Answer:
Refer below for detailed explanation.
Step-by-step explanation:
1. ax^2+bx+c=0.
Quadratic formula:
2. x = -b+-sqrt(b^2-4ac)/2a. .
Now two equations to find the factored form through these formulas above.
Through this identifying a,b and c.
ax^2+bx+c=0.
x^2+4x-21=0
Here a=1, b=4, and c= -21
Now applying in the quadratic formula.
x=-4+-sqrt(4^2-4(1)(-21))/2(1)
Now solve it and it becomes
x=3 or x= -7.
Another example :
x^2+3x-4=0
Here a=1, b=3 and c=-4.
X=-3+-sqrt(3^2-4(1)(-4))/2(1)
Now solve it and
x= -4 and x=1
Jordan sharpened more pencils.
Step-by-step explanation:
- Step 1: Calculate number of pencils sharpened by Jordan. Total = 12
⇒ Number of pencils sharpened = 3/4 of 12 = 3/4 × 12 = 9
- Step 2: Calculate number of pencils sharpened by Laci. Total = 12
⇒ Number of pencils sharpened = 3/6 of 12 = 3/6 × 12 = 6
Answer:
second option, (u - 12 - 3b)/4
Step-by-step explanation:
isolate the "a" by bring each term to the other side, and finally div by 4
u = 12 + 4a + 3b
u - 12 = 4a + 3b
u - 12 - 3b = 4a
(u - 12 - 3b)/4 = a
but am not pretty sure
the volume of cone is =1/3 pie r² h
I think this is the formula to calculate it
Answer:
1/11
Step-by-step explanation:
12 + 8 + 2
22 / 2
1/11
There is always a pair of socks... A pair is 2. Add everything and divide it.
Hope this helps....