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mars1129 [50]
2 years ago
14

Find the sum of 3x² + 5x - 1 and x² - 2x -7​​

Mathematics
2 answers:
vova2212 [387]2 years ago
8 0

Answer:

4x^2+3x-8

Step-by-step explanation:

gizmo_the_mogwai [7]2 years ago
7 0

<h3>{3x}^{2}  + 5x - 1 +  {x}^{2}  - 2x - 7 \\  {3x}^{2}  +  {x}^{2}  + 5x - 2x - 1 - 7 \\  {4x}^{2}  + 3x - 8</h3>
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3 years ago
The slope formula can be used to prove that a triangle has:
lisabon 2012 [21]

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a right angle

Step-by-step explanation:

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8 0
3 years ago
Due to conservation efforts, the gray whale has been removed from the endangered species list. There are now 13,000 in the world
brilliants [131]

Answer:

P = 13,000(1.11) ^ t

Step-by-step explanation:

This scenario can be modeled using an exponential growth equation.

The exponential growth equations have the following form:

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In this case we know that the current population is 13,000 and that the growth rate is 11%

So

p = 13,000\\r = 0.11

The equation that models this scenario is:

P = 13,000(1 + 0.11) ^ t

P = 13,000(1.11) ^ t

4 0
3 years ago
Daniel has lunch at a restaurant and the cost of his meal is $49.00, because of the service, he wants to leave a 5% tip. what is
yuradex [85]
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8 0
3 years ago
I need help with these problems, thanks
ira [324]

1.  C

2.  A

3. B

Hope This Helped!

<u><em>(Brainliest will be appreciated)</em></u>

4 0
3 years ago
Read 2 more answers
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