What are the coefficients in the polynomial 5x^2 + 2x - 4?
A. 5,2
B. -5,2
C. 5,2,-4 **
D. 5,-2,-4
For questions 2 and 3 add or subtract.
2. (m^2 - m - 4) + (m - 5)
A. m^2 - 2m + 9
B. m^2 + 2m - 9
C. m^2 - 2m - 9 **
D. m^2 - 9
3. (5x^2 + x - 3) - (-2x^3 + 4)
A. -2x^3 + 5x^2 + x - 7
B. -2x^3 + 5x^2 + x - 1
C. 2x^3 + 5x^2 + x - 7
D. 2x^3 + 5x^2 + x + 1 **
4. x^16/x^3 (this is a fraction not dividing)
A.x^16/3
B. x^48
C. x^19 **
D. x^13
5. Which of the following expressions is true?
A. 4^3 x 4^5 < 4^12 **
B. 5^2 x 5^3 > 5^5
C. 3^2 x 3^4 = 3^2
D. 5^2 x 5^4 = 5^8
6. Which of the following expressions is true?
A. 2^4 x 2^3 = 2^12
B. 3^3 x 3^6 > 3^8 **
C. 4^2 x 4^2 > 4^4
D. 5^5 x 5^2 = 5^10
For question 7, multiply. Write the result in scientific notation.
7. (2.3 x 10^1)(7 x 10^6)
A. 1.61 x 10^7
B. 1.61 x 10^8
C. 9.3 x 10^6 **
D. 9.3 x 10^7
For questions 8-10, simplify the expression.
8. -6(6x - 7)
A. -6x^2 + 7x
B. 5x^2 - 6x
C. 6x + 7x
D. -6x - 7x **
9. (2k + 1) (k - 4)
A. 2k^2 - 7k + 4 **
B. 2k^2 - 3k + 4
C. 2k^2 + 9k + 4
D. 2k^2 - 7k - 4
10. (-2y +5)(y + 3)
A. -2y^2 + 8y + 15
B. -2y^2 - y + 15
C. 2y^2 + 8y + 8
D. 2y^2 - y + 8 **
Bruh no one cares So
no one cares about juice world and Xxxtantacion or fortnite. They're all trash
what is the answer
What’s the answer bruh don’t nobody care about juice world
and rip juice, he wasnt dead then but still..
LND
😮💨 Guys just give the answers, no force ofc but it is less annoying to stay on topic until someone gives the correct answers
To find the coefficients in a polynomial, we look at the numerical values in front of each term.
1. The polynomial is 5x^2 + 2x - 4. The coefficients are the numbers in front of the x terms. So the coefficients in this polynomial are 5, 2, and -4. The correct choice is C. 5,2,-4.
2. To add or subtract two polynomials, we combine like terms. In the expression (m^2 - m - 4) + (m - 5), we can simplify by combining the m^2 term, the m term, and the constant term.
The simplified expression is m^2 - 2m - 9. The correct choice is C. m^2 - 2m - 9.
3. To subtract polynomials, we change the sign of each term in the second polynomial and then combine like terms. In the expression (5x^2 + x - 3) - (-2x^3 + 4), we change the signs of the terms in the second polynomial to get (5x^2 + x - 3) + (2x^3 - 4). Then, we combine the x^2 term, the x term, and the constant term.
The simplified expression is 2x^3 + 5x^2 + x + 1. The correct choice is D. 2x^3 + 5x^2 + x + 1.
4. To simplify the expression x^16/x^3, we divide the exponents and subtract them. In this case, 16 divided by 3 is equal to 5 with a remainder of 1. So the simplified expression is x^13. The correct choice is D. x^13.
5. To compare exponential expressions, we use the rule that when multiplying with the same base, we add the exponents. The correct expression in this case is 4^3 x 4^5 = 4^8, which is less than 4^12. The correct choice is A. 4^3 x 4^5 < 4^12.
6. Similar to the previous question, we use the rule that when multiplying with the same base, we add the exponents. The correct expression in this case is 3^3 x 3^6 = 3^9, which is greater than 3^8. The correct choice is B. 3^3 x 3^6 > 3^8.
7. To multiply numbers in scientific notation, we multiply the decimals and add the exponents. In this case, (2.3 x 10^1)(7 x 10^6) is equal to (2.3 x 7) x (10^1 x 10^6) = 16.1 x 10^7. In scientific notation, this is written as 1.61 x 10^8. The correct choice is B. 1.61 x 10^8.
8. To simplify the expression -6(6x - 7), we distribute the -6 to each term inside the parentheses. This gives us -36x + 42. The correct choice is D. -6x - 7x.
9. To simplify the expression (2k + 1) (k - 4), we use the distributive property. This gives us 2k^2 + k - 8k - 4. Combining like terms, we have 2k^2 - 7k - 4. The correct choice is A. 2k^2 - 7k + 4.
10. To simplify the expression (-2y + 5)(y + 3), we use the distributive property. This gives us -2y^2 - 6y + 5y + 15. Combining like terms, we have -2y^2 - y + 15. The correct choice is D. -2y^2 - y + 15.