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3 years ago

Solve sin x + 2 sin x cos X = for 0°

Mathematics

1 answer:

solniwko [45]3 years ago

3 0

Answer:

Step-by-step explanation:

hello :

sin x + 2 sin x cosx = 0 equivalent to : sinx(1+2cosx) =0

sinx=0 means : general solution is : x= kπ....k in Z

1+2cosx=0 means : cosx= -1/2 general solution is : x= ±π/6+kπ...k in Z

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15.18. Find the area of the region bounded by

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Answer:

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Step-by-step explanation:

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3 years ago

Find the midpoint of AB for: A(7,0)|and B(0,3)

liberstina [14]

Answer:

$\boxed {\boxed {\sf (\frac {7}{2}, \frac{3}{2}) \ or \ (3,5, 1.5) }}$

Step-by-step explanation:

The midpoint is essentially a point with the average of the 2 x-coordinates and the 2 y-coordinates.

The formula is:

$(\frac {x_1+x_2}{2}, \frac{y_1+y_2}{2})$

We are given two points: A (7,0) and B (0, 3). Remember points are written as (x, y).

Therefore,

$x_1= 7 \\y_1=0 \\x_2=0 \\x_2=3$

Substitute the values into the formula.

$(\frac {7+0}{2}, \frac{0+3}{2})$

Solve the numerators first.

$(\frac {7}{2}, \frac{3}{2})$

The midpoint can be left like this because the fractions are reduced, but it can be written as decimals too.

$(3.5, 1.5)$

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3 years ago

A football field is 160 feet wide and 360 feet in length. What is the distance around the field?

charle [14.2K]

Answer: 160 + 160 = 320

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3 years ago

Multiply.<br><br> 3 2/3⋅3/4

Vlada [557]

Answer:

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Step-by-step explanation:

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3 years ago

First to answer gets BRAINLEST<br><br> Which graphs show continuous data select all correct answers

solniwko [45]

<h2>Greetings</h2>

Answer:

Graph number 1 and 3

Step-by-step explanation:

This is because continuous data is shown by drawing a line that means the pencil doesn't have to be taken off the page. Seeing as these two graphs are the only two with lines drawn, it means they are graph number 1 and 3.

<h2>Hope this helps!</h2>

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3 years ago