Write the number in standard form.8.35 × 10-4
A. 0.00835
B. -835,000
C. 0.0000835
D. 0.000835
Answer: D
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Solve the initial value problem.Differential Equation: 
= (9t2 - 9)i - j + 
kInitial Condition: r(0) = -4i + 7j + 6k
A. r(t) = (3t3 - 9t - 4)i + (7 - t)j + (
- 4)k
B. r(t) = (3t3 + 9t + 4)i + (7 + t)j + (
+ 4)k
C. r(t) = (3t3 - 9t - 4)i + (7 - t)j + (2
+ 4)k
D. r(t) = (9t3 - 9t - 4)i + (7 - t)j + (
+ 4)k
Name the quadrant or axis in which the point lies.(-15, -9)
A. quadrant I B. quadrant II C. quadrant III D. quadrant IV
Mark as true any statement that is always true. Mark as false any statement that is never true or that is not necessarily true. Be able to justify your answers.
1. A soccer ball is a regular polyhedron. 2. The lateral faces of a rectangular prism meet at the apex of the prism. 3. The two opposite faces of a cone are called the bases of the cone and they can be oval (elliptically) shaped as well as truly circularly shaped. 4. A pyramid with rectangular faces is called a rectangular pyramid.
Add or subtract as indicated.(5a + 6b - c) - (3b + 5c - 5d)
A. 5a + 3b - 6c - 5d B. 5a + 3b - 6c + 5d C. 5a + 3b + 4c + 5d D. 5a + 3b - 4c + 5d