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otez555 [7]
3 years ago
12

Find the sum of the digits 10^15−1.

Mathematics
2 answers:
Shtirlitz [24]3 years ago
8 0

Answer:

135

Step-by-step explanation:

10^15 = 1 000 000 000 000 000

10^15 - 1 = 999 999 999 999 999

There are 15 nines

15*9 = 135

Alchen [17]3 years ago
4 0

Answer:

149

Step-by-step explanation:

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aleksley [76]

The exponential model has an initial value of 3

The exponential model of the data is f(x) = 3 * (1.2)^x

<h3>How to determine  the exponential model?</h3>

From the complete question,we have the following parameters:

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The exponential model is then calculated as:

f(x) = a * (1 + r)^x

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f(x) = 3 * (1 + 0.2)^x

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Read more about exponential models at:

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2 years ago
What is the equation for the sum of two numbers is 77. One number is 27 more than the other
Vikentia [17]
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6 0
3 years ago
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Oksi-84 [34.3K]
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3 years ago
Math algebra 2 show you’re work plz
LenKa [72]

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Answer:

  (t, u, w) = (1, -2, -2)

Step-by-step explanation:

A graphing calculator makes short work of this, giving the solution as ...

  (t, u, w) = (1, -2, -2)

__

There are many ways to solve this "by hand." Here's one of them.

Add the first and third equations. Their sum is ...

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Add this to twice the second equation. That sum is ...

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The solution is (t, u, w) = (1, -2, -2).

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3 years ago
A car rental agency advertised renting a car for $ 23.95 per day and $ 0.32 per mile. of david rents this car for 4 ​days, how m
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