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yan [13]
3 years ago
10

Find c.

Mathematics
1 answer:
Anika [276]3 years ago
6 0

Answer:

9.7cm

Step-by-step explanation

According to the sine rule;

a/sinA = c/sinC

8/sin55 = c/sin82

Cross multiply

csin55 = 8sin82

c(0.8192) = 8(0.9903)

c = 8(0.9903)/0.8192

c = 7.9221/0.8192

c = 9.67

Hence the value of c to the nearest tenth is 9.7cm

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A train moves from rest to a speed of 25 m/s in 30.0 seconds. What is its acceleration?
12345 [234]

Answer:

a=0.8\bar{3}m/s^2

Step-by-step explanation:

a=\frac{v}{t}  \\a=\frac{25m/s}{30s}\\ \\a=0.8\bar{3}m/s^2

6 0
3 years ago
Akira and a business associate agree to invest in a project estimated to cost $1.8 million (1,800,000). They decide to split the
MariettaO [177]
If it's relationship Akira : Business A. = 7:5 

The part of Akira is 7k

and the part of the Business A. is 5k

Then

7k+5k=12k => 12k=1,800,000 => k= 1,800,00/12=150,000$

Akira part is 7k= 7 * 150,000 = 1,050,000$

Good luck!!!!
8 0
3 years ago
Which undefined term is used to define an angle?<br><br> line<br> plane<br> point<br> ray
Afina-wow [57]

The Undefined term that is used to define an angle is a point.

<h2>Further Explanation: </h2><h3>Angle</h3>
  • An angle is defined as the union of two rays with a common endpoint.
  • The common end point is known as the vertex of the angle while the rays are known as the sides of the angle.
<h3>A ray  </h3>

It is a part of a line with one end point and proceeds on in one direction.

<h3>Naming of angles</h3>
  • Angles can be named in three different ways;
  1. Using three Capital letters such as ∠ PQR, or ∠BCD. The middle letter represents the vertex of the angle. Therefore, the angles above are read as "angle PQR" and angle BCD.
  2. Using the Vertex of the angle. For example, in the case of ∠PQR, can also be called angle Q, while ∠BCD can be called angle C.
  3. Angles can also be named by placing any number or symbol at the vertex in the interior of the angle. Such that angles can be called angle 1 or angle 3 , or angle 5, and so on.
  • Angles are measured using a tool known as a protractor
<h3>Measuring of an angle using a protractor</h3>
  • To measure the angle, the mid-point of a protractor is placed on the vertex of the angle.  
  • Then lining up one side of the angle with the zero line of the protractor.  
  • Then read the degrees where the other side crosses the number scale.

Keywords: Rays, angles, properties of angles, measurement of angles

<h3>Learn more about;</h3>
  • Angles: brainly.com/question/1745042
  • Rays: brainly.com/question/1745042
  • Units used to measure angles: brainly.com/question/8812311
  • Methods of naming angles: brainly.com/question/1594009
  • Measuring angles: brainly.com/question/1594009

Level: Middle school  

Subject: Geometry

Topic: Angles  

4 0
3 years ago
Read 2 more answers
Two of the lights at the local stadium are flickering. They both just flickered at the same time.
Dahasolnce [82]

Answer:

56

Step-by-step explanation:

you have to find the LCM of 7 AND 8.

which is 56

6 0
3 years ago
Select the best answer for the question
JulijaS [17]
The answer is A. To add fractions, the denominator has to be the same. What number do 9 and 3 share when multiplying ? It is 9.

So multiply 2/3 by 3/3 to get 6/9. And 1/9 by 1/1 to get 1/9. Now add 6/9 with 1/9 which is 7/9

Now add 7/9 with 5/18. 9 and 18 share 18. Multiply 7/9 by 2/2 which is 14/9. Add 14/9 to 5/18 which is 19/18
4 0
3 years ago
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