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
ICE Princess25 [194]
3 years ago
9

Find the Value of a and b in the triangle below select the two answers fro the list of choices

Mathematics
2 answers:
shutvik [7]3 years ago
7 0

Answer:

Angle a is 42 degrees and Angle b is 138 degrees

Step-by-step explanation:

I show my working in the pic above

The only thing that is weird is that 42 degrees is not an option in in your answers but im certain that angle A is 42 degrees

nataly862011 [7]3 years ago
3 0
For angle a it will be 42degrees and for angle b it will be 138degrees and i am 100%sure
You might be interested in
A student wanted to find the sum of all the even numbers from 1 to 100. He said:
murzikaleks [220]

Answer:

The statements are incorrect as: The sum of even numbers from 1 to 100(i.e. 2550) is not double\twice of the sum of odd numbers from 1 to 100(i.e. 2500).

Step-by-step explanation:

We know that sum of an Arithmetic Progression(A.P.) is given by:

where 'n' denotes the "number" of digits whose sum is to be determined, 'a' denotes the first digit of the series and '' denote last digit of the series.

Now the sum of even numbers i.e. 2+4+6+8+....+100 is given by the use of sum of the arithmetic progression since the series is an A.P. with a common difference of 2.

image with explanation

Hence, sum of even numbers from 1 to 100 is 2550.

Also the series of odd numbers is an A.P. with a common difference of 2.

sum of odd numbers from 1 to 100 is given by: 1+3+5+....+99

.

Hence, the sum of all the odd numbers from 1 to 100 is 2500.

Clearly the sum of even numbers from 1 to 100(i.e. 2550) is not double of the sum of odd numbers from 1 to 100(i.e. 2500).

Hence the statement is incorrect.

Step-by-step explanation:

3 0
3 years ago
Prove that:- (1-sinA)(1+sinA)÷(1+cosA)(1-cosA)=cot^2A​
astraxan [27]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

sin²x + cos²x = 1 , then

sin²x = 1 - cos²x and cos²x = 1 - sin²x

Consider the left side

\frac{(1-sinA)(1 + sinA)}{(1+cosA)(1-cosA)} ← expand numerator/denominator using FOIL

= \frac{1-sin^2A}{1-cos^2A}

= \frac{1-(1-cos^2A)}{1-(1-sin^2A)}

= \frac{1-1+cos^2A}{1-1+sin^2A}

= \frac{cos^2A}{sin^2A}

= cot²A = right side , thus proven

6 0
3 years ago
35 points!! How much does a fish weigh if its tail weighs 4 kilograms, it's head weighs as much as it's tail and half its body,
NeX [460]

Let t, h, b represent the weighs of tail, head, and body, respectively.

t = 4 . . . . given

h = t + b/2 . . . . the head weighs as much as the tail and half the body

b/2 = h + t . . . . half the body weighs as much as the head and tail

_____

Substituting for b/2 in the second equation using the expression in the third equation, we have

... h = t + (h + t)

Subtracting h from both sides gives

... 0 = 2t . . . . . . in contradiction to the initial statement about tail weight.

Conclusion: there's no solution to the problem given here.

4 0
3 years ago
Find the slope <br> help with this please it’s due soon :)
GrogVix [38]
Undefined!! i hope this helps
4 0
3 years ago
I need help finding the area
AleksAgata [21]
It's 192, I'm pretty sure. I hope that you get this right! :^)
7 0
3 years ago
Other questions:
  • Need some answer please
    9·1 answer
  • Use the expression 5(6 + 4x) to answer the following:
    5·1 answer
  • A tank contains 120 liters of fluid in which 50 grams of salt is dissolved. Brine containing 1 gram of salt per liter is then pu
    5·1 answer
  • What is the last of 24 and 72
    14·1 answer
  • (2/3)^x=3.375. Solve for x
    13·1 answer
  • Please help. it’s really important!
    14·1 answer
  • What is the gcf of 3x^2 +9
    5·2 answers
  • How high is the hand of the superhero balloon above the ground?
    8·1 answer
  • Write the Reciprocal of 2 and 3/4
    7·1 answer
  • What is the common difference for this arithmetic sequence 45,40,35,30,25,
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!