I believe that the expression would be t+(4+s)
Answer:
1. f(-2) = -7
2.f(7) = 11
3. f(-4) = -11
Step-by-step explanation:
1. substitute x = -2 in f(x)
The function becomes :
f(-2) = 2×(-2) - 3 = -7
2. substitute x = 7 in f(x)
the function becomes:
f(7)= 2×7 - 3 = 11
Answer:
4.25 km (See Below)
Step-by-step explanation:
<em>The question is:</em>
<em>How many kilometers did Nathan walk and jog?</em>
<u>Solution:</u>
He walked 1/4th of 5 kilometer race
He jogged 3/5th of 5 kilometers race
Rest, he ran.
We need total km he ran and jog. That is (1/4) + (3/5)th:

So, we find 17/20th of 5, which is:

So, Nathan walked and jogged 4.25 km of the race.
4d² / (d+1) when d=3;
therefore:
4(3)² / (3+1)=4(9) / 4=9
Answer:4d² / (d+1) when d=3 is equal to 9.