Answer:
2(3x-4y) (2x+4y)
Step-by-step explanation:
2•3²•x²-2⁵•y²
2(2•3²•x⅖ -2⁵•y²)
2 2
Answer:
There were 28 different choices for the six locations to apply the new ointment
Step-by-step explanation:
The order in which the location are chosen is not important, which means that we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
Two events, A and B are independent, if:
How many different choices were there for the six locations to apply the new ointment?
Six locations from a set of 8. So
There were 28 different choices for the six locations to apply the new ointment
Answer:
The radius of the cylinder is
Step-by-step explanation:
we know that
The volume of a cylinder is equal to
we have
assume
substitute the values and solve for r
Answer:
The number of adults is 87, children is twice that amount (174), and the difference (62) is children.
Step-by-step explanation:
Let a be the number of adults. So, 2a is the number of children. 323 - 3a is the number of students.
5(2a) + 7(323 - 3a) + 12a = 2348
10a + 2261 - 21a + 12a = 2348
a = 87
Answer:
x^2 +2x + 3
Step-by-step explanation:
x^3 - x -6 / x-2
Step one - FACTOR x^3:
(x-2)(x^2+2x+3) / x-2
Step two - CANCEL the common factor of x-2
x^2+2x+3