Answer:
Step-by-step explanation:
f(x)=x+5 and g(x)=2x
(f∘g)(x)=f(g(x))=f(2x)=5+(2x)=2x+5
(g∘f)(x)=g(f(x))=g(x+5)=2(x+5)=2x+10
(f∘g)(x)=2x+5
(g∘f)(x)=2x+10
Answer:37.2 sec
Step-by-step explanation:
Given
Joel takes 81 sec for 14 mile long track
speed of joel mi/min=10.37 mi/min
Jason takes 69 sec for 14 mi track
so jason speed is
if both starts from same spot in opposite direction then
where x is distance covered by Joel
then x=6.44 miles
therefore time required
Answer:
Step four
Step-by-step explanation:
When solving equations you have to flip the sign when you divide negative integers.
It's answer a y=x^2
multiple each number twice
4•4 16
2•2 4
3•3 9
Isolate the x. Subtract 20x from both sides, and add 15 to both sides
-5x (-20x) - 15 (+15) > 10 (+15) + 20x (-20x)
-5x - 20x > 10 + 15
Simplify. Combine like terms
-25x > 25
Isolate the x. Divide -25 from both sides. Note that when you are dividing by a negative number, flip the sign.
(-25x)/-25 > (25)/-25
x > 25/-25
x < -1
x < -1 is your answer
hope this helps