Answer:
B. {x| x > 2 or x < -4}
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Step-by-step explanation:
Given
Required
Solve
Start by dividing both sides by 5
Find critical point of the inequality by changing the inequality to equality
Split the above expression
Make x the subject of formula in both
Check the intervals in between the critical points
Set: --- This works in the inequality
Set: --- This doesn't work in the inequality
Set: --- This doesn't works in the inequality
Set: --- This works in the inequality
<em>Hence, the solution is: {x| x > 2 or x < -4}</em>
So if you didn't know x^2 + y^2 = r^2 is the equation of a circle where the center is at the origin. It is usually written as (x-h)^2 + (y-k)^2 = r^2. So if we are moving it to the left by 8 units we write:
(x+8)^2 + (y-k)^2 = 16
Next we move it 3 units down, so we get:
(x+8)^2 + (y+3)^2 = 16
That is your answer. Hope this helps! :D
2/1 a reciprocal is just the fraction flipped
1 divided by 3
Turn fraction into decimal
Since it is repeating, and it's a 3, you don't need to round it up
The rule is 5+ = round up while 4- = round down.
1)
use Pythagoras, so that
the square root if 224 is 14.96662955
so roughly, she needs 15ft for the remaining side.
15+10+18=43
so the answer is c.
2)
first calculate the length through the pond
36^2+49^2=3697
square root of 3697 =60.80296045
36+49=85
85-60.80296045=24.19703955
so he saves about 24.2m