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Deffense [45]
4 years ago
9

8. 2²=1o=0z=+The solutions areand​

Mathematics
1 answer:
natka813 [3]4 years ago
8 0

Step-by-step explanation:

the question is z²=1

taking square root on both sides

√z² = √1

the square root and the square cancel out each other

it gives

z=±1

that means either z=+1 or z=-1

so the solutions are 1 and -1

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Answer:

Yellow is correct.

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Step-by-step explanation:

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3 years ago
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Emerson is making a punch that contains 60% grape juice and the rest lemon-lime soda. The punch has 2 liters of lemon-lime soda.
valina [46]
Part A.

Consider a punch containing L liters.

60% of these that is \frac{60}{100}L=0.6L is grape juice, and the rest, 0.4 L is lemon-soda.

so, for the variable L, the total amount of punch, the total amount of grape juice is 0.6 L
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3 years ago
It take Andre 4 minutes to swim 5 laps.
Liula [17]

Answer:

a. 1.25 laps per min

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Step-by-step explanation:

5 0
3 years ago
A man on the fifth floor of a building shouts down to a person on the street. If the angle of elevation from the street to the m
AleksandrR [38]

Answer: 57 ft

Step-by-step explanation: Because drawing it up, we can make a right angled triangle with the right angle between the height of the man in the building and the distance out from the building of the man in the street, and the 35 degrees between the line connecting the man in the street with the man in the building, and the line out from the building of the man in the street. Then, tan of the 35 degree angle is = to opposite (40ft)/adjacent (to solve for). By cross multiplication, the A or adjacent (dist out from the building) = 40/0.7 (0.7 = tan of 35 degrees) so the answer is 57 ft. 

3 0
3 years ago
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stiv31 [10]

Answer:

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So the ratio is  

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Hope I helped,

-Adrian Velez

Step-by-step explanation:

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