3 years ago

5th grade . pls help.

Mathematics

1 answer:

fiasKO [112]3 years ago

8 0

4/16 and 1/4 happy to help :)

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Find the limit. use l'hospital's rule if appropriate. if there is a more elementary method, consider using it. lim x→1 1 − x + l

AfilCa [17]

$\displaystyle\lim_{x\to1}\frac{1-x+\ln x}{1+\cos5\pi x}$

Evaluating the limand directly at $x=1$ gives an indeterminate form $\dfrac00$ . Apply L'Hospital's rule once and we get

$\displaystyle\lim_{x\to1}\frac{-1+\frac1x}{-5\pi\sin5\pi x}$

Again, plugging in $x=1$ returns $\dfrac00$ . Apply the rule once more:

$\displaystyle\lim_{x\to1}\frac{-\frac1{x^2}}{-25\pi^2\cos5\pi x}=\frac1{25\pi^2}\lim_{x\to1}\frac1{x^2\cos5\pi x}$

Now, in the denominator, when $x=1$ we get $x^2\cos5\pi x=-1$ , so the limit is $-\dfrac1{25\pi^2}$ .

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4 years ago

-2x^4 +50x^2+0x-3/x-5

Gemiola [76]

1) "x2" was replaced by "x^2". 1 more similar replacement(s).
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4 years ago

If the artist wanted to add a smaller cube with an edge length of 2/3to the sculpture, what size would the cube be?

Westkost [7]

Answer:

Step-by-step explanation:

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4 years ago

Kyra observed that 85% of the students at a library liked reading mystery stories. If 30 students at the library did not like re

boyakko [2]

First calculate that numeric value. It cannot be done immediately without calculations.

if 85% of studends liked mystery that means that 100% - 85% = 15% didnt like.

Those 15% are 30 that were given in text. Now we can calculate this using proportion:

15% 30 students
85% x students

we use cross multiplication:
15*x = 30*85
x = 30*85/15
x = 170

Answer is 170

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I hope this helps you

-(4.2+1/2) ÷ (-)(2.3+2/3)

-9/2 ÷ - 8/3

9/2× 3/8

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4 years ago