<u>answer:</u>
<u>work:</u>
| distribute into the parentheses
| cancel out the + 4 and -4 because they equal to 0
| divide by
| final answer
hope this helps! correct me if anything is wrong ❤ from peachimin
Answer: B, $78
Step-by-step explanation:
If the tip is 20% of the dinner cost, then we have to first find what is 20% of 65.
20% x 65 = 13. So the tip for the dinner is 13 dollars.
Now we have to add it to the original dinner cost.
65 + 13 = 78.
Therefore, the total cost of their meal is 78 dollars. So the answer is B, $78!
in scientific notation, we leave only 1 digit to left of the decimal point.
now
35681000000 is really the same as 35681000000.0
so we can say the zero is way over there on the right-side, and we have to move it to the left, right in front of the "3", between "3" and "5", so the "3" is the only digit to the left of the decimal point.
to do that, we'll be moving it hmmmmm 10 slots over, therefore
35681000000
3.5681000000 x 10¹⁰
or
3.5681 x 10¹⁰ <---- using only significant digits.
Answer:
The area of the octagon is <u>505.76 </u>
Step-by-step explanation:
In this question, we are tasked with calculating the area of an octagon given the values of the apothem and the perimeter
Mathematically, the area can be calculated using the formula below;
Area = 1/2 × apothem × perimeter
where according to the question, the apothem = 11.6 inches and the perimeter = 87.2 inches
Plugging these value into the equation given above, we have
Area = 1/2 × 11.6 × 87.2 = 505.76
Use the pythagoras theorem
And the answer will be 36.