Write the word statement as an equation. Use x to represent the unknown number. Do not solve.The product of 3 and the difference of a number and 7 is the same as the sum of the number and 40.
A. 3x - 7 = x + 40
B. 3(7 - x) = x + 40
C. 7 - 3x = x + 40
D. 3(x - 7) = x + 40
Answer: D
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 4 for r(t) = (4t2 + 4t + 4)i - 3t3j + (8 - t2)k
A. v(4) = 36i + 144j + 8k B. v(4) = 20i - 48j - 4k C. v(4) = 36i - 144j - 8k D. v(4) = 28i - 144j - 8k
Mathematics
Find the product.4ax4(9ax6 + 6x2)
A. 36a2x10 + 24x6 B. 36ax + 24x C. 36a2x10 + 6x2 D. 36a2x10 + 24ax6
Mathematics
Provide an appropriate response.When should the sense of an inequality be changed? Give examples of each instance.
What will be an ideal response?
Mathematics
Solve the equation.
= -11
A. -15 B. -44 C. 44 D. 15
Mathematics