D
Y
T
What criteria can be used to prove these two triangles congruent?
HL
SSA
ASA
AAS
Previous

Answers

Answer:

AAS

Step-by-step explanation:

Answer:

Angle-side-angle is a rule used to prove whether a given set of triangles are congruent.

The ASA rule states that:

If two angles and the included side of one triangle are equal to two angles and included side of another triangle, then the triangles are congruent.

Angle-Angle-Side (AAS) Rule

Angle-side-angle is a rule used to prove whether a given set of triangles are congruent.

The AAS rule states that:

If two angles and a non-included side of one triangle are equal to two angles and a non-included side of another triangle, then the triangles are congruent.

In the diagrams below, if AC = QP, angle A = angle Q, and angle B = angle R, then triangle ABC is congruent to triangle QRP.

(4/9)^-1=


A. -4/9

B. 9/4

C. -9/4

Answers

Answer: 9/4

Step-by-step explanation: Think of [tex](\frac{4}{9})^{-1}[/tex]as [tex]\frac{4^{-1} }{9^{-1}}[/tex].

Now, we can change 4⁻¹ to 4¹ by moving it to the denominator and

we can change 9⁻¹ to 9¹ by moving it to the numerator.

So we have 9¹/4¹ which simplifies to 9/4.

i need help on this assignment

Answers

Given:

A figure of a rectangular prism with length l, width w and height h.

To find:

The surface area of the rectangular prism.

Solution:

The product of twice of the length l and the width w is:

[tex]2\times l\times w=2lw[/tex]          ...(i)

The product of twice of the length l and the height is:

[tex]2\times l\times h=2lh[/tex]           ...(ii)

The product of twice of the width w and the height h is:

[tex]2\times w\times h=2wh[/tex]       ...(iii)

The surface area of the prism is the sum of (i), (ii) and (iii). So, the expression for the surface area is:

[tex]A=2lw+2lh+2wh[/tex]

[tex]A=2(lw+lh+wh)[/tex]

Therefore, the required expression is [tex]2(lw+lh+wh)[/tex].

25+ POINTS WILL MARK BRAINLIEST

Answers

Answer:

Step-by-step explanation:

perimeter of rectangle=a+b+c

=3x+3x+15

=6x+15

if perimeter of rectangle is 90,

perimeter=a+b+c

90=3x+3x+15

90-15=6x

75/6=x

12.5=x

Answer:

X=12.5

Step-by-step explanation:

3x+3x+15

If it equalls 90 then write it as 6x+15=90

Now isolate X.

6x+15=90

6x=75

x=12.5

CHECK UR WORK

(3*12.5)+(3*12.5)+15=90

37.5+37.5+15=90

75+15=90

90=90

Need help with figuring out this zingoes problem asap, willing to give brainliest!

Answers

Answer:

The yellow trapezoid, blue rectangle, and whatever that purple thing is are zingoes

Step-by-step explanation:

As far as I can tell, all the correct examples are

1) Symmetrical

2) Have a line splitting them symmetrically and does not go above or below the shape (Does that make sense?)

The wrong examples don't have any of the characteristics told above. For example, the square would be wrong because it doesn't even have a line

(P.S- This isn't my picture, just found it on the web. Shout out to whoever owns this)

The diameter of a strand of rope is 1.2 ×10^-3 inch. The diameter of a strand of floss is 2.0 ×10^-4 inch.
How much longer is the diameter of the strand of rope than the diameter of the strand of floss?
A. 2.0 ×10^-7 inch
B. 1.0 ×10^-7 inch
C. 2.0 ×10^-3 inch
D. 1.0 ×10^-3 inch

Answers

Answer:

D. 1.0 x 10^-3

Step-by-step explanation:

1.2 ×10^-3 = .0012

2.0 ×10^-4 = .0002

.0012

.0002

_______

.0010 = 1.0 x 10^-3

Answer:D

Step-by-step explanation:

Al precio de un producto se le aplica un descuento del 30% y al nuevo precio otro descuento del 30% cual es el descuento total?

Answers

Answer:

The total discount is 51%.

Step-by-step explanation:

A 30% discount is applied to the price of a product and another 30% discount to the new price. What is the total discount?

Let the price is p.

After first discount, the price is

= 70% of p = 0.7 p

After second discount, the price is

= 70% of 0.7 p

= 0.7 x 0.7 p

= 0.49 p

So, let the total discount is d.

[tex]d = \frac{p - 0.49 p}{p}\times 100 = 51%[/tex]


Which expression makes the equation true for all values of x?
16x – 16 = 4(.? _)
A 4x - 4
B 4x - 16
C 2x - 2
D 12x - 12

Answers

Answer:

16x - 16 = 4(4x - 4) Step-by-step explanation:

which expression is equivalent to 4(3x+2)-5x

A = 7x+2
B = 7x+8
C+12x+2
D=2x+8

Answers

Answer:

B) 7x + 8

Step-by-step explanation:

distribute 4 first to get:

12x + 8 - 5x

combine like terms to get:

7x + 8

It would be B hope this helps

Find the inverse of f(x)

Answers

Answer:

[tex]\huge\boxed{A.\ f^{-1}(x)=\dfrac{x-3}{5}}[/tex]

Step-by-step explanation:

[tex]f(x)=5x+3\to y=5x+3\\\\\text{exchange}\ x\ \text{with}\ y\\\\5y+3=x\\\\\text{solve for}\ y\\\\5y+3=x\qquad|\text{subtract 3 from both sides}\\\\5y+3-3=x-3\\\\5y=x-3\qquad|\text{divide both sides by 5}\\\\\dfrac{5\!\!\!\!\diagup y}{5\!\!\!\!\diagup}=\dfrac{x-3}{5}\\\\y=\dfrac{x-3}{5}\to f^{-1}(x)=\dfrac{x-3}{5}[/tex]

Goods bought for $1500 had to be sold off at a loss of 30%. The selling price was ?
A $1950
B $1050
C $450
D $300

Answers

Answer:

B $1050

Step-by-step explanation:

Determine 30% of the price

1500 * 30%

1500 *.30

450

Subtract this from the price

1500-450

1050

Answer:

B $1050

Step-by-step explanation:

0.3 x 1500 = 1050

9
State the various transformations applied to the base function f(x) = [x] to obtain a graph of the function g(x) = -[x]+2
A reflection about the x-axis and a vertical shift upward of 2 units.
A reflection about the y-axis and a vertical shift downward of 2 units.
A reflection about the y-axis and a vertical shift upward of 2 units.
A reflection about the x-axis and a vertical shift downward of 2 units.

Answers

Answer:the answer is B

Step-by-step explanation:

A T.V. is regularly priced at $600, but it is on sale for 20% off. What's the sale price?

Answers

Answer:

$480

Step-by-step explanation:

multiply the normal price $600 by 20 then divide it by one hundred

the discount is $120

the sales price is subracting the discount of $120 from the original price of $600 then get $480 as the sales price.

Answer:

Step-by-step explanation:

Method 1:  Subtract 20% from 100%, obtaining 80%, and then multiply the regular price ($600) by the decimal equivalent 0.80.  We get $480 as the sale price.

Method 2: Calculate the amount of the discount by multiplying $600 by 0.20, obtaining $120.  Then subtract this discount from the regular price, $600, obtaining $480.

Jaiver bought a new TV for 479.76. He will make equal payments each month for 2 years . Estimate each payment.

Answers

Answer:

$19.99

Step-by-step explanation:

There are 12 months in a year, so in 2 years, there are 24 months.

Find how much each payment will be by dividing the cost by 24:

479.76/24

= 19.99

So, each payment will be $19.99

audio
For the canned food drive, 6 students each collected the same number of cans. They collected 48 cans in all. How many cans did each student collect?

Answers

8 cans

48/6=8

since each student collected equal amounts then divide the number of cans by the number of students

The vertices of quadrilateral LMNP are L(-1 , 7), M(4,9), N(8, -1), and P(3,-3). Using the distance or slope formula(s), determine the most precise classification of LMNP: parallelogram, rectangle, rhombus, or square​

Answers

Answer:

Its a rectangle.

Step-by-step explanation:

After graphing the points, we can quickly figure out it cant be a square.

Then, when we draw the sides, we see it has to be a rectangle, since each side has a perfect 90 degree angle, and the opposite side lengths are parrelel.

Answer:

Step-by-step explanation:

11. The length of a rectangle is decreased by 25%
and the width is increased by 40%. Calculate
the percentage change in the area of the
rectangle.

Answers

Answer:

Step-by-step explanation:

given.quesion.

The length of a rectangle is decreased by 25% and the width has increased by 40% calculate the percentage change in the area of the rectangle

to. find.

area of the rectangle

given

decreased. 25•/•

increased.40•/•

solusion

Length = L

Breadth = B

Original area = L x B

New area = A = L x (1 - 25%) x B x (1 + 40%)

A = L x B x 0.75 x 1.40 = L x B x 1.05

Therefore the area of the rectangle has increased by 5%.

required answer.

5•/•

answer. with. explamation. in. attachment.

hope. it's. helps. you.

Can someone pls give me the answer to this?

Answers

it would be 10

Step-by-step explanation:

once you solve the problem which should equal up to 3000 then you would divide 30000÷3000 and get the answer of 10

What’s the answer?? To question 4

Answers

Answer:

jkjkjkjkjkjk

Step-by-step explanation:

jkjkjkjkjkjkj

Solve the system of equations.

3x – 7y = 5
9y = 5x + 5

Answers

The answer X= -10 y= -5
Hope this is helpful

Simplify 45÷2×8-12+42
Please show working

Answers

Answer:

210

Step-by-step explanation:

Lets use BEDMAS (Brackets, Exponents, Division, Multiplication, Addition, Subtraction)

45 ÷ 2 = 22.5

22.5 × 8 = 180

180 - 12 = 168

168 + 42 = 210

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Have a great summer :)

6
a
4
+
5
b
3
when
a
=
3
and
b
=

3

Answers

Answer:

27

Step-by-step explanation:

4a + 5b

12 + 15

=27

Simplify (-4a^5b) (2a^2b)

Answers

Answer:

[tex]-8a^{7b}[/tex]

Step-by-step explanation:

[tex](-4 a^{5b}) (2a^{2b}) = -(2^2 a^{5b}) (2a^{2b})\\[/tex]

                    [tex]= -(2 ^2 \times 2) \times a^{5b + 2b}\\\\= -(2 ^{2+1}) \times a^{7b}\\\\=-(2^{3}) \times a^{7b}\\\\= - 8 a^{7b}[/tex]

The roots of the equation 2x² – 5 = 0 are
1) imaginary
2) real, rational, and equal
3) real, rational, and unequal
4) real and irrational
Will give brainlest to the correct answer

Answers

Answer:

4

Step-by-step explanation:

x = root under 5/2

so it is real and irrational number

Help me please???!!!!!!!

Answers

Answer:

im not sure

go on volume calculator

Step-by-step explanation:

What is true of the type of angle in this lesson? It measures half the sum of the arc it intercepts. It measures twice the sum of the arc it intercepts. It measures half the sum of the arcs it intercepts. It measures twice the sum of the arcs it intercepts.

Answers

Answer:

Step-by-step explanation:

Answer: it is C because it is true of the type of angle in this lessonc. It measures half the difference of the arcs it intercepts.

CAN SOMEONE HELP ME WITH THIS PLEASE AND THANK YOU.

Answers

Answer:

8 17/18

Step-by-step explanation:

3 5/6 + 5 1/9

23/6 + 46/9

161/18

8 17/18

In mixed form.. 8 whole number 17/18
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write 4 lessons learnt from the battle of badar Name the main hormone that causes the tropic response movement of pollen tubes towards ovule. If I have a b in my class and I fail my finals what would my grade go down to? Which ordered pair is located on the X-axis? A) (0,-5) B) (-2) C) (3,0) D) (-1,5) Point M is located at (3,-2) on the coordinate plane. Point M is reflected over thex-axis to create point M'. What ordered pair describes the location of M'? Assign sum_extra with the total extra credit received given list test_grades. Iterate through the list with for grade in test_grades:. The code uses the Python split() method to split a string at each space into a list of string values and the map() function to convert each string value to an integer. Full credit is 100, so anything over 100 is extra credit.Sample output for the given program with input: '101 83 107 90'Sum extra: 8(because 1 + 0 + 7 + 0 is 8)user_input = input()test_grades = list(map(int, user_input.split())) # test_grades is an integer list of test scoressum_extra = 0 # Initialize 0 before your loop''' Your solution goes here '''print('Sum extra:', sum_extra) A box with a square base and open top must have a volume of 171500 c m 3 . We wish to find the dimensions of the box that minimize the amount of material used. First, find a formula for the surface area of the box in terms of only x , the length of one side of the square base. [Hint: use the volume formula to express the height of the box in terms of x .] Simplify your formula as much as possible. When she was nine, my daughter Kathleen asked if I had ever killed anyone. She knew about the warshe knew I'd been a soldier. "You keep writing war stories," she said, "so I guess you must've killedsomebody." It was a difficult moment, but I did what seemed right, which was to say, "Of course not," and thento take her onto my lap and hold her for a while. Someday, I hope, she'll ask again. But here I want to pretendshe's a grown-up. I want to tell her exactly what happened, or what I remember happening, and then I want tosay to her that as a little girl she was absolutely right. This is why I keep writing war stories:The author most likely includes paragraph 1 in order to do the following:To use a flashback to show how the story is a reflection of his past?To show how the actions of the narrator affect his daughter?To explain the author's motivation for becoming a writer?To show how the author's narrative techniques make him a great writer? When looking at your pictures in order, describe the changes to the area. What changes happened first? Why do you think that is?answer: There are changes in the climate which result in the environment changing. 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I've tried differnt forms like the one provided below but they all have errors according to the program. it tells me that i have to place ; .import java.util.Scanner;public class LabProgram {public static void main(String[] args) {userNum= int(input())divNum= int(input())# calculating the division three timesuserNum=userNum//divNum#i have used end=' ' so that it does not produce new line# instead of that it produce spaceprint(userNum,end=' ')userNum=userNum//divNumprint(userNum,end=' ')userNum=userNum//divNumprint(userNum,end=' ')}}Errors:Program errors displayed hereLabProgram.java:5: error: '.class' expected userNum= int(input()) ^ LabProgram.java:5: error: ';' expected userNum= int(input()) ^ LabProgram.java:6: error: '.class' expected divNum= int(input()) ^ LabProgram.java:6: error: ';' expected divNum= int(input()) ^ LabProgram.java:7: error: illegal character: '#' # calculating the division three times ^ LabProgram.java:7: error: ';' expected # calculating the division three times ^ LabProgram.java:7: error: ';' expected # calculating the division three times ^ LabProgram.java:9: error: illegal character: '#' #i have used end=' ' so that it does not produce new line ^ LabProgram.java:9: error: ';' expected #i have used end=' ' so that it does not produce new line ^ LabProgram.java:9: error: ';' expected #i have used end=' ' so that it does not produce new line ^ LabProgram.java:9: error: ';' expected #i have used end=' ' so that it does not produce new line ^ LabProgram.java:9: error: ';' expected #i have used end=' ' so that it does not produce new line ^ LabProgram.java:9: error: ';' expected #i have used end=' ' so that it does not produce new line ^ LabProgram.java:10: error: illegal character: '#' # instead of that it produce space ^ LabProgram.java:10: error: ';' expected # instead of that it produce space ^ LabProgram.java:10: error: ';' expected # instead of that it produce space ^ LabProgram.java:10: error: ';' expected # instead of that it produce space ^ LabProgram.java:11: error: ';' expected print(userNum,end=' ') ^ LabProgram.java:12: error: ';' expected userNum=userNum//divNum ^ LabProgram.java:13: error: ';' expected print(userNum,end=' ') ^ LabProgram.java:14: error: ';' expected userNum=userNum//divNum ^ LabProgram.java:15: error: ';' expected print(userNum,end=' ') ^ 22 errors PLEASE HELP 50 POINTSWhat is the inverse of y= 1/3 * 7^x-1 Please please help with this no links please El cajero tiene que poner el dinero en __________. ala entrada bla salida cla caja del dinero 1. The first compact microwave ovens were sold in 1960. Not everybody used them until the 1980's.a. for b. andc. ord. comma/but E. Because 2. For centuries people ate with their hands. A change finally occurred in the 1100's when peopleused utensils.a. for b. andc. ord. comma/bute. because3. My mom went to the grocery store. She forgot her purse.a. for b. andc. ord. comma/but e. because4. My apartment has 2 bedrooms. My apartment has 1 1/2 bathrooms.a. forb. andc. ord. comma/bute. because5. My daughter is having a birthday party. She is five years old today.a. for b. andc. ord. comma/but e. because6. I would like to go to the movies. My car does not work.a. forb. andd. comma/but e. because7. I have a computer. I have a printer.a. comma/ but b. and c. ord. but e. because