Ask question

Ask question

All categories

3 years ago

7

The expression 3r - 6 can be written as _____. 3(r - 2) 3(r - 6) 3(3r - 6) user: 18 - 2[x (x - 5)] user: simplify 18 - 2[x (x -

5)]. user: simplify 18 - 2[x (x - 5)]. 8 - 4x 28 - 4x 28 - 2x

1 answer:

Vlada [557]3 years ago

4 0

The expression 3r - 6 can be written as 3(r-2), because when you distribute 3(r-2) you get 3r -6. So they are equivalent.

You might be interested in

3x-y+2=0 in rectangle form

kotegsom [21]

Complete Question:

Convert 3x-y+2=0 in rectangle form to polar form

Answer:

r ( 3cosθ - sinθ) = -2

Step-by-step explanation:

The equation so given is already in rectangular form, the task is to convert it to polar form.

3x - y + 2 = 0

To transform an equation from the rectangular to the polar coordinate:

x = r cosθ

y = r sinθ

Substitute the representations for x and y into the given equation:

3(r cosθ) - (r sinθ) + 2 = 0

3rcosθ - rsinθ = -2

The polar representation of the equation then becomes:

r ( 3cosθ - sinθ) = -2

8 0

3 years ago

Algebra!!!<br> 3 Questions Only take if you know ALL Answers<br> PLZZZ QUICK

vitfil [10]

Answer:

1. -7.5

2. $1

3. 40

Step-by-step explanation:

For number 1, it can be solved by using the PEMDAS method, or see explanation below:

6x - 4x - 36 = 6 - 2x

2x - 36= -2x + 6

4x + 36 = 6

4x = -30

x = -15/2 or -7.5

For number 2, substitute 3 into both equations:

f(x) =1.50(3) + 2.00

and

f(x) = 2.00(3) + 1.50

This would get $6.50 and $7.50, which, if subtracted, gets $1.

For number 3, do something similar to the previous problem. Substitute 3 for x. It would be 5(2^3), or 40.

Hope this helps!

7 0

3 years ago

I missed the day we learned this, please help

love history [14]

Answer:

The slope is 1/3

Step-by-step explanation:

Take 2 points on the line, lets use (0,50) and (30,60)

x1 y1 x2 y2

Use slope formula:

y2 - y1 / x2 - x1

60 - 50 / 30 - 0

10 / 30

which can be simplified to:

1/3

7 0

2 years ago

A function is a rule that assigns each value of the independent variable to exactly one value of the dependent variable. True or

vesna_86 [32]

<span>The answer is true
Let's imagine that we have the following function function:
</span> $y = x ^ 2 
$
<span>We have to:
Independent variable: x
Dependent variable: y
For x = -1:
</span> $y = (- 1) ^ 2 = 1 
$
<span> For x = 1:
</span> $y = (1) ^ 2 = 1 
$
<span> We observe that the independent variable can only obtain one result.
Answer:
True</span>

3 0

3 years ago

Read 2 more answers

Maureen rolls a fair dice and flips a fair coin.

Taya2010 [7]

1/6 times 1/2 = 1/12

5 0

2 years ago