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Wewaii [24]
3 years ago
7

What can you factor out of 2x^2-4x+8

Mathematics
2 answers:
Sunny_sXe [5.5K]3 years ago
7 0

Answer: 2(x^2-2x+4)

Step-by-step explanation:

You can factour out 2:

2(x^2-2x+4)

Bezzdna [24]3 years ago
5 0

Answer:

2x² -  4x + 8 =

= 2(x² - 2x + 4)  

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A construction company paid $85,000 for a new fork lift. The fork lift depreciates at a rate of 15% per year. How long will it t
Hoochie [10]

Answer:

  13.2 years

Step-by-step explanation:

The decay rate is 15%, so the decay factor is 1 - 15% = 0.85. Then the exponential equation for the value is ...

  v(t) = 85000·0.85^t

We can set v(t) = 10,000 and solve for t:

  10000 = 85000·0.85^t

  10000/85000 = 0.85^t . . . . divide by 85000

  log(2/17) = t·log(0.85) . . . . . .reduce fraction, take logs

  t = log(2/17)/log(0.85) ≈ 13.2

It will take about 13.2 years for the value to fall below $10,000.

_____

Such a question is nicely answered by a graphing calculator.

8 0
4 years ago
A teacher decides to purchase a new car and considers two options. Option one is the new Zoomba for $60,000 with an expected dep
kupik [55]

Answer:

She chose Option 2 which is a linear option, because it offers a smaller lose    

in value compared to option 1 which is an exponential option.

The final value for option 2=$32,800

Step-by-step explanation:

Option 1

New Zoomba for 60000 with a depreciation rat of 2%per month for 3 years

Exponential equation;

y=a(1-r)^t

where;

y=future value

a=initial value=60000

r=depreciation rate=2% per month

t=time interval=12×3=36 months

Replacing;

y=60000(1-2/100)^36

y=60000(0.98)^36=28,992.79

The value after 3 years=$28,992.79

Initial value-Final value=(60000-28992.79)=$31007.21

Percentage of initial value lost=((Final value-Initial Value)/(Initial Value))×100

(31007.21/60000)×100=51.68%

Option 2

New starfish for $40,000 with a depreciation of $200 per month for 3 years

Linear equation;

y=a-bt

where;

y=Future value

a=Initial value=$40,000

b=the depreciation amount per time interval=$200 per month for 3 years

t=time interval=(3×12)=36 months

Replacing;

y=40000-(200×36)

y=32,800

Final value=y=$32,800

Initial value-Final value=(40000-32800)=$7200

Percentage of initial value lost=((Final value-Initial Value)/(Initial Value))×100

(7200/40000)×100=18%

Option 1(51.68%)>Option 2(18%) therefor Option 1 loses value at a faster rate than Option 2

She chose Option 2 which is a linear option, because it offers a smaller lose    

in value compared to option 1 which is an exponential option

4 0
3 years ago
Explain in your own words how to solve a one-step equation.
vovangra [49]

Answer:

Solve the problem by taking whats preformed on the variable, inverse it getting the variable by itself.

3 0
3 years ago
Factor<br> 49x2 + 28 xy + 4y2
shtirl [24]
So first u need to take a math torture
8 0
3 years ago
Read 2 more answers
What is 30% of 150 feet?
Tom [10]

Answer:

Step-by-step explanation:

\frac{30}{100}*150=3*15=45

5 0
3 years ago
Read 2 more answers
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