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qwelly [4]
3 years ago
6

3. Multiply the polynomials (a^2 + 3a – 4) and (2a^2 – a + 5). Simplify the answer. Show your work.

Mathematics
1 answer:
Elza [17]3 years ago
8 0

Answer:

2a^4+5a^3-6a^2+19a-20

Step-by-step explanation:

(a^2+3a-4)(2a^2-a+5)

2a^4-a^3+5a^2+6a^3-3a^2+15a-8a^2+4a-20

2a^4-a^3+6a^3+5a^2-3a^2-8a^2+15a+4a-20

2a^4+5a^3+2a^2-8a^2+19a-20

2a^4+5a^3-6a^2+19a-20

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Which of the algebraic expressions are linear expressions? Select two answers.
cupoosta [38]

Answer:

Option A and Option E

Step-by-step explanation:

By definition linear expressions  have the following form:

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To answer the question, identify among the options the expressions that have this form:

Option A.

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Option E.

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What is 8.24 written as a percent
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A car is traveling at a steady speed. It travels 1 3/4 miles in 2 1/3 minutes. How far will it travel in 47 minutes? In 1 hour?
aleksandrvk [35]

Answer:

  • Distance in 47 minutes = 0.75 × 47 = 35.25 miles
  • Distance in 1 hour or (60 minutes) = 0.75 × 60 = 45 miles

Step-by-step explanation:

Given that the car is traveling at a steady speed.

Distance traveled in 2 1/3 or 7/3 or (2.33) minutes = 1 3/4 miles

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Thus,

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Thus,

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7 0
3 years ago
The data set shows the number of hours per week that each student in a class spends studying at home. What is the shape of the d
AVprozaik [17]

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The answer is symmetrical

Step-by-step explanation:

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3 years ago
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Zepler [3.9K]

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Step-by-step explanation:

7z<-28= -9

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3 years ago
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