1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
RSB [31]
3 years ago
13

In the right triangle shown

Mathematics
1 answer:
pav-90 [236]3 years ago
3 0

Answer:

12

Step-by-step explanation:

Using the 30-60-90 triangle formula side AB would be double of side CB.

You might be interested in
IC
Ket [755]
Shshshsshejs..................&:&:&;&;$;$,$;$48;
3 0
2 years ago
Use DeMoivre's theorem to evaluate the expression
natima [27]

Answer:

B. \dfrac{9}{2}-i\dfrac{9\sqrt{3}}{2}

Step-by-step explanation:

DeMoivre's theorem:

If the complex number z=r(\cos \alpha+i\sin\alpha), then for natural number n

z^n=r^n(\cos n\alpha+i\sin n\alpha).

In your case,

z=\sqrt{3}\left(\cos\dfrac{5\pi}{12}+i\sin\dfrac{5\pi}{12}\right)

and you have to evaluate z^4.

By DeMoivre's theorem,

z^4=(\sqrt{3})^4\left(\cos 4\cdot \dfrac{5\pi}{12}+i\sin 4\cdot \dfrac{5\pi}{12}\right)=9\left(\cos \dfrac{5\pi}{3}+i\sin\dfrac{5\pi}{3}\right)=9\left(\dfrac{1}{2}-i\dfrac{\sqrt{3}}{2}\right)=\dfrac{9}{2}-i\dfrac{9\sqrt{3}}{2}.

7 0
2 years ago
Astronomers classified the planets into six sizes with five atmosphere types and four average temperature ranges. How many diffe
Phoenix [80]
Fire, ice, and inhabitants
4 0
2 years ago
A system of equations is shown below,
Vikki [24]
Answer: No solution
Step by step:
10x-2(5x+2)=12
10x-10x-4=12
0x=16
No solution
4 0
3 years ago
The kinetic energy (K) that an object has varies jointly with its mass (m) and the square of its velocity (v). The equation that
lord [1]

The kinetic energy of the bowling ball with the mass and traveling at the given velocity is 10.14 Joules.

<h3>What is Kinetic Energy?</h3>

Kinetic energy is simply a form of energy a particle or object possesses due to its motion.

It is expressed as;

K = (1/2)mv²

Where m is mass of the object and v is its velocity.

Given that;

  • Mass of the bowling ball m = 3kg
  • Velocity of the bowling ball v = 2.6m/s
  • Kinetic energy K = ?

We substitute the given values into the above equation.

K = (1/2)mv²

K = 0.5 × 3kg × (2.6m/s)²

K = 0.5 × 3kg × 6.76m²/s²

K = 10.14kgm²/s²

K = 10.14J

Therefore, the kinetic energy of the bowling ball with the mass and traveling at the given velocity is 10.14 Joules.

Learn more about kinetic energy here: brainly.com/question/12669551

#SPJ1

6 0
2 years ago
Other questions:
  • What is sin in geometry
    13·1 answer
  • What is the solution to the equation 1/6n=2?
    7·2 answers
  • At a blood​ drive, 6 donors with type O + ​blood, 3 donors with type A+ ​blood, and donors with type B+ blood are in line. In ho
    11·1 answer
  • Consider a collection of envelopes consisting of 3 red envelopes​, 3 blue envelopes​, 3 green envelopes​, and 3 yellow envelopes
    9·1 answer
  • A hotel offers teo activity packages. One costs $192 and includes 3h of horsebackriding and 2h of parasailing. The second costs
    8·1 answer
  • A candy manufacturer has 130 pounds of chocolate-covered cherries and 170 pounds of chocolate-covered mints in stock. He decides
    8·1 answer
  • What is x increased by 10 divided by 4 as an expression?
    13·1 answer
  • An object is thrown down with an initial velocity of 8 ft/sec. When will the object have fallen 120 feet?
    7·1 answer
  • Find the area of the kite
    6·1 answer
  • A city has a population of 350,000. The population has decreased by 30% in the past ten years. What was the population of the ci
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!