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Kryger [21]
4 years ago
13

How many solutions exist for the given equation? 1/2(x + 12) = 4x – 1

Mathematics
2 answers:
miskamm [114]4 years ago
6 0
\frac{1}{2} (x+12)=4x-1

Multiply  both sides by 2 :

\frac{1}{2}(x+12)*2 = 4x*2-1*2

x+12=8x-2

x+12-12=8x-2-12

x=8x-14

Subtract 8 x from both sides:

x-8x=8x-14-8x

-7x=-14

Divide both sides by -7 :

\frac{-7x}{-7} = \frac{-14}{7}

x = \frac{14}{7}

x = 2

<span>1 solution</span>

hope this helps!


loris [4]4 years ago
6 0

Answer:

B.one

Step-by-step explanation:

there is only one solution to the problem.

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What is the product of the polynomials below?
Irina-Kira [14]

Answer:

B

(x+4)(x2−8x+3)

=(x+4)(x2+−8x+3)

=(x)(x2)+(x)(−8x)+(x)(3)+(4)(x2)+(4)(−8x)+(4)(3)

=x3−8x2+3x+4x2−32x+12

=x3−4x2−29x+12

3 0
3 years ago
What is the area of a sector with a central angle of 2π7 radians and a diameter of 40.6 mm?
Gennadij [26K]

Answer:

184.85 square mm

Step-by-step explanation:

The area of a sector of a circle is \frac{1}{2} r^{2} \theta, where r is the radius and \theta is the angle in radians subtended by the arc at the centre of the circle.

Since, diameter = 40.6 mm

So, radius(r)=20.3 mm and  \theta=\frac{2 \pi}{7} radians

So, area of sector= \frac{1}{2} r^{2} \theta

=\frac{1}{2} (20.3)^2 (\frac{2 \times 3.14}{7})

=184.85 square mm

5 0
4 years ago
Please help. What do I do
Marina86 [1]

1. let x = a number

x^2+5

2. let x = a number

2x-(x+19)

3. let x = a number

2x=1/3x + 9

4. let x = 1st integer

x+1 = 2nd integer

x+2 = 3rd integer

(x+x+1+x+2)/4

=(3x+3)/4

5. let x=smallest integer

x+1 = 2nd integer

x+2 = 3rd integer

x+3 = largest integer

x+x+1+x+2+x+3 = 9(x+3)

= 4x+6= 9x+27

6 0
3 years ago
I need help pls!!! I have 4 minutes left to answer these
ddd [48]

Answer:

its 3/5 so you just add the numerator to the numerator and add the denominator to the denominator.

4 0
3 years ago
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1. given

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3 years ago
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