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skelet666 [1.2K]
3 years ago
12

Please someone help I forgot everything at this moment!!! It’s easy just forgot :/

Mathematics
1 answer:
mr Goodwill [35]3 years ago
3 0
16. 200 + 3
17. 30 + 4 + 0.1 + 0.02 + 0.007
18. 200 + 70 + 6 + 0.1 + 0.03
19. 30,000,000 + 4,000,000 + 100,000 + 20,000 + 3,000 + 6

(correct me if i’m wrong)
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²log(x+2)+²log(x-2)≤²log5
AnnyKZ [126]
I believe you meant to write 
log_{2}(x+2) + log_{2}(x-2)  \leq  log_{2}(5) ?
If that's the case I'll solve the one I provided but I'll drop the base 2 to type it faster but you need to put it always!
Remember: log a + log b = log (a*b)
So log (x+2) + log (x-2) = log [(x+2)*(x-2)] = log (x^2 - 4)
Now back to the inequality:
log (x^2 - 4) <span>≤ log 5
Raise both sides as powers of 2 ( Since it's the base of your log)
Now,
x^2 - 4 </span><span>≤ 5
Add 4 both sides:
x^2 </span>≤ 9
Square root both sides
x ≤ +3 or x ≤ -3 
Reject the -3 solution as it makes both (x + 2) and (x - 2) negative and a log can never have a negative value inside its brackets. 
So x <span>≤ 3 But can never be less than 2 as well for the same previous reason.
Hope that helped.</span>
6 0
4 years ago
PLEASE help. I will mark as brainliest
finlep [7]

Answer:

C 35

Step-by-step explanation:

Brainliest

4 0
3 years ago
Read 2 more answers
Equation of a line that passes through (2,4) and has a slope of 3. Point slope method
olchik [2.2K]
Y-y1=m(x-x1)

Thru that, you get:

y-4 = 3(x-2)
3 0
3 years ago
How can you solve this ​
natima [27]

Answer:

the answer is 10

Step-by-step explanation:

2x^2-y turns into

2*3^2-8  

   \ /

2*9-8

\ /

18-8

 \ /

 10

hope this helped if it did reply and do forget to rate thank you

5 0
3 years ago
13.<br> Find<br> the<br> volume of a cube with the given !<br> Side:<br> 4cm
avanturin [10]

Answer: the answer is 64 cubed witch is just a a little 3 next to 64.

Step-by-step explanation: the Equation is 4x4x4x is 64cubed do not forget the cubed you will get it wrong if you forge.

3 0
3 years ago
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