Answer:
3^10
Step-by-step explanation:
9^7 + 3^12
Replace 9 with 3^2
(3^2)^7 + 3^12
We know that a^b^c = a^(b*c)
3^(2*7) + 3^12
3^14 +3^12
Factor out 3^12
3^12 (3^2+1)
3^12 (9+1)
3^12(10)
But we need 90 not 10
3^10 * 3^2 (10)
3^10 *9 (10)
3^10 *(90)
Hence average rate of change on the given time interval is: -4
Answer:
Amount invested at 8% rate of interest = $11000
Amount invested at 9% rate of interest = $9000
Step-by-step explanation:
Let Amy invested amount in a account with 8% simple interest = $a
Then the interest gained after one year =
=
= 0.08a
Remaining amount for the investment = $(20000 - a)
Interest earned after one year with rate of interest 9%
=
= $(1800 - 0.09a)
Total interest earned after 1 year = $1690
0.08a + (1800 - 0.09a) = 1690
1800 - 0.01a = 1690
0.01a = 110
a = $11000
Amount invested at 8% rate of interest = $11000
Amount invested at 9% rate of interest = $(20000 - 11000) = $9000
❤️ The answer is attached
achievements.
Answer:
x°=30°
Step-by-step explanation:
DE and BC arc parallel line
So DBC angle and ADE angle are equal using property of Parallel
lines that corresponding angles are equal
So ADE angle =40°
So the equation is
40°+110°+x°= 180°
150°+x°=180°
x°=180°-150°
x°=30°