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kipiarov [429]
2 years ago
13

How many solutions does the equation have?

Mathematics
2 answers:
stich3 [128]2 years ago
8 0

Answer:  The correct option is

(B) 1 solution.

Step-by-step explanation:  We are given to find the number of solutions that the following equation has :

2x+3=4x+2~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

To find the number of solutions, we must try to solve the given equation first.

The solution of equation (i) is as follows :

2x+3=4x+2\\\\\Rightarrow 4x-2x=3-2\\\\\Rightarrow 2x=1\\\\\Rightarrow x=\dfrac{1}{2}.

Since we can find only one value of x from the equation, so there will be only one solution.

Option (B) is CORRECT.

Alex17521 [72]2 years ago
4 0

Answer:

x = 1/2

Step-by-step explanation:

2x + 3 = 4x + 2

-2x        -2x

3 = 2x + 2

-2          -2

1 = 2x

Divide both sides by 2x

x = 1/2

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A top-loading washing machine has a cylindrical basket that rotates about a vertical axis. The basket of one such machine starts
damaskus [11]

Answer:

n_{tot}=44rev

Step-by-step explanation:

In order to solve this problem we can make use of the following formula:

\theta=(\frac{\omega_{f}+\omega_{0}}{2})t

where θ is the total angle the basket has turned, ω is the angular velocity and t is the time.

Generally theta is written in radians and omega is written in radians per second. Now, since the revolutions are directly related to the radians and they want us to write our answer in revolutions, we can directly use the provided speeds in the formula, so we can rewrite it as:

n=(\frac{f_{f}+f_{0}}{2})t

where n represents the number of revolutions and f is the frequency at which the basket is turning.

The movement of the cylindrial basket can be split in two stages, when it accelerates and when it decelerates. So let's analye the first stage:

n=(\frac{4rev/s+0}{2})(9s)=18rev

and now let's analyze the second stage, where it decelerates, so we get:

n=(\frac{0rev/s+4rev/s}{2})(13s)=26rev

So now that we know how many revolutions the cylindrical basket will take as it accelerates and as it decelerates we can add them to get:

n=18rev+26rev=44rev

So the basket will turn a total of 44 revolutions during this 22s interval.

3 0
2 years ago
A bar graph shows that sports books received 9 votes . If the scale is 0 to 20 by twos, where should the bar end for the sports
Anna35 [415]

Check the picture below.

7 0
3 years ago
If the measure of the base of a triangle is 3b+2 and the height is 4b,represent the area of the triangle
Naily [24]

Answer:

6b^2 +4b

Step-by-step explanation:

The area of a triangle is

A = 1/2 bh

A = 1/2 * (3b+2) * (4b)

    =1/2 (12 b^2 +8b)

   = 6b^2 +4b

3 0
3 years ago
Find the lateral area of the pyramid to the nearest whole number.
son4ous [18]

Answer:

The correct answer is first option.  204 m²

Step-by-step explanation:

Formula:-

Lateral surface area of square pyramid = 4 * area  of triangle

<u>To find the slant height of triangle(l)</u>

l = √(6² + 6²) = 6√2

To find the area of triangle

Area = bh/2

b = 12 m

h =  6√2

Area = (12 * 6√2)/2 = 36√2

<u>To find the lateral surface area of Prism</u>

Lateral surface area of square pyramid = 4 * area  of triangle

= 36√2 * 4 = 203.64 ≈ 204 m²

First answer is the correct option

7 0
3 years ago
Which angles are correspoding angles
Luden [163]

Answer:

When two lines are crossed by another line (which is called the Transversal), the angles in matching corners are called corresponding angles. Example: a and e are corresponding angles. When the two lines are parallel Corresponding Angles are equal.

7 0
2 years ago
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