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Lana71 [14]
3 years ago
10

Express the following expression in the form of a + bi: (39 + 34i) + (76 + 89i) - (47 +26i).

Mathematics
2 answers:
nika2105 [10]3 years ago
8 0

Answer:

68+97i

Step-by-step explanation:

(39 + 34i) + (76 + 89i) - (47 +26i).

Distribute the minus sign

(39 + 34i) + (76 + 89i) + (-47 -26i)

Combine like terms

(39+76-47)+(34i+89i-26i)

68+97i

andre [41]3 years ago
3 0

Answer:

68+97i

Step-by-step explanation:

work shown and pictured

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The cooking club made some pies to sell during lunch to make money to go on a field trip. The cafeteria helped by donating two p
Angelina_Jolie [31]

Answer:

They made 7 pies

Step-by-step explanation:

2 x 5 = 10

45 - 10 = 35

35 divided by 5 = 7  

Hopefully this helps you :)

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3 0
3 years ago
Two electricians are assigned to work on a remote control wiring job. One electrician works 8 1/2 hours each day, and the other
klasskru [66]
8.5 • 5 = 42.5
2.5 • 5 = 12.5
42.5 - 12.5 = 30
The first electrician worked 30 hours longer than the second electrician.
6 0
3 years ago
Distributive property of 8 x 31
solong [7]
Your answer would be 248
7 0
3 years ago
The difference between eight times a number and six more than three times the number. Please help find the equation and simplify
Rainbow [258]

Answer: x>1.2

Step-by-step explanation:

Let a number is x.

Hence,

8x-6 > 3x\\\\8x-6-3x > 3x-3x\\\\5x-6 > 0\\\\5x-6+6 > 0+6\\\\5x > 6\\

Divide both parts of the equation by 5:

x > 1.2

8 0
2 years ago
The coach recorded how fast his runners ran 1 mile. Emmett ran a mile in 9.73 minutes Kate ran a mile in 10.87 minutes how many
igor_vitrenko [27]

Complete Question

The coach recorded how fast his runners ran 1 mile. Emmett ran a mile in 9.73 minutes, Kate ran a mile in 10.87 minutes, and Rubin ran a mile in 8.46 minutes. How many more minutes did Emmett run than Robin?

a. 1.37 minutes

b. 1.27 minutes

c. 2.27 minutes

d. 1.27 seconds

Answer:

1.27 minutes

Step-by-step explanation:

Emmett ran a mile in 9.73 minutes

Kate ran a mile in 10.87 minutes

Rubin ran a mile in 8.46 minutes.

How many more minutes did Emmett run than Robin?

This is calculated as:

Number of minutes Emmett ran - Number of minutes Rubin ran

= 9.73 minute - 8.46 minutes

= 1.27 minutes

Option b is correct

5 0
3 years ago
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