Hi! I'm Carriyana!! Glad to help you today! :)
Cole needs to work 28 hrs!!
My steps:
First I did 500/20 and got 25
Then I did 700/25
And ended up with 28
So the answer should be...
<h3>~28 hrs!~</h3>
Answer:
9
Step-by-step explanation:
a^3=72900/100
a=(729)^1/3
a=9
X= 1 number
Y= a number that is 1 less than x
Y= x-1
The sum of squares=
X^2 + (x-1)^2 = x^2 + x^2 - 2x + 1
X^2 + x^2 - 2x + 1 = 2x^2 - 2x + 1
Assuming that integers = numbers. We could try some values
When x = 0, the sum of squares = 1
When x = -1, the sum of squares = 4
When x = 1, the sum of squares = 1
If you put this into a graph, it is a parabola and we see that the minimum value hits at x = 1/2.
To check this value:
2x^2 - 2x + 1 = 2·(1/4) - 2·(1/2) + 1
2·(1/4) - 2·(1/2) + 1 = 1/2 - 1 + 1
1/2 - 1 + 1 = 1/2
When you look back at the question, it asks for 2 answers
X= 1/2
X-1 = -1/2
What is the sum of their squares?
1/4 + 1/4 = 1/2
That fits with graph too.
Answers: 1/2 and -1/2
Hope this helps!!
Answer:
4
Step-by-step explanation:
Trust me
She swims for 2.5 hours at a rate of 2 km/hr
Multiply 2.5 * 2 = 5 km
