2x^3 - 3x² - 17x + 30 | x + 3
<span>________________________ </span>
2x^3 + 6x² _________| 2x² - 9x + 10
<span>_____-9x² - 17x ____ | </span>
<span>_____-9x² - 27x ____ | </span>
<span>_________ 10x + 30 _| </span>
<span>_________ 10x + 30 _| </span>
<span>________ _____ __0 _|
</span>
Ans = 2x² - 9x + 10
BRAINLIEST PLS!!!
AB = ==> distance between the bottom of the plank; and the wall ===> 3 ft.
C ====> 49 degrees
For letter a, to solve for AC:
AC ==> HYPOTENUSE. The angle C is the OPPOSITE side of AB.
use sine :
sin A ===> opposite/hypotenuse
Solve:
sin 49 ====> 3/AC
AC ====> 3 / sin 49
AC ====> 3.96 ft.
For letter b, to solve for BC:
We are now given with the base (3 ft.); and; the hypotenuse (3.96 ft.) so we can use the Pythagorean theorem:
a^2 + b^2 = c^2
Let:
a ===> AB
b ===> BC
c ===> AC
(AB)^2 + (BC)^2 ===> (AC)^2
3^2 + (BC)^2 ===> (3.96)^2
(BC)^2 ===> (3.96)^2 - 3^2
(BC)^2 ===> 6.6816
sqrt (BC)^2 ===> sqrt 6.6816
Answer: BC ===> 2.58 ft.
Hope that helps!!!! : )
Step-by-step explanation:
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Answer 70 = 7070
Step-by-step explanation: denotes how many times to multiply the base (70)
