Answer:
x = 0 , x = 5
Step-by-step explanation:
x³ - 10x² + 25x = 0 ← factor out x from each term
x(x² - 10x + 25) = 0 ← (x² - 10x + 25) is a perfect square
x(x - 5)² = 0
Equate each factor to zero and solve for x
x = 0
(x - 5)² = 0
x - 5 = 0
x = 5 ( multiplicity of 2 )
Add -15.9 to both sides so it’ll look like 3.7x=18.87
Answer:
x = 4
y = 4
Step-by-step explanation:
the front triangle has two 40° angles (sum of all ∡'s must be 180°)
the unlabeled lower-left angle then is 40°; this angle corresponds to the angle in the other triangle labeled as 10y°
therefore, 10y = 40 so y = 4
Since opposite angles in a parallelogram are congruent then we can write:
40° + 25x° = 100° + 10(4)°
25x° = 140 - 40°
25x = 100°
x = 4
Answer:
f(x)=-2x+9
f(4)+3=?
let x equal to 4
f(4)=-2(4)+8
f(4)=-8+9=+1
f(4)=1
then add 3 to f(4)
f(4)+3=1+3
f(4)+3=4
and he need f(4)+3 so the answer is
4
that's it
