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aniked [119]
2 years ago
6

What is sin45°*sin30°*cos60°

Mathematics
1 answer:
NNADVOKAT [17]2 years ago
6 0

Answer:

\frac{\sqrt{2} }{8}

Step-by-step explanation:

Using the exact values of the given trig functions, then

sin45° × sin30° × cos60°

= \frac{\sqrt{2} }{2} × \frac{1}{2} × \frac{1}{2} = \frac{\sqrt{2} }{8}

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Hey need some help with this problem, its trigonometry with right triangles using SohCahToa if you can give me a hand it would b
Firlakuza [10]

For the given triangle, the value of x equals 30.9892 units.

Step-by-step explanation:

Step 1:

In the triangle, the angle is 40°, the opposite side has a length of 26 units, the adjacent side has a length of x units while the hypotenuse is not given.

To determine the value of x, we determine the value of the tan of the given triangle.

To calculate the tan of angle A we divide the opposite side's length by the the adjacent side's length.

tan A = \frac{oppositeside}{adjacent side}.

Step 2:

The length of the opposite side = 26 units.

The length of the adjacent side = x units.

tan A = \frac{oppositeside}{adjacent side}, tan 40 = 0.8390, tan A = \frac{26}{x} .

0.8390 = \frac{26}{x} , x = \frac{26}{0.8390} = 30.9892.

So x measures 30.9892 units.

6 0
3 years ago
Triangle QRS is a right triangle.
olasank [31]

Answer:

5.3

Step-by-step explanation:

a² + b² =² c²               the Pythagorean theorem

RQ² + RS² = QS²            Solve RS

6² + RS² = 8²

RS² = 64 -36

RS² = 28

RS = √28                  28 is slightly > 25   and since  √25 =5

RS = 5.3                    actually 5.2915  to a few more significant digits

5 0
3 years ago
To help solve the trigonometric inequality sec
lukranit [14]

Answer:

Y=-1

Step-by-step explanation:

Well i pulled up to ann old amigos house scowering out for some drugs when i stumbled upon this math question. I used my smarts I learned while hopping walls to get my freedome to give you the answer that you have now obtained. Your welcome - Senior Altuvai

7 0
2 years ago
Explain the rules for multiplication and division to convert units. How do you know when to multiply and when to divide to conve
Dima020 [189]
Well, units divide and multiply just like numbers. That's why Area is in units of  distance squared (cm × cm = cm²) and volume is cubic distance (m × m × m = m³).

Likewise other mathematical operations can be performed on them, including division where they can cancel out of the equation.

For instance, a rate, speed, slope or conversion factor is usually one unit divided by another unit. Like so...

speed = 5 meters per second
= \frac{5m}{1sec}

If you are given a distance traveled, let's say 100 meters and asked to solve for time it takes to get there. You would divide by the speed so that meters cancel leaving only time.

** Of course to divide by a fraction is to flip and multiply so really you're just multiplying by it, making sure the same units are diagonal and cancel out like so:

100 m *  \frac{1sec}{5m} = 20 sec


Hope this helps!

4 0
3 years ago
The angle formed by the intersection of a secant and a tangent is equal to the sum of the measures of the intercepted arcs.
Ksivusya [100]

Answer: False

Step-by-step explanation:

The measure of the created angle is equal to the difference of the measure of the arcs.

5 0
3 years ago
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