Answer:
Step-by-step explanation:
Total number is 20.
<u>Distribution is:</u>
- Art + Biology = 1
- Biology = 1
- Neither = 7
The rest = 20 - 9 = 11, the Art students
Total number of Art students becomes 12
<u>The probability would be then:</u>
Answer:
x = 3
Step-by-step explanation:
Given
x - 4 = - 2
Multiply through by 3 to clear the fraction
2x - 12 = - 6 ( add 12 to both sides )
2x = 6 ( divide both sides by 2 )
x = 3
Answer:
0.05 cm
Step-by-step explanation:
The least-significant digit in the given measurement is the one in the 0.1 cm number place. The "greatest possible error" is half the value of that number place, so is ...
(0.1 cm)/2 = 0.05 cm . . . . "greatest possible error"
_____
For questions of this sort, we make the (not always practical) assumption that the measurement is rounded perfectly to the nearest 0.1 cm.
Answer:
The cross product property
Step-by-step explanation:
The cross product property also known as cross multiplication is a method in math that is most of the time used in solving problems involving ratios usually in a big X form across the equal sign between two ratios.
It is done by multiplying the numerator of the left ratio by the denominator of the right with an equal to the multiplication of the numerator of the right ratio by the denominator of the left.
You FOIL (First, Outer, Inner, Last)
If you FOIL, you should get 2y^2 - 4y + 4y^2 - 8y +12y -24
