A^2 + b^2 = c^2
a^2 + 12^2 = 13^2
a^2 + 144 = 169
a^2 = 25
a = 5
Answer: The number he needs, a, is 5
Let the two numbers be represented by x and y. Then xy = 4 and x + y = -5.
Solving the first equation for y, we get y = 4/x.
Subbing 4/x for y in the second equation, we get x + 4/x = -5.
Multiplying all three terms by x removes the fractional term:
x^2 + 4 = -5x
Rearranging terms in descending powers of x: x^2 + 5x + 4 = 0
Factoring, (x+1)(x+4)=0, so that x = -1 and x= -4 are roots / solutions.
Note that (-1)(-4) = 4 and that (-1) + (-4) = -5, as required.
Two such numbers are {-1, -4).
Answer:
I have friends who do indeed add up to 2 cups per gallon! To each ... Fill the pitcher up to the gallon mark with ice or cold water, or a combo of both. ... Your homemade iced tea will have a shelf life of about 2 days – if it lasts that long! Just an observation, but it seems to me that the more sugar added, the quicker it goes bad.
Step-by-step explanation:
any options?
Step-by-step explanation:
I can't answer without and option
There are 21 quarts in 5.25 gallons.