3 years ago

(PLEASE HELP) (NO SPAM) Complete the special right tringale:

Mathematics

1 answer:

marusya05 [52]3 years ago

6 0

Answer:

Step-by-step explanation:

BD is opposite the 30° angle. The sine of 30° is 0.5. The sin of an angle in a right triangle is opposite/hypotenuse so BD = sin 30°x8.

Now you have two known lengths The third can be found by applying the Pythagorean theorem: BC²+BD²=CD², from which you can establish a numerical value for BC.

You might be interested in

Is √4 rational or irrational?

bulgar [2K]

Rational number since a rational number is Any integer

7 0

3 years ago

Grayson's cell phone plan charges a flat fee of $40 for data and calls and an additional $0.10 per text message sent or received

ANTONII [103]

Answer:

0.67 cents

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

PLEASE HELP!

sesenic [268]

Answer:

$36\sqrt{3}$

Step-by-step explanation:

Hi!

Since an equilateral triangle means that every side is equal, our triangle will have 12 on all sides.

To find the height of an equilateral triangle we use $\frac{a\sqrt{3}}{2}$ .

$\frac{12\sqrt{3} }{2} = 6\sqrt{3}$ .

So the height is $6\sqrt{3}$ .

Now we have to solve 12 * $6\sqrt{3}$ ÷ 2.

$12 \cdot 6\sqrt{3} = 72\sqrt{3}$

$72\sqrt{3}\: \div\: 2 = 36\sqrt{3}$ .

Thus, the area of the triangle is $\boxed{36\sqrt{3}}$ .

Hope this helps!

4 0

3 years ago

A rectangular tank is 100 cm long, 30 cm wide and 12 cm deep.The volume of liquid it will hold is

Marina86 [1]

Answer:

36000cm

V= Length×Width×height

3 0

3 years ago

Read 2 more answers

Does anyone know how to unit rate?

Westkost [7]

Answer:17.91 calories per minute

Step-by-step explanation:

412 calories burned

23 minutes of riding

412/23 = 17.91 calories per minute

3 0

3 years ago

Read 2 more answers