Answer:
x=-2
Step-by-step explanation:
x= -b/2a
b=4
a=1
x=-4/2*1
x=-4/2
x=-2
Make all a and constant number in different side
10-7=16z-7z+2z
3=11z
z=3/11
Answer:
a)yes
Step-by-step explanation:
5 times 5 is 25
8 times 5 is 40
A=Pe^(rt)
P = 800g
t = 8 years
A = 450g
r = This is what we will try and find to start with
450=800e^(r*8)
After running the math through a calculator, we end with r = -0.07192
Now we just re-input this information into our equation: A=800e^(-0.07192*16)
A=800e^(1.15072)
Now we will re-write the equation using the negative exponent rule:
A = 800 1/e^1.15072
Combine right side:
A = 800/e^1.15072
Then do the math:
A = 253.12709836......
That will give us A = 253 (rounded to the whole number)
I hope this helps! :)
Answer:
x=2 f(x)=5-x
o≤x≤3 f(x)=x
2<x<3 f(x)=1
3<x≤5 f(x)=5-x
Step-by-step explanation: