3 years ago

4. Find the value of x in the right triangle below. 60°

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

7 0

Answer:

Step-by-step explanation:

It is worthwhile memorizing the ratios of legs in a 30°–60°–90° triangle. Shortest to longest, the ratios are ...

1 : √3 : 2

Then the sides marked will have the ratio ...

6 : x = 1 : 2 = 6 : 12

x = 12

_____

You can also get there using trigonometry.

cos(60°) = 6/x

x = 60/cos(60° = 60/0.5

x = 12

You might be interested in

8th grade math. Pls help. I'll mark Brainliest

irina1246 [14]

Answer:

3/4

Step-by-step explanation:

y = 3/4x + (-2)

4 0

3 years ago

Slope review

Phantasy [73]

<h2>Answer:</h2>

To find slope, we must use the <u><em>slope formula*</em></u>.

$m = \frac{2 - 0.5}{2 - (-2.5)} = \frac{1.5}{4.5}$

The slope is <em>1.5/4.5</em>.

7 0

3 years ago

Mr. Dodson is having the exterior of his

shepuryov [24]

Answer:

Step-by-step explanation:

6 0

3 years ago

Radium 226, which had been used for cancer treatment, decays with a half-life of 1622 years. suppose there is a 6 gram sample of

sveticcg [70]

This is a relatively simple half life calculation.
To go from 6 to 3 grams, 1622 years is required.
3 to 1.5 grams another 1622 years is required.
So, it undergoes exactly 2 half-lives or 3,244 years.
To see more about half-life click here:
http://www.1728.org/halflife.htm

3 0

3 years ago

What is 9^2÷(2+1)×30-3^3

weeeeeb [17]

I’m pretty sure that the answer 783 :)

6 0

3 years ago