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
A bicycle has a listed price of 
Yakvenalex [24]

Answer: 57.9 dollar

891.95 x 6.5%

4 0
3 years ago
Read 2 more answers
Beach Cruises prints brochures and fliers to advertise their dolphin watching tours. To print, the brochure requires three pages
Nimfa-mama [501]

Answer:

500 divided by 80 equals 6.25. 6.25 divided by 100 equals 0.0625

Step-by-step explanation:

500 divided by 80 equals 6.25. 6.25 divided by 100 equals 0.0625

6 0
3 years ago
Sea f(x) = 5x + 3 entonces f(6) = ?
sesenic [268]

Answer:

f(6)=33

Step-by-step explanation:

f(6)=5(6)+3

f(6)=30+3

f(6)=33

7 0
3 years ago
Emily spent £2400 on holiday in 2017.
LekaFEV [45]

Answer:

£1920

Step-by-step explanation:

The amount she spent in 2016 is 20% less than 2017. 20% less than is the same as 80% of the amount she spent in 2017. So, to find how much she spent in 2016, multiply 2400 by 0.80 (the decimal form of 80%):

2400 * 0.8 = 1920

Emily spent £1920 on holiday in 2016.

I hope this helps :)

8 0
2 years ago
Do you need to regroup 56+3 when adding to a two digit number
artcher [175]
You don't need to regroup when adding a two-digit number with a number.
3 0
3 years ago
Other questions:
  • How to do this question plz answer ​
    9·1 answer
  • If log.. (125) = 3, then x =
    9·1 answer
  • What is the area of a regular pentagon with a side of 20 inches? can you explain?
    6·1 answer
  • Use the Euclidean Algorithm to demonstrate that 621 and 82 are relatively prime to each other. Explain.
    10·1 answer
  • Select a composite number to break into factors. Continue factoring until all factors are prime
    13·1 answer
  • The expression means 15 minus the product of 5 times the difference of p minus 6. If p = 8, then the value of the expression is
    11·1 answer
  • (PLEASE HELP AS SOON AS POSSIBLE)
    11·2 answers
  • Lol but how do i do this??
    15·2 answers
  • PLEASE HELP MEE!!b<br><br><br><br>znzjz<br><br><br><br><br><br><br><br>​
    13·1 answer
  • I need help please with linear function
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!