Answer:
looks like C is best guess
1. Using the exponent rule (a^b)·(a^c) = a^(b+c) ...
![\left(-2x^3y^4\right)\left(5x^9y^{-2}\right)=(-2)(5)\left(x^{(3+9)}y^{(4-2)}\right)\\\\=-10x^{12}y^{2}](https://tex.z-dn.net/?f=%5Cleft%28-2x%5E3y%5E4%5Cright%29%5Cleft%285x%5E9y%5E%7B-2%7D%5Cright%29%3D%28-2%29%285%29%5Cleft%28x%5E%7B%283%2B9%29%7Dy%5E%7B%284-2%29%7D%5Cright%29%5C%5C%5C%5C%3D-10x%5E%7B12%7Dy%5E%7B2%7D)
Simplify. Write in Scientific Notation
2. You know that 256 = 2.56·100 = 2.56·10². After that, we use the same rule for exponents as above.
![8 \left(32\times 10^{11}\right)=(8)(32)\times 10^{11}=256\times 10^{11}=2.56\times 10^{13}](https://tex.z-dn.net/?f=8%20%5Cleft%2832%5Ctimes%2010%5E%7B11%7D%5Cright%29%3D%288%29%2832%29%5Ctimes%2010%5E%7B11%7D%3D256%5Ctimes%2010%5E%7B11%7D%3D2.56%5Ctimes%2010%5E%7B13%7D)
3. The distributive property is useful for this.
(3x – 1)(5x + 4) = (3x)(5x + 4) – 1(5x + 4)
... = 15x² +12x – 5x –4
... = 15x² +7x -4
4. Look for factors of 8·(-3) = -24 that add to give 2, the x-coefficient.
-24 = -1×24 = -2×12 = -3×8 = -4×6
The last pair of factors adds to give 2. Now we can write
... (8x -4)(8x +6)/8 . . . . . where each of the instances of 8 is an instance of the coefficient of x² in the original expression. Factoring 4 from the first factor and 2 from the second factor gives
... (2x -1)(4x +3) . . . . . the factorization you require
Answer:
400000 + 10000 + 300 + 9
Step-by-step explanation:
Just simply take each place value and turn the rest after to zeros, but DO NOT include the zeros that are within the number. Zeros are unnecessary.
I am joyous to assist you anytime.
28% interest would be your answer, you just divide 560/2000=.28
The two points have the same y coordinate, which means that the line is horizontal, which means that the slope is 0.
So, the equation is y=4