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o-na [289]
3 years ago
14

Y=52(0.42)^x identify if it's growth or decay and determine the percentage rate of increase or decrease

Mathematics
1 answer:
Shkiper50 [21]3 years ago
4 0

Answer:

58%

Step-by-step explanation:

Given the exponential relation :

Y=52(0.42)^x

Since 0.42 is less than 1, then we can infer that the expression is a Decay function ;

. General form of a exponential function :

y = A(1 - r)^x ; r = Decay rate

Comparing the general equation with the equation given ;

The percentage rate of decrease is obtained thus :

1 - r = 0.42

1 - 0.42 = r

r = 0.58

Rate = 0.58 * 100%

Rate = 58%

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17. Explain whether 11t - 4t is equivalent to 4t - 11t.
nydimaria [60]

Answer:

So Equation ( 1 )  is NOT Equivalent to Equation ( 2 )

Step-by-step explanation:

Given:

11t - 4t ..............Equation ( 1 )

4t - 11t  ................Equation ( 2 )

To Find:

Whether Equation ( 1 )  is Equivalent to Equation ( 2 )

Support your answer by evaluating the expression for t = 2.

Solution:

For t=2 Equation ( 1 ) we get

11t - 4t=11(2) - 4(2)=22-8=14

For t=2 Equation ( 2 ) we get

4t - 11t=4(2) -11(2)=8-22=-14

From above we get two different values

So Equation ( 1 )  is NOT Equivalent to Equation ( 2 )

4 0
3 years ago
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vekshin1

Answer:

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Step-by-step explanation:

5 0
3 years ago
​$6300 is​ invested, part of it at 11​% and part of it at 6​%. For a certain​ year, the total yield is ​$533.00. How much was in
andrew-mc [135]

Answer:

Invested at 11% : 3100

Invested at 6% : 3200

Step-by-step explanation:

let x= amount invested at 11%

let y= amount invested at 6%

we can write

Equation 1: x+y=6300

Equation2: .11x+.06y=533

Divide equation 2 by .06 to get

1.8333333x+y=8883.33333333

Subtract equation 2 from equation 1

.8333333x= 2583.33333333

x= 3100

Plug in x= 3100 into equation 1

3100+y= 6300

y= 3200

7 0
2 years ago
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