First you must have the quadratic equal to zero. In order to do this you must subtract 7 to both sides
x^2 + 20x + (100 - 7) = 7 - 7
x^2 + 20x + 93 = 0
Now you must find two numbers who's sum equals 20 and their multiplication equal 93
Are there any? NO!
This means that you have to use the formula:
In this case:
a = 1
b = 20
c = 93
^^^We must simplify √28
√28 = 2√7
so...
simplify further:
-10 + √7
or
-10 - √7
***plus/minus = ±
Hope this helped!
~Just a girl in love with Shawn Mendes
Answer:
C.
Step-by-step explanation:
-3 7/8 rounds down to -4
4.63 rounds up to 5
-4 x 6 + 5
-24 + 5
-19
her answer (-19.14) also rounds to -19
So yes, it is reasonable and the correct response is C.
The answers is 1 becuase 3/3=1 and 4/4=1
7.4 kg = 74hg = 740dag = 7400g = 74,000 dg = 740,000 cg = 7,400,000 mg
hectograms dekagrams grams decigrams centigrams milligrams
Now which equivalent were you looking for?
Answer:
7/3 =x
Step-by-step explanation:
2x+3=5x-4
Subtract 2x from each side
2x-2x+3=5x-2x-4
3 = 3x -4
Add 4 to each side
3+4 = 3x
7 = 3x
Divide by 3
7/3 =3x/3
7/3 =x
