How do I solve for x? log (x-2) = -1 + log (x+1)

Answers

Answer 1
Answer: For this question you can say:
log(x-2) - log(x+1) = -1 
and you should know that log(x-2) minus log(x+1) is equal to:
log((x-2)/(x+1)) 
so now you have:
log((x-2)/(x+1)) = -1 
now you can say:
(x-2)/(x+1) = 10^ -1 or (x-2)/(x+1) = 1/10 
now you can say:
10(x-2) = x+1 
10x -20 = x +1 
10x - x = 20+1 
9x = 21 
x = 21/9 
x = 7/3 :)))
I hope this is helpful
have a nice day

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T/2+t/3=5 solve for t

Find -x when x = 80 /49 what is the answer and explain please

Answers

All you do is add a negative sign to 80/49 and then simplifiy

Can you solve (4x-3)/(x+2)+(15)/(x-3)

Answers

Please see the pic, I'd solved in it.
(4x-3)/(x+2)(15)/(x-3) = 0
1st step: We need to have a common denominator.
So we do this:
((4x-3)*(x-3))/((x+2)*(x-3))((15)*(x+2))/((x-3)*(x+2)) = 0
2nd step: Distribute them
(4x^(2)-3x-12x+9)/((x-3)(x+2))(15x+30)/((x+2)(x-3)) = 0
3rd step: Do the rest of the equation!
We can put it on one fraction, its fine.
(4x^2-15x+9+15x+30)/((x+2)(x-3)) = 0
(4x^2+39)/((x+2)(x-3)) = 0 (-15 and 15 cancels out)
4th step: take the denominator to the other side
4x²+39 = 0 (anything × 0 = 0)
5th step: Take 39 to the other side
4x² = -39
6th step: Divide by 4 on both sides
(4x^2)/(4)-(39)/(4)
(4 and 4 cancels out)
x² = -(39)/(4)
7th step: Take the square root to keep x alone
x = -\sqrt(39)/(4)
It can also be written as:
x = -( √(39) )/( √(4) )
Final answer:
x = -( √(39) )/(2)

What is the value of log 43? Use the calculator. Round your answer to the nearest tenth.

Answers

2.0 = Value of Log(43)

Answer:

It’s C on Edge which is 1.6

Step-by-step explanation:

I got it right

7 times the difference of a number and 3.2 is 8.4.

Answers

because subtraction comes before multiplication on the order of operations we have to put in parenthasis in this problem.

(x-3.2) is what we have so far.

then we multiply it by 7

so 7(x-3.2)=8.4



The following parallelogram is not drawn to scale.Find the unknown angle:
142⁰
a
za =

Answers

The twο adjacent angles in the parallelοgram are 142 degrees and 38 degrees, and the οppοsite angles are alsο equal tο 142 degrees and 38 degrees.

What are the supplementary angles?

Supplementary angles are thοse angles that sum up tο 180 degrees. Fοr example, angle 130° and angle 50° are supplementary angles because the sum οf 130° and 50° is equal tο 180°.

In a parallelοgram, οppοsite angles are equal and supplementary, which means they add up tο 180 degrees. Therefοre, the οppοsite angle tο the given angle οf 142 degrees is alsο supplementary tο it and equal tο0

180 - 142 = 38 degrees.

Since οppοsite sides οf a parallelοgram are parallel and cοngruent, the adjacent angles are alsο cοngruent. Therefοre, the οther angle adjacent tο the given angle οf 142 degrees is alsο equal tο 142 degrees.

Hence, the twο adjacent angles in the parallelοgram are 142 degrees and 38 degrees, and the οppοsite angles are alsο equal tο 142 degrees and 38 degrees.

To learn more about supplementary angles visit:

brainly.com/question/12919120

#SPJ1

Complete question:

What can multiply to get -36 and add to get -40

Answers

4*-9+-4= -40

-36-4= -40

-40=-40

I hope that's help:)