Answer:
Each kids weight in a chart
Step-by-step explanation:
I chose this because its the most organized way of doing that
82 is the hypotenuse.
Follow the c² - b² = a² formula, in which c is the hypotenuse.
Plug in the numbers
(82)² - (80)² = (a)²
Simplify.
82 x 82 = 6724
80 x 80 = 6400
6742 - 6400 = a²
Subtract:
a² = 6724 - 6400
a² = 342
Finally, root both sides
√a² = √342
a = √342
a = 18.49
You're closest answer through rounding is (A) 18.
hope this helps
When using scientific notation, you only want one number to be in front of the decimal place. If you have to make the number smaller, then the 10^nth power will be positive. If you have to make the number bigger, then 10^nth power will be negative. Example:
0.54 --> 5.4 * 10^-1
35 --> 3.5 * 10^1
The value of n depends on how many spaces the decimal point needs to be moved. For your question, putting 23 in scientific notation would look like this:
23 --> 2.3 * 10^1
Answer: y=-(3x-2)= -3x+2
The intercept with y is 2
The intercept with x is 2/3
