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
dexar [7]
3 years ago
8

(06.01 MC)

Mathematics
1 answer:
MAXImum [283]3 years ago
5 0
The answer is a square
You might be interested in
During a sale, everything in the store was ⅕ off the ticketed price. What percent of an item's original price should you expect
tiny-mole [99]
You would pay 80% of the original price because 1/5 is 20% and you would subtract 20 from 100 to get 80 as your answer 

Hope this Helps :3
4 0
3 years ago
If sinA=√3-1/2√2,then prove that cos2A=√3/2 prove that
Ivan

Answer:

\boxed{\sf cos2A =\dfrac{\sqrt3}{2}}

Step-by-step explanation:

Here we are given that the value of sinA is √3-1/2√2 , and we need to prove that the value of cos2A is √3/2 .

<u>Given</u><u> </u><u>:</u><u>-</u>

• \sf\implies sinA =\dfrac{\sqrt3-1}{2\sqrt2}

<u>To</u><u> </u><u>Prove</u><u> </u><u>:</u><u>-</u><u> </u>

•\sf\implies cos2A =\dfrac{\sqrt3}{2}

<u>Proof </u><u>:</u><u>-</u><u> </u>

We know that ,

\sf\implies cos2A = 1 - 2sin^2A

Therefore , here substituting the value of sinA , we have ,

\sf\implies cos2A = 1 - 2\bigg( \dfrac{\sqrt3-1}{2\sqrt2}\bigg)^2

Simplify the whole square ,

\sf\implies cos2A = 1 -2\times \dfrac{ 3 +1-2\sqrt3}{8}

Add the numbers in numerator ,

\sf\implies cos2A =  1-2\times \dfrac{4-2\sqrt3}{8}

Multiply it by 2 ,

\sf\implies cos2A = 1 - \dfrac{ 4-2\sqrt3}{4}

Take out 2 common from the numerator ,

\sf\implies cos2A = 1-\dfrac{2(2-\sqrt3)}{4}

Simplify ,

\sf\implies cos2A =  1 -\dfrac{ 2-\sqrt3}{2}

Subtract the numbers ,

\sf\implies cos2A = \dfrac{ 2-2+\sqrt3}{2}

Simplify,

\sf\implies \boxed{\pink{\sf cos2A =\dfrac{\sqrt3}{2}} }

Hence Proved !

8 0
3 years ago
2y+7z-2z+4y+8+y+2 Combine Like Terms
Andrew [12]

Answer:

7y+5z+10

Step-by-step explanation:

7y+5z+10

8 0
3 years ago
Read 2 more answers
Sour Patch Kids cost $ 3.00 per pound. For each question, explain or show your reasoning. How. any pounds of Sour Patch Kids can
aivan3 [116]

Answer:

the third one

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The answer is B not C
Andreas93 [3]

Answer:

B

Step-by-step explanation:

because the answer is b... not c

8 0
3 years ago
Read 2 more answers
Other questions:
  • Find The art length of a sector with an area of 8 square units.
    12·1 answer
  • How can I solve polynomials?
    7·1 answer
  • Daisy designs 30 cards in a day and Lisa designs 12 cards in a day how many more cards does daisy design than Lisa
    15·1 answer
  • What is the fractional equivalent of .005?
    6·2 answers
  • Which substances dissolve in water? Check all of
    9·2 answers
  • 23. Cynthia used some of the ordered pairs from the set below to make a new set.
    7·1 answer
  • X=3y+18<br> 5x+4y=-5 <br> Solve in substition equations
    6·1 answer
  • If the perimeter of the surface of a cube is 12 metre,<br>then what is the volume of it?​
    12·1 answer
  • ABCD is a trapezium with AB parallel to DC.
    15·1 answer
  • HOW MANY 7 DIGIT TELEPHONE NUMBERS ARE POSSIBLE IF THE FIRST DIGIT CANNOT
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!