Answer:
81 900 000 000 000 is 8.19 × 10¹³
Step-by-step explanation:
Write the first number 8.
Add a decimal point after it: 8.
Now count the number of digits after 8. There are 13 digits.
So, in standard form: 81 900 000 000 000 is 8.19 × 10¹³
I think the answer is 400 square centimetres
Answer:
y = 5.543
Step-by-step explanation:
Your y = 7(1 - 0.021)^11 is evaluated as follows:
y = 7(0.979)^11
y = 7(0.7918
y = 5.543
The answer would be y = 9
First you need to multiply the cost of the vases times 2. Then you need to add the sales tax to the cost of both vases. The total would end up being $8.52. Next you subtract 8.52 from 28.50. You would get 19.98. Then lastly you it by three. So the cost of 1 package of glass beads is $6.66.
