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Citrus2011 [14]
3 years ago
13

Multiply and simplify the product. 2i(4 – 5i) Select the product. –2i 2i –10 + 8i 10 + 8i

Mathematics
2 answers:
Lena [83]3 years ago
6 0

Answer:

10 + 8i

Step-by-step explanation:

noting that i² = - 1

Given

2i(4 - 5i) ← distribute the parenthesis

= 8i - 10i² = 8i - 10(- 1) = 10 + 8i

shusha [124]3 years ago
3 0

Answer:

D, 10+8i

Step-by-step explanation:

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The faces of a number cube are labeled 1 through 6. If the number cube is rolled 72 times, which is closest to the number of tim
insens350 [35]

Answer:

24 times

Step-by-step explanation:

P(5 or 6) = 2/6

2/6 = x/72

cross-multiply:

6x = 144

x = 24

4 0
2 years ago
We have 50 video gamers who share information about their favorite games. 20 people say that Borderlands II is their favorite ga
stealth61 [152]

Answer:

2 people

Step-by-step explanation:

Total number of people (n) = 50

Borderlands II (B) = 20

Fortnite (F) = 33

Minecraft (M) = 19

Borderlands and Fortnite (B&F) = 15

Borderlands and Minecraft (B&M)= 10

All games (B&M&F) = 5

The number of people that claimed more than one game as their favorite (X) is given by:

X=M+B+F-n\\X=19+20+33-50\\X=22\ people

Those people can be divided in B&F only, B&M only, M&F only and B&M&F:

X=(B\&M-B\&M\&F)+(B\&F-B\&M\&F)+(M\&F-B\&M\&F)+B\&M\&F\\X=B\&M+B\&F+M\&F-2*B\&M\&F\\22=10+15+M\&F-2*5\\M\&F=7\ people

7 people claimed that Minecraft and Fortnite were their favorites however, 5 of those people claimed all of the games as their favorite. Therefore, only 2 people declared Minecraft and Fortnite (exclusively) as their favorites.

7 0
3 years ago
Read 2 more answers
What is the answer to the equation 7/9+1/6+3/5
Andrej [43]

Answer:

Step-by-step explanation:

7/9+1/6+3/5

Least common factor is 90

Multiply

70/90+15/90+54/90

Is 139/90 which is. 1 49/90

6 0
2 years ago
GIVING BRAINLIEST!! PLZ HELP ME I HAVE TO FINISH BY SIX O CLOCK!!
JulsSmile [24]
1/2 = 18 cut
Cut= 1/36
So if victor rides for time t+ 1/36
Alex rides for t
D= 18 (t + 1/36) = 24 t
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T = 1/12 hour = 5 minutes
4 0
3 years ago
Ashley earned $20 babysitting in january. In February she earned $32. What is the percent of change in her earnings?
VARVARA [1.3K]

Answer:

Step-by-step explanation: her precent change is 12% because 32 - 20 = 12 and since 12 is a whole number that would make it 12%

3 0
3 years ago
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