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3 years ago

Which is an exponential decay function?

Mathematics

1 answer:

AVprozaik [17]3 years ago

8 0

Decay functions hav exponential terms that are one of

... (number greater than 1)^(negative exponent)

... (number less than 1)^(positive exponent)

The choice that meets these requirements is

... f(x) = 3/2 (8/7)^-x

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What principal amount would yield an interest of $36 in 3 years at 3%? P=

luda_lava [24]

Answer: Let principle sum be x

Time = 3 years

Rate = 3% per annul

SI = $36

SI = \frac{P*R*T}{100}

36 = \frac{x*3*3}{100}

x = 36* \frac{100}{9}

x = 400

So the sum that would yield interest of $36 is $400

Step-by-step explanation:

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3 years ago

A local gym instructor has a course load that allows her to teach eight classes. At an interest meeting, 8 people wanted high-‐

cricket20 [7]

Answer:

The final curse load of the local gym instructor is this:

High-‐impact aerobics = 1

Low-‐impact aerobics = 4

Jazzercise = 1

Step exercise = 2

Step-by-step explanation:

1. Let's apportion the class load using the Hamilton method

Number of classes the local gym instructor can teach = 8

Total number of students that want to take a class = 114 (8 people wanted high-‐impact aerobics, 64 wanted low-‐impact aerobics, 11 wanted jazzercise, and 31 wanted step exercise)

Standard divisor = 114/8 = 14.25

Now, we can apportion the students in in Standard quotas, this way:

High-‐impact aerobics = 8/14.25 = 0.5614

Low-‐impact aerobics = 64/14.25 = 4.49

Jazzercise = 11/14.25 = 0.7719

Step exercise = 31/14.25 = 2.1754

Now, we find the Minimum quota, just considering the whole number and don't taking into account the decimals, this way:

High-‐impact aerobics = 0

Low-‐impact aerobics = 4

Jazzercise = 0

Step exercise = 2

As we can see we have 6 classes and there are 2 still pending. Those 2 goes to the classes with the highest decimal portion, in this case, Jazzercise .7719 and High-‐impact aerobics with .5614.

The final course load is this:

High-‐impact aerobics = 1

Low-‐impact aerobics = 4

Jazzercise = 1

Step exercise = 2

7 0

3 years ago

Which expression is equivalent to 128x8,329 ? Assume y20 and 720

kaheart [24]

Answer:767600640

Step-by-step explanation: If 720 equals x, you multiply 128 by 720, and multiply the answer by 8,329.

8 0