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Misha Larkins [42]
2 years ago
6

Perform the given operation and simplify. (m-2)(m*2+2m-3)

Mathematics
1 answer:
dedylja [7]2 years ago
6 0

Answer:

=4m^2−11m+6

Step-by-step explanation:

Given algebraic expression:

(m-2)(m•2+2m-3)

To:

Simplify

Solution:

(m−2)(m(2)+2m−3)

=(m)(m(2))+(m)(2m)+(m)(−3)+(−2)(m(2))+(−2)(2m)+(−2(−3)

=2m^2+2m^2−3m−4m−4m+6

=4m^2−11m+6

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Question # 4
Sedbober [7]

Answer:

Brett  is 62 years old, Carl is 70 years old and Mark is 80 years old.

Step-by-step explanation:

let the age of Brett be <em>x</em> years.

thus the age of Mark is <em>(x+18)</em> years .

{as it is given that Brett is 18 years younger than Mark}

∴ Age of Carl is <em>(x+8) </em>years .

Now the sum of ages,

3x+26=212 (given)

3x=186

∴x=62

thus , the age of Brett is 62 years , the age of mark is <em>(x+18)</em>= 80 years and the age of Carl is <em>(x+8)</em>= 70 years

3 0
3 years ago
What are the values of x in the equation 4x^2+4x-3=0
ludmilkaskok [199]
I have an answer and an explanation!

ANSWER:X=\frac{1}{2}   (or) x= \frac{-3}{2}


Explanation:

<span>{Let's solve your equation step-by-step.}
</span>4 x^{2} +4x-3=0

<span>{Step 1: Factor left side of equation.}
</span>(2x-1)(2x+3)=0

{<span>Step 2: Set factors equal to 0.}
</span>2x-1=0 (or) 2x+3=0<span>
</span>
3 0
4 years ago
The following tables each show the inventory of a warehouse and the number of orders for four different products which have been
snow_lady [41]
Orders: x
Inventory: y

1) First table
x2-x1=6-3→x2-x1=3
y2-y1=1920-1960→y2-y1=-40

x3-x2=9-6→x3-x2=3=x2-x1
y3-y2=1900-1920→y3-y2=-20 different to y2-y1=-40. The table does not represent a linear relationship.

2) Second table
x2-x1=7-5→x2-x1=2
y2-y1=1860-1900→y2-y1=-40

x3-x2=9-7→x3-x2=2=x2-x1
y3-y2=1820-1860→y3-y2=-40=y2-y1

x4-x3=11-9→x4-x3=2=x3-x2
y4-y3=1780-1820→y4-y3=-40=y3-y2

x5-x4=13-11→x5-x4=2=x4-x3
y5-y4=1740-1780→y5-y4=-40=y4-y3

The table represents a linear relationship.

3) Third table
x2-x1=2-1→x2-x1=1
y2-y1=1000-2000→y2-y1=-1000

x3-x2=3-2→x3-x2=1=x2-x1
y3-y2=500-1000→y3-y2=-500 different to y2-y1=-1000. The table does not represent a linear relationship.

4) Fourth table
x2-x1=6-4→x2-x1=2
y2-y1=1640-1840→y2-y1=-200

x3-x2=8-6→x3-x2=2=x2-x1
y3-y2=1360-1640→y3-y2=-280 different to y2-y1=-200. The table does not represent a linear relationship.

Answer: The second <span>table best represents a linear relationship.</span>
8 0
4 years ago
Read 2 more answers
ANSWER 3 QUESTIONS.
77julia77 [94]
1.1000
3.81
sorry other one I don't know
4 0
3 years ago
What is the surface area of the rectangular pyramid?
marin [14]

Answer:

181.044m²

Step-by-step explanation:

First, work of the surface area of the base (bottom rectangle area)

Formula : base × height

6×2=12m²

Formula : LW+L

For the 8.8 bit i got 83.734 (sorry i can't be asked right now to put down all my working out)

and for the 9 i got 85.31

add them all together we get 181.044

7 0
3 years ago
Read 2 more answers
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