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Montano1993 [528]
3 years ago
14

Find the total surface area of this cone.

Mathematics
1 answer:
jekas [21]3 years ago
3 0

Answer:

36 pi

Step-by-step explanation:

pi r l + B

pi (4) 5 + pi (16)

36 pi

(l is solved by 4^2 + 3^2)

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You want to calculate the value of your car each year when it depreciates by 15%. What does the term y mean in the exponential f
insens350 [35]

Answer:

Value of the car after x years

Step-by-step explanation:

Exponential functions are generally expressed in the form: y=a(b)^x and since this function is decreasing, meaning it has an exponential decay, it can be expressed as: y=a(1-r)^x where r=rate of decay.

In this case the a represents the initial value or y-intercept, since when x=0, (1-r)^0 = 1, so we just have y=a(1) or y=a

The r represents the rate of decay

the x usually represents the time in seconds, days, months, or whatever unit is being used

The y value represents the value of whatever your measuring, and in this context it represents the value of the car after x years.

This is because a represents the initial value

After one year it's only 85% worth it's initial value or 15% less which is represented as 0.85(a)

After two years it's only 85% worth the previous year or 15% less the previous year, which is represented as 0.85(0.85(a))

This will continue to decrease the number of years increase

4 0
1 year ago
Read 2 more answers
A school district had four elementary schools to start the year. North Elementary School had 1,200 students, East Elementary Sch
kobusy [5.1K]

Answer:

C

Step-by-step explanation:

Add all the schools together, then divide by 5

5805/5

6 0
3 years ago
Read 2 more answers
Please help! I'm very confused. 20 points.
malfutka [58]
1) Use the distributive property to eliminate parentheses.
.. 3(6x) -3(5) -7(3x) -7(10) = 0
.. 18x -15 -21x -70 = 0 . . . . . . finish multiplying terms
.. -3x -85 = 0 . . . . . . . . . . . . . collect like terms
.. -85 = 3x . . . . . . . . . . . . . . . .add 3x
.. -85/3 = x . . . . . . . . . . . . . . .divide by 3
.. -28 1/3 = x . . . . . . . . . . . . . write as mixed number


2) 5 -(6 +9x) = 9 -(4x -1)
.. 5 -6 -9x = 9 -4x +1 . . . . . eliminate parentheses using the distributive property
.. -1 -9x = 10 -4x . . . . . . . . . collect like terms
.. -1 = 10 +5x . . . . . . . . . . . . add 9x
.. -11 = 5x . . . . . . . . . . . . . . . subtract 10
.. -11/5 = x . . . . . . . . . . . . . . divide by 5
.. -2 1/5 = x . . . . . . . . . . . . . write as mixed number
8 0
3 years ago
Help! Help! Help! Help!
alexgriva [62]
A. C(n)=10n+125

cost×number of buttons is equal to 10 cents times the number of buttons, plus the $125 cost of the button machine
6 0
3 years ago
Which linear equation is represented by the table?<br><br> x −2 1 3 6<br> y 7 4 2 −1
n200080 [17]

Answer:

help calll me daddy

Step-by-step explanation:

8 0
3 years ago
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