THESE NUTS!!

HA!!! GOTIM!!!!!!!!!!!!!!!!!!!

with these nutz!

yes. 

is casio a brand for calculators?

You stupid.

8=====================D

Not quite sure what you mean, but 9/3 is an improper fraction. 9/3 is the equivalent of 3, though. 

70. 70 comes after 69.

19. 

Not 21.

f**k you

21.  :D

idk lol she just does

cause she feels like it duh faskdljf;ashbv;asj fio;iwe tfahsdfvjlsdfv ljcnvk weoptfh  

idk thats really hard.......... 27?

silly penguin

shank

Line k intersected on the left side has an equasion; (2x+8)

Line k intersected on the right side has an equasion; (5x-10)

Line L intersected on the left side has an equasion; (3x+42)

Line L intersected on the right side has an equasion;(x+34)

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I'm not sure, but I think you are tyring to find some angles, here

We have that, for line K  ....   [ 2x + 8 ] +  [ 5x - 10]  = 180    

Simplifying, we have ....7x - 2 = 180     add 2 to both sides

7x = 182    divide both sides by 7

x = 26  

So.....the angle on the left side of line K  = 2(26) + 8 = 52 + 8  = 60

And....the angle on the right side of line K = 5(26) - 10  = 130 - 10  = 120

The angle on the right side of line L  actually must be  3x + 42  = 3(26) + 42 = 78 + 42  = 120.....which makes sense, because parallel lines intersected by a transversal will have corresonding angles equal

As a check, the angle on the left side of line L should = 60....let's see... (26) + 34 = 60.....yep  !!!

And there you are.....

I used the < sign in my reply above.  I should, of course, have used the ≤ sign!

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nevermind, the question got revoked, the teacher said there's no way to find the value...

This can be written as 2³<2^{4(7x + 2)} so that we must have 3 < 4(7x + 2)  

or 3 < 28x + 8 or -5 < 28x or -5/28 < x   or -0.1786... < x

see image below:

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Q: cos^-1(-3.48), why is the calculator say invalid argument?

Because -3.48 is way out of range.

cos(x) must be -1 ..... +1, inclusive, so -3.48 is impossible.

cosine can be described the ratio of two sides of

a right-angled triangle, cos = adj/hyp,

and hypotenuse is always the longest side.

This means the ratio |adj/hyp| cannot exceed 1.

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does this make me old

Because the question is asking for what angle is the cosine equal to -3.48.  Since the cosine of any angle must lie between the values of ±1, there is no angle for which the cosine can be -3.48.

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