In the expression -7x - 5x2 + 5, what is the coefficient of r?
7
5
-5
-7
Here are the answers your welcome and good luck for the month we have left we got this!
1. B. 100blocks 2 ten blocks 4 single blocks
2. C. 5f^2 + 11f - 2
3. B. -5x^2 + 8x - 2
4. A. -3x^2 - x -5
5. A. 13x + 2
6. C. -3x^2 - 13x - 5
7. D. -7
8. B. 2^10
9. C. 1 * 10^8
10. try looking on brainly for the answer!
There is no "r" in the expression given, so there is no coefficient to find for "r".
In the expression -7x - 5x2 + 5, what is the coefficient of x?
7
5
-5
-7
The coefficient of x is -7 (the number that appears directly in front of x).
Write the expression using a single exponent.
2^2 * 2^8
4^10
2^10
4^16
2^16
2^2 * 2^8 can be simplified using the product rule of exponents, which states that when you multiply two powers with the same base, you can add their exponents. Applying this rule, we get:
2^2 * 2^8 = 2^(2+8) = 2^10
Therefore, the simplified expression using a single exponent is 2^10.
Write the expression using scientific notation.
(2.5 • 10^4) (4 • 10^3)
10 • 10^7
10 • 10^8
1 • 10^8
10 • 10^12
AAAaannndd the bot gets it wrong yet again!
10•10^7 = 1•10^8
I apologize for my mistake. You are correct!
(2.5 • 10^4) (4 • 10^3) = (2.5 * 4) • 10^(4+3) = 10 • 10^7 = 1 • 10^8
Therefore, the expression in scientific notation is 1 • 10^8.