2. Wpisz taką liczbę, aby rozwiązaniem równania była liczba 2.
a) 3(x - 1)-3 = b) 6y + 2(y + 1) - = 0 c) -t=t+2
3. Wpisz jakieś skomplikowane wyrażenie algebraiczne, tak aby rozwiązaniem
otrzymanego równania była liczba -1.
x3 + x +
= x2 - X+3
4. Uzupełnij przykłady równań odpowiednimi wyrażeniami algebraicznymi.
Przykłady równań sprzecznych:
Przykłady równań tożsamościowych:
1
1
1
2x + 1 =
1
1
1
1
1
1
+ 2
2x + 1 = 2(x - 1)+
x+6 = 1/3x+
2x + 4 =
1
1):2
1
1
1/3x + 4 =(
): 2
1
1
1
1

Answers

Answer 1
I didn’t understand but when I understand I will help you

Related Questions

Pls answer if u know the answer, don't just do it for points.
A motor is rated at 1500 Watts and a second motor is rated at 2200 Watts. If they each needed to lift a 100 kg box 20 meters, which one would get the job done first?

Answers

Answer:

motor of the 1500

                                       

Step-by-step explanation:

i took the test hopefully is the right one.

Find the measurements of ∠A, ∠B, ∠C, ∠E, ∠F, ∠G, and ∠H. 66°=∠D


∠A= ∠E= ∠H=
∠B= ∠F=
∠C= ∠G=

Answers

Answer:

The answer is

[tex] < a = < e = < h = < c = < g = 66 \\ < b = < f = 114[/tex]

Step-by-step explanation:

I am a math teacher If you need any explanation you can communicate with me on Whats on this number +201557831028

Posting for a freind please hurry

Answers

Answer:

2) 16.2

3)18.2

4)16.6

Step-by-step explanation:

Answer:

3. 18.6.

4. 17.2.

Step-by-step explanation:

there you go calculators are fun

Please help! I need the steps too!

Answers

Answer:

The answer is -3 2/7

Step-by-step explanation:

5- 1x1 - -4x4 + 3/2-1-4-4

5 - 1 +16+3/2-1-4-4

4+16+3/-7

23/-7

or - 3 2/7

3 less than four-sevenths of x is y

Answers

y = 4/7x - 3

hope this helps

Answer:4/7-3

Step-by-step explanation:

Yep

Determine which fraction is larger: 2/5 or 1/4​

Answers

Answer:

Step-by-step explanation:

1/4 ...............................................................

Answer: 2/5

Step-by-step explanation:

PLS HELP

How many solutions does this system of equations have?
y= -6x-7
y=-6x-7

Answers

Answer:

They can have infineyely many solutions :)

Sam took his savings to the bank and deposited them in a Certificate of Deposit (CD) account. He was told that he would collect the full interest in 260 weeks. How many years would Sam have to wait to collect the full interest

Answers

Answer:

5

Step-by-step explanation:

260 weeks divided by however many weeks in a year which is 365÷7 which is 52.14 so it would be rounded to 52

260÷52⇒5

Miguel is making trail mix. He uses 513 ounces of nuts and 234 ounces of raisins. Which of these is a reasonable estimate for how many more ounces of nuts than raisins Miguel uses?

Answers

Answer:

2.58 more nuts Miguel uses than raisins

Hope this helps!

Question Help

Find the value of x

Answers

Answer:

x = √97

Step-by-step explanation:

Answer:√97

Step-by-step explanation:

According to pythagoras theorem,

X^2= 4^2 + 9^2

→x =√(16 + 81)

→x=√97

Evaluate the expression, 7x+8(x-3). Assume that x=4.

Answers

Answer:

36 answer

Step-by-step explanation:

i hope it will help u

The bases of a cylinder have a diameter of 4 inches. The height of the cylinder is 6 inches. What is the total surface area of the cylinder?

Answers

Answer:

Step-by-step explanation:

area of base = π4² = 16π in²

lateral area = 2πrh = 2π·4·6 = 48π in²

surface area = 2×16π + 48π = 80π in² ≅ 251.3 in²

Answer: 100.54 in^2

Step-by-step explanation:

(the area of a circle*2) + (the circumference*the height) = the surface area of the circle

Area of a circle: Pi*r^2

Circumference: 2*Pi*r

HELP IT’S TIMED
Which function has a removable discontinuity at x = 7?

Answers

9514 1404 393

Answer:

  (b)  see below

Step-by-step explanation:

A removable discontinuity exists when the function is undefined at a point where the limit exists.

Choices A, C, D have no limit at x=7 (does not exist).

__

Choice B can be simplified to ...

  f(x) = (x -3)(x -7)/(x -7)

  f(x) = (x -3) . . . . . . . x ≠ 7 (domain restriction; undefined at x = 7)

The discontinuity in this function can be removed by defining the function to be f(x) = x-3 everywhere.

Answer:

B

Step-by-step explanation:

Got it right

A shopkeeper bought an almirah from aWholesaler for & 5ooo and sold itfor $5700. Find his profit or less or
persent
.​

Answers

Answer:

c.p.= 5000

s.p.=5700

selling price is greeter than cost pries

then their is a profit

profit=S.p.- c.p.

p=5700-5000

so the profit was the rupees=700

the shopkeeper had a profit of rupees of 700.

Step-by-step explanation:

Pleaseee helppp answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

XT and XW

Step-by-step explanation:

They are indicated congruent by the congruency marks on each.

If b is a positive real number and m and n are positive integers, then
b^m/n = n square root b^m = (n square root b)^m.
O A. True
B. False

Answers

Answer:

true

Step-by-step explanation:

NEED HELP AS SOON AS NOW, PLEASE AND THANK YOU
ALREADY WAITED 2 HOURS

george has opened a new store and he is monitoring its success closely. He has found that this store’s revenue each month can be modeled by r(x)=x2+5x+14 where x represents the number of months since the store opens the doors and r(x) is measured in hundreds of dollars. He has also found that his expenses each month can be modeled by c(x)=x^2−4x+5 where x represents the number of months the store has been open and c(x) is measured in hundreds of dollars.

the new store will sell 900 items in its fifth month in business

the store will have a profit of $900 after its fifth month in business

the store will have a profit of $5400 after its fifth month in business

the new store will sell 5400 items in its fifth month in business

Answers

Answer:

Step-by-step explanation:

The correct answer is that the new store will have a profit of $5400 after its fifth month.

Profit is given by subtracting revenue minus cost:

(R-C)(x) = (x²+5x+14)-(x²-4x+5) = x²-x²+5x--4x+14-5 = 5x+4x+14-5=9x+9

Using 5 for x,

(R-C)(5) = 9(5) + 9 = 45+9 = 54

This is in hundreds of dollars, so it represents $5400.

The cook at IHOP can make 72 pancakes in 3 hours. How many pancakes can she make in 9 hours? Create a table. state your answer clearly with a label

Answers

Answer:

216 pancakes every 9 hours

Step-by-step explanation:

9/3 = 3

72 x 3 = 216

Find the value of each variable

Answers

Answer:
a° = 41°
b° = 139°

Explanation:
Vertical angles are opposite angles created by a pair of intersecting lines, and are equal in measure.
Angle a° is a vertical angle with the angle created by D and B.
a° = ∠DB
a° = 41°

Straight lines are 180°.
Line DC is straight and is divided into two angles, which will add to 180°.
b° + 41° = 180°
b° = 180° - 41°
b° = 139°

Answer:

a° = 41°

b° = 139°

Step-by-step explanation:

a° = ∠DB

a° = 41°  

b° + 41° = 180°

b° = 180° - 41°

b° = 139

what is .382 as a fraction

Answers

Answer:

[tex]\frac{382}{1000}[/tex]

Step-by-step explanation:

Answer:

191/500

Step-by-step explanation:

We have

0.382

0.382 = 382/1,000

Simply 191/500 therefore answer is 191/500. How I got that was I divided .382/1,000 by 2 numerator and denominator.

Hope this helps

Find
1/4 divided by 2/9. Input your answer as a reduced fraction.

Answers

Answer:

9/8

Step-by-step explanation:

The solution of the expression '1/4 divided by 2/9' in a reduced fraction is 9/8.

Used the concept of division which states that,

The division method is used to distribute a group of things into equal parts. The division is just the opposite of multiplications.

Given that,

1/4 divided by 2/9.

Now, divide the numbers and find the reduced fraction as,

1/4 divided by 2/9

It can be written as,

[tex]\dfrac{1}{4} \div \dfrac{2}{9}[/tex]

[tex]\dfrac{1}{4} \times \dfrac{9}{2}[/tex]

[tex]\dfrac{9}{8}[/tex]

So, the solution is 9/8.

To learn more about the divide visit:

https://brainly.com/question/28119824

#SPJ6

PLEASE HELP ITS DUE SOON, ILL GIVE BRAINLEST

Answers

Answer:

2

Step-by-step explanation:

(6*2.5)/6.5 = 30/13

Answer:I think its B 30/13

Step-by-step explanation:

I used a calculator

6 feet
4.5 feet
3 feet
The rectangles are similar. What is the length in feet of the smaller
rectangle?
A 4
B. 4.2
C. 5
D. 5.5

Answers

Answer:

140

Step-by-step explanation:

(7/4) (80) =140 this is the answer for you.

WILL GIVE BRAINLIEST TO WHOEVER ANSWERS ALL 3 AND GETS THE RIGHT! PLEASE HELP

Answers

Answer:

4. 21

5. 45

6. 22

Step-by-step explanation:

4. 6 + (2^4) - 1

   6 + (16) - 1

   22 - 1 = 21

5. (4 * 3²) + (18 - 9)

   (4 × 9) + (9)

   (36) + (9) = 45

6. 16 + (5² - 7) ÷ 3

PEMDAS tells us to do what's in Parentheses first

16 + ( 25 - 7) ÷ 3

16 + (18/3)

16 + 6 = 22

What is the slope of the line

Answers

Slope = 1/2

Hope this helps! Have a great day :)
Yeah, it’s 1/2, you go up 1 and right 2 because the line touches the center of the intersecting lines

you look down at an object on the ground. If your eyes are
55 feet above the ground, and the angle of depression is 50º, how far is the object
from you?


i believe it’s 2,750 feet?

Answers

Answer:

We can think of this as a triangle rectangle.

We know that you eyes are 55ft above the ground, this can be one cathetus.

We also know that you see with an angle of depression of 50°, from this angle, our known cathetus would be the opposite cathetus.

Now we want to know how far is the object from you, this would be the hypotenuse of the triangle rectangle.

So we only know one angle and the opposite cathetus to this angle, then we can use the relation:

Sin(θ) = (opposite cathetus)/(hypotenuse)

Then if we use this equation, we will get:

Sin(50°) = 55ft/hypotenuse

hypotenuse = 55ft/sin(50°) = 71.8 ft

This means that the distance between you and the object is 71.8 ft.


A car is travelling at 40 mph
How long will it take this car to travel 130 miles?

Answers

Answer:

3.25 hours

Step-by-step explanation:

if the car is going 40mph then devide 130 by 40 to get the amount of time. that's how I was taught in school, sorry if it's wrong.

Can someone please explain c?
Q1.
The roots of the quadratic equation
x2 + 2x - 5 = 0
Are a and B
(a) Write down the value of a + ß and the value of aß.
(b) Calculate the value of a2 + B2
(c) Find a quadratic equation which has roots a3 + 1 and aß3 + 1.

Answers

Answer:

Idek

Step-by-step explanation:

substitute this equation y=2/3x-1 if y=3

Answers

Answer:

I believe what your asking me to do is put the y value back into the equation and solve for x. If so x=6 or x=(5/9) SEE BELOW

Step-by-step explanation:

y=(2/3)x-1 , y=3

3=(2/3)x-1

4=(2/3)x

x=6

OR

y=2/(3x-1)

x=(5/9)

maths class 8 so easy​

Answers

Answer:

right i can't see the puestion

Step-by-step explanation:

Answer:

bro ik

Step-by-step explanation:

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