$-4i+\left(\dfrac{1}{4}-5i\right)-\left(-\dfrac{3}{4}+8i\right)+17i\\\\=-4i+\dfrac{1}{4}-5i+\dfrac{3}{4}-8i+17i\\\\=\left(\dfrac{1}{4}+\dfrac{3}{4}\right)+(-4i-5i-8i+17i)\\\\=\dfrac{1+3}{4}+(-4-5-8+17)i\\\\=\dfrac{4}{4}+0i\\\\=1$

5 0

3 years ago

If 4 men can chop down 28 trees in one day, how many trees can 10 men chop down in one day?

erastovalidia [21]

Step-by-step explanation:

The answer is 70 because each men chops 7 trees so 10 men = 70 trees

4 0

3 years ago

Suppose you have 10 marbles, They are marked with the numbers: 1,2,3,4,5,6,7,8,9 or 10. They are placed in a jar and you reach i

sveticcg [70]

Factor of 3 = 3/10
Prime = 1/2
Even = 1/2
Evenly divisible by 13 = no chance

6 0

3 years ago

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