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DIA [1.3K]
3 years ago
11

Logbase3 (x+2)= log base3 (2x^2-1) steps 1 through 6

Mathematics
1 answer:
kari74 [83]3 years ago
5 0

log_3(x+2)=log_3(2x^2-1)\\3^{log_3(x+2)}=3^{log_3(2x^2-1)}\\x+2=2x^2-1\\-x -2       -x -2\\0=2x^2-x-3\\2*-3=-6\\Test factors -3 and 2:\\-3*2=-6, -3+2=-1\\(x-3)(x+2)=0\\Use slide and divide with 2:\\(x-3/2)(x+2/2)=0\\=>\\(2x-3)(x+1)=0\\Set both equal to 0:\\x+1=0\\x=-1\\2x-3=0\\2x=3\\/2   /2\\x=3/2\\

Answer:

x=-1, 3/2

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The square root of 27 lies between which two whole numbers
Agata [3.3K]

Answer:

5 and 6

Step-by-step explanation:

The square root of 27 is 5.19615242271  , which is more than 5 but less then 6, therefore is between 5 and 6.

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<em>Hope this helped (: Can you please mark as brainliest?</em>

7 0
3 years ago
The following dot plot represents a random sample of elementary students and the number of children that live in their home.
NISA [10]

1.

None of the households in the United States contain five children.

2.

The majority of the households in the United States, with at least one child, contain less than three children.

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~Mia for short~

7 0
3 years ago
1. Supposed that a population consists of the values 1.2.3.4.5.6.7.8, 9, and 10. Construct
irina [24]

Answer:

B

Step-by-step explanation:

Just pick B bro it isn't even that hard lol

8 0
3 years ago
Which term is the perfect square of 3x^4
iragen [17]
The answer is 9x^8 
Hope it helped!!
7 0
3 years ago
Read 2 more answers
Given that f(x) = x2 + 10x + 21 and g(x) = x + 7, find (f•g)(x) and express
sammy [17]

Answer:

<h2>(f.g)x =  {x}^{2}  + 24x + 140</h2>

Step-by-step explanation:

given \\ f(x) = x ^{2}  + 10x + 21 \: and \: g(x) = x + 7

as \: we \: know \: (f.g)x \: is \: same \: as

f(g(x))

so \:

f(x + 7) = ( x + 7) ^{2}  + 10(x + 7) + 21

f(x + 7) =  {x}^{2}  + 14x + 49 + 10x + 70 + 21

f(x + 7) = x^{2}  + 24x + 140

therefore

(f.g)x =  {x}^{2}  + 24x + 140

3 0
3 years ago
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