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
Fofino [41]
3 years ago
11

Can someone help me with this question please !

Mathematics
2 answers:
RoseWind [281]3 years ago
3 0

Answer:

a) A triangle which the angles ratio is 1 : 2 : 3 is a 30º - 60º - 90º right triangle.

b) The shortest side is opposite to the shortest angle. So, we can calculate it using sin 30º.

$\text{sin}(30\º)=\frac{\text{Opposite side to x}}{19} $

$\frac{1}{2} =\frac{\text{Opposite side to x}}{19} $

$\text{Opposite side to x}= 9.5$

AveGali [126]3 years ago
3 0

Answer:

see explanation

Step-by-step explanation:

(a)

Sum the parts of the ratio, 1 + 2 + 3 = 6 parts

Divide 180° ( sum of angles in a triangle ) by 6 to find the value of one part of the ratio.

180° ÷ 6 = 30° ← value of 1 part of the ratio, thus

2 parts = 2 × 30° = 60°

3 parts = 3 × 30° = 90°

Thus the triangle is right

-----------------------------------------

(b)

The sides of a 90°- 60°- 30° triangle are in the ratio

2 - \sqrt{3} - 1 ( where 2 represents the hypotenuse )

Thus the other 2 sides of the triangle are

19 ÷ 2 = 9.5 , and

9.5 × \sqrt{3} ≈ 16.45

The shortest side is 9.5

You might be interested in
Pattern x: Starts at 0. Rule: Add 3.
raketka [301]
I think (0,0) is the only one that starts at 0 for both x and y and stay the same if the add the 3 to x and 6 to y.
5 0
3 years ago
At Lisa's printing Company LLC there are two kinds of printing presses model a witch can print 70 bucks per day and model B whic
erastovalidia [21]

Answer:

Model A is 9

Model B is 5

Step-by-step explanation:

At Lisa's printing Company LLC there are two kinds of printing presses model.

Let x = the number of model A printing press.

Let y = the number of the model B printing press.

model A can print 70 bucks per day and model B can print 55 bucks per day.

The total number of both models prints 905 bucks per day.

This means

70x + 55y = 905 - - - - - - - - -1

The company owns 14 total printing presses. This means

x + y = 14 - - - - - - - - - -2

x = 14-y

Put x = 14-y in equation 1

70(14-y) + 55y = 905

980 -70y + 55y = 905

-15y = 905-980= -75

y = -75 / -15= 5

x = 14-y = 14-5

= 9

5 0
3 years ago
What Is the volume ?
MrMuchimi
336......?? find the area of cross section and than multiply with the lenght
5 0
3 years ago
Read 2 more answers
Which of the following are valid names for the given polygon?
DIA [1.3K]
<span>When naming a polygon, the letters must be connected. It shouldn't jump from one letter to the other on different sides. 
The answers for this question are A, C, D, and F.
</span><span>B doesn't work because A isn't directly connected to O.
E doesn't work because K isn't directly connected to N.</span>

7 0
3 years ago
What is the ratio of 18 black bears to 27 mountain lions <br> Help !
Yakvenalex [24]

Answer:

18:27

Step-by-step explanation:

In the question the first one that is stated goes first then the other one. While finding a ratio it's pretty easy since all you have to do is 18:27 and done!

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which statement describes
    7·2 answers
  • Adding negative numbers<br> Add.<br> -7 +4=
    7·2 answers
  • Katrina earns $9.25 per hour plus a 12% commission on any sales she makes. In one day, she worked for 11 hours, and she made $38
    9·1 answer
  • Factorize -5x - 5y<br>Please show full and correct working!!!!!!
    15·1 answer
  • The radius of a circle is 5m, what is the diameter​
    13·2 answers
  • Which equation is represented by the table
    10·2 answers
  • Damon, Dave &amp; Dina share some money in
    14·2 answers
  • What is the x-value of the solution for this system<br> 2x+3y=45<br> x+y=10
    12·1 answer
  • Around balloon has a diameter of 7 3/8 inches which of the following is closest to the number of cubic inches of Air can hold it
    13·1 answer
  • Answer all for brainliest
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!