Answer:
y=90(0.5)^x
The y-intercept is (0,90), so when x=0, y should be 90.
By replacing x=0 in all equations you get;
1)
y=90(2)^0 =90 accepted
2)
y=2(90)^0 =2 rejected
3)
y=0.5(90)^0 =0.5 rejected
4)
y=90(0.5)^0 =90 accepted
Since this is an exponential decrease,
y=90(2)^x is rejected.
Step-by-step explanation:
++++5
+++++++_2
1=false
true
false
false
Point c is the point hope this helps
Answer:
16-degree decrease
Step-by-step explanation:
Take the final temperature of -12 and subtract the initial temperature of 4
-12 - 4
-16
The change in temperature is 16 degrees
The minus sign tells us it was a decrease
Answer:
D: 10a+10 ; 5(2a+2)
Step-by-step explanation:
25+3(a-5)+7a
= 25+3a-15+7a
=10+10a