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
Zepler [3.9K]
3 years ago
12

Help me please solves this my math teacher will yell at me if I don’t get this done!!!

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
5 0
The answer is 75

First you subtract 180 and 165 to find that smallest angle inside the triangle(15). Then you add 15 and 90,the two angles you know, and do 180 - 105= 75.

The trick is that all angles inside a triangle equal 180 degrees. Hope this helps!
You might be interested in
Factors of 6:factors of 7:
Olenka [21]
6: 1,3,2,6
7: 1,7
Factors of 6 are 1,3,2,6 because 1x6 (6x1) and 3x2. (2x3)

Factors of 7 are 1,7 because seven is a odd number so you can only multiply it by one and itself. (1x7 or 7x1)
6 0
2 years ago
Will give brainliest
algol [13]

Answer:

Step-by-step explanation:

-5x + 5

6 0
3 years ago
Please help me out :P
Veseljchak [2.6K]

cos θ = \frac{-4\sqrt{65} }{65}, sin θ = \frac{-7\sqrt{65} }{65}, cot  θ  = 4/7, sec  θ = \frac{-\sqrt{65} }{4}, cosec  θ  = \frac{-\sqrt{65} }{7}

<h3>What are trigonometric ratios?</h3>

Trigonometric Ratios are values of all the trigonometric functions based on the value of the ratio of sides in a right-angled triangle.

Sin θ: Opposite Side to θ/Hypotenuse

Tan θ: Opposite Side/Adjacent Side & Sin θ/Cos

Cos θ: Adjacent Side to θ/Hypotenuse

Sec θ: Hypotenuse/Adjacent Side & 1/cos θ

Analysis:

tan θ = opposite/adjacent = 7/4

opposite = 7, adjacent = 4.

we now look for the hypotenuse of the right angled triangle

hypotenuse = \sqrt{7^{2} + 4^{2} } = \sqrt{49+16} = \sqrt{65}

sin θ = opposite/ hyp = \frac{7}{\sqrt{65} }

Rationalize, \frac{7}{\sqrt{65} } x \frac{\sqrt{65} }{\sqrt{65} } = \frac{7\sqrt{65} }{65}

But θ is in the third quadrant(180 - 270) and in the third quadrant only tan and cot are positive others are negative.

Therefore, sin θ = - \frac{7\sqrt{65} }{65}

cos   θ  = adj/hyp = \frac{4}{\sqrt{65} }

By rationalizing and knowing that cos  θ  is negative, cos θ  = -\frac{-4\sqrt{65} }{65}

cot θ  = 1/tan θ  = 1/7/4 = 4/7

sec θ  = 1/cos θ  = 1/\frac{4}{\sqrt{65} } = -\frac{-\sqrt{65} }{4}

cosec θ  = 1/sin θ  = 1/\frac{\sqrt{65} }{7} = \frac{-\sqrt{65} }{7}

Learn more about trigonometric ratios: brainly.com/question/24349828

#SPJ1

5 0
1 year ago
What is the solution to the system of equations?<br><br> y = x – 10<br><br> 2x + y = 4
Bumek [7]
2x+(x-10)=4
3x-10=4
3x=14
x=4.6 repeating
6 0
3 years ago
HElp just help me fast htough pleas
MrRissso [65]

Answer:m 1/4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • The density of pure solid copper is 8.94 g/mL. What volume does 5 kg of copper occupy. Please help
    10·1 answer
  • Determine the value of c that satisfies the given relation. 3c-1/3=c/2
    10·1 answer
  • Pls help and explain I will mark brainlist !! :))
    13·1 answer
  • Ariel recorded the number of minutes each person in her neighborhood spent watching television each evening. She then organized
    10·1 answer
  • Solve write or draw to explain Saul and Luisa each scored 167 points on computer games How many points did they score together
    7·1 answer
  • HELP PLS THIS IS DUE SOON-BTW its 7th GRADE MATH
    9·2 answers
  • Does the equation -x+4y=-2 represent a direct variation. if so what is the constant variation
    8·1 answer
  • A group of friends wants to go to the amusement park. They have $80 to spend on
    8·2 answers
  • Match each equation with the property used to re write it
    12·1 answer
  • What is the value of the sin3x/6x; as x approaches to zero
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!