Add.(-9y2 - 20y + 19) + (2y2 + 2y).
A. -7y2 - 18y + 19
B. -7y4 - 18y2 + 19
C. -7y2 - 18y - 19
D. -25y6 + 19
Answer: A
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Classify the polynomial by the number of terms. Then identify the degree of the polynomial.-7x4 + 7w3 + 8w - 2y5 + 1
A. Polynomial of degree 4 B. Polynomial of degree 14 C. Polynomial of degree 5 D. Polynomial of degree 13
Identify the type of sampling described by the proposal.A market researcher randomly selects 500 homeowners under 40 years of age and 200 homeowners over 40 years of age.
A. stratified sample B. convenience sample C. simple random sample D. systematic sample E. cluster sample
Add or subtract. Simplify all answers. Express as a mixed number.16
+ 2
A. 16
B. 18
C. 19
D. 17
Translate the words into mathematics. Do not answer the question.What is the difference between 31 and 8?
A. 31 - 8 B. 8 - 31 C. 31 + 8 D. 31 ? 8