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4 years ago

Simplify the expression sin 2x+ sin x + cos2x - 1.

Mathematics

1 answer:

dezoksy [38]4 years ago

7 0

Answer:

Sin(2x)+sin(x)+cos(2x)-1

Step-by-step explanation:

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A railway car is shaped like a rectangular prism with a length of 18 meters, a width of 3 meters, and a height of 4 meters.

larisa86 [58]

The volume of railway car is 216 cubic meters

Solution:

Given that, Railway car is shaped like a rectangular prism with a length of 18 meters, a width of 3 meters and a height of 4 meters

To find: volume of railway car

The volume of rectangular prism is given as:

$v = l \times w \times h$

Where,

"l" is the length and "w" is the width and "h" is the height of prism

From given question,

length = 18 meters

width = 3 meters

height = 4 meters

Substituting the values, we get

$v = 18 \times 3 \times 4 = 216$

Thus volume of railway car is 216 cubic meters

3 0

3 years ago

How to find the ratio side of a rectangular

mr_godi [17]

Answer:

First you Set up a ratio where your large side is on top of the fraction and the smaller side is on the bottom of the fraction. Then you Divide the ratio, then set the bottom number to one.

4 0

4 years ago

2/5- -3/4 what would be the answer?

Ipatiy [6.2K]

For this case we must simplify the following expression:

$\frac {2} {5} - (- \frac {3} {4})$

By definition of the law of multiplication signs we have to:

$- * - = +$

So, rewriting the expression we have:

$\frac {2} {5} + \frac {3} {4} =\\\frac {4 * 2 + 5 * 3} {5 * 4} =\\\frac {8 + 15} {20} =\\\frac {23} {20} = 1.15$

Thus, the answer in decimal form is 1.15.

Answer:

$\frac {23} {20} = 1.15$

5 0

3 years ago

Determine the shaded region?

MA_775_DIABLO [31]

Answer:

where is the picture?

Step-by-step explanation:

3 0

4 years ago

In the number 344,586, how many times greater is the value represented by the

hichkok12 [17]

I think it is c 1,000

7 0

3 years ago

Read 2 more answers