An estimate always makes sense.
-- I have $10 in my pocket, this pump says $2.21 a gallon, and my car has been getting about 29 mpg. How many miles can I buy ?
-- I'm responsible for the reading two weeks from next Saturday. I'm about 1/3 of the way through learning 190 lines. How many lines must I average learning each day from now til then ?
-- I'm 32 miles from home and rush hour is srarting to build. My wife wants to know when I'll be there. What shall I tell her ?
If A = {2, 3, 4, 5} B = {4, 5, 6, 7} C = {6, 7, 8, 9} D = {8, 9, 10, 11}, find (A ∪ B) ∪ C
Iteru [2.4K]
Answer:
(AUB)UC=2,3,4,5,6,7,8,9
put all these numbers inside curly bracket
Step-by-step explanation:
<span> x^2 +(x-4)^2 =20^2</span>
<span> x^2 +(x-4)^2 =400</span>
x^2 +(x-4)^2 -400=0
factor:
2x^2-8x-384=0
Factor the 2 out of 2X^2
2(x-16) (x+12) =0
<span> Divide both sides by 2</span>
(x-16) (x+12) =0
X=16 , x=-12
<span> Number cannot be negative so x=16</span>
Answer:
six and one over twelve
Step-by-step explanation:
1/4 + 5 5/6=1/4+35/6 = 6 1/12
