What is the product of 1 2/3 and - 3 1/2

Step-by-step explanation:

1 2/3 can be written as 5/3 and -3 1/2 can be written as -7/2

now,

→ 5/3×-7/2

→ 5 × (-7) / 3 × 2

→ -35/6 ans.

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-62

Step-by-step explanation:

12/3 * -31/2

12÷3 =4/1

4/1*-31/2

4÷2=2

-31*2=-62

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.