Answer:
D.
Step-by-step explanation:
The cancels out to become x:
Split the
Put the cube root of y and cube root of 9 together:
Answer:
47%
Step-by-step explanation:
Total number of males=14
Total number of females =16
Total number of students =16+14
=30
Probability of a selecting a male student
=47%
Lowest common multiply is 15/24
Answer:
.
Step-by-step explanation:
Answer:
2010
Step-by-step explanation:
If the numbers are x and y, you have ...
x +y = 97
x -y = 37
Adding these two equations gives ...
2x = 134
x = 67
y = 67 -37 = 30
The product is then ...
xy = (67)(30) = 2010
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<em>Alternate solution</em>
There is no need to find the actual numbers. We can go directly to their product.
(x+y)² = x² +2xy +y² = 97² = 9409
(x-y)² = x² -2xy +y² = 37² = 1369
Subtracting the second equation from the first gives ...
4xy = 9409 -1369 = 8040
xy = 8040/4 = 2010
Of course the difference of squares can be factored, so we could compute ...
(97² -37²)/4 = (97 +37)(97 -37)/4 = 134(60)/4 = 134(15) = 2010