Answer:
A. 2x + 1
Step-by-step explanation:
6x³ - 15x² - 9x
3x (2x² - 5x - 3)
3x (2x² + x - 6x - 3)
3x (x (2x + 1) - 6x - 3)
3x (x (2x + 1) - 3 (2x + 1))
= 3x <u>(</u><u>2</u><u>x</u><u> </u><u>+</u><u> </u><u>1</u><u>)</u> (x - 3)
one of the factor of the complete factorization is <u>A</u><u>.</u><u> </u><u>2</u><u>x</u><u> </u><u>+</u><u> </u><u>1</u>
Answer:
11) to know the 20% of 70$ we need to 70÷100×20 = 14 now the sale price will ne 70-14$ = 56$
12) same 20% of 92= 92÷100×20= 18.4 $ so now original price= 92+18.4 = 110.4
13) same 40% of 30$ = 30÷100×40 = 12$ now selling price = 30-12$= 18$
Answer
90
Step-by-step explanation:
Divide 270 degrees by 3
I know that bc I had the same question on khan academy
Answer:
Rate of change of the area of the rectangle at that instant = 7 cm²/hr.
Step-by-step explanation:
Area of rectangle = Height x Width
A = hw
The height of a rectangle is increasing at a rate of 3 centimeters per hour and the width of the rectangle is decreasing at a rate of 4 centimeters per hour.

Differentiating area with respect to time,

We need to find rate of change of area when the height is 5 centimeters and the width is 9 centimeters.

Rate of change of the area of the rectangle at that instant = 7 cm²/hr.