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3 years ago

FACTORIZEA(X)=(2+3x)(-x+7)(-2+3x)(2x+1)

Mathematics

1 answer:

frozen [14]3 years ago

5 0

Answer:

That's the ans.

Step-by-step explanation:

I screentshot the ans.

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I really need help asap

Tpy6a [65]

Try by dividing this shape into three different squares then find the area of each shape then add them together.

4 0

3 years ago

Graph -5x-8y=40

Triss [41]

Answer:

Please, see the attached file.

Thanks.

Step-by-step explanation:

-5x-8y=40

This is a linear equation, and its graph is a right line, we only need two points, because by two points only goes trough only a right line:

1) For x=0→ -5(0)-8y=40

0-8y=40

-8y=40

Dividing both sides of the equation by -8:

-8y/(-8)=40/(-8)

y=-5

Point=(x,y)→Point=(0,-5)

2) For y=0→ -5x-8(0)=40

-5x-0=40

-5x=40

Dividing both sides of the equation by -5:

-5x/(-5)=40/(-5)

x=-8

Point=(x,y)→Point=(-8,0)

With these two points (0,-5) and (-8,0) we can draw the right line.

8 0

4 years ago

Write the equation in slope intercept form

notsponge [240]

Hello: <span>
<span> an equation is : y =ax+b ( a is a slope )

parallel to the line (q) : y=6/5x-1 a =6/5 ( same slope )
the equation of (r) : is : y = 6/5x+b</span></span>

the line through point (5,5) : 5= (6/5)(5)+b ...b=-1

an equation of (r) : is : y = 6/5x-1

or : 6/5x-y = 1

6 0

3 years ago

How would i do this problem and show my work x+9= -12

boyakko [2]

To solve this problem just do the following,
x+9=-12
-9 -9
x=-21
Check
-21+9=-12 = True

Hope this helps!=)

5 0

3 years ago

Read 2 more answers

An open top rectangular box is to be made from a rectangular piece of metal that is 3cm wide and 8cm long by cutting a square fr

Tanzania [10]

Answer:

x = 0.67 cm

Step-by-step explanation:

Let call " x " the length of the side of the square to cut from each corner

then the sides of the future box would be

L = 8 - 2x and D = 3 - 2x

The volume of the box is:

V = L*D*x

And such volume as function of x is

V(x) = ( 8 - 2x ) * ( 3 - 2x ) * x ⇒ V(x) = ( 24 - 16x - 6x + 4x²) * x

V(x) = 4x³ - 22x² + 24x

Taking derivatives on both sides of the equation we get:

V´(x) = 12x² - 44x + 24

Then V´(x) = 0 ⇒ 12x² - 44x + 24 = 0 ⇒ 3x² - 11x + 6 = 0

We got a second degree equation solving for x

x₁,₂ = [11 ± √ 121 - 72 ] / 6

x₁ = ( 11 + 7 ) / 6 x₁ = 3 we dismiss this solution since according to problem statement one side would become negative

Then

x₂ = ( 11 - 7 ) / 6 ⇒ x₂ = 4/6 ⇒ x₂ = 0.67 cm

As the second drivative is smaller than 0 then there is a maximun in that point

V´´(x) = 12x - 44 < 0

Sides of the box

L = 8 - 2x ⇒ L = 8 - 2*(0.67) ⇒ L = 8 - 1.34 ⇒ L = 6.66 cm

D = 3 - 2x ⇒ D = 3 - 2* (0.67) ⇒ D = 3 - 1.34 ⇒ D = 1.66 cm

Heigh = x = 0.67 cm

V(max) = 6.66*1.66*0.67

V(max) = 7.41 cm³

5 0

3 years ago

FACTORIZEA(X)=(2+3x)(-x+7)(-2+3x)(2x+1)​​

FACTORIZEA(X)=(2+3x)(-x+7)(-2+3x)(2x+1)