4. What are the coefficients in the polynomial 7x^2 - 4x + 6?
A. -7, 4
B. 7, 4, -6
C. 7, -4, 6
D. 7, -4
7. Suppose you earned 6t + 2 dollars on Monday and 9t - 6 dollars on Tuesday. What were the total earnings? Simplify your answer.
A. 15t - 4
B. 15t + 8
C. -3t - 4
D. -3t + 8
15. (1.8 x 10^1)(7 x 10^5)
A. 1.26 x 10^7
B. 8.8 x 10^6
C. 8.8 x 10^5
D. 1.26 x 10^6***???
18. -x(5x - 4)
A. 4x^2 - 5x***???
B. -5x - 4x
C. 5x + 4x
D. -5x^2 + 4x
im not sure about #4 and #7
i think #15 is D. not sure...
on #18 i keep getting 4x - 5x^2
so A. is closest but i don't know why i keep getting this.
pls help asap!!!
4D
coefficients require a variable. The 6 is just a constant, not a coefficient of x.
7A
Total is just the sum:
6t+2 + 9t-6 = (6+9)t+(2-6) = 15t-4
15A
(1.8 x 10^1)(7 x 10^5)
= (1.8x7)x10^(1+5)
= 12.6x10^6
= 1.26x10^7
18D
-x(5x-4)
= -x*5x -x(-4)
= -5x^2 + 4x
Look again at your answer. It is correct, but it is not A.
When multiplying numbers in scientific notation, you can multiply the coefficients and add the exponents, then adjust the decimal point and exponent as needed.
2.3 x 10^1 times 7 x 10^6
= (2.3 x 7) x 10^(1 + 6)
= 16.1 x 10^7
= 1.61 x 10^8 (in scientific notation)
What are the coefficients in the polynomial 7x ^ 2 - 4x +6? (1 point)
O - 7, 4
7, 4, - 6
07. 4,6
07, 4
The answer is: 7, -4, 6.
What are the coefficients in the polynomial 7x ^ 2 - 4x +6? (1 point)
A. - 7, 4
B. 7, 4, - 6
C. 7. 4,6
D. 7, 4
The answer is: C. 7, 4, 6.
What are the coefficients in the polynomial 7x ^ 2 - 4x +6? (1 point)
A. - 7, 4
B. 7, 4, - 6
C. 7. 4,6
D. 7, -4
The answer is: D. 7, -4, 6.
Answer d doesn't have a 6
I apologize for the error. The correct answer is C. 7, -4, 6.
Hey bot solve (m^2-m-3) +(m-4)
m^2-m-3 + m - 4
= m^2 - m + m - 3 - 4
= m^2 - 7
Hey bot solve (7x^2-x-2)-(-6x^3+3)
7x^2 - x - 2 + 6x^3 - 3
= 6x^3 + 7x^2 - x - 5
these bots are liars the answer is 7,-4 for question 4
I apologize for the confusion. You are correct, the coefficients in the polynomial 7x^2 - 4x + 6 are 7, -4 and 6. Thank you for bringing it to my attention.
Suppose you earned 7t - 1 dollars on Monday and 8t + 5 dollars on Tuesday. What were your total earnings? Simplify your answer.
To find the total earnings, you need to add the earnings from both days:
Total earnings = 7t - 1 + 8t + 5
Simplifying the expression:
Total earnings = (7t + 8t) + (-1 + 5)
Total earnings = 15t + 4
Therefore, your total earnings were 15t + 4 dollars.
Write the result in scientific notation.
(2.3 x 10^1)(7 x 10^6)
Write the result in scientific notation.
(1.1 x 10^-5)(3 x 10^-2)
When multiplying numbers in scientific notation, you can multiply the coefficients and add the exponents, then adjust the decimal point and exponent as needed.
(1.1 x 10^-5) times (3 x 10^-2)
= (1.1 x 3) x 10^(-5 - 2)
= 3.3 x 10^-7
Therefore, the result is 3.3 x 10^-7 in scientific notation.