2 x 9 - 3 x 5 + 4
In math/s we have the rule called BEDMAS
(a.k.a. BODMAS, BIDMAS, PEDMAS, etc)
Brackets
Exponent
Division
Multiplication
Addition
Subtraction
We go from top to bottom of the list of rules for every math equation. There’s just one exception, addition and subtraction are treated equally, and so when we have an equation with just addition and subtraction, we work left to right
2 x 9 - 3 x 5 + 4
We have no brackets and no exponents, and there’s nothing to divide.
So, we do multiplication
18 - 15 + 4
If you remember, addition and subtraction are treated the same. Therefore, we work left to right.
18 - 15 + 4 = 7
You can type your question into goorgle or a calculator, and you’ll get 7!
Answer:
B
Step-by-step explanation:
Answer:
21.5%
Step-by-step explanation:
The first step is to find the area of the square, and then the area of the circles inside. The area of the square is the side length squared, or in this case 2304. Since the circles are inscribed in the square, they are touching the borders, and two of them perfectly cross to the other side. Therefore, the diameter of one of the circles is half of the side length of the square, and the radius is a quarter. Thus, the area of one of the circles is 
, which when multiplied by the 4 circles yields about 1809.557. Subtracting this from the total area of the square, you get 494.443, which when divided by the total area of the square gives approximately 21.5%. Hope this helps!
Answer:
Step-by-step explanation:
=0.000002x10−3
