Answer:
57 1/2 min
Step-by-step explanation:
Do 20 times two which is 40 then do 25 times two and you get 50 then find the half of 25 which is 7.3 min then add 50 and 7.3 and get 57 1/2 min
Answer:
f(g(1))=1/3
g(f(2))=1
Step-by-step explanation:
For f(g(1)) plug the 1 in the x in thefunction of g, and plug g in the x in the function f.
Do the same thing for g(f(2)) using the number 2
1600<2570-125.5x<2000 subtract 2570 from all terms...
-970<-125.5x<-570 divide all terms by -125.5 (and reverse signs because of division by a negative!)
7.73>x>4.54 and x is months since January, and since months can only be integers...
x=[5,7]
So January + 5, 6, and 7 respectively are the three months that satisfy the equation...
June, July, and August.
Answer:
do you mean 50/360? if 50/360 it is 50 degrees
if 50/350 it is about 50/350*360 = 51.429 degrees
Answer:
c) -20x^2+14x+12
all real numbers
Step-by-step explanation:
So (fg)(x)=f(x)g(x)=(-4x-2)(5x-6).
Need find the expression in standard form we need to use foil:
First: (-4x)(5x)=-20x^2
Outer: (-4x)(-6)=24x
Inner: (-2)(5x)=-10x
Last: (-2)(-6)=12
--------------------------Add like terms:
-20x^2+14x+12
Polynomials have domain all real numbers.
There are no restrictions on what x can be. For every number you plug in, you will get a number back.
