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n200080 [17]
3 years ago
11

Anyone please like explain.

Mathematics
1 answer:
AlexFokin [52]3 years ago
4 0

Answer:

i cant see it can you get a batter pic

Step-by-step explanation:

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8i-(12-4i)+7√-9<br><br> show work please
Tanya [424]

Answer:

33i - 12

Step-by-step explanation:

8i - (12 - 4i) + 7 \sqrt{ - 9}   \\  = 8i - 12  + 4i + 7 \sqrt{9  \times ( - 1)}  \\ = 12i - 12 + 7 \times 3 \sqrt{ - 1}  \\ = 12i - 12 + 21i  \:  \: ( \because  \sqrt{ - 1} = i)\\  = 12i + 21i - 12 \\   \therefore \red{ \bold{8i - (12 - 4i) + 7 \sqrt{ - 9} }=  \purple{ \bold{33i - 12}}}

5 0
4 years ago
Write the equation of the circle graphed below
Papessa [141]

Answer:

(x +2)^2 + (y +2)^2 = .5625

Step-by-step explanation:

(x - h)^2 + (y - k)^2 = r^2

(x + 2)^2 + (y + 2)^2 = .75^2

5 0
3 years ago
Mrs. Pollo was making pizza. She used 3/8 of a cup of olives to make 1 pizza. At this rate, what amount of olives would she use
-BARSIC- [3]
Answer is 3/16 cup
She used 3/8 cup of olives on one pizza
She is going to use 1/2 of 3/8 cup for 1/2 pizza
1/2 of 3/8 = x
Multiply (1/2)(3/8) =
3/16 cup of olives

4 0
2 years ago
Read 2 more answers
How far did Natalie run in 40 minutes
VladimirAG [237]
More context please! I hope you find the answers you need:)
4 0
3 years ago
What is x in 2x − 3 + 4x = 21
Serggg [28]

Answer: x = 4

Step-by-step explanation:

2x - 3 + 4x = 21

6x - 3 = 21

6x - 3 (+3)  = 21 (+3)

6x = 24

24/6

x = 4

7 0
2 years ago
Read 2 more answers
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