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Marrrta [24]
4 years ago
7

Simplify 9i(2+3i)

Mathematics
2 answers:
Basile [38]4 years ago
8 0

Answer:

9i(2+3i) = -27+18i

Step-by-step explanation:

Distribute to get → 9i·2+9i(3i)

Multiply 2 and 9 → 18i+9i(3i)

Simplify → 18i+27i²

Simplify → 18i-27

Reorder → -27+18i

viktelen [127]4 years ago
3 0
Simplify 9i(2+3i):
9i×2=18i
9i×3i=27i

18i+27i
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A school has a goal of getting at least 2000 box tops. They have 872 so far. They have 8 days left to get it. At least how many
andrew11 [14]

Answer:

141 box tops per day

Step-by-step explanation:

Ok so you start by subtracting 2,000 and 872 you then get 1,128 and because you have to meet the goal in 8 days you divide 1,128 by 8 and the answer you should get is 141!!

I hope this helped let me know if I’m incorrect

Good luck!

7 0
3 years ago
The figure is made of rectangular prisms what is the volume can someone please explain
joja [24]
It is 225. Because you do the volume of one rectangular prism the equation is 15 x 3 x 3 which gives you 135. Then you do the volume of the other rectangular prism the equation is 10 x 3 x 3 which gives you 60. Then you add 135 + 90 that then gives you the total volume which is 225.
4 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP!!!!! 8TH GRADE MATH IDKKK!!! 3(7 + 2x) + 3 = 3(5 + x) − 9(x + 1)
alexdok [17]
Remove all the brackets
3(7 + 2x) + 3 = 3(5 + x) − 9(x + 1)
21 + 6x + 3 = 15 + 3x - 9x - 9 Collect like terms.
24 + 6x = 6 - 6x Add 6x to both sides.
24 + 6x + 6x = 6 Subtract 24 from both sides
12x = 6 - 24
12x = - 18 Divide by 12
x = - 18 /12
x = - 1.5
Check
3(7 + 2*(-1.5)) + 3 = ? 3(5 + -(1.5) - 9(-1.5 + 1)
3(7 - 3) + 3 =? 3(3.5) - 9*(-1/2)
3*4 + 3 =? 10.5 + 4.5
12 + 3 =? 15 And it checks.
6 0
4 years ago
858 is divisible by 2,3,5 or 10?
Andru [333]

Answer:

2

Step-by-step explanation:

If it ends in an even number, it is divisible by an even number

Hope this helps!!

6 0
3 years ago
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Whattttttttttttttttttttttttttttt??
Valentin [98]

Answer:

12730000

Step-by-step explanation:

4.108 x 10^7 = 41080000

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5 0
3 years ago
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