Indicate whether the value of x shown is a solution of the given equation.x - 7.3 = 3.8, if x = 11.1
A. Yes
B. No
Answer: A
Mathematics
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Evaluate the expression for the given replacement values.2x2 + 6y for x = 9, y = 10
A. 222 B. 384 C. 254 D. 1740
Mathematics
Factor completely, or state that the trinomial is prime.9x2 + 12xy + 4y2
A. (9x + y)(x + 4y) B. (3x - 2y)2 C. (3x + 2y)2 D. (3x + 2y)(3x - 2y)
Mathematics
A vertical beam of a searchlight, S, illuminates a cloud at P. An observer, Q, 100 feet from S measures the angle of elevation to P as 82°. How high is the cloud?
Mathematics
Simplify.(-49 ÷ 7) - (9 ÷ 9)
A. 6 B. -8 C. -7 D. 7
Mathematics