Determine all values for the digit x that make the first number divisible by the second number. If none exist, so state. 4x21 is divisible by 4.
What will be an ideal response?
There are no values for x that make 4x21 divisible by 4.
Mathematics
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Find the required quantity given the wire that lies along the curve r and has density ?.Moment of inertia Iz about the z-axis, where r(t) = (5 cos t)i + (5 sin t)j, 0 ? t ? 
; 
A. Iz = 20
B. Iz = 0
C. Iz = 500
D. Iz = 500
Mathematics
Solve the equation.x2 = -8x
A. {8} B. {0, 8} C. {-8} D. {0, -8}
Mathematics
Find the difference quotient for the function and simplify it.f(x) = x2 - 3x
A. 2x + h B. 2xh + h - 3x C. 2x + h - 3 D. h - 3
Mathematics
Fill in the blank with one of the words or phrases listed below. 
Use the facts below. 2 ? 3 = 6
4 + 17 = 21
20 - 9 = 11
The 7 above is called the 
-10.0px;" />.
A. dividend
B. quotient
C. subtrahend
D. divisor
Mathematics