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anastassius [24]
3 years ago
10

If f(x) = -2x - 3, find f(0) - 7. help please!! I will give brainliest!!!!

Mathematics
1 answer:
VikaD [51]3 years ago
7 0

Hi there!

\huge\boxed{-10}

f(x) = -2x - 3

Plug in 0 for "x" to solve for f(0):

f(0) = -2(0) - 3

f(0) = -3

Since the question is asking you to evaluate f(0) - 7, simply subtract:

-3 - 7 = -10.

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If 2a-b:2a+b=1:2find the value of a:b​
weqwewe [10]

Answer & Step-by-step explanation:

2a - b : 2a + b = 1 : 2

2a - b = 1

-                         Elimination

2a + b = 2

-b - (b) = -1

-2b = -1

b = 0.5

---------------------------------------------------------------------------------

2a + b = 2           Substitution

2a + 0.5 = 2

2a = 1.5

a = 0.75

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a:b

0.75 : 0.5

or

3/4 : 1/2

Hope this helps!!!

 

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3 0
2 years ago
Which number line shows the solution to the inequality n + 6 < 4? ​
Anestetic [448]

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Step-by-step explanation:

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3 0
3 years ago
Find the general solution of the differential equation y'' - 2y' - 3y = -3te^(-t)
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3 years ago
Catherine paid $159.00 for an MP3 player. If the price paid includes a 6% sales tax, which of the following equations can be use
Colt1911 [192]

<u>ANSWER: </u>

The equation is y = 1.06x, so option D is correct.

<u>EXPLANATION:</u>

Given:

Amount Catherine is paid  for an MP3 player=$159.00  

The price paid includes a sales tax= 6%

To find:

Equations  that can be used to determine the price of the MP3 player before tax?

Solution:

Now, we know that, total cost = selling price of item + sales tax on item

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7 0
2 years ago
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