Answer:
8
Step-by-step explanation:
The condition for the discriminant b² - 4ac is
If b² - 4ac > 0 then roots are real, irrational and unequal
If b² - 4ac > 0 and a perfect square, roots are real, rational and unequal.
Thus
b² - 4ac = 8
<h3>
Answer: Coefficient</h3>
The coefficient is the number just to the left of, or in front of, the variable. It's being multiplied by the variable
Eg: 7x = 7 times x
Answer:
2.4747996 * 10^1
Step-by-step explanation:
When working in scientific notation, (a * 10^b) * (c*10^d)
Multiply a*c then add 10 ^(b+d)
Then check that the product of ac is between 1 and 10, if not then we need to adjust so that it is
(7.93205×10^8) • (3.12×10^-8)
(7.93205) • (3.12) =24.747996
10^(8-8) = 10^0
24.747996 needs to be adjusted to be between 1 and less than 10
we move the decimal 1 to the left so we add 1 to the exponent
2.4747996 * 10^0+1
2.4747996 * 10^1
Answer:
1/2*6(12+x)=12*x
1/2*(72+6)=12x
36+3x=12x
36=9x
4=x
Step-by-step explanation:
Check that x=4
1/2*6(4+12)=12*4
1/2*(24+72)=48
1/2(96)=48
48=48
So x=4 is the correct answer
