Answer: 51
Step-by-step explanation:
let x be the number.
(70%)x = 42
0.7 x = 42
x = 60
we check 15% x 60 = 0.15 x 60 = 9, which is true.
85% of that number = 85% x 60 = 0.85 x 60 = 51.
6+(-4) is almost like saying 6-4 which is 2
Same for 6+(-6) is just like 6-6 which is 0
Answer:
22.5 years to the nearest tenth.
Step-by-step explanation:
The equation is
6000 = 4000(1 + 0.018/12)^12t where t = the number of years
(1 + 0.018/12)^12t = 1.5
1.0015^12t = 1.5
Taking logs:
12t log 1.0015 = log 1.5
12t = log 1.5 / log 1.0015
12t = 270.51
t = 22.54 years.
To vertically strech or shrink a function, multily the whole function by the factor taht you want to strech or shrink it by
to horizontally strech or shrink a function, multiply every x by the factor you want to strech or shrink it by
shrinks mean multiplying by a value greater than -1 and less than 1
stetch means multiply by a value greater than 1 or less than -1
first one
horizontal shrink
muliply every x by a fraction
so that is A
2nd one
vertical strech
multiply whole function by a value greater than 1 or less than -1
D is the answer
3rd one
horizontal strech
multiply every x by a value greater than 1 or less than -1
C is the answer
4th one
vertical shrink
multiply whole function by a value greater than -1 and less than 1
B is the answer
