Answer:
A
Step-by-step explanation:
because mathematics of mathatics equals mathematics
Answer:
Step-by-step explanation:
A circle centered in
an radius
has a equation:

So, your equation wold be:

Answer:
2.(b) w= 3
3. x= -3 or x= 3
Step-by-step explanation:
2.(b) <u>Method 1:</u>

Simplify:

×5 on both sides:

Expand:

Bring constants to 1 side, w terms to the other:

Simplify:

Divide both sides by 3:

<u>Method 2:</u>

Multiply by 5 throughout:

Expand:

Simplify:

+9 on both sides:

-4w on both sides:

Simplify:

Divide by 3 on both sides:

3. 
Multiply by 3x on both sides:

Expand:

Simplify:

Divide by 6 on both sides:

-9 on both sides:

Factorise:
*Since a²-b²= (a +b)(a -b),

Thus,
x +3= 0 or x -3= 0
x= -3 or x= 3
The cost of 300 cm fabric is $15.
Step-by-step explanation:
Given,
Cost of fabric is $5 per meter.
To find the cost of 300 cm fabric.
1 m = 100 cm
We will apply unitary method.
Cost of 100 cm of fabric is $5
Cost of 1 cm of fabric is $
Cost of 300 cm of fabric is $
= $ 15
Hence,
The cost of 300 cm fabric is $15.
Answer:D
Step-by-step explanation:
The equation is y=mx+b. Here the slope is 1/5 and b is 5