Answer:
8
Step-by-step explanation:
∠1 = (6x + 2)° (vertically opposite angles are equal)
15x + 10° +∠1 = 180° (co-interior angles are equal)
15x + 10° + 6x + 2° = 180°
15x + 6x + 10° + 2° = 180°
21x + 12° = 180°
21x = 180° - 12°
21x = 168°
x = 168/21
x = 8
hope u understood!
Answer:
B
Step-by-step explanation:
Answer:
28:u multiply something 3 times therefore it is 1/3
29: because the numbers are unknown
Step-by-step explanation:
Answer: L=13
Step-by-step explanation: Multiply your eight and five...
5•8=40
Then...Divide forty by two-hundred-fifty...
250/40=13.
You ALWAYS want to check your answer by multiplying to see if you are absolutely correct.
So...5•8•13=250.
Your answer is...Length = 13.
I hope this helps you!
Still begging? OK. Let's do it with algebra first then put in the numbers.
We're given the Circumference of a circle C, and we want the area A.
The radius is related to the circumference by
C = 2π r
The area is related to the radius by
A = π r²
Solving for r in the first equation,
r = C/(2π)
So the area is
A = π ( C/(2π) )² = πC²/(4π²) = C²/(4π)
---------------------------
OK we're given C=25 1/7 inches, π≈22/7
C = (7×25 + 1)/7 = 176/7 = (22×8)/7
That's a little convenient.
A = C²/4π = ( (22×8)/7 )² / (4 (22/7) ) = (8²/4) (22/7) = (16*22)/7 = 352/7
After those nice numbers they want an approximation. How disappointing.
A = 50.2857142857 sq inches
Answer: 50.29