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saw5 [17]
3 years ago
9

Simplify sinø + cosø × cotø

Mathematics
1 answer:
insens350 [35]3 years ago
3 0
That would be 
                        cos x
sin x + cos x * --------
                        sin x
               
                        sin x
Mult sin x by ----------
                        sin x

to obtain 

(sin x)^2
------------
   sin x

and then add

(cos x)^2
-------------
   sin x

with the outcome being 

(sin x)^2 + (cos x)^2        1
--------------------------- = --------- = cos x (answer)
              sin x                sin x
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What is an equation of a parabola with a vertex at the origin and directrix x=4.75?
patriot [66]
An equation for the parabola would be y²=-19x.

Since we have x=4.75 for the directrix, this tells us that the parabola's axis of symmetry runs parallel to the x-axis.  This means we will use the standard form

(y-k)²=4p(x-h), where (h, k) is the vertex, (h+p, k) is the focus and x=h-p is the directrix.

Beginning with the directrix:

x=h-p=4.75
h-p=4.75

Since the vertex is at (0, 0), this means h=0 and k=0:

0-p=4.75
-p=4.75
p=-4.75

Substituting this into the standard form as well as our values for h and k we have:
(y-0)²=4(-4.75)(x-0)
y²=-19x
4 0
3 years ago
Can I get an answer please ​
Verdich [7]

Answer: 1, 4, -7

Step-by-step explanation:

Coefficients are numbers that are in front of a variable. Let's first determine the terms that have variables in them.

z, 4z², -7a

Since these all have variables in the terms, we know the coefficients are 1, 4, -7.

8 0
3 years ago
Write down the equation of a line that is parallel to the line with equation y=7-4X
Leona [35]

Answer:

y=8-4x

Step-by-step explanation:

4 0
2 years ago
Please help i’ll mark brainliest!!!!!!
dangina [55]

Answer:

Width = 2x²

Length = 10

Step-by-step explanation:

The greatest common monomial factor of 14x² and 6x² is 2x² so the width is 2x².

Width = 2x²

Length = (14x² ÷ 2x²) + (6x² ÷ 2x²)

            = 7 + 3

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6 0
3 years ago
How many distinct rearrangements of the letters in "tweedledee" are there?
podryga [215]

Answer:

weed ,led ,we, tee , tweedle

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3 years ago
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