Mathematics High School

B. Perform the following operations on polynomials.

1. (2x + 3y) - (5x – 2y)
2. (9x²y + 5xy - 2) + (-12x²y – 3xy + 2)
3. (8x + 2y - 3z") + (42* - 5x + 3y)
4.(- 10x*yz? + 5xyz-2) -(10xyz + x - 10 xy)
5. (3x + y) - (2x + z)
pahelp po plss asap​

B. Perform The Following Operations On Polynomials. 1. (2x + 3y) - (5x 2y)2. (9xy + 5xy - 2) + (-12xy

Answers

Answer 1

展开时的公式:

+ + > +

- - > +

+ - > -

- + > -

B. Perform The Following Operations On Polynomials. 1. (2x + 3y) - (5x 2y)2. (9xy + 5xy - 2) + (-12xy
B. Perform The Following Operations On Polynomials. 1. (2x + 3y) - (5x 2y)2. (9xy + 5xy - 2) + (-12xy

Related Questions

solve for x 6(4x+1)=78

Answers

Answer:

x=3

Step-by-step explanation:

here,

6(4x+1)=78

or,24x+6=78

or,24x=78-6

or,24x=72

or, x=72/24or, x=3SO, THE ANSWER IS: 3.

PLEASE HELP ME I BEG OF YOU

Answers

= d+5+d+5+d+5+d+5

= 4d+20

=4(d+5)

I hope this helps ♥☺️

Is the relation a function?? Plzz helppp!!!

(1,19) , (2,23) , (3,23) , (4,29) , (5,31)

Answers

Answer: no

Step-by-step explanation: if the y values are the same they are not functions. :) (ps, x values can be the same in a function!)

Answer:

no :)

Step-by-step explanation:

because (2,23) and (3,23) have the same y function

hope this helps!

what is the length of line segment FH?

Answers

22-15= 7

the answer is 7

Decide whether n = 9 is a solution to
the equation 2+n=7. Write yes or no

Answers

Answer:

No. The answer would be n=5

Step-by-step explanation:

You have to subtract the 2 from both sides to cancel it out on the left side. so you would be doing 7-2, not 7+2

Patrick drank 3/4 liter of water Monday before jogging. He drank 4/5 liter of water after his jog. How much water did Patrick drink altogether? (Write fraction answers as a mixed number like this 2 1/2) He drank _____ liters. *

Answers

Answer: 1¹¹/₂₀ litres

Step-by-step explanation:

The fractions need to be added.

Find a common multiple for them.

Common multiple = 20

Divide the multiple by the denominator of the fraction and multiply the numerator by the result you get:

[tex]= \frac{15 + 16}{20} \\\\= \frac{31}{20} \\\\= 1\frac{11}{20}[/tex]

= 1¹¹/₂₀ litres

Subtract. Express your answer in simplest form.

8 1/4 - 5 2/3

Answers

2 7/12 or 31/12 or 2.583

What happens when a figure is dilated .

Answers

Answer:

A dilation is a transformation that produces an image that is the same shape as the original, but is a different size. A dilation that creates a larger image is called an enlargement. A dilation that creates a smaller image is called a reduction. A dilation stretches or shrinks the original figure.

Water and orange squash is mixed in the ratio 11 : 2 Find how much water is needed to dilute 240 cl of orange squash

Answers

Answer: 1,320 cl

Step-by-step explanation:

Water and orange squash are mixed in the ratio 11 : 2.

This means that at their simplest if using cl, it would take 11cl of water and 2 cl of orange squash for a proper dilution.

If 240 cl of orange sqaush is used and you need to find the amount of water, use direct proportion with x as water.

11     :    2

x     :     240

Cross-multiply:

2x = 11 * 240

x = 2,640 / 2

= 1,320 cl

1. 36.19 to the nearest tenths

Answers

Answer:

36.2

Step-by-step explanation:

Answer:

36.20

Step-by-step explanation:

it's basiclaly another word for 1 decimal place. 9 is bigger than 5 so it rounds 1 to 2.

What is the answer to: y=-2x-5,4x+3y=15 using substitution to solve it..??

Answers

Answer:

Step-by-step explanation:

Plug the first equation into the second

[tex]4x+3(-2x-5)=15\\4x-6x-15=15\\-2x=30\\x=-15[/tex]

y=-2(-15)-5

=30-5

=25

Match each of the equations with their corresponding graph

Answers

Answer:

equation a and graph E

equation b and graph a

equation c and graph b

equation d and graph D

Step-by-step explanation:

Lateral surface area of this gift box

Answers

I think it’s letter C

The sum of 6 times a number and 8 times another number is 12. The difference of those numbers is 9. What are the two numbers

Answers

Answer:

(x,y): (6 , -3) or (-30/7 , 33/7)

Step-by-step explanation:

6x + 8y = 12

x = y + 9 or   y = x+ 9

if x = y+9

6*(y+9) + 8y = 12

14y = -42

y = -3 and x = 6

if y = x+9

6x + 8*(x+9) = 12

14x = -60

x = -30/7   and y = 33/7

can someone please help me with this equation!

Answers

Answer:

$19

Step-by-step explanation:

this is the answer

It’s 19$. Hope that helped

What is the slope of the line shown in the graph?

−1
−2
negative 1 over 2
2

Answers

Answer:

Slope = -2

Step-by-step explanation:

y2-y1/ x2-x1

Find the missing dimension of a triangle with a base of 14.2 yd and a area of 63.9 yd

Answers

Answer:

7.78

Step-by-step explanation:

first you need to divide both numbersthen you nullify the sumyv6bgu6g6ogi5 baka

Yanis worked at a local restaurant over break to save up for a
trip to the Dominican Republic which would cost $460. If she made $15 per hour
and she already had $100 saved, how many hours does she need to work to
make enough for her trip to DR?

Answers

Answer:

24 hours

Step-by-step explanation:

first subtract 100 from 460 to get 360, then divide 360 by 15 which equals 24.

x + 7 = 12
i'm lost pls help me

Answers

Answer:

5

Step-by-step explanation:

12 - 7 = 5

x= 5

.....................................

I need help quickly!!!

You solve a system of two linear equations by substitution. Your work results in a third equation, which leads you to conclude that the system has infinitely many solutions. Which of the following could be the third equation?

The options are:
5=0
-4=-4
2y=14
3x+10=16

Answers

-4=-4.......................

What is the slope of the function?

Answers

Answer:

-4

Step-by-step explanation:

as x goes up one y goes down 4

slope is change in y over change in x

-4/1=-4

The slope of the linear function represented by the table is -6.

To find the slope of the linear function represented by the table, we can use the formula for slope:

Slope (m) = (change in y) / (change in x)

Let's calculate the slope using two points from the table. We'll choose the points (-1, 2) and (2, -16):

(change in y) = -16 - 2 = -18

(change in x) = 2 - (-1) = 3

Slope (m) = (-18) / (3) = -6

Therefore, the slope of the linear function represented by the table is -6.

To know more about linear function:

https://brainly.com/question/29205018


#SPJ6

What is the value of x in the triangle? A. 21 B. 10 C. 7 D. 7√3

Answers

A

Working:
Tan(angle)=opposite/adjacent
Tan60 = x/7root3
x=7root3 x Tan60
Enter in calculator
x=21

PLS HELP!!!!!!Which of the following tables represents the relationship between the circumference and diameter of a
circle?

Answers

Answer:

itanong mo kay kapatid na arlene

It is D. If you multiply D by 3.14 and it matches the C, it is the right one. So it is D

Square root of -8 multiplied by the square root of -32

Answers

The answer is -16 hope that helps

(6,3) -> (-3/2x , 2/3y) -> (x + 6 , y - 4) -> (2/3x , -3/2y)
After these series of transformations, what will the final point be?

Answers

Answer:

Please refer to the attached image.

Find the slope (rate of change) from the table. Simplify if necessary.
X
1
2
3
4
у
-3
-9
-21
-15​

Answers

Answer:

i think it would be 2 because its in the middle of the slope and it would make scence

Step-by-step explanation:

A total of $5000 is invested part of 6% and the remainder at 12% how much is invested at each rate if the annual interest is $480

Answers

Answer:

for 12% it would be $3,000

And, for 6% it would be $2,000

Step-by-step explanation:

The computation of the amount invested at each rate is shown below:

Let us assume the amount invested at 12% be x

So, the $5,000 - x be invested at 6%

The total interest earned is $480

So the equation would be

0.12x + 0.06($5,000 - x)  = $480

0.12x + $300 - 0.06x = $480

0.06x = $80

x = $3,000

So for 12% it would be $3,000

And, for 6% it would be $2,000

The masses of four vehicles and the net forces acting on them as they enter a highway are recorded in the table below. Vehicle Mass (kg) Force (N) Sedan 1400 5250 SUV 1900 5250 Truck 2100 5250 RV 2500 5250 Which vehicle has the greatest acceleration as it enters the highway?

Answers

Answer:

if you use Newton's 2nd rule:

F = m* a (force = mass * acceleration)

you can rearrange the terms to:

a = F/m (acceleration = Force/mass)

which will let you solve for acceleration.

find the value of x and y (5y-23) (2x+13) (3x) 47​

Answers

Answer: I will tell you if you keep reading

Step-by-step explanation:

5y represents the mass of the sun and -23 is the degrees outside. So you have to find how many peices of chocolate bob has eaten in order to find the value (3x) 47

7a + 4- 2a = 7a +- 2a + 4=
. 5a
. 0
. -5
. 5a+4
​

Answers

Step-by-step explanation:

0 would be your answer

first you combine like terms and get 5a+4 on each side then you have to solve the equation.

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