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arlik [135]
3 years ago
8

42 points giv away PLZ ANSWER RN (5/8+3/4) divided by (-2/3 - 5/6)

Mathematics
2 answers:
Triss [41]3 years ago
8 0

Answer:

when you divide you get -11/12

if you have a calculator you could add the 5/8 and 3/4

then add the -2/3 and the -5/6

then divide the first answer by the second answer

vlabodo [156]3 years ago
5 0

Answer:

\frac{( \frac{5}{8}  +  \frac{3}{4}) }{(  - \frac{ 2}{3}  -  \frac{5}{6} )}  \\  \\  \\  \frac{( \frac{5}{8}  +  \frac{6}{8}) }{( -  \frac{4}{6} -  \frac{5}{6} ) }  \\  \\  \\  \frac{ (\frac{5 + 6}{8}) }{( \frac{ - 4 - 5}{6} )}  =  \frac{( \frac{11}{8} )}{(  - \frac{9}{6} )}  \\  \\  \\  \frac{11}{8}  \div ( -  \frac{9}{6} ) \\  \\  \\  \frac{11}{8}  \times ( -  \frac{6}{9} ) \\  \\  \\  \frac{11}{8}  \times ( -  \frac{2}{3} ) \\  \\  \\   \frac{11}{4}  \times ( -  \frac{1}{3} ) \\  \\  \\  =  -  \frac{11}{12}  \\  \\  \\  =  - 0.91666

I hope I helped you^_^

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First find f′ and then find f. f′′(x)=3x^3+6x^2−x+2, f′(1)=9, f(1)=−7. <br> f′(x)= <br> f(x)=
Vadim26 [7]
I haven't learned antiderivitives yet but I can try to logic it

<span>First find f′ and then find f. f′′(x)=3x^3+6x^2−x+2, f′(1)=9, f(1)=−7.

we reverse chain rule

3x^3, we know that it was a 4th degree thing, and the coefient is 3, so
4*what=3?, answer is 3/4
3/4x^4

6x^2
we know it was x^3, and the coefient is now 6 so
3*what=6? what=2
2x^3

-1x, the power was 2 and coefient is now -1, so
2 times what=-1?, -1/2
-1/2x^2

2, that is from 2x

so
</span>
<span>3/4x^4+2x^3-1/2x^2+2x=f'(x)
test x=1
(3/4)(1)+2(1)-(1/2)(1)+2(1)=
3/4+2-2/4+2=
4 and 1/4 we need to get it to 9
4 and 1/4 +what=9
answer is 4 and 3/4
so we add that to the end since it will become 0 from derivitive

</span>
<span>f'(x)=3/4x^4+2x^3-1/2x^2+2x+4 and 3/4

now reverse drivitive again

3/4x^4
exponent is 5 and coefient is 3/4
5 times what=3/4? answer is 3/20
3/20x^5

2x^3
exponent should be 4 and coefient is 2
4 times what=2? answer is 1/2
1/2x^4

-1/2x^2
exponent should be 3 and coefient is -1/2
3 times what=-1/2? answer is -1/6
-1/6x^3

2x
exponent should be 2 and coefient is 2
2 times what=2? answer is 1
1x^2

4 and 3/4 turns to (4 and 3/4)x



</span>
<span>f(x)=3/20x^5+1/2x^4-1/6x^3+x^2+(4 and 3/4)x
try evaluating it for x=1
f(1)=(3/20)+(10/20)-(10/50)+1+(19/4)
f(1)=6 and 7/30
what do we add to get -7
-13 and 7/30
</span>
<span><span>f(x)=3/20x^5+1/2x^4-1/6x^3+x^2+(4 and 3/4)x-13 and 7/30

</span>


</span>ANSWER
<span>f'(x)=3/4x^4+2x^3-1/2x^2+2x+19/4
</span><span>f(x)=3/20x^5+1/2x^4-1/6x^3+x^2+19/4x-187/30</span>
4 0
3 years ago
I really need help in math! Any is appreciated!
Usimov [2.4K]
The answer should be 7/5
5 0
3 years ago
Simplify the expression 3(x + 3) - 2x
den301095 [7]

Answer:

the answer is x + 9

Step-by-step explanation:

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you need to add like terms together

3x+2x=5x

and then 9 is by itself

so x+ 9 is the answer

hope this helps :-)

3 0
4 years ago
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omeli [17]
The answer is A. When 0.7 is put into fraction form it turns into 7/10. Then change the denominator of 3/5 to 10 which makes it 6/10. 7/10 is higher than 6/10 so the answer is A.
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G/10
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