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Semmy [17]
2 years ago
10

Find f(-3) if f(x)=x^2+2x-1

Mathematics
1 answer:
valkas [14]2 years ago
4 0
Here is the answer with my work !!

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Plz help me step by step explanation would help for work plzzzz And Thank you PLEASE​
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i hope this helps

Step-by-step explanation:

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3 years ago
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In order to tell if a graph is a function it must
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You can use the vertical line test (the blue lines on the drawing) and if the other end or if any part of the line touches the blue line, then it isn’t a function.

5 0
3 years ago
What will $110,000 grow to be in 9 years if it is invested today at 11%?
timama [110]

Answer:

218,900

Step-by-step explanation:

6 0
2 years ago
The sphere at the right fits snugly inside a cube with 8​-in. edges. What is the approximate volume of the space between the sph
boyakko [2]

Answer:the answer is

Find the vol of the sphere:

radius of the sphere = 3 in

V = %284%2F3%29%2Api%2A3%5E3

V = 97.858

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5 0
4 years ago
If f(x) = -(1/x^3) and x takes on successive values from -10 to 0.1 ,
prohojiy [21]
Alright, this one is a little interesting... Let's perform some tests to figure out what is happening:
f(-10) = -(1/(-10)^3) = -(1/-1000) = 1/1000  (positive)
f(-5) = -(1/(-5)^3) = -(1/-125) = 1/125 (positive, bigger than the last one)
f(-1) = -(1/(-1)^3) = -(1/-1) = 1 (positive, bigger than the last one)
f(-0.1) = -(1/(-0.1)^3) = -(1/-0.001) = 1/0.001 = 1000 (positive, bigger than the last one)
f(0) = -(1/0^3) = undefined!
f(0.1) = -(1/(0.1)^3) = -(1/0.001) = -1/0.001 = -1000 (negative)
f(1) = -(1/1^3) = -(1/1) = -1 (negative, but bigger than last one)

It's a little confusing with the undefined part at x = 0. What I can say is this, it is increasing from -10 up to 0, something weird happens at 0 and it resets, and starts increasing from 0 up to 0.1. 

I guess A would be the best answer?

3 0
3 years ago
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