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
DochEvi [55]
3 years ago
15

Help me out the number inside the triangle is really throwing me off tbh

Mathematics
1 answer:
prisoha [69]3 years ago
6 0

We are given an angle of 60° and a side of 15 cm.

We are given the opposite and is looking for the hypotenuse so we will use the sine ratio to find x.

sin = opp/hyp

hyp = 15 / sin 60

hyp = 17.32...

//

We can also use the tangent ratio to find the adjecent and then use pythagorean to find x.

tan = opp/adj

adj = 15 / tan 60

adj = 8.660.....

8.660....² + 15² = 300²

since the square root of 300 is an irrational number, we have to turn it into a mixed radical.

The answer would be the top one.

You might be interested in
Find the inverse of function f. f(x) = 1/2x +7 / <img src="https://tex.z-dn.net/?f=f%28x%29%3D%5Cfrac%7B1%7D%7B2%7Dx%20%2B%207"
kvasek [131]

The answer is C.) f^-1 (x) = 2x- 14 /  \:f^{-1\:}\left(x\right)=2x\:-\:14

5 0
3 years ago
Evaluate. 12+4⋅3−15 Enter your answer in the box.
Nina [5.8K]

Answer:

the answer is 1.3

Step-by-step explanation:

12+4.3 is 16.3

16.3-15 is 1.3

7 0
3 years ago
Read 2 more answers
What is the average (arithmetic mean) of the first 90 measurements in a certain list of 92 measurements? (1) the average of the
marishachu [46]
The sum of all the measurements is just the average times the number.

\bar x = \frac{1}{n} \sum_{i=1}^n x_i

\sum_{i=1}^n x_i = n \bar x

So if the average of all 92 is 7 the sum of those is 92 \times 7

The average of the last two is 7.2 so their sum is 2 \times 7.2

That means the sum of the first 90 is 92 \times 7 - 2 \times 7.2

so the average of the first 90 is

 \dfrac{92 \times 7 - 2 \times 7.2}{90} = 6.99556 cm



7 0
3 years ago
Students were asked to explain the first step in solving the equation: 3y + 4 = 16. Susan says multiply by three. Ted says to ad
Juli2301 [7.4K]

Answer:

Nicole is correct

Step-by-step explanation:

They need to get the 3y on one side of the equal sign and the known numbers on the other side. To do this, they must subtract the 4 from both sides.

8 0
3 years ago
What is the result when 4x3 + 4x² + 13x + 6 is divided by 2x + 1?
Nitella [24]

Answer:

2x^2+x+6

Step-by-step explanation:

if the 4x3 meant 4x^3, then im pretty sure this is the correct answer

3 0
3 years ago
Other questions:
  • Find the value of x
    10·1 answer
  • seal had a balance of negative $4 in his saving account after making a deposit he has $25 in his account what is the overall cha
    11·1 answer
  • I need Help Asap Please Please
    14·1 answer
  • The arithmetic mean of the monthly salaries of two people is $4361. One person eams $3867 per month. What is the monthly salary
    13·2 answers
  • If M = 5x2 + 7x – 4 and N = -3x2 - 4x + 5, what’s M-N
    7·1 answer
  • The base unit used to measure weight in metric system is
    9·2 answers
  • If m = (3x-1) and n = (3x+1),sjow that x² = mn+1 by 9​
    5·1 answer
  • This is for math n i dont get it, help pls :,)
    13·1 answer
  • Can someone please help me with this problem I’m really struggling
    7·2 answers
  • a person born in 1980 can claim, “I will be x years old in the year x squared.” write a Python program to determine the value of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!