The area of the circle based on the radius given is 102.1 inches ²
<h3>How to calculate the area?</h3>
It should be noted that the area of a circle is calculated thus:
= πr²
where r = radius
π = 3.142
Therefore, when the the radius of a circle is 5.7 inches. This will be calculated for the area thus:
= πr²
= 3.142 × 5.7²
= 3.142 × 32.49
= 102.1 inches ²
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Answer:
The answer is 64.
Step-by-step explanation:
To find the volume of a prism, you multiply l x w x h (length x width x height). The length is 8, width is 4, height is 2. 8 x 4 = 32, 32 x 2 = 64.
hope this helped plz tell me if i was right!!!
Answer:
x = 5
Step-by-step explanation:
4x + 2y + z = 24
2x - 3y - z = 2
5x + y + 2z = 21
-----------------
Eliminate z
Add the 1st and 2nd eqn
4x + 2y + z = 24
2x - 3y - z = 2
----------------
6x - 1y = 26 eqn A
Multiply the 2nd eqn by 2, then add the 3rd.
4x - 6y -2z = 4
5x + y + 2z = 21
----------------
9x - 5y = 25 eqn B
---------------
Now you have 2 eqns in 2 unknowns, not 3.
Multiply eqn A by 5 and subtract eqn B.
30x - 5y = 130 eqn A times 5
9x - 5y = 25 eqn B
-------------
21x = 105
x = 5
