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OLEGan [10]
3 years ago
14

How many area codes (ABC) would be possible if the first 2 digits can be any number 2-9 & last digit can be any number 0-9?

Mathematics
1 answer:
Korolek [52]3 years ago
8 0
The answer would be A. 640

Possibilities for the first two are 8 and 8 (2-9 is 8 numbers) and the last is 10 (0-9 is 10 numbers)

So the probability is found by multiplying 8*8*10 which is 640
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Point A is (-6,-5) Point C is (4,0) Find the coordinates of point B on AC such that the ratio of AB to BC is 2:3.
Fed [463]

Answer:

(-2, -3)

Step-by-step explanation:

x coord. from -6 to 4 is 10 units / 5 parts = 2

point B is 2 units * 2 from point A, so x = -2

y coord. from -5 to 0 is 5 units / 5 parts = 1

point B is 2 units * 1 from point A, so y = -3

3 0
3 years ago
Calculate the book value of a new maxi taxi costing $44000 after 5 years if it depreciates each year by 13% a. $22,930.52 b. $21
Marat540 [252]

Answer:

A=$21930.52

Step-by-step explanation:

Given data

Principal =44000

Time =5years

Rate of depreciation =13%

The expression for the depreciation is

A=P(1-r)^t

Substitute

A=44000(1-0.13)^5

A=44000(0.87)^5

A=44000*0.4984209207

A=21930.52

3 0
3 years ago
What is the equation of the line through(4,2) and (0,-2)?
Snowcat [4.5K]

Answer:

y =  x - 2

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (4, 2 ) and (x₂, y₂ ) = (0, - 2 )

m = \frac{-2-2}{0-4} = \frac{-4}{-4} = 1

the line crosses the y- axis at (0, - 2 ) ⇒ c = - 2

y = x - 2 ← equation of line

4 0
2 years ago
if you are 15 years old now, which equation could be used to solve for your age, y, 12 years from now ?
Vaselesa [24]

Answer:

Hi there!

If you are 15 right now, you would use the expression: 15+12=y

3 0
3 years ago
What is the percent change from 125 cm to 87.5 cm?
olganol [36]
If you are asking how to subtract 125 centimeters and make it 87.5, you have to subtract from 125. The easiest way to do this is to subtract 87.5 from 125, getting 37.5. So, if you add 37.5 to 87.5, you will have 125. So, the correct answer is to subtract 37.5 to get 87.5.

Hope this helps you:)
5 0
4 years ago
Read 2 more answers
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