B.
sin^2x + cos^2x =1
hence Sin^2x-1 = - cos^2x
Answer:
Circumference of Circle B=19.625cm
Step-by-step explanation:
The circumference formula is: 2pie(r) = pie(d)
We have diameter of the first circle which is 6. Now, because the diameter of second circle is 25% greater than this,
Hence, we add 25% in 6:
6+25/100 =6+0.25=6.25 cm
Therefore, we have diameter of 6.25 for circle B.
Now, we need to find the circumference of the Circle A.
circumference= pie(d) = pie(6)= 3.14times6= 18.84
Now use the proportional reasoning to find Circumference of Circle B:
circumference of Circle A/diameter Circle A = circumference of Circle B/diameter Circle B
18.84/6=circumference of Circle B/6.25
Cross multiply and divide:
(18.84times6.25)/6 = Circumference of Circle B
Solve:
Circumference of Circle B=19.625cm
Hope this helps!
Mark brainliest if you think i helped! Would really appreciate!
Answer:
Sam made an error subtracting 258 from 270.
Step-by-step explanation:
0.043 / - 0.2709 /- 258 = 129. 129 - 129 = a remainder of 0 and quotient of negative 63.
Should actually answer and be 0.00061523317
So if sam rewrote this as;
0.043 / - 270.9 /- 258 = 6.15233173
There is no 63 or 6.3 or 630 answer possible and 5 decimals to the right would be absurd.
