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My name is Ann [436]
3 years ago
10

For questions 1 and 2, simplify the expression. Then, identify the terms, constants, and coefficients of the simplified expressi

on.
1. 8x2 - 3x + 6x2 + 5x - 9



2. 5(2x + 4) + 3x



For question 3, translate the verbal expression to an algebraic expression. Then, identify the terms, constants, and coefficients.

3. The product of three and x, added to 4



4. Explain what the expression 7(3x) does not equal 21x, but (5*2)x does equal 10x.



5. A bank account balance for an account with an initial deposit of P dollars eans interest at an annual rate of r. The amount of money in the account after n years is described using the following expression: P(1+r)n. What effect does increasing the value of r have on the amount of money after n years?



6. A cell phone company bills on a monthly basis. Each bill includes a $19.95 service fee (which includes 500 minutes), a $3.95 tax, and a $0.15 per minute fee for each minute over the first 500 minutes. Write an expression that describes the cost of a month's bill. Then, tell how the expression would change if the service fee were reduced.
Mathematics
1 answer:
natta225 [31]3 years ago
5 0

Answer:

are the first 2 power of two like ur question is confusing

Step-by-step explanation:

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Ines has saved $5. She doubles the amount she saves each week. Does the function have a constant difference or a constant ratio?
salantis [7]

Answer:

The function have a constant ratio

No, it does not represent an exponential function.

Step-by-step explanation:

As given,

Ines has saved $5. She doubles the amount she saves each week.

⇒ In first week she saved = $5

   In second week she saved = 2×$5 = $10

   In third week she saved = 2×$10 = 20

  In fourth week she saved = 2×$20 = 40

and so on..

∴ we get the series

5, 10, 20, 40 ,.......

If the series is given as a, b, c, d, ..... , then

The common difference is defined as d = b-a = c-b

The common ration is defined as r = \frac{b}{a} = \frac{c}{b}

Here, in the given question

The series is - 5, 10, 20, 40

This has no common difference , d =   10 - 5 (= 5 )≠ 20 - 10 (= 10)

As 5 ≠ 10

So the function does not define common difference .

Now,

This has common ratio , r =  \frac{10}{5} (=2) = \frac{20}{10}(=2)

As 2 = 2

So, the function represent common ratio

Now,

The function does not represent an exponential function because it is increased by common ratio.

7 0
3 years ago
What is the mean? <br> 19, 16, 24, 12, 16, 21, 18
attashe74 [19]
I'm pretty sure it's 12.
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Read 2 more answers
PLEASE HELP. Prove that the value of the expression: b (36^5−6^9)(38^9−38^8) is divisible by 30 and 37.
pishuonlain [190]

Answer:

Step-by-step explanation:

First factor the second binomial

38^9 - 38^8 = 38^9 (38 - 1 ) = 38^9(37)

So there's your 37. This whole expression is divisible by 37

Now do the first  binomial

36^5 - (36^4)*6

36^4(36 - 6)

36^4(30) and there's your thirty.

That first term is going to cause a bit of trouble showing that 36^4 * 6 = 6^9

6(36^4) = 6(6^2)^4 = 6^1 * 6^8 = 6^9

So this factors into 30*(36^4)*37*38^9

3 0
3 years ago
What is the volume of this cylinder?<br><br> ??
uysha [10]

Answer:

197.92

Step-by-step explanation:

pretty simple not hard bub

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3 years ago
Use the domain {-1, 0, 1, 2, 3, 4} and plot the points on the graph that would best satisfy the equation y = 2x.
Dmitrij [34]
Domain is ur x values

y = 2x...when x = -1
y = 2(-1)
y = -2.....(-1,2) satisfies this equation

y = 2x....when x = 0
y = 2(0)
y = 0....(0,0) satisfies it

y = 2x....when x = 1
y = 2(1)
y = 2....so (1,2) satisfies it

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y = 2(2)
y = 4....(2,4) satisfies it

y = 2x...when x = 3
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y = 6.....(3,6) satisfies it

y = 2x...when x = 4
y = 2(4)
y = 8.....(4,8) satisfies it
4 0
3 years ago
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