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Rudiy27
3 years ago
13

9(w - 2) = – 18 someone help me

Mathematics
2 answers:
drek231 [11]3 years ago
6 0

Step-by-step explanation:

First multiply

9w - 18 = - 18

9w = - 18 + 18

9w = 0

w = 0 / 9 = 0

w = 0

Alisiya [41]3 years ago
6 0

Step-by-step explanation:

<u>soln</u>

9(w-2)= -18

9w-18= -18

then you correct like terms together

9w= -18+18

9w=0

then you divide by 9 both sides

9w/9=0/9

w=0

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I dont understand help me
DochEvi [55]
1.5x=3

First you want to get x by itself so divide both sides by 1.5

3/1.5=2
x=2

4 0
3 years ago
A tile installer plots an irregular shape on grid paper. Each square on the grid represents 1 square centimeter. What is the are
Gelneren [198K]

Answer:

34cm²

Step-by-step explanation:

Find diagram in the attached file.

Since each square on the grid represent 1cm², the length of the each square will be 1cm

Area of the irregular shape can be gotten by breaking the irregular shape into three shapes which are the triangle, rectangle and a parallelogram.

Area of the irregular shape = area of triangle + area of rectangle + area of parallelogram

For TRIANGLE

Area of triangle = 1/2×base×height

Since the base of triangle is on 4square grid,

Base = 4cm

Height = 2cm

Area = 1/2×4×2

Area of ∆ = 4cm²

FOR RECTANGLE

Area of rectangle = Length ×Breadth

Length = 3cm

Breadth = 5cm

Area of the rectangular shape = 3×5

= 15cm²

FOR PARALLELOGRAM

Area of a parallelogram = Base × Height

Base = 5cm

Height = 3cm

Area = 5cm×3cm

Area = 15cm²

Area of the irregular shape = 4cm²+15cm²+15cm²

=34cm²

6 0
3 years ago
3x^2+6x-9=0 complete the square
PolarNik [594]
You could simplify this work by factoring "3" out of all four terms, as follows:

3(x^2 + 2x - 3) =3(0) = 0

Hold the 3 for later re-insertion.  Focus on "completing the square" of x^2 + 2x - 3.

1.  Take the coefficient (2) of x and halve it:  2 divided by 2 is 1
2.   Square this result:  1^2 = 1
3.   Add this result (1) to x^2 + 2x, holding the "-3" for later:
                    x^2 +2x 
4    Subtract (1) from x^2 + 2x + 1:     x^2 + 2x + 1               -3 -1  =    0, 
       or      x^2 + 2x + 1 - 4 = 0
5.   Simplify, remembering that x^2 + 2x + 1 is a perfect square:

                        (x+1)^2 - 4 = 0

We have "completed the square."  We can stop here.  or, we could solve for x:  one way would be to factor the left side:

            [(x+1)-2][(x+1)+2]=0     The solutions would then be:

             x+1-2=0=> x-1=0, or x=1, and
             x+1 +2 = 0 => x+3=0, or x=-3.  (you were not asked to do this).


3 0
3 years ago
Write an equation in slope intercept form (y=mx+b) for the graph below
mojhsa [17]

Answer:

y=-x+2

Step-by-step explanation:

Y intercept = 2

Slope = -1/1 = 1

y=-1x+2

Simplified

y=-x+2

4 0
3 years ago
What is reasonable estimate for 467023
Galina-37 [17]
470000 is the most reasonable
6 0
3 years ago
Read 2 more answers
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