The area of a square is just side times side. So 3 * 3 = 9.
There are 4 half-circles which is the same as 2 full circles. Area of a circle is pi * the radius squared or
.
So we do 2(pi * (1.5)²) >> 2(2.25pi) = 4.5pi.
Now we add our two areas together. So the area of the whole thing is represented by the equation 4.5pi + 9. Plug this into a calculator to get your accurate measurement.
4.5pi + 9 ≈
23.137 m²
First off, you need to have your ys on the same side. Here's how to do it:
4y + 15 = -5y + 9
4y + 5y = 9 - 15 (once a number goes to the other side, it changes its sign)
9y = -6
y = -6/9
y = -2/3
The correct answer is B. -2/3
Answer:
´The variance is 10000
Step-by-step explanation:
The variance is defined as the square of standard deviation, consequently it is as follows:
σ^2=
σ^2=10000
Answer:
First one is wrong. x should be 16.
Second one is not completely visible, so cannot say.
Step-by-step explanation:
In the last step, the divison by 4 yields:
x/16 = 1, so x = 16
Answer:
0,00027 grams!
Step-by-step explanation:
This is a scientific notation problem.
When a number is followed by a , it means that said number has one zero at the beginning.
In this case, the number is followed by , so that means that 2.7 has four zeros at the beginning. So, 2.7x grams is equal to 0,00027 grams! (always the comma goes after the first zero).