Answer:
9 less can be written as -9
Answer:
<h3>
The second: f(-5) = 2</h3>
Step-by-step explanation:
x = -5
-5 < -4 and if x<-4 then f(x) = - 2x - 8
so:
f(-5) = - 2(-5) - 8 = 10 - 8 = 2
The rise or an increase in altitude is represented by positive sign and a decend or decrease in altitude is represented by negative sign.
First the helicopter descended 1200 feet. So the change in altitude will be -1200 feet.
Then the helicopter rose by 800 feet. So the change in altitude will be 800 feet.
Finally the helicopter descended by 450 feet. So the change in altitude will be -450 feet.
The net change in altitude will be the sum of all the above 3 changes.
Change in altitude = -1200 + 800 - 450 = -850 feet
The negative sign indicates a descend i.e. loss in altitude. So the net change in altitude was a loss of 850 feet.
Victor writes 20 poems
<em><u>Solution:</u></em>
Given that victor writes 10 more poems than Ann
Also given that Ann writes 10 poems
To find: number of poems written by Victor
<em><u>From given information, we can frame a equation as:</u></em>
number of poems written by Victor = 10 more poems than Ann
number of poems written by Victor = 10 + number of poems written by Ann
Substituting the given , number of poems written by Ann = 10 , we get,
number of poems written by Victor = 10 + 10 = 20
Thus victor writes 20 poems
Answer:4
Step-by-step explanation:
