Answer:
0.000145794
Step-by-step explanation:
Simply calculate with a calculator.
B. 13
work:
9^1/2+√25+8÷2+3²
(3²)^1/2+5-4+9
3+5-4+9
C.4/5
work
1/2*3/5*(2^3-6)+1/5
1/2*3/5*(8-6)+1/5
1/2*3/5*2+1/5
3/5+1/5
12x+4-16x = 0
-4x + 4 = 0
-4x = 0-4
x = -4/-4
x= 1
-3x^4 -9x^3+ 15x^2
-3x^2 ( x^2 + 3x -5)
if you use quadratic formula (see image)
~~~~~~~~~~~~~~~~~~~~~~
10x^3 -35x^2 +6x -21
5x2(2x-7) +3(2x-7)
(5 + 3) (2x-7)
Answer: C all real numbers