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vesna_86 [32]
3 years ago
10

It’s algebra can u helpppp lolsss

Mathematics
2 answers:
True [87]3 years ago
6 0

Answer:

6z - 6

Step-by-step explanation:

When you expand you are removing brackets. This means you multiply the outer number by the ones inside thus:

2(3z-3)

2 times 3z is 6z .

2 times 3 is 6.

So the answer is 6z - 6.

HOPE THIS HELPED

ddd [48]3 years ago
3 0
6z- 6
Just do the distributive property
I know it’s confusing at first but don’t worry! I’m sure you’ll do great!
Hope this helps!
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What is the slope of the line that passes through (2, 12) and (4, 20)? (1 point)
serg [7]
M=20-12/4-2
m=8/2
m=4, is the answer
7 0
3 years ago
An equation for the depreciation of a car is given by y=A(1-r)t where y=current value of the car.A=original cost r=rate of depre
Ann [662]
<h3>Answer: Approximately 6.58 years old</h3>

The more accurate value is 6.57881347896059, which you can round however you need. I picked two decimal places.

==================================================

Explanation:

Let's pick a starting value of the car. It doesn't matter what the starting value, but it might help make the problem easier. Let's say A = 1000. Half of that is 1000/2 = 500.

So we want to find out how long it takes for the car's value to go from $1000 to $500 if it depreciates 10% per year.

The value of r is r = 0.10 as its the decimal form of 10%

t is the unknown number of years we want to solve for

---------------------------

y = A(1 - r)^t

500 = 1000(1 - 0.1)^t

500 = 1000(0.9)^t

1000(0.9)^t = 500

0.9^t = 500/1000

0.9^t = 0.5

log( 0.9^t ) = log( 0.5 )

t*log( 0.9 ) = log( 0.5 )

t = log( 0.5 )/log( 0.9 )

t = 6.57881347896059

Note the use of logs to help us isolate the exponent.

6 0
3 years ago
What is the product?
vladimir1956 [14]

Answer:

6x^3-33x^2+45x-6

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Find the value of 1.999.... in the form of p<br> q<br> where p and q are integers.
andreyandreev [35.5K]

1.999… is exactly the number 2.

Let <em>x</em> = 1.999… . Then 1000<em>x</em> = 1999.999… . Subtract <em>x</em> from this to eliminate the fractional part, and you get

1000<em>x</em> - <em>x</em> = 1999.999… - 1.999…

1000<em>x</em> - <em>x</em> = 1999 - 1

999<em>x</em> = 1998

<em>x</em> = 1998/999 = 2/1 = 2

So <em>p</em> = 2 and <em>q</em> = 1.

8 0
3 years ago
When using the given diagram to determine the area of the pentagon by decomposition, which statements are correct?:
pogonyaev

Answer:

Options (B) and (E)

Step-by-step explanation:

Area of ΔABC = \frac{1}{2}(\text{Base})(\text{Height})

                        = \frac{1}{2}(14)(6)

                        = 42 in²

Area of trapezoid ADEC = \frac{1}{2}(b_1+b_2)h

[Here, b_1 and b_2 are the parallel sides and 'h' is the height of the isosceles trapezoid given]

= \frac{1}{2}(10+14)(8)

= 96 in²

Area of the pentagon = Area of triangle ABC + Area of trapezoid ADEC

                                    = 42 + 96

                                    = 138 in²

Therefore, Options (B) and (E) are the correct options.

6 0
3 years ago
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