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vivado [14]
2 years ago
7

What is 3x x 4y simplified?

Mathematics
1 answer:
zzz [600]2 years ago
6 0

Answer:

x = {0, 4y}

Step-by-step explanation:

Simplifying

3x(x + -4y) = 0

(x * 3x + -4y * 3x) = 0

Reorder the terms:

(-12xy + 3x2) = 0

(-12xy + 3x2) = 0

Solving

-12xy + 3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3x'.

3x(-4y + x) = 0

Ignore the factor 3.

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve:

Simplifying

x = 0

Solving

x = 0

Move all terms containing x to the left, all other terms to the right.

Simplifying

x = 0

Subproblem 2

Set the factor '(-4y + x)' equal to zero and attempt to solve:

Simplifying

-4y + x = 0

Reorder the terms:

x + -4y = 0

Solving

x + -4y = 0

Move all terms containing x to the left, all other terms to the right.

Add '4y' to each side of the equation.

x + -4y + 4y = 0 + 4y

Combine like terms: -4y + 4y = 0

x + 0 = 0 + 4y

x = 0 + 4y

Remove the zero:

x = 4y

Simplifying

x = 4y

Solution

x = {0, 4y}

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Which graph shows the solution set of the compound inequality 1.5x-1>6.5 or 7x+3<-25
ad-work [718]
For this case we have the following inequations:
 1.5x-1> 6.5
 7x + 3 <-25
 Clearing x from each one we have:
 For 1.5x-1> 6.5:
 1.5x> 6.5 + 1
 1.5x> 7.5
 x> 7.5 / 1.5
 x> 5
 For 7x + 3 <-25:
 7x <-25-3
 7x <-28
 x <-28/7
 x <-4
 The solution set is:
 (inf, -4) U (5, inf)
 Answer:
 See attached image

8 0
3 years ago
Heights of young adult women in the United States are approximately Normal with a mean of 64 inches and standard deviation 2.7 i
sweet-ann [11.9K]

Answer:

The proportion of all young adult women in the United States are taller than 6 feet(72 inches ) is  

   P( X >  72) =0.0015233

Step-by-step explanation:

From the question we are told that

   The mean is  \mu =  64 \ inches

    The standard deviation is  \sigma =  2.7 \  inches

Generally  6 feet  is equivalent to 6 * 12 = 72 inches

Generally the proportion of all young adult women in the United States are taller than 6 feet(72 inches ) is mathematically represented as

       P( X >  72) =  P(\frac{X - \mu }{\sigma }  >  \frac{72  - 64 }{ 2.7 } )

\frac{X -\mu}{\sigma }  =  Z (The  \ standardized \  value\  of  \ X )

       P( X >  72) =  P(Z >  2.963 )

From the z-table

  The area under the normal  curve to the right corresponding to 2.963  is  

     P(Z >  2.963 ) = 0.0015233

=>   P( X >  72) =0.0015233

3 0
3 years ago
A store sells a 1 1/4 pound package of turkey for $9 what is the unit price of the turkey in the package?
Brilliant_brown [7]

Answer:

$7.2/lb

Step-by-step explanation:

9/1.25= 7.2

6 0
3 years ago
A miners' cage of mass 420 kg contains 3 miners of total mass 280 kg. The cage
svp [43]

Answer:

5817 Newtons.

Step-by-step explanation:

Total mass of the cage + the miners = 700 Kg which is a downward force of  700g N.

The net downward force = 700g - T where T is the tension (force) in the cable. The g = acceleration due to gravity = 9.81 m s-2.

We  calculate the  acceleration of the cage by using an equation of motion:

Distance = ut + 1/2 a t^2     where u = initial velocity , t = time and a = acceleration:

75 = 0(t) + 1/2 a (10^2)

50a =  75

a = 1.5 m s-2.

So using Newtons second law of motion

Force = mass * acceleration:

700*9.81 - T = 700 * 1.5

T = 700 * 9.81 - 700*1.5

= 5817 N.

8 0
3 years ago
How to Convert 50°toradians
Gelneren [198K]

Answer:

50 degrees =0.873 radian

Formula 50 degrees x π/180= 0.8727 radians

6 0
2 years ago
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