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mixas84 [53]
3 years ago
15

Please help me with this 30 points

Mathematics
1 answer:
gogolik [260]3 years ago
3 0

Answer:

D

Step-by-step explanation:

For every 1 unit, it goes vertically 1/2

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15x – 2(4x + 1) = -9
Oksi-84 [34.3K]

Answer:

-1

Step-by-step explanation:

15x-8x-2=-9

Or, 7x=-9+2

Or, 7x=-7

Or, x=-7/7

Or, x =-1

6 0
3 years ago
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Sally invests $5000 in an account earning 8% interest, compounded continuously. After how many years will she double her investm
juin [17]
Double is double, so you can solve
.. 2 = 1*e^(.08t)
and get the correct value of t.

Taking logs,
.. ln(2) = .08t
.. ln(2)/.08 = t ≈ 8.7 . . . . years
6 0
3 years ago
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What is the result of subtracting the second equation from the first?
Ronch [10]

Answer:

-5x + 0y = -11

The y terms are eliminated

Step-by-step explanation:

- 4x – 2y = -2

X - 2y = 9

We want to subtract the second equation from the first

Distribute a minus sign to all the terms in the second equation

- 4x – 2y = -2  

X - 2y = 9

= (-5x + 0y = -11)

6 0
3 years ago
Please help me I am on a test
Sergeu [11.5K]

Answer:

C

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
1. If p(x) = 3x + 4x² - 5x +8, find p(-2).​
levacccp [35]

Step-by-step explanation:

\small{\underline{\tt{\red{Given}}}}

\rightarrow p(x) = -2

\small{\underline{\tt{\green{solution}}}}

\rightarrowp(x) = 3x +  {4x }^{2}  - 5x + 8

\rightarrowp( - 2) = 3( - 2) + 4( { - 2}^{2} ) - 5( - 2) + 8

\rightarrowp( - 2) =  - 6 + 16  + 10 + 8

\rightarrowp( - 2) = 10 + 18

\rightarrowp( - 2) =  28

\small\boxed{p(-2) = 28 }

Hope it helps

4 0
3 years ago
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