Solve the problem.At the end of a woman's pregnancy, she had gained 
to weigh 
. Write an equation to describe the change in weight.
A. x + 158 = 18
B. 18 - x = 158
C. x + 18 = 158
D. x - 18 = 158
Answer: C
Mathematics
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Express the number in decimal form (without exponents).2.0307 × 10-7
A. 0.0000020307 B. -203,070,000 C. 0.000000020307 D. 0.00000020307
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Solve the logarithmic equation.log2 (3x - 4) = 2
A. 
B. 5
C. 
D. 
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Find the length of the polar curve.
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Mathematics
Answer the following statement(s) true (T) or false (F)
1. The Parallel Postulate is required to prove that the sum of the angles in a triangle is 180°. 2. If AB ? PQ,?BAC ? ?QPR, and ?ACB = ?PRQ, then ?ABC ? ?PQR. 3. The diagonals of a rhombus are congruent. 4. If the diagonals of a rhombus are 10 cm and 24 cm, then its perimeter is 52 cm. 5. The diagonals of a trapezoid form four triangles, one pair of which is always congruent.
Mathematics