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TiliK225 [7]
3 years ago
5

Which is equivalent to log1/2462

Mathematics
1 answer:
egoroff_w [7]3 years ago
7 0

Answer:

B

Step-by-step explanation:

Given the expression:

log_{1/2} 462

we want to find an equivalent expression.

Change of base formula:

log_{a} b = \frac{log b}{log a}

where log means logarithm with base 10, also known as common logarithm.

Then, the expression of the problem is transformed into:

log_{1/2} 462 = \frac{log 462}{log (1/2)}

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Solve the system <br> 5x+3y=-9 &amp;- 2x+y=8
lianna [129]
5x+3y=-9
-2x+y=8

The first step is the trickery (and quite frankly, hardest to explain) part. You need to multiply one equation by a number that will create one variable to be the negative version of the other...(Confusing, right? Don't worry, I'll show you)

We are going to solve for X first.

We will multiply the second equation by -3
5x+3y=-9
-3(-2x+y)=(-3)8

Now simplify:
5x+3y= -9
6x-3y= -24

Now combine the two equations (add them together)
11x= -33
Divide by 11
X=-3

Now plug X in to one of the first equations:
5(-3)+3y= -9
-15+3y =-9
3Y= 6
Y= 2


So your final answer is:
x= -3
Y= 2

Hope this helps!
3 0
3 years ago
Read 2 more answers
At 6:00 AM the temperature was 2 degrees Celsius. At 11:00 AMthe temperature was -11 degrees Celsius. By how many degrees Celsiu
bonufazy [111]

Answer:

-9

Step-by-step explanation:

Its dropping down from 2 to 0 so that is negative then the -11 so it would be -9.

6 0
2 years ago
10| x – 4| - 3 &gt; 47​
Andrew [12]

Answer:

x < -1    or    x > 9

Step-by-step explanation:

10|x-4|-3>47

Add 3 to both sides.

10|x-4|-3+3>47+3

Simplify.

10|x-4|>50

Divide both sides by 10.

\frac{10|x-4|}{10} >\frac{50}{10}

Simplify.

|x-4|>5

Apply absolute value rule: If |u|>a,a>0 then u < -a or u>a

x-4 or x-4 >5

x-4

Add 4 to both sides.

x-4+4

Simplify.

x

x-4>5

Add 4 to both sides.

x-4+4>5+4

Simplify.

x>9

Combine the intervals.

x or x>9

8 0
3 years ago
Need help asap!!!!!!​
Mrac [35]

Answer: x=4

Step-by-step explanation: first you should write it out like it is telling you. put a line and EG is the line and f is in the middle of the two looks kinda like this  E         F          G but they are on a line EG= 25 that means the whole thing equals 25. EF= 2x-6 and FG= 4x+7. when you plug that in it should look like this 25=2x-6+4x+7 then solve.

3 0
3 years ago
Round 543,982 to the nearest thousand.
Ratling [72]

Answer:

544,000

Step-by-step explanation:

6 0
3 years ago
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