Find the sum or difference of the polynomials. Write your answer in descending order (2x2 + 5x – 12) – (-4x2 + 2x+6)

Answers

Answer 1

Answer:

The correct answer is 6x^2 + 3x - 18


Related Questions

What is the simplified form of the following expression?
5 58-18-2-82
02.12
o 5.82
o 9.2
O 152

Answers

Answer:

[tex]5 \sqrt{2} [/tex]

it’s the second one in the picture

Please help me solve this question

Answers

Answer:

A = 16 units²

Step-by-step explanation:

The area (A) of a parallelogram is calculated as

A = bh ( b is the base and h the perpendicular height )

The right triangle on the left is a 3- 4- 5 ( Pythagorean triple )

Then b = 4 and h = 4 , so

A = 4 × 4 = 16 units²

Solve for the triangle: ABC
A: 90 degrees
B: 6 feet
C: 10 feet

Answers

I would say A degrees, bc it’s an angle, but I would need more information

find the coordinates of the points which divide the join X(-1,7) and Y(4,-3) in the ratio of 7:2.​

Answers

Answer:

(26/9 , -7/9)

Step-by-step explanation:

Here,

let the points be

X(-1,7) = (x1, y1)

Y(4,-3) = (x2,y2)

and let the ratio be...

m:n = 7:2

and.. let the point that divides the line be

P(x,y)

now using the section formula for internal division..

P(x,y) = ( m.x2 + nx.1 / m+ n , my2+ny2/m+n )

= ( 7.4+2.-1 / 7+2 , 7.-3 + 2.7/7+2 )

= ( 26/9 , -7/9 )

what are the points for the equation y +2 = - 3/4 (x+4)

Answers

Answer:A(1,-5)

B(6,-8)

Step-by-step explanation:

Simplify. 1224√
THIS IS A KEYSTONE ALGEBRA THING LOL

Answers

Answer:

6[tex]\sqrt{34}[/tex]

Step-by-step explanation:

[tex]\sqrt{1224}\\[/tex] = [tex]\sqrt{36*34}[/tex] = 6[tex]\sqrt{34}[/tex]

The number of days (d) is equal
to the dividing of the number of hours (h) and 24.
A. d = h - 24
B. h = 24 d
C. h = 24-h
D. h = 24 + h

Answers

Answer:

B

Step-by-step explanation:

[tex]d \: = \frac{h}{24} [/tex]

[tex]h \: = 24d[/tex]

When the length of each side of a square is increased by 5 cm, its area is increased by 895 cm2. Find the length of a side before the increase.

The length of a side before the increase is...

Answers

Answer:

Step-by-step explanation:

Increasing the side length by 5 is represented as s + 5. To get the area of a square we multiply side times side: [tex](s+5)^2=s^2+10s+25[/tex]

The area of a square is s². If we are increasing this area s² by 895, then to represent this we have s² + 895.

Put that together into an equation:

[tex]s^2+10s+25=s^2+895[/tex] and simplify to

10s = 870 so

s = 87

Let's check that. The area before the addition to the side is 87*87 = 7569; the area after the addition of 5 cm is 92*92 = 8464. The difference is

8464 - 7569 = 895 so we did good!

Complete the equations below. 1.86 \div 2 =1.86÷2=1, point, 86, divided by, 2, equals \text{ hundredths}\div 2 hundredths÷2start text, space, h, u, n, d, r, e, d, t, h, s, end text, divided by, 2 1.86 \div 2 =1.86÷2=1, point, 86, divided by, 2, equals \text{ hundredths} hundredths start text, space, h, u, n, d, r, e, d, t, h, s, end text 1.86 \div 2 =1.86÷2=1, point, 86, divided by, 2, equals

Answers

Answer:

[tex]1.86 \div 2 = 0.93[/tex]

Step-by-step explanation:

The correct form of the question is:

Complete the equations below.

[tex]1.86 \div 2 =[/tex]

Required

Solve

Start from left to right

[tex]1 \div 2 = ??[/tex] --- this will give a fraction.

So, we append the next digit

[tex]1.8 \div 2 = 0.9[/tex]

Next:

[tex]0.06 \div 2 = 0.03[/tex]

Bring the results together:

[tex]1.86 \div 2 = 0.9+ 0.03[/tex]

[tex]1.86 \div 2 = 0.93[/tex]

Please anyone help me

Answers

Math Problem

If die is rolled two times, find the probably of getting "1'twice.

Math Answer

[tex] {1}\{36} [/tex]

Feel fre e too ask me

Please understand it

#BrainliestBunch

Evaluate 4x-2 when x = 5.
A. 18
B. 12
C. 43
O D. 22

Answers

Answer:

A: 18

Step-by-step explanation:

1. 4(5) - 2

2. 20 - 2

3. 18

In algebra when we always see a number with an “x” it’s a multiply.so 4x would be 4 multiply by x in this case x is 5.
4 multiply by 5 will give you 20 then you just subtract the 2 which is 18 so the answer will be A :)

please help. i need this done today

Answers

Answer:

herlojffhgdxvjdxhyeb olis the tim view on the euros 2020 final

Please help me!!!!! You have to match the slope of each line

Answers

Answer:

it would be line to zero slope that's all I can do for u pal maybe..

Find y.
PLEASE HELP ASAPPPP

Answers

Answer:

y = 4

Step-by-step explanation:

[tex]\frac{sin(90)}{4\sqrt{2} } = \frac{sin(45)}{y}[/tex]

Answer:

y = 4

Step-by-step explanation:

Using the cosine ratio in the right triangle and the exact value

cos45° = [tex]\frac{1}{\sqrt{2} }[/tex] , then

cos45° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{y}{4\sqrt{2} }[/tex] = [tex]\frac{1}{\sqrt{2} }[/tex] ( cross- multiply )

y × [tex]\sqrt{2}[/tex] = 4[tex]\sqrt{2}[/tex] ( divide both sides by [tex]\sqrt{2}[/tex] )

y = 4

solve for x. round to the nearest tenth of a degree, if necessary.​

Answers

x=30°

Answer:

Cos x°=adjacent/hypotenuse

Cos x°=45/52

x°=Cos-¹(45/52)

x°=30°

A chocolate chip cookie recipe requires three and one third cups of flour to one cup of chocolate chips. If one and one quarter cups of flour is used what quantity of chocolate chips will be needed according to the recipe?

Answers

Answer:

3/40 cup

Step-by-step explanation:

3 1/3 =10/3

10/3 to 1 is 1/4 to x

i then proceeded to use the butterfly method to find the answer

Identify the slope (m) and the y-intercept (b) of each line a) y= x+7 slope = y intercept = b) y = -3x slope = y intercept =

Answers

Answer:

a) y= x+7

The slope is 1 and the y intercept is 7

b) y = -3x

The slope is -3 and the y intercept is 0

Step-by-step explanation:

The slope intercept form of the equation of a line is

y = mx+b where m is the slope and b is the y intercept

a) y= x+7

The slope is 1 and the y intercept is 7

b) y = -3x

The slope is -3 and the y intercept is 0

There are 5 seats in a bus. In how many different ways if there are 5 children. How many different ways are there if there are 4 children, and how many different ways are there if there are 3 children.

Answers

Answer:

5=1

4=5

i don't really know for the third one sorry but it's more than 11

Step-by-step explanation:

Which of the following accurately describes the median of a set of data? Multiple choice question. The midpoint of the data when it is arranged in order. The difference in the largest and smallest values. The most numerous observation in a set of data. The arithmetic average of the values in the set.

Answers

Answer:

The midpoint of the data when it is arranged in order.

Step-by-step explanation:

Median can be described as the number that occurs in the middle of a set of numbers that are arranged either in ascending or descending order

For example, the median of the following set of numbers is 5

1, 2, 5, 10, 20

Range is the difference between the highest and lowest values of a set of observations

Range = highest value - lowest value

Mean is the average of a set of numbers. It is determined by adding the numbers together and dividing it by the total number

Mean = sum of the numbers / total number

A jar is filled with 74 different colored marbles, 10 of which are red, 38 of which are blue, and 26 of which are green. A player is asked to draw a single marble from the jar and if they draw a red marble they will win $20, if they draw a blue marble they will lose $10, and if they draw a green marble they will lose $5. You may round your answer to the nearest cent

Answers

Solution :

Colored marble            Prize

     Red ----  10               20

    Blue --- 38                 10

   Green --- 26               5

P(red)  =  10/74  =  5/37

P(blue)  =  38/74  =  19/37

P( green)  = 26/74  =  13/37

Therefore,

 X      →     Red          Blue      Green

P(X)           5/37        19/37      13/37

The expected values are :

[tex]$20 \times \frac{5}{37} - 10 \times \frac{19}{37} - 5 \times \frac{13}{37}[/tex]

= -4.189

Thus it is not profitable to play the game.

Mr. Serpe started with $200. He has a hole in his pocket and he lost $2 every day for a week. He then found $150. How much money does he have?

Answers

Answer:

336

Step-by-step explanation:

2x7=14, so 200-14=186, then 186+150=336

find the missing length indicated.​

Answers

Answer:

Step-by-step explanation:

x is the geometric mean because it is a part of both the small triangle on the left (with base 81) and the whole triangle (with base 225). Setting up the geometric means formula:

[tex]\frac{81}{x}=\frac{x}{225}[/tex] and cross multiply to get

[tex]x^2 =18225[/tex] so

x = [tex]\sqrt{18225}[/tex] and

x = 135

Which division is shown by the model?

Answers

Step-by-step explanation:

where the model step by step explanation

Can somebody help me Answer to this ??

Answers

X=7

c is the answer:

[tex]3x + 50 = 10x + 1 \\ 10x - 3x = 50 - 1 \\ 7x = 49 \\ x = \frac{49}{7} \\ x = 7[/tex]

X=7! Math always sucks

How much less is 17km than 24.6km?​

Answers

24.6-17= 7.6 (km) i think so

Answer:

[tex]7.4km[/tex]

Step-by-step explanation:

[tex]24.6km - 17km \\ = 7.4km[/tex]

hope this helps you.

Please help me multiply this

Answers

Answer:

(x-4y)(x-3y) ÷(x+8y)(x-8y)×(x+8y)÷3(x-3y)

=3(x-4y)÷(x-8y)

A ball is dropped from a height of 9 feet and allowed to bounce. Each time the ball bounces, it reaches a height that is23the height of the previous bounce. How many times will the ball be exactly 3 feet above the ground? ​

Answers

I'm assuming you meant to say "it reaches a height that is 2/3 the height of the previous bounce".

We have a geometric sequence with a = 9 as the first term and r = 2/3 as the common ratio.

The nth term is a*(r)^(n-1) = 9*(2/3)^(n-1)

Set this equal to 3 and solve for n. You'll need logs to isolate the exponent.

9*(2/3)^(n-1) = 3

(2/3)^(n-1) = 3/9

(2/3)^(n-1) = 1/3

log[ (2/3)^(n-1) ] = log(1/3)

(n-1)*log(2/3) = log(1/3)

(n-1)*(-0.17609) = -0.47712

n-1 = (-0.47712)/(-0.17609)

n-1 = 2.7095235

n = 2.7095235+1

n = 3.7095235

Unfortunately we don't get a whole number. We can see that the terms of the sequence are:

9, 6, 4, 2.667

Each term is found by multiplying 2/3 by the previous term.

We don't land exactly on "3". The closest we get is 2.667 approximately.

So to answer the question, there is no way to get to exactly 3 feet above the ground based on a whole number of bounces.

Viết khai triển theo công thức nhị thức Niu-tơn (x + 1) ^ 5

Answers

Answer:

x^5+5x^4+10x³+10x²+5x+1

Step-by-step explanation:

find the sum or difference of the polynomials. Write your answer in descending
order.(-3x2 + 2x + 1) + (-8x2 + 3x + 2)

Answers

i think by x2 you meant x²

(-3x² + 2x + 1) + (-8x² + 3x + 2)

-11x² + 5x + 3

What is the slope of a line that is perpendicular to the line: -4x + 6y = -1 ?

A. -3/2
B. -2/3
C. 1/4
D. 3/2

Answers

Your answer should be 2/3
Other Questions
If a bank benefits when a foreign currency declines in value, then the bank must be in a __________ position. The term below that correctly fills in the blank in the preceding sentence is: Group of answer choices Martas school has 325 desks for 13 classrooms . If the desks are shared evenly how many desks will each classroom have How much amount of water can be decomposedthrough electrolysis by passing 2 F charge? How many times is the value of the digit 5 in 65.1748 lesser than the value ofthe digit 5 in 3526.987?1001/100100010 what is twice the amount of 86 cch b tr hng trong kho Who do you think plays the most challenging role in a criminal trial ?explain. Find the first four terms in the sequencean 15 + 6nA. 21, 27, 33, 39B. 18, 12, 6,0C. 20, 26, 32, 38D. 20, 14, 8, 2 According to the graph of the rational function y equals 4 over the quantity x squared minus 4 end quantity which of the following statements is/are true? The function is even. The function is increasing for all values in the domain. There is a horizontal asymptote along the x-axis. I only I and II only I and III only I, II, and III Explain why this quadrilateral is not a parallelogram. PLEASE HELP WILL MARK BRAINLIEST More reliable and abundant food supplyJob specialization based on a surplus of fooddevelopment of a more formal social hierarchyIncreased population creating some social pressures as traditional family/clan loyalties broke downAll of the above resulted from what cultural change?The adoption of agricultureThe growth of complex, organized religionThe development of complex governmentThe development of metal tools which of the following quotes is the best way to tell your boss that you can't accept a new assignment right now?a. I would like to work on this. but if I take this on I won't be able to meet my current deadline.b. you know I already have this other deadlinec. I just don't know if I can get this all doned. I don't have time sorry If the product of a and cis negative, you subtract the factors of the product to arrive at c. True False help again geometry similarity transformations Help me write in standard form please help! I NEED HELP ASAP!!! convert 0.252525 to a fraction and convert 2.454545 to a fraction Please I need help! What were some similarities and differences between Native American cultures in the Great Plains and the East? Select the correct text in the passage.Which sentence in the excerpt best supports the theme of harmonious living?A Spark Neglected Burns the Houseby Leo Tolstoy (adapted excerpt)There once lived in a village a peasant named Ivn Stcherbakf. He was comfortably off, in the prime of life, the best worker in the village, andhad three sons all able to work. The eldest was married, the second about to marry, and the third was a big lad who could mind the horses andwas already beginning to plough. Ivn's wife was an able and thrifty woman, and they were fortunate in having a quiet, hard-working daughter-in-law. There was nothing to prevent Ivn and his family from living happily. They had only one idle mouth to feed; that was Ivn's old father,who suffered from asthma and had been lying ill for seven years. Ivn had all he needed three horses and a colt, a cow with a calf, and fifteensheep. The women made all the clothing for the family, besides helping in the fields, and the men tilled the land. They always had grain enoughof their own to last over beyond the next harvest and sold enough oats to pay the taxes and meet their other needs. So Ivn and his childrenmight have lived quite comfortably had it not been for a feud between him and his next-door neighbor, Limping Gabriel, the son of GordyIvnof.As long as old Gordy was alive and Ivn's father was still able to manage the household, the peasants lived as neighbors should. If the womenof either house happened to want a sieve or a tub, or the men required a sack, or if a cart-wheel got broken and could not be mended at once,they used to send to the other house, and helped each other in neighborly fashion. When a calf strayed into the neighbor's thrashing-ground,they would just drive it out, and only say, "Don't let it get in again, our grain is lying there." And such things as locking up the barns andouthouses, hiding things from one another, or backbiting were never thought of in those days.That was in the fathers' time. When the sons came to be at the head of the families, everything changed. If you dissolve 0.1 mol of formic acid in 1 L of water, ther esulting solution contains 0.004 mol of HO+. Based on this information, is formic acid a strong acid, or is it a weak acid? Please explain! Question 3 of 10Which angle in ABC has the largest measure?2A ZAB. 8C. 20O OD. Cannot be determined