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3 years ago

The expression sin x (cos x cot x - sin x) simplifies to?

Mathematics

2 answers:

nikdorinn [45]3 years ago

8 0

◆ Trigonometric Identities ◆

Hey !!

Check the attachment.
Hope it helps you :)

liraira [26]3 years ago

6 0

This is the correct answer. I just got it wrong on my quiz but this was the right option. cos(2x)

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Danny is planting an onion garden. The table shows the size of Danny's garden (in square feet), x, and the number of onions he c

il63 [147K]

The unit rate is B) 4

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3 years ago

Read 2 more answers

PLEASE HELPP ASAPPPP

Doss [256]

Answer:

do yorself math is simple subject

6 0

2 years ago

Show all work to write the equations of the lines, representing the following conditions, in the form y = mx + b, where m is the

natima [27]

4x - 3y - 7 = 0
-3y = -4x + 7
y = 4/3x - 7/3....slope here is 4/3

A. a parallel line will have the same slope

y = mx + b
slope(m) = 4/3
(-2,1)...x = -2 and y = 1
sub and find b, the y int
1 = 4/3(-2) + b
1 = -8/3 + b
1 + 8/3 = b
3/3 + 8/3 = b
11/3 = b

so ur parallel line is : y = 4/3x + 11/3

B. A perpendicular line will have a negative reciprocal slope. To get the negative reciprocal of a number, u flip the number and change the sign. So our perpendicular line will need a slope of -3/4

y = mx + b
slope(m) = -3/4
(-2,1)...x = -2 and y = 1
sub and find b, the y int
1 = -3/4(-2) + b
1 = 3/2 + b
1 - 3/2 = b
2/2 - 3/2 = b
-1/2 = b

so ur perpendicular equation is : y = -3/4x - 1/2

8 0

3 years ago

Suppose y varies directly with x, and y= 10 when x=-2. What direct variation equation relates x and y? What is the value of y wh

Musya8 [376]

The statement " y varies directly as x ," means that when x increases,y increases by the same factor. In other words, y and x always have the same ratio:

= k

where k is the constant of variation.
We can also express the relationship between x and y as:

y = kx

where k is the constant of variation.

Since k is constant (the same for every point), we can find k when given any point by dividing the y-coordinate by the x-coordinate. For example, if y varies directly as x , and y = 6 when x = 2 , the constant of variation is k = = 3 . Thus, the equation describing this direct variation is y = 3x .

Example 1: If y varies directly as x , and x = 12 when y = 9 , what is the equation that describes this direct variation?

k = = 
y = x

Example 2: If y varies directly as x , and the constant of variation is k = , what is y when x = 9 ?

y = x = (9) = 15

As previously stated, k is constant for every point; i.e., the ratio between the y -coordinate of a point and the x -coordinate of a point is constant. Thus, given any two points (x 1, y 1) and (x 2, y 2) that satisfy the equation, = k and = k . Consequently, = for any two points that satisfy the equation.

Example 3: If y varies directly as x , and y = 15 when x = 10 , then what is y when x = 6 ?

 = 
 = 
6() = y 
y = 9

3 0

3 years ago

Math help please show work thanks

Rufina [12.5K]

Answer:

The curve surface area(CSA) of a cylinder is 2πrh.

Since diameter=1.5 in.

radius=diameter/2

=1.5/2 in.

=0.75 in.

And, the height of the bottle is 5 in.

Now,

CSA=2πrh

=2π*0.75*5 in^2

=15π/2 or 23.56 in^2

The size of the label needed to cover the entire bottle is 15π/2 or 23.56 in^2.

4 0

3 years ago