Simplify the expression. (1423 – 2x2 + 3x – 7) – (328 + 142 – 10)

Answers

Answer 1

Answer:

-2x^2+3x+956

Step-by-step explanation:

If you want to do math easier, just look up symbolab.com and it will show you the right answers and how to do the problems.


Related Questions

Someone plz help me :(

Answers

Answer:

B

Step-by-step explanation:

I only help you because you have nezuko as profile picture

Daphne gave away 3 more than half of her apples. she gave awya 17 apple in all. How many apples did Daphne have originally?

Answers

Answer:

28

Step-by-step explanation:

Will give brainliest

What is the equation of a line that is parallel to 2x+5y=10 and passes through the point (5, -4)?

Enter your answer in slope-intercept form (y=mx+b) in the box

Answers

Answer: The equation of a line that passes through the point (5, −4) and is parallel to the line whose equation is 2x + 5y = 10 is y = (-2/5)x - 2

Step-by-step explanation: The equation of a straight line is given by:

y = mx + b

where y, x are variables, m is the slope of the line and b is the y intercept.

The slope of the line 2x + 5y = 10 is:

2x + 5y = 10

5y = -2x + 10

y = -2/5x + 10

Hence the slope of the line 2x + 5y = 10 is -2/5

Since both lines are parallel, hence the slope of the other line is the same (-2/5). Hence the equation of the line is:

The equation of a line that passes through the point (5, −4) and is parallel to the line whose equation is 2x + 5y = 10 is y = (-2/5)x - 2

2x+5y=10

Isolate y

[tex]\\ \sf\longmapsto 5y=-2x+10[/tex]

[tex]\\ \sf\longmapsto y=-2/5x+2[/tex]

m=-2/5

Parallel line has equal slope

Equation of line in point slope form

[tex]\\ \sf\longmapsto y-y_1=m(x-x_1)[/tex]

[tex]\\ \sf\longmapsto y+4=-2/5(x-5)[/tex]

[tex]\\ \sf\longmapsto 5y+20=-2x+10[/tex]

[tex]\\ \sf\longmapsto 2x+5y+10=0[/tex]

pls I need a step by step on how to solve
2+4=6−2

Answers

Answer:

4

Step-by-step explanation:

Answer:

32

Step-by-step explanation:

x          

 (— -  6) -  2  = 0

  4          

6     6 • 4

   6 =  —  =  —————

        1       4

x - (6 • 4)     x - 24

———————————  =  ——————

     4            4

 (x - 24)    

 ———————— -  2  = 0

    4        

        2     2 • 4

   2 =  —  =  —————

        1       4

(x-24) - (2 • 4)     x - 32

————————————————  =  ——————

       4               4

 x - 32

 ——————  = 0

   4  

x-32

 ———— • 4 = 0 • 4

  4  

x-32

the answer is B:
I just did the question

Answers

the answer is B: thanks

Answer:

huh? did you mean to send in tgis as a question or something???

For which of the following inequalities, is -4 part of the solution set? Select all that apply. A. x > -5 . B. 2 > X . C. 3x + 4 > -8 D. 5x < 2x - 3 E. ---6 < 4 - 2x​

Answers

[tex]-4[/tex] is a part of the solution set to all of the inequalities

We will consider each inequality in turn:

For [tex]x>-5[/tex]:

The solution set is [tex]\{{-4,-3,-2,-1,...\}[/tex]

So [tex]-4[/tex] is a part of the solution set of [tex]x>-5[/tex]

For [tex]2>x[/tex], or [tex]x<2[/tex]:

The solution set is [tex]\{{1,0-1,-2,-3,-4,...\}[/tex]

So [tex]-4[/tex] is a part of the solution set of [tex]2>x[/tex]

For [tex]3x+4\ge -8[/tex]:

We have to solve first

[tex]3x+4\ge -8\\3x\ge -8-4\\3x\ge -12\\x\ge -4\\[/tex]

The solution set is [tex]\{{-4,-3,-2,-1,0,...\}[/tex]

So [tex]-4[/tex] is a part of the solution set of [tex]3x+4\ge -8[/tex]

For [tex]5x\le 2x-3[/tex]:

We have to solve first

[tex]5x\le 2x-3\\5x-2x\le-3\\3x\le-3\\x\le-1[/tex]

The solution set is [tex]\{{-1,-2,-3,-4,-5,...\}[/tex]

So [tex]-4[/tex] is a part of the solution set of [tex]5x\le 2x-3[/tex]

For [tex]-6<4-2x[/tex]:

We have to solve first

[tex]-6<4-2x\\2x<4+6\\2x<10\\x<5[/tex]

The solution set is [tex]\{{4,3,2,...,-3,-4,-5,...\}[/tex]

So [tex]-4[/tex] is a part of the solution set of [tex]-6<4-2x[/tex]

So, [tex]-4[/tex] is a part of the solution set of all the inequalities.

Learn more about inequalities here: https://brainly.com/question/278997

[tex]\boxed{\sf x+3=12}[/tex]

Answers

Answer:

x = 9

Step-by-step explanation:

x+3 = 12x+3-3 = 12-3x = 9

Answer:

x=9

Step-by-step explanation:

[tex]x+3=12[/tex]

[tex]x+3-3=12-3[/tex] ( Subtract 3 from both sides)

[tex]x=9[/tex]

Help Plz this is due tomorrow
Write slope-intercept form of a linear equation

(1,5) and (3,9)
(5,8) and (3,2)
(1,-5) and (0,3)
If you can, when you answer can you put the steps plz
thx

Answers

(1,5) and (3,9)

[tex]y = 2x + 3[/tex]

(5,8) and (3,2)

[tex]y = 3x - 7[/tex]

(1,-5) and (0,3)

[tex]y = - 8x + 3[/tex]

First you need to plot the pointsThen you will find the slope (m), by using rise over runThen we will find the y-intercept (b). To find the y-intercept, choose one of the points on the line.Then you write the equation in slope intercept form (y = mx + b)

Hope this will help:)

13. Find the distance between (-9, -1) and (-2,-6). Round to the nearest tenth.
A) 8.6
B) 12.1
C) 9.9
D) 13.0

Answers

Answer:

(A) 8.6

Step-by-step explanation:

distance =√((x_2-x_1)²+(y_2-y_1)²)

the actual distance is 8.602325.

rounded distance is 8.6

Natalie walked 35 mile in 12 hour. How fast did she walk, in miles per hour?

a. 3/10 mile per hour

b. 5/6 mile per hour

c. 1 1/5 miles per hour

d. 2 miles per hour

Answers

Answer:

almost 3 mph so I'm guessing (d) is the answer

Step-by-step explanation:

35  ÷ 12 = 2.9 miles per hour

PARALLEL PERPENDICULAR OR NEITHER

Answers

Neither. They cross through each other (meaning they’re not parallel) but it doesn’t make a 90 degree angle so it’s not perpendicular

1. At time t=0,500 bacteria are in a petting dish, and this amount triples every 15 days.
2.The half-life of a substances is 400 years. Initially, there are 100 g of substance.
3. Suppose that a couple invested Phone 50,000 in an account rate is 4,4% compounded annually.


Pakisagot pO pls pls ipapasa nA namin bukas

Answers

Answer:

4 better inbox

Step-by-step explanation:

the point (-2,6) is on a line with a slope of 3/4. If the point -8,k) is also on the same line what is the value of k

Answers

For a point with a slope 3/4 and which passes through the points  (-2, 6) and (-8, k), the value of k is 1.5

The line passes through the points (-2, 6) and (-8, k)

That is, [tex]x_1=-2, y_1=6, x_2=-8, y_2=k[/tex]

The slope of the line, m = 3/4

The formula for calculating the slope of a line is given as:

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Substitute   [tex]x_1=-2, y_1=6, x_2=-8, y_2=k, m = \frac{3}{4}[/tex] into the formula above

[tex]\frac{3}{4} = \frac{k-6}{-8-(-2)} \\\\\frac{3}{4} = \frac{k-6}{-8+2}\\\\\frac{3}{4} = \frac{k-6}{-6}\\\\-6(3)=4(k-6)\\\\-18=4k-24\\\\4k=-18+24\\\\4k=6\\\\k=\frac{6}{4} \\\\k=1.5[/tex]

Therefore, the value of k is 1.5

Learn more here: https://brainly.com/question/25613656

You have been saving your money to buy a new pair of shoes. Three different stores are having a sale on them. Which store has the best deal?

Store A
Original Price: $70
Take 10% off.
Then, take 10 percent off that price.

Store B
Original Price: $80 Take $15 off.
Then, take 10 percent off that price.

Store C
Original Price: $90
Take 10% off.
Then, take $20 off that price.
A) Store A
B) Store B
C) Store C

Answers

Answer:

Store A would be the least expensive.

Step-by-step explanation:

Store A

70*0.10=7

70-7=63

63*0.10=6.30

63-6.30=57.70

$57.70

Store B

80-15=65

65*0.10=6.50

65-6.50=58.50

$58.50

Store C

90*0.10=9

90-9=81

81-20=61

$61

yoo I don't understand this pls help :))

geometry ​

Answers

Answer:

At the bottom of the text.

Step-by-step explanation:

The triangle is isosceles. The measure of the two internal angles J and K are equal; The misure of the external K angle (2) is half a circle minus the internal K (1). The internal angle in R is calculated by difference between 180 and twice the internal K angle (1).

1. 72° as well.

2. 180-70-70 = 40°

3. [tex]m\angle2 = 110 \rightarrow m\angle1 =70[/tex], Same as #2: 40°

4. [tex]x+2x+2x = 180 \rightarrow 5x=180 \righarrow x= 36[/tex]

5. [tex]x +(x+30)+(x+30) = 180 \rightarrow 3x +60 = 180 \rightarrow 3x= 120 \rightarrow x=40[/tex]

432 women attended a conference. Women made up 72% of the total conference attendees.

Men made up the other 28% of attendees.

How many men attended the conference?

Answers

Answer:

168

Step-by-step explanation:

If entire number of attendees = y

then number of women = y* (72/100)

since y* (72/100) = 432 ( given)

y =( 432*100)/72

so, y = 600

since men made up the remaining 28% of attendees ,

number of men = y * (28/100) = 600* (28/100)

number of men = 168

Hi guys can you please help me??
THANK YOU SO MUCH

Answers

Answer: it’s 320cm^2

Step-by-step explanation:

Between which two integers does the square root of 117 lie

Answers

Answer: 10 and 11 or -11 and -10

Answer:

Step-by-step explanation:

10 and 11 or -10 and -11

Ruben bought 666 comic books for \$21$21dollar sign, 21. Each comic book was the same price.
What was the cost for 111 comic book?
\$

Answers

Answer:

$3.50

Step-by-step explanation:

111 is a sixth of 666 so its 21/6 which is 3 dollars 50 cents.

How many square metres of wallpaper are needed to cover a wall 8 metres long and 3 metres high? Can some one help me with this please?​

Answers

Answer:

24 square meters of wallpaper

Step-by-step explanation:

Hope this helps.

helpppppp asapppppp pls
A: 80°
B: 75°
C: 110°
D: 95°

Answers

It’s 80 because it is the same shape just flipped which means it has the same angles

Answer:

A. 80 degrees

Step-by-step explanation:

the equation at the top tells you that they are the same shape so you just need to find which angle one the first shape is equal to the angle H

What coordinates do I plot at

Answers

Answer:

Step-by-step explanation:

y - 10 = -2(x - 10)

y - 10 = -2x + 20

y = -2x + 20 + 10

y = -2x + 30

When x = 0  ;   y = 0 + 30 = 30         ;  (0,30)

When x = 10 ;   y = -2*10 + 30 = -20 +30 = 10   ; (10 , 10)

When x = 5  ;  y = -2*5 + 30 = -10 + 30 = 20    ; (5 , 20)

Plot ( 0 ,30) ; (10,10)  & (5,20)

Determine the error(s) in the problem below and use mathematical language
from module 2 to explain and answer correctly.

Answers

Step-by-step explanation:

error is in ∆ABC =~ ∆RST

because it is,

∆ABC =~ ∆RTS or ∆STR

because,

AB = RT

BC = TS

CA = SR

hope this answer helps you dear! take care.

The error is in labelling the triangles.

What are triangles?

A triangle is a polygon with three sides having three vertices. The angle formed inside the triangle is equal to 180 degrees.

Given are two ABC and RST

Since, Δ ABC ≅ Δ RST

That gives,

AB = RS

BC = TS

CA = RT

In figure,

AC has been equated to RS, which is wrong or incorrect because the corresponding side of AC is RT

The correct labelling will be

AB = RS = 5

BC = TS = 5

CA = RT = 5.5

Hence, The error is in labelling the triangles.

For more references on triangles, click;

https://brainly.com/question/2773823

#SPJ2

What is the midpoint between points (4, 7) and (1, 1)?
Enter your answer down below

Answers

Answer:

(2.5, 4)

Step-by-step explanation:

(4, 7) (1, 1)

midpoint formula is ( (x1 + x2) / 2  , (y1 + y2) / 2 )

=>( (4 + 1)/2 , (7 + 1)/2 )

=> (5/2, 4)

=> (2.5, 4)

[tex]\sqrt{54} \times \sqrt{54}[/tex]

Answers

Answer:

 19.9202745546

Step-by-step explanation:

54 will be your answer...

Can someone please help I will give you 30 points and brainliest if the answer is right also no links please

Answers

Answer:

HL.

Step-by-step explanation:

Triangles  FEH and FGH are congruent

They are both right angles and the  hypotenuse and  a leg ( the side FH) are both equal in length.

Jill is buying a cookie kit to decorate cookies for her children during the holiday break. She will pay $2.50 per cookie and a $4 service fee. Which equation can be used to find y, the total cost to buy x cookies?

Answers

Answer:

4 + 2.5x=cost

Step-by-step explanation:

How to predict the charge of monatomic ions.

Answers

Answer:

by gaining or losing electrons

Step-by-step explanation:

hope it helped

brainliest pls

60x4= blank tens x 4 = blank tens = blank

Answers

Answer:6 tens

Step-by-step explanation:

Simple. 60 equals 6 tens so blank equals 6 tens

Blank tens = 6

Hope this helps :)

Geometry help me!
Extra points!

Answers

Answer:

71

Step-by-step explanation:

Other Questions
Mrs.Peterson dropped a ball from the top of a tower. At the same time, her son, Drake, launches a rocket from a different level of the tower.The height of the tennis ball in feet after t seconds can be represented by the quadratic function: b(t)=-t^2-2t+26.The height of Drakes rocket after t seconds can be represented by the linear function: p(t)=-2t+10. What are the two solutions to this system? Show your work. Explain which solution is not reasonable in this situation. After how many seconds do the rocket and the ball reach the same height. which histogram helps best predict how much time until the next customer comes into the Clothes Shoppe. What is carbon dating? A charged capacitor is connected to an ideal inductor. At time t = 0, the charge on the capacitor is equal to 6. 00 c. At time t = 2. 00 ms the charge on the capacitor is zero for the first time. What is the amplitude of the current at that same instant?. How would 1.047 be written as a percentage form? Which statement about how mass media have changed over time is most accurate. The width of a rectangle measures (10p + 6) centimeters, and its lengthmeasures (2p 10) centimeters. Which expression represents theperimeter, in centimeters, of the rectangle?- In 2018, Joshua gave $12,300 worth of XYZ stock to his son. In 2019, the XYZ shares are worth $28,800. If Joshua had not given his son the stock in 2018 and held onto it instead, how much more would his estate have been worth than if he had made the gift The range of F(x) = logo x is the set of all real numbers.A. TrueO B. False Ben purchased lunch today at the school cafeteria for $2.75. Before today, Ben owed $9.15 on his lunch account. How much money is in his lunch account after today? 1.3.2 checkup - lessons learned 2. What is the slope of the line represented by the table of values below? How do you know? darlene has a rooftop carrier for her car. She puts 5 items in the carrierwith the following weights, in pounds: 10.4, 13, 8, 112, and 15.7.310A. Write and evaluate an expression to find the total weight of the5 items. What is the amount of discount?(100 pts) A 12.0 kg box resting on a horizontal, frictionless surface is attached to a 5.00 kg weight by a thin, light wire that passes over a frictionless pulley (Figure 1). The pulley has the shape of a uniform solid disk of mass 2.60 kg and diameter 0.500 m. A) After the system is released, find the tension in the horizontal segment of the wire. B) After the system is released, find the tension in the vertical segment of the wire. C) After the system is released, find the x-component of the acceleration of the box. D) After the system is released, find the x- and y-components of the force that the axle exerts on the pulley. joe mammamamamamamaamamamma Choose the best answer to complete this sentence. ______________ , any child born into any society can acquire the language of that community with relative ease.Group of answer choicesGiving adequate exposure to languageGiven adequate exposure to languageExposed adequate given languageExposing given language adequately How much makeup should I were Im in 7th grade Nobody knew where they were A programmer wants to write code that directly accesses the computers hardware. Which is the best type of language for the programmer to use?. please help with this