Hello i need help please
1 answer:
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Plug in 4 for x and solve equation like so. c=2
Answer:
the area is 50.24 .
Step-by-step explanation:
The formula to find area of a circle is A=π. A is area, and r is for radius. Since we have the diameter here, we just need to divide by 2 to find the radius. 8÷2=4, so there, the radius is 4. Now we need to square 4, and do 4x4, which equals 16. Now to multiply 16 by π, or 3.14. 16 x 3.14 = 50.24. The final answer is 50.24
. Hope this helped! :]
Answer:
1.A matrix is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns.
2.
Solution given:
We have
Sin²-Cos ²
=1
Sin²=1+Cos²
Sin=
3.
4Tan²+4Cot²
-3Tan²
-3Cot²
4Tan²-3Tan²
+4Cot²
-3Cot²
Tan²-Cot²