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
grigory [225]
3 years ago
13

First to answer all 3 correct gets brainliest !!!!!!!

Mathematics
2 answers:
Yakvenalex [24]3 years ago
8 0
1. 90 degrees
2. Yes
3. 2
pentagon [3]3 years ago
6 0

Answer:

90

Step-by-step explanation:

You might be interested in
If the area of AABC is D, give the expressions that complete the equation for the measure of ZB?
Ira Lisetskai [31]

Given:

The figure of triangle ABC.

The area of the triangle ABC is D.

m\angle B=\sin ^{-1}(\dfrac{m}{n})

To find:

The value of m and n in the given expression.

Solution:

Let h be the height of the triangle ABC.

Area of a triangle is:

Area=\dfrac{1}{2}\times base\times h

Where, b is the base and h is the height of the triangle.

Area=\dfrac{1}{2}\times a\times h

The area of the triangle ABC is D.

D=\dfrac{1}{2}\times a\times h

2D=ah

\dfrac{2D}{a}=h                  ...(i)

In a right angle triangle,

\sin \theta =\dfrac{Perpendicular}{Hypotenuse}

\sin B =\dfrac{h}{c}

\sin B =\dfrac{1}{c}\times \dfrac{2D}{a}              [Using (i)]

\sin B =\dfrac{2D}{ac}

m\angle B =\sin ^{-1}\dfrac{2D}{ac}            ...(ii)

We have,

m\angle B=\sin ^{-1}(\dfrac{m}{n})          ...(iii)

On comparing (ii) and (iii), we get

m=2D

n=ac

Therefore, the required values are m=2D, n=ac.

6 0
3 years ago
Which of the following could be the lengths of the sides of a 30°-60°-90° triangle?
Inga [223]
According to Pythagoras theorem

a^2+b^2=c^2

similarly ,

3^2+ 4^2= 5^2

9+16=25
25=25

LHS=RHS
so angle of triangle is 30 , 60 and 90

answer is 3,4,5
7 0
3 years ago
Read 2 more answers
Find the four geometric means between 486 and 2
melamori03 [73]

Answer:

486, 486r,486r^2,486r^3,486r^4,2

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

2 = 486r^5

-----

r^5= 1/243

----

r = 1/3

---

------

Ans: 486*(1/3),486*(1/9),486(1/27),486(1/81)

-----

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Event tickets cost $20 each. A student ordered some tickets online. There was a service charge of $2.50 per ticket. The total co
antiseptic1488 [7]
(20+2.5)x = cost 

when x equals number of tickets

(20+2.5)24 = 540
8 0
3 years ago
7. What is the value of x for the triangle drawn below?
slega [8]

Answer:

where is the triangle?

8 0
3 years ago
Other questions:
  • Please help me on #30 and explain thank you
    12·1 answer
  • NEED NOW!!!<br> Find the value of each variable in the diagram given that a ∥ b.
    15·1 answer
  • Is g(x) the inverse function of f(x)?<br> f(x)=x–7<br> g(x)=–5x–9
    13·1 answer
  • Question 7 (1 point)
    8·2 answers
  • PLEASE HELP!!
    12·2 answers
  • Whats the square root of 10000
    6·2 answers
  • Find the value of x.
    5·1 answer
  • HELP ME SOLVE THUS PLEASE! 50 POINTS WILL BE REWARDED!!!!
    15·2 answers
  • Ņ<br> Wy+4) - y = 6 is a quadratic equation.<br> O True<br> False
    15·1 answer
  • Yall- what is a radius?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!