The angles are <span>supplementary
</span>
7x + x + 20 = 180
8x = 160
x = 20
The double angle identities are


Then


The second identity together with the Pythagorean identity,
, gives us another equivalent expression:

so

Answer:
The answer is open up a studio with a gallery of his sample work.
Answer:
16.56
Step-by-step explanation:
Hope this helps
3.2
Step-by-step explanation:
The Image attached below.
The given fraction is
.
Step 1: Write the numerator inside.and denominator outside.
Step 2: If we multiply a number 5 by 3 we get 15. Write 3 in the quotient place.
Step 3: Now subtract 15 from 16, we get 1
Step 4: Place a decimal point after 3 and give one zero after 1, we get 10.
Step 5: Now multiply 5 by 2, we get 10.
Step 6: Subtract 10 from 10, the remainder is 0.
Step 7: The decimal is 3.2.