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enyata [817]
3 years ago
11

PLEEEEEEEAAAAAAASSSSSSSSSSEEEEEEEEEEE help me!!!!!!!!!!

Mathematics
1 answer:
defon3 years ago
7 0

Answer:

\boxed{\sf \ \ \ \dfrac{18}{(x-7)(x+12)(x+30)} \ \ \ }

Step-by-step explanation:

hello,

first of all we will study the quadratic expressions

we can write that, (the different answers provide good clues :-) )

x^2+5x-84=(x-7)(x+12)

and

x^2+23x-210=(x-7)(x+30)

so first of all as we cannot divide by 0 we need to take x different from 7, -12 and -30 and then we can write

\dfrac{1}{x^2+5x-48}-\dfrac{1}{x^2+23x-210}=\dfrac{1}{(x-7)(x+12)}-\dfrac{1}{(x-7)(x+30)}\\\\=\dfrac{(x+30) -(x+12)}{(x-7)(x+12)(x+30)}=\dfrac{x+30-x-12}{(x-7)(x+12)(x+30)}\\\\=\dfrac{18}{(x-7)(x+12)(x+30)}

hope this helps

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I NEED HELP BAD I WILL GIVE 20 POINTS IF YOU ANSWER ALL THEM
natita [175]

<span>1.     </span><span>Why was Robert E. Lee convinced that he should attack in the Northern territory again in June of 1863? </span>

<span>He was confident that he would win because he just became victorious against the Army of the Potomac in Chancellorville. His belief and his desire to be recognized by the Confederacy by the French and British, convinced him that he should attack the Northern territory for the second time.  </span>

<span>
2. Which side won that 1st day of the battle on July 1st, 1863? Union or Confederate
– The Confederate won on the 1st day of the battle.


3. How did the Battle of Gettysburg start - did they plan on meeting up at Gettysburg and have a battle there?
A confederate soldier discovered that Union cavalries were in town. With this intel, the confederate were able to initiate attacks against them.  


4. Who ended up losing this entire battle at Gettysburg, General Meade or General Lee?
– General Lee ended up losing the entire battle at Gettysburg.


5. During the 2nd day of the Battle of Gettysburg, on July 2nd, how did the Union have the advantage over the Confederacy?
– The Union armies were able to secure strong positions for themselves from Culp’s Hill to Cemetery Ridge.


6. Why did General Lee order General Pickett to charge across a mile long open field? 
– He thought that the Confederates won on the 2nd day of Battle thus he ordered Gen. Picket to charge across a mile long open field to attack dug-in Union soldiers in their positions.


7. Did Pickett and his men successfully take over Cemetery Ridge from the Union during their charge?
– No. They were attacked by the Union armies in all sides. They lost 2/3 of their men.


8. True or False It was General Pickett’s fault that his charge didn’t work. 
– False. General Lee ordered the charge despite protest from Longstreet. Gen. Pickett was merely following orders.


9. About how many casualties did the Union and Confederacy both have during the 3 day battle at Gettysburg? Union casualties – 23,000 ; Confederate casualties – 28,000


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7 0
3 years ago
1,534 divided by 26 equals ????
Montano1993 [528]

Answer:

59

Step-by-step explanation:

1534 / 26 = 59

5 0
3 years ago
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What are positivly charged particles in an atoms nucleus called
gladu [14]

Answer:

proton is the word you're looking for.

7 0
3 years ago
a number is divided by 3 and the result is added to 1. the new result is doubled to give the final result 80. whats the number
Gnesinka [82]
78, because you have to do the inverse operation so 80/2= 40 then 40-1= 39 and 39*3 = 78
6 0
4 years ago
$ 65 is marked up to $70.20
olganol [36]
You can work out the difference between the numbers by taking the smaller one away from the larger one:
70.20 - 65 = 5.20

Then you can divide the difference (5.20) by the original number (65) to get how many percent it is of 65 in decimal form:
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Then you can times it by 100, to get the percentage:
0.08 * 100 = 8%

This means there was a 8% price increase in $65 to get to $70.20

Hope this helps! :)
5 0
4 years ago
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