Answer:
d
Step-by-step explanation:
lucky guess
Answer:
f(x)=3x-5
g(x)=-6x²+6x+2
f(x)×g(x)
=(3x-5)(-6x²+6x+2)( use distributive property)
=(3x×-6x²)+(3x×6x)+(3x×2)+(-5×-6x²)+(-5×6x)+(-5×2)
=(-18x³)+(18x²)+6x+30x²-30x-10
=-18x³+18x²+6x-30x+30x²-10
=-18x³+18x²-24x+30x²-10
=-18x³+18x²+30x²-10
=-18x³+48x²-10---------------you may write this answer
Hope it's was clear,
please pick me brainliest
Answer:
The length of the unknown sides of the triangles are as follows:
CD = 10√2
AC = 10√2
BC = 10
AB = 10
ΔACD is a right angle triangle. Therefore, Pythagoras theorem can be used to find the sides of the triangle.
c² = a² + b²
where
c = hypotenuse side = AD = 20
a and b are the other 2 legs
lets use trigonometric ratio to find CD,
cos 45 = adjacent / hypotenuse
cos 45 = CD / 20
CD = 1 / √2 × 20
CD = 20 / √2 = 20√2 / 2 = 10√2
20² - (10√2)² = AC²
400 - 100(2) = AC²
AC² = 200
AC = √200 = 10√2
ΔABC is a right angle triangle too. Therefore,
AB² + BC² = AC²
Using trigonometric ratio,
cos 45 = BC / 10√2
BC = 10√2 × cos 45
BC = 10√2 × 1 / √2
BC = 10√2 / √2 = 10
(10√2)² - 10² = AB²
200 - 100 = AB²
AB² = 100
AB = 10
Step-by-step explanation:
P=2(L+W)
if given one side and the perimiter
(P/2)-L=W
(P/2)-W=L
Answer:
The final answer is 16.
Gd luck with your work! :)
