If you divide the 2 in 3 you get .6 and if you divide 2 in 5 ou get ,4 now add them you and get 1 now add that 1 to 30 your answer should be 31
I’d use the app Socratic, the apps always factors the quadratic formula and it gives you the steps on how it done.
1. X^2+7x+12=0
Identify a,b, and c. Which x^2 is a, 7 is b and c is 12.
Find two numbers that multiply together to equal c which is 12 which is 3•4
And add two numbers that equal to b which is 7 which is 3+4
= (x+3)(x+4)=0
Set each factor to zero
X+3=0
= -3
X+4=0
=-4
" 1 / 4 " means " 1 divided by 4 ".
Do that division, and you get " 0.25 " .
To change any number to percent, multiply the number by 100 .
The easy way to do that is to move the decimal point 2 places that way ==> .
When you multiply 0.25 by 100, you find that it's <em>25%</em> .
M^1/3 divided by m^1/5 = m^2/15<span>
m^1/5 divided by m^1/3 = 1/ </span>m^2/15<span>
m^1/3*m^1/5 = m^8/15
(m^1/3)^1/5 = m^1/15
(m^1/3m^1/5)^0 =1</span>
Answer:
I'm sorry, I can help only with this one x = 20°
Step-by-step explanation:
2x + 5° + 4x + 15° + 2x = 180°
8x = 180° - 5° - 15°
8x = 160°|÷8
x = 20°
