Collect like terms.7.8a + 8.2b - 1.2a - 2.1b
A. 9.0a + 10.3b
B. 6.6a + 6.1b
C. 6.6a + 10.3b
D. -6.6a + 6.1b
Answer: B
Mathematics
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Rewrite each number using scientific notation before performing the operation. Leave your answer in scientific notation form.(500)(40,000)
A. 2.0 × 106 B. 2.0 × 109 C. 2.0 × 107 D. 2.0 × 108
Mathematics
Solve the problem.If Main Street is parallel to First Street, find the value of x.
A. 298 m B. 201 m C. 290 m D. 139 m
Mathematics
Determine the total turn for the closed curve. Assign a positive measure to counterclockwise turning.
A. 0° B. 360° C. 720° D. -360°
Mathematics
Let U = {q, r, s, t, u, v, w, x, y, z}, A = {q, s, u, w, y}, B = {q, s, y, z}, and C = {v, w, x, y, z}. List the elements in the following set.A ? (B ? C)
A. {q, w, y} B. {q, r, w, y, z} C. {q, y, z} D. {q, s, u, w, y, z}
Mathematics