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Triss [41]
3 years ago
15

Write the equation for the inverse of y = cos 2x

Mathematics
1 answer:
AlladinOne [14]3 years ago
3 0

Answer:

Inverse = (arcos x) / 2.

Step-by-step explanation:

y = cos 2x

2x= arcos y

x = (arcos y) / 2.

Inverse = (arcos x) / 2.

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(2y + 9)(3y - 1) = 5y2 + 25y - 9
Vikki [24]

Answer:

y1= 0, y2= 5/3

Step-by-step explanation:

Remove the parentheses and multiply

then cancel the equal terms

collect the lie terms

move the variables to one side

divide both sides by two

split into possible cases

then solve the equation to get

y= 0 and

y= 5/3

7 0
2 years ago
Name
kaheart [24]

Answer:

Slope is -2/7

Step-by-step explanation:

Slope formula is y₂-y₁/x₂-x₁

So...

(x₁,y₁) and (x₂,x₂) →(2,2) and (-5,4)

4-2= 2

-5-2= -7

2/-7

3 0
3 years ago
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3) Which point is located at (6, 3)?<br><br>A <br>B <br>C <br>D​
maks197457 [2]

Answer:

C

Step-by-step explanation:

because its at 6,3

8 0
2 years ago
Read 2 more answers
A Gallup poll of 1236 adults showed that​ 12% of the respondents believe that it is bad luck to walk under a ladder. Consider th
SOVA2 [1]

Answer:

c

Step-by-step explanation:

8 0
3 years ago
3/4=j-1/2 solve the equation check your solution
DIA [1.3K]
3/4= j-1/2
first to add 1/2 to both sides to solve for j 
3/4 + 1/2= j
second you find a common denominator in order to add 3/4 and 1/2, the common denominator would be 4, you would have to change 3/4 at all because the denominator is already 4 but in order to make the denominator of 1/2, 4 you would have to multiply both the denominator and numerator by 2 so 
3/4 + 2/4 = 5/4
so 5/4 =j

to check your answer you plug 5/4 in for j 
3/4 = 5/4 -1/2
again you need to find a common denominator between 5/4 and 1/2 which again would be 4, and again you wouldn't change 5/4 but you would multiply both the numerator and the denominator of 1/2 so 
3/4= 5/4-2/4
5-2= 3 and you would keep the 4 so 
5/4 - 2/4 = 3/4

so j =  5/4
5 0
3 years ago
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