answer this please I need a real answer

Answer This Please I Need A Real Answer

Answers

Answer 1

Answer:

see explanation

Step-by-step explanation:

(a)

x² + 2x + 1 = 2x² - 2 ( subtract x² + 2x + 1 from both sides

0 = x² - 2x - 3 ← in standard form

0 = (x - 3)(x + 1) ← in factored form

Equate each factor to zero and solve for x

x + 1 = 0 ⇒ x = - 1

x - 3 = 0 ⇒ x = 3

-----------------------------------

(b)

[tex]\frac{x+2}{3}[/tex] - [tex]\frac{2}{15}[/tex] = [tex]\frac{x-2}{5}[/tex] ( multiply through by 15 to clear the fractions )

5(x + 2) - 2 = 3(x - 2) ← distribute parenthesis on both sides

5x + 10 - 2 = 3x - 6

5x + 8 = 3x - 6 ( subtract 3x from both sides )

2x + 8 = - 6 ( subtract 8 from both sides )

2x = - 14 ( divide both sides by 2 )

x = - 7

--------------------------------------------

(c) Assuming lg means log then using the rules of logarithms

log [tex]x^{n}[/tex] ⇔ nlogx

log x = log y ⇒ x = y

Given

log(2x + 3) = 2logx

log(2x + 3) = log x² , so

x² = 2x + 3 ( subtract 2x + 3 from both sides )

x² - 2x - 3 = 0

(x - 3)(x + 1) = 0

x = 3 , x = - 1

x > 0 then x = 3


Related Questions

pls help plsss and tyy i need helppp!!!

Answers

Answer:

B

Step-by-step explanation:

area for triangle

9x3=27

27/2= 13.5

area for trapezoid

6+9= 15

15(6)= 90

90/2=45

45+13.5= 58.5 ft²

whats the length of the third side? round to the nearest tenth if u need to

Answers

the length is seven (7)

Which of the following functions is in vertex form?

Answers

Answer:

Y = a(x-h)^2 +k

Step-by-step explanation:

The first one, since the vertex form is in subtraction form. You need the a, the x, the h, and the k for the formula.

Answer:

y=a(x-h)^2+k

Step-by-step explanation:

This is the answer because numbers in the -h and k is the vertex point in this form.

e.g. y=2(x-4)^2+5

the vertex here is (4,5)

(btw, for h, when there's a negative sign in front of it, it's the opposite and when there's a plus sign in front of h, it's the opposite.)

RESTAURANT MANAGEMENT
BUSINE
HIGH SCHO
pod by Knowledge Man
Purchasing Math Quiz
QUESTION 1 of 10: The value of inventory for your Restaurant has grown from $635,000 to $742,550. What percentage did it grow by?
a) 12%
b) 1796
c) 2096
O d) 33%
ОООО
Submit
©2021 Knowledge Matter:

Answers

Answer:

33%

Step-by-step explanation:

Answer:

17%

Step-by-step explanation:

GOT IT RIGHT

Helppp please
Find the area of the following figures. Dimensions are In centimeters

Answers

Answer: the area should be 384cm

Step-by-step explanation:

Area = 28 cm squared

Top rectangle: 4x2=8
Lower rectangle: 2x10=20
8+20=28


A triangle has a base that is 4cm longer than its height.
a. Write a polynomial that represents the area of the triangle.
b. Find the area when the height is 8cm

Answers

Answer:

a) A =( x^2 -4x)/2

b) 16 cm^2

Step-by-step explanation:

Let the base of the triangle be x cm

since it is longer, then the height would be (x-4) cm

Mathematically, the area of a triangle is the product of the base and the height divided by 2

So, we have this as;

A = 1/2(x-4)x

A = x(x-4)/2

A = (x^2 - 4x)/2

A =( x^2 -4x)/2

To find the area, we only need to substitute 8 cm for x

we have this as;

A = (8^2 -4(8))/2

A = (64-32)/2 = 32/2 = 16 cm^2

We will begin by converting the word problem to relatable mathematical expression in the first part, in the second part, we will substitute for x and find the area which is 48cm^2

Given data

Let the height be x cm

and let the base be y cm

Going by the word problem statement "base that is 4cm longer than its height."

y = x+4

a. the polynomial expression for the area of the triangle is

We know that the area of triangle is given as

Area = 1/2*Base*Height

Area = 1/2*(x+4)*x

Area = 1/2*x^2+4x

Simplify

Area = x^2/2 + 2x

b. The Area when the height is 8cm

We will substitute x= 8cm

Area = (8)^2/2 + 2(8)

Area = 64/2 +  16

Area = 32+16

Area = 48 cm^2

Learn more about Triangle here:

https://brainly.com/question/17335144

PLEASE ANSWERRRRRRRRRRRRRRRRRRRRRRRRRRR

Answers

Answer:

d. 30

A = a+b /2 h

A = 6+9/2 × 4

A = 30

Answer:

D, but I am not too sure.

Good luck

Help plsss hehshshisieieirirj for brainly pls

Answers

Answer:

4 yards

Step-by-step explanation:

11 1/2 feet is equal to 3.833333 and 4 yards is more than that.

Answer:

11 1/2 ft. < 4 yd

Step-by-step explanation:

I'm not sure if thats what your asking.

But 1 yard is 3 ft, so 4 yards is equal to 12 ft. Therfore 11 1/2 ft. < 4 yd.

Can y’all help me with this

Answers

Step-by-step explanation:

Try this process when you see a right triangle

b) Calculate the area of the red triangle to find the area of the garden. Show your work

Answers

Answer:

Solution given:

the area of the red triangle =½(a×b)unit²

Perpendicular/Height=H=side aBase=B=side b

So area

1/2BH1/2(side a)(side b)

Arelli is 12 5 6 years old. Carl is 1 1 3 years younger than Arelli and Jane is 1 1 4 years younger than Carl. How old is Jane?

Answers

Answer:

10 1/4

Step-by-step explanation:

Carls age = 12 5/6 - 1 1/3

12 5/6 - 1 1/3

11 (5 - 2) / 6 = 11 3/6

Jane's age = carl's age - 1 1/4

11 3/6 - 1 1/4

10 (12 - 6) / 24 = 10 6/24 = 10 1/4

Who’s able to Answer?

Answers

Answer:

#3; Domain stays the same, but the range changes.

Step-by-step explanation:

All of the x values, stay the same, but because of the reflection the y-values change due to everything becoming greater than 2 rather than less than 2.

Answer:

C) The domain stays the same, but the range changes.

✿---✿--❀---❀---✿---✿

hope it helps...

have a great day!!

plz help as fast as possible for 50 points!

Answers

Answer:

(2x-7)^2

Step-by-step explanation:

you need to find two numbers that add up to -28, but multiply to 196, so -14, then spread out your equation and sub in -14, then divide out common factors, and then you have your answer

if you have any questions, leave them in the comments, i will try to answer them, if this helped, pls give brainliest

Answer:

[tex]g(x)=4x^2-28x+49[/tex]

[tex]=4(x^2-7x)+49[/tex]

[tex]=4(x^2-7x+(7/2)^2-(7/2)^2)+49[/tex]

[tex]=4(x-7/2)^2+4(-(7/2)^2)+49[/tex]

[tex]=4(x-7/2)^2+4(-49/4)+49[/tex]

[tex]=4(x-7/2)^2+0[/tex]

[tex]4(x-7/2)^2+0[/tex]

-------------------------------

so,

[tex]g(x)=4(x-7/2)^2+0[/tex]

----------------------------

hope it helps....

have a great day!!

Tennessee Valley Authority

Answers

Answer:

What?

Step-by-step explanation:

I just tried to answer and it said incorrect answer for the first time that’s weird

What fraction is equivalent to -2 4/9?

Answers

Answer:

-22/9

Explanation:

Just turn -2 4/9 into an improper fraction. 2 x 9 = 18 and 18 + 4 = 22.

22/9, and just add the negative sign to make it -22/9.

Oscar has $30 from his allowance. There is a video game he wants to buy that costs $17.99, a chocolate bar that costs $0.79 and a remote control car that costs $8.99.

Answers

Answer:

[tex]Balance = \$2.23[/tex]

Step-by-step explanation:

Given

[tex]Allowance = \$30[/tex]

[tex]Video\ Game = \$17.99[/tex]

[tex]Chocolate\ Bar = \$0.79[/tex]

[tex]Remote\ Car = \$8.99[/tex]

Required [Missing from the question]

What is his balance after purchasing the items

First, calculate total cost of items

[tex]Total =Video\ Game + Chocolate\ Bar + Remote\ Car[/tex]

[tex]Total = \$17.99 + \$0.79 + \$8.99[/tex]

[tex]Total = \$27.77[/tex]

The balance is then calculated as:

[tex]Balance = Allowance - Total[/tex]

[tex]Balance = \$30 - \$27.77[/tex]

[tex]Balance = \$2.23[/tex]

The owners of a smoothie shop want the price of each size smoothie to be proportional to the amount of liquid it contains. A small smoothie will be 16 fluid ounces and sell for $3.52

Answers

Answer:

?

Step-by-step explanation:

Whats the question?

The proportionality constant if, A small smoothie will be 16 fluid ounces and sell for $3.52 is 22.

What is proportionality?

When the corresponding elements of two numerical sequences, frequently experimental data, have a fixed ratio, this is referred to as the coefficient of proportionality, and the two sequences are said to be proportional or directly proportional.

Given:

A small smoothie will be 16 fluid ounces and sell for $3.52,

Convert the price of the smoothie in cents as shown below,

The price of a smoothie = 3.52  × 100   ($1 = 100 cents)

The price of a smoothie = 352 cents

Calculate the proportionality constant as shown below,

The proportional constant = Fluid / price

The proportional constant = 352 / 16

The proportional constant = 22

Thus, The proportional constant is 22.

To know more about proportionality:

https://brainly.com/question/8598338

#SPJ5

The complete question is: The owners of a smoothie shop want the price of each size smoothie to be proportional to the amount of liquid it contains. A small smoothie will be 16 fluid ounces and sell for $3.52. Find the proportionality constant.

Help will give Brainlyest if right

Answers

Answer:

-4 , 0 would be the answer your looking for I believe

what value of x makes this equation -5/2x + 1 = x + 3 true

Answers

Answer:

x = -4/7

Step-by-step explanation:

-5/2x + 1 = x + 3

-7/2x = 2

(-2/7)-7/2x = 2(-2/7)

x = -4/7

find the distance between each pair of points. Round your answer to the nearest 10th if necessary

Answers

Answer:

5.4

Step-by-step explanation:

√(x2 - x1)² + (y2 - y1)²

√[-2 - (-7)]² + (7 - 5)²

√(5)² + (2)²

√25 + 4

√29

= 5.4

a person's heart beats approximately 10^5 times each day. a person lives approximately 81 years. Work out an estimate for the number of times a person's heart beats in their lifetime

Answers

Answer:

29565x(10^5)

Step-by-step explanation:

heartbeat in 1 day=10^5.

we have 365 days in a year. it means that;

365x(10^5)=365x(10^5). this is heartbeat for 1 year.

then for 81 years,we multiply the value of 1 year heartbeat by 81.

=29565x(10^5).

What time does the clock show?
Please help I didn’t get to learn this.

Answers

Answer:

The clock shows 8:18

Step-by-step explanation:

Answer:

8:18

Step-by-step explanation:

Which is the graph of y^2/16-x^2-9=1

Answers

Answer:

A

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Find the area. The figure is not drawn to scale.
a
1440 in.2
b
1188 in.2
c
138 in.2
d
69 in.2

Answers

Answer:

A

Step-by-step explanation:

40 x 36 = 1440 in.2

What is the mean number of points scored by these players?

Answers

The answer is 6... hope this helps.......

Find the perimeter and Area of the rectangle

Answers

the answer is x^2+5(0) because the theorem matches the equation equally

Answer:

p is 5 by 7 the a is 3 by 6

Step-by-step explanation:

Which sequences are converging? Check all that apply.
an
n4
10n3
n2-2n
an
2n2
an
=
25 - 4n3
2n2-n.
n2 +5n+6
an
n +3
m2-n +6
n3 – 3n²

Answers

Answer:

B & E

Step-by-step explanation:

Edge trust me

Angle LMN and angle NMR are supplementary angles. What is the value of x in the diagram below?​

Answers

Answer:

x=48

Step-by-step explanation:

Supplementary means to add to 180.

Your equation is 36+3x=180

180-36=144

3x=144

144 divided by 3x= 48

x=48

How tall is the tree? Round to the nearest foot.. please help me

Answers

Answer:

C

Step-by-step explanation:

tan x = opp./adj.

tan 30° = t/20 so t = 20* tan 30° = 11.547≈12

T = t+5 = 12+5 =17  the closest one I see is C.16

could someone please answer #35 for me

Answers

Answer:

408

Step-by-step explanation:

Volume = length times width times height

So in this situation we can see that 17 is the length, 8 is the width, and 6 is the height

Knowing this information we can continue

If you think of a regular cube, you can split it diagonally and then it would be 2 triangles

So we can split the width, in halve which would be 4 and then apply the formula 4*6*17 and when you solve that you get 408 Now we have to split that in halve because remember it is a triangle and a triangle is halve of a square. Halve of 408 is 204.

If we repeat that prosses for the other side we will also get 204. Now we add 204+204 to get our answer 408.

Sorry is this was a little confusing but that's the best I can explain it.

Hope that helped and have a great day!

Step-by-step explanation:

Other Questions
I will be giving brainliest whoever answers these Suppose that a population parameter is 0.7 and many samples are taken from the population. If the size of each sample is 100, what is the standard error of the distribution of sample proportions? HELP SOMEONE PLEASEEE!!!If you grew up with Abraham Lincoln, you would have seen great changes take place between the time Lincoln was a boy in Kentuckyand the time he was president in Washington, D.C. Important changes took place in transportation and communication. When Lincolnwas a boy, there were no trains. Mail that had to be delivered across long distances was carried by horse or a vehicle pulled by horse. Ittook a long time for a message to travel by stagecoach. By the time Lincoln was a grown man, people communicated using thetelegraph, which was like an early version of the phone. It allowed messages to be sent very quickly.2"By the time Lincoln was a grown man, people communicated using the telegraph, which was like an early version of the phone."What type of context clue is used to help you define the word telegraph?OA. exampleOB. explanationOC.synonymOD.antonym Read this paragraph from "The American Romantics v. the American Realists."The female writers of the time, Chopin and Gilman, produced stories that portray what life was like for women during the 19th century. Chopins novel, The Awakening, follows Edna Pontellier as she tries to live an extraordinary life free of the stifling societal expectations for women. Gilmans The Yellow Wallpaper, a strange, slightly comedic, but ultimately very serious tale, changed the way physicians treat female patients. Both Chopin and Gilman are now seen as precursors to 20th-century feminism.What is the tone of this paragraph?humorousadmiringdismissivepessimistic why transparent object don't form a shadow Someone help me with this question please Simone read online that the failure rate in Arizona for the first attempt of the written drivers test is 60%. Simone thinks the Arizona rate is less than 60%. To investigate, she selects an SRS of 50 Arizona drivers and finds that 27 failed their first written driving test. To determine if this provides convincing evidence that the failure rate for Arizona is less than 60%, 200 trials of a simulation are conducted. Simones hypotheses are: H0: p = 60% and Ha: p < 60%, where p = the true proportion of Arizona drivers who fail the first attempt of the written drivers test. Based on the results of the simulation, the estimated P-value of this test is 0.035. Using = 0.05, what conclusion should Simone reach? The equation for the speed/distance of a tornado iss = 93 log(d) + 65.If the speed is 310 mph, what is the distance? Discuss both the support and criticism that the National Organization for Women received in the 1960s. One of the major developments during the Roman Empire was portraiture. Though the idea of creating a portrait of an actual person wasnt new, its use grew. What is the MOST likely reason for this increase in the use of portraiture?A. Death masks became more popular during this time.B. Portraits of leaders were new to this time period.C. There was a greater emphasis on the individual in Roman society.D. Portrait busts were easier to construct during this time period. what is the x intercept of the graph of y=4x-36 A record is spinning on a turntable. A record is a uniform disk of mass 1.00 kg and a radius of 0.13 m that spins around an axis through its center. The record is initially spinning at 10 rad/s. Then the motor is turned off and the record slows to a stop with constant angular acceleration. As the record is slowing down it spins through 6.37 revolutions. What is the magnitude of the net torque acting on the record as it slows down Plssssssss helppppppppppppp All of the following are true about the American military during the Vietnam WarEXCEPT:The government censored the press by not allowing TV networks to report fromVietnam12 UnsavedAmericans had a difficult time telling apart the Vietcong and VietnameseciviliansThe U.S. advantage in military power was balanced by the Vietcong's use ofguerilla tacticsAmerican military tactics included search-and-destroy missions, bombings, andnapalm Solve for x in the following equations:-8x -10y = -2 when y = -3A) -3B) -6C) 4D) -2 Which of the following statements best describes what happens during exercise?(Please explain why each of the incorrect statements are wrong. Thank you!)A. Blood vessels in the muscles dilate to increase blood flow.B. Blood vessels in the heart dilate to increase blood pressure.C. Blood vessels in the organs dilate to increase blood oxygen.D. Blood vessels in the lungs dilate to increase blood volume. Find the code word by completing the maze below. To complete the maze you must determine what type of triangle is formed by the given set of dimensions. There are letters in each box that will form the code word you need to unlock puzzle one. The letters will go in order to form the word. MI 4,7,9 Obtusa 5,5,5 obtusa 9.12,15 Acute 12, 16,20 BEGIN Right Acute Right Obtuse N S Acute Right 7, 12, 18 P Acute 15,20,25 1,3,5 6,8,10 Acute Jobtuse Obtuse Right Right 21,28,35 Right P 30, 40, 50 Acute 6, 12,18 12,18,31 Obtuse Obtuse Obtuse Obtuse 3,4,5 Right 2,2,2 Acute 12, 16,20 Right FINISH Code: Please help I dont understand this How did the cotton gin impact the lives of slave, the land, and the economy of the south. (PLEASE PROVIDE EVIDENCE FOR EACH ANSWER) No links Marking Branliest for best answer possible Which of the following statements is an example of propaganda? A. Humbron can be purchased scented or unscented and is widely available at hair salons as well as your local corner store. B. It is designed for people who have dry hair, damaged hair, oily hair, split ends, dandruff, dry scalp, or itchy scalp. C. Humbron will give your hair that soft, manageable, movie-star feeling at only a few dollars more than your usual shampoo, and isn't that a small price to pay? D. Humbron is made from all natural ingredients and is free of formaldehyde, diazolydinal urea, sodium lauryl sulfate, and propylene glycol.