X • x = 2x need help

Answers

Answer 1

Answer: $x\cdot x=2x\nx^2-2x=0\nx(x-2)=0\nx=0 \vee x=2$

Answer 2

Answer: $x*x=2x \n x^2=2x \n x^2-2x=0 \n x(x-2)=0 \n x = 0 \ \ \ \vee \ \ \ x-2=0 \ therefore \ x= 2$

Related Questions

I am confused on numbers 25 and 29, the instructions are at the top.
Evaluate the cube of a fraction number (4/7)3
Solve the system.x – 2y = 10 3x + 2y = 14 (Points : 5) (–8, 6) (–2, 6) (6, –8) (6, –2)
Choose the property of addition that the statement illustrates.a + (b + c) = (a + b) + c
How do I Solve this?

A Greenhouse has the shape of a cylinder and rectangular prism, as show. In order to air condition the building the owner needs to know the volume of the empty green house. What is the volume, in cubic feet? leave your answer to the nearest hundredths.Volume Cylinder= _______cubic feet

Volume total= ______cubic feet

Answers

Cuboid: 12×8×25=2400feet $^(2)$

half cylinder: $(1)/(2) ( \pi r^(2)h)$
⇒ r=6 h=25
⇒ $(1)/(2) ( 900\pi )$ = 1413.72feet $^(2)$

Total= 2400.00
+1413.72
------------
3813.72 $feet^(2)$

Final answer:

To find the volume of the greenhouse, calculate the volumes of the cylinder and rectangular prism separately. Then, add the volumes together to find the total volume.

Explanation:

To find the volume of the greenhouse, we need to calculate the volumes of the cylinder and the rectangular prism separately. The volume of a cylinder is given by the formula V = πr^2h, where r is the radius and h is the height. The volume of a rectangular prism is calculated by multiplying the length, width, and height. Once we have the volume of both shapes, we can add them together to find the total volume of the greenhouse.

Let's say the cylinder has a radius of 5 feet and a height of 10 feet. The volume of the cylinder is V = π(5^2)(10) = 250π cubic feet. The rectangular prism has a length of 15 feet, a width of 8 feet, and a height of 10 feet. The volume of the rectangular prism is V = 15 * 8 * 10 = 1200 cubic feet. Finally, the total volume of the greenhouse is 250π + 1200 = 1200 + 250π cubic feet.

Learn more about Volume of 3D shapes here:

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After making a deposit, puja had $264 in her savings account. She noticed that if she added $26 to the amount originally in the account and doubled the sum, she would get the new amount. How much did she have in the account?

Answers

Most people have issues with word problems because they do not go through the words in the question very minutely. It is of immense importance to go through all the data that has been provided in the question.
Let us assume the original amount that Puja had in her account = x dollars
Then from the details already given in the question, we can arrive at the equation
x + 26 + x + 26 = 264
2x + 52 = 264
2x = 264 - 52
2x = 212
x = 212/2
= 106
From the above deduction we can conclude that the amount Puja originally had in her account was $106. I hope the procedure is clear enough for you to understand.

Answer: $106.00 in the account

you have a 1.5 litre bottle of water and drink 295 millilitres and your friend drinks 135 millilitres, how much water is left

Answers

1,070 milliliters of water is left

Kevin is going to purchase sod for his backyard (see diagram below). How many square feet of sod will Kevin need?

Answers

Answer:

450 square feet

Step-by-step explanation:

Think of the shape as a complete rectangular

The area of the rectangular shape would be 25×30 = 750 square feet

Now find the area of the missing space and subtract it from 750

it would be 15×20 = 300 square feet

750 - 300 = 450 square feet

a boat takes 4 hours to go 20 miles upstream.It can go 32 miles downstream in same time.Find the rate of the current and the rate of the boat in still water.

Answers

Let

x---------> the rate of the boat in still water in mph

y--------> the rate of the current in mph

we know that

Upstream

$rate=(20)/(4) \n\n rate=5mph$

$x-y=5$ equation $1$

Downstream

$rate=(32)/(4) \n\n rate=8mph$

$x+y=8$ equation $2$

Adds equation $1$ and equation $2$

$x-y=5\n x+y=8\n -----\n 2x=13\n x=6.5mph$

Find the value of y

$x+y=8\n y=8-x\n y=8-6.5\n y=1.5 mph$

therefore

the answer is

the rate of the boat in still water is $6.5 mph$

the rate of the current is $1.5 mph$

Upstream: It goes about 5 mph b/c 20 miles/4 hours= 5 mphDownstream:It goes about 8 mph b/c 32 miles/ 4 hours=8 mphHope I helped! :-)

GRADE 10 MATH QUESTIONThe city is trying to open a road that connects a cabin in the woods to a
roadside. The roadside connects 2 parks. The cabin site is located at (8,6) on
the map and the parks are at point A (-2,10) and point B (5,-4). Find the
route that minimizes the cost and the number of trees that have to be cut
down (Hint: Find the shortest distance between the cabin and the roadside)

Answers

Answer:

the shortest route is from cabin site to B

Step-by-step explanation:

see my attachment

Answer:

answer is b

Step-by-step explanation:

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