Answer:
k=9
Step-by-step explanation:
First find r=22/20=1.1
The sum of the first k terms formula is a1•(1-r^k)/(1-r)
a1=20 and the sum is 271.59
Now plug in these values in the formula and find k.
271.59=20(1-1.1^k)/(1-1.1)
When you simplify this equation, you will get k=ln(2.358)/ln(1.1)
k=9
Answer:
y=6,95x+35
y=6,95*5+35=69,75 for 5 hours
for 6 hours y=76,7
for 7 hours y=83.65
for 8 hours y=90,6
Step-by-step explanation:
Answer:
0.6t - 4.3s -2.6
Step-by-step explanation:
Given the expression
(-3.5t - 4s + 4.5) + (-7.1 - 0.3s + 4.1t)
Collect the like terms
= -3.5t+4.1t-4s-0.3s+4.5-7.1
= 0.6t - 4.3s -2.6
Hence the required expression is 0.6t - 4.3s -2.6
Replace x with -2
y = 12 * 3^-2
y = 12 * 1/9
y = 4/3
Answer is A
Volumn = LWH
small rectangle = 5 x 5 x 12 = 300 sq yds
Larger rectangle = 4 x 12 x 18 = 864 sq yds
