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10 points What is the difference of the two polynomials? * (9x2 + 8x) - (2x2 + 3x) 7x² + 5x 7x² + 11x Option 1 Option 2 h 11x² + 5x 11x² + 11x Option 3 Option 4
asked
Jan 18, 2021
Mathematics
high-school
1
answer
1
vote
93.1k
views
Which are some ways to prevent infectious disease? A avoid pathogens, get immunizations, and practice healthy behaviors B skip meals, avoid exercise, and get as much sleep as possible C share eating utensils,
asked
Jul 14, 2020
Health
high-school
2
answers
5
votes
149k
views
A test has a high degree of validity if it A) measures or predicts what it is supposed to measure or predict.B) yields consistent results every time it is used.C) produces a normal distribution of scores.
asked
Apr 12, 2020
Social Studies
high-school
2
answers
5
votes
66.4k
views
1. buena nutrición a) positivo b) negativo 2. colesterol a) positivo b) negativo 3. comer comida sin grasa a) positivo b) negativo 4. comer en exceso a) positivo b) negativo 5. consumir mucho alcohol a)
asked
Jan 9, 2020
Spanish
high-school
1
answer
0
votes
147k
views
The second industrials-revolution took place from the —- century to ——
asked
Jan 6, 2020
Computers and Technology
middle-school
1
answer
5
votes
128k
views
What would occur if the muscle tissue failed within a damaged blood vessel? Vascular spasm would not occur, resulting in excessive blood loss. Coagulation would not occur, preventing fibrin formation.
asked
Nov 4, 2019
Health
high-school
1
answer
0
votes
77.4k
views
A drawer has a volume of 1575 cubic inches. the drawer is 5 inches deep and 21 inches long. What is the width of the drawer?
asked
Sep 26, 2019
Mathematics
middle-school
1
answer
2
votes
220k
views
Which characteristics do polar climates have that highland regions do not? Check all that apply few trees a tree line Cold temperatures Very little precipitation Two seasons with temperature differences
asked
Jul 3, 2019
Biology
middle-school
2
answers
5
votes
98.4k
views
State three reasons why it might be important to preserve botana curus
asked
Sep 13, 2018
Biology
middle-school
2
answers
4
votes
176k
views
How did the Crusades bring about the end of the Dark Ages in Europe? What was the "spark in the dark" that ended the "darkness" of the Middle Ages A. Science-Europeans were able to study the stars (astronomy)
asked
Mar 24, 2018
History
middle-school
1
answer
5
votes
128k
views
When liquid helium is exposed to room temperature, it forms a gas. Which best explains why this happens? The liquid helium absorbs energy from the air in the room. The particles in the air absorb the energy
asked
Nov 14, 2017
Chemistry
high-school
2
answers
1
vote
60.7k
views
If the quiz mark was from 20 and I want to make it 15 what I do
asked
Mar 23, 2017
Mathematics
middle-school
2
answers
2
votes
15.1k
views
Between 2003 and 2007, the number of people infected with AIDS and the number of people who died of AIDS in Botswana
asked
Nov 24, 2016
History
high-school
2
answers
2
votes
160k
views
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