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lukranit [14]
3 years ago
8

Help me in algebra please

Mathematics
1 answer:
Anit [1.1K]3 years ago
3 0
First, u do -9+8x-4+8
Then, U simplify. The answer is 8x-5
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Hey I’ve got the answer for the first question but I’m stuck on this one 5^-3 X 2^-1
Phantasy [73]

Answer:

  • See below

Step-by-step explanation:

a)

  • 6ˣ = 1/216
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  • 6ˣ = 6⁻³
  • x = -3

b)

  • 5⁻³ × 2⁻¹ =
  • 1/5³ × 1/2 =
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8 0
3 years ago
Help pls 25 points don’t answer if you do not know
-Dominant- [34]

Answer:

i believe it’s graph A

Step-by-step explanation:

8 0
3 years ago
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How many times does X squared minus 4X -12 cross the X axis
kolbaska11 [484]

We can solve this problem using discriminant.

x^2-4x-12's discriminant is

(-4)^2-4*-12=16+48 which is clearly larger than 0

This means that it crosses over the axes 2 times.

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the discriminant is b^2-4ac.

If its positive it has 2 crosses with x axis, if negative then 0 crosses, if 0 then 1 cross.

Hope this helped at least a little bit :D

4 0
3 years ago
23.5584557678 rounded to the nearest hundredth
hram777 [196]
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hope it helps</span>
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What is 80/6 as a simplified fraction
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Here is the answer for math problem

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