Mathematics, 27.01.2020 08:31 ajime

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can someone me with a step by step of this problem ? i'll seriously appreciate it, and you so so so much in
don't answer if you're ! i need actual , don't just take my points. (: you!

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Answer from: elnkun98owvaa6

It would help you with starting by drawing a picture first and labeling it with the info you've been given in the problem. After you draw your picture, you look at what you need to find which would've been X in my picture.

So, looking at angle we were given, the other known information we have is the distance of 6.5ft from the wall to the bottom of the ladder which is the ground.

The ground is adjacent to the angle of 74°.
The side X is opposite of the angle of 74°.

Which means you need to choose the trig ratio that has adjacent and opposite in it.
A way to remember is (SOHCAOHTOA)

Sin = Opposite / Hypotenuse
Cos = Adjacent / Hypotenuse
Tan = Opposite / Adjacent

The rhyme we use is "Some Old Hippy Caught Another Old Hippy Tripping On Acid"

Tan would be the trig ratio you need to use to find the answer to your problem so you'd set it up...
Tangent of 74 = X / 6.5
Then you'd multiply both sides by 6.5 and get...

6.5 ・Tan(74) = X

We use use graphing calculators for these. I'm not sure if you do too but if so...
Make sure you go to [Mode] on your calculator and change it from Radian to Degree.
Then simply type in the equation...
6.5 ・ Tan(74) =
And you'll get
22.68819388

Then round to whatever place you're supposed to and you're done.
(zoom / zoom out if needed to see question. (: ) can someone me with a step by step of this probl

(zoom / zoom out if needed to see question. (: ) can someone me with a step by step of this probl

Answer from: Quest

answer: a) (0,0), (1,1), (2,8), and (3,27).

step-by-step explanation:

0^3=0

1^3=1

2^3=8

3^3=27

in effect, the exponential equation for this would me y=3^x. each x-coordinate cubed is giving the y coordinate, so a is your answer : )

Pls i’m which set of ordered pairs could be generated by an exponential function a. (0,0), (1,,8),

Answer from: Quest

the value of v.w= -12.

step-by-step explanation:

we are given three vector r,v and w as:

r = < 5, -5, -2> ; v = < 2, -8, -8> ; w = < -2, 6, -5>

we know that r,v and w could also be represented as:

r=5i-5j-2k

v=2i-8j-8k

and w= -2i+6j-5k

where i,j and k are the unit vectors of x,y and z-axis respectively.

also we know that it has the following property:

i.i=1 ; j.j=1; k.k=1

and i.=j.i=i.k=k.i=j.k=k.j=0

i.e. when we multiply two vectors or we find it's dot product we need to only multiply the components of x coordinates with each other; y with each other and z with each other.

hence, v.w= (2i-8j- -2i+6j-5k)

= 2×(-2)+(-8)×(6)+(-8)×(-5)

= -4-48+40

= -12

hence, v.w= -12

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