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odellbeckham7171
22.10.2021 •
Mathematics
What is the value of this expression
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Ответ:
B
Step-by-step explanation:
- 8.5 × 4![\frac{1}{2}](/tpl/images/2516/9310/9cdae.png)
= - 8.5 × 4.5
= - 38.25 → B
Ответ:
remember that x/x=1 when x=x
so
make the bottoms the same
find the least common multipule
they don't have any common factors so just multiply them
ab is the common denomenator
so multiply 1/a by b/b to get b/(ab)
multiply 1/b by a/a to get a/(ab)
now we have
b/(ab)+a/(ab)=(b+a)/(ab) or (a+b)/(ab)