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:
f(x)=2000-8x
Step-by-step explanation:
2000 is initial amount that gets subtracted
8x is the amount of gallons being siphoned out, where x is t, or minutes.
Answer:
Step-by-step explanation: 58 - 3 = 55.
Answer:
Q1.
a. three hundred sixty-four thousand eight hundred twenty-five
b. one hundred forty-three
c. nine hundred four thousand three hundred six
d. seven million twenty
e. fifty-six million thirty thousand one hundred twenty-three
f. six thousand twenty-four
g. two hundred four
h. six hundred seventy-four thousand one
i. nine hundred sixty-two thousand three hundred forty-two
Q2.
a. 5000000
b. 1000004
c. 60000203
d. 1311
e. 286
f. 34503271
g. 844536
h. 3748
i. 125064
j. 4605231
Answer:
Step-by-step explanation:
Luther is incorrect. 2 x 2= 4 x 2 = 8 (not 9)
1 2 3
