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labwork [276]
3 years ago
5

True or false? f (x) = 2 · (1/5)^x represents an exponential function growth.

Mathematics
1 answer:
nekit [7.7K]3 years ago
7 0

Hi there!

\large\boxed{\text{False.}}

f(x) = 2(1/5)ˣ

Recall the form of an exponential function:

f(x) = a(b)ˣ where:

a = initial value

b = rate of decay/growth

If b > 1, the function is undergoing exponential growth. If b < 1, then the function is undergoing exponential decay.

1/5 < 1, so the function is undergoing exponential decay, not growth.

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For the system of equations:<br> -4s + 2t = -5<br> 8s - 6t=7<br> What is the value of s?
dedylja [7]

Answer:

s = 2

Step-by-step explanation:

I'll be using the substitution method.

5 0
2 years ago
An insured's roof cost $4,000 when installed 5 years ago. It has been damaged by hail and must be replaced. The new roof will co
hoa [83]

Answer:

ACV=$4,500

Step-by-step explanation:

We have that the actual cash value (ACV) is defined as:

ACV=\dfrac{R\times(E-C)}{E}

Where:

ACV = actual cash value

R = replacement cost or purchase price of the item

E = expected life of the item

C = current life of the item

Then we have R=$6,000, C=5years, and to find the expected life of the item we can use the depreciating of the roof, then if the roof is depreciating $200 each year we just need to divide $4,000 by $200 to find the expected life of the roof:

\dfrac{4,000}{200}=20

Then the espected life of the roof is 20 years, with this result we have all the data, then:

ACV=\dfrac{\$6,000\times (20-5)}{20}=\dfrac{\$6,000\times (15)}{20}=\dfrac{\$90,000}{20}=\$4,500

Then the ACV is $4,500

5 0
3 years ago
12/3/5 you need to simplify
Sveta_85 [38]

Answer:

0.8

Step-by-step explanation:

first divide 12 by 3 the answer will be for now divide 4 by 5

Ans - 0.8

8 0
3 years ago
Need help ASAP!!!!Make sure you can explain your answer
SCORPION-xisa [38]

Answer:

see below

Step-by-step explanation:

point A(x,y) becomes A'(-x,-y).

So point E (-3,-5) becomes  E'( 3,5)

F (-1,-1) becomes F'(1,1)

and G (0,-5) becomes G'( 0,5)

8 0
3 years ago
[(17-9)x(3x2)]÷2 find the value of the following expression
MatroZZZ [7]
Solve the parenthesis firt.
17-9 = 8
3*2 = 6    now multiply 6 by 8 that equals 48
now divide 48 by 2
48÷2= 24
8 0
3 years ago
Read 2 more answers
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