Answer:
10^4 = 10 x 10 x 10 x 10 = 10,000. 2 x 10,000 = 20,000. 7^4 = 7 x 7 x 7 x 7 = 2,401. 20,000 - 2,401 = 17,599.
Step-by-step explanation:
hope this helps
Answer:
$1,080
Step-by-step explanation:
To solve, we can make a proportion
14 lessons are $210 and 72 lessons are $x
14/210=72/x
Cross multiply
14*x=210*72
14x=15120
To solve for x, we need to get x by itself. Since x is being multiplied by 14, divide both sides by 14.
14x/14=15120/14
x=1080
So, 72 lessons will cost $1,080
Answer:
see i have posted my pic
Step-by-step explanation:
please mark me as brainliest
Answer:
Find out the what is the eighth term in the arithmetic sequence defined by the explicit formula.

To prove
As given the explicit formula for the arithmetic sequence .

Put n = 8



Therefore the eighth term in the arithmetic sequence is 23 .