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mars1129 [50]
4 years ago
11

Multiply (9 − 4i)(2 + 5i).

Mathematics
2 answers:
Verdich [7]4 years ago
7 0

Answer:

38+37i

Step-by-step explanation:

(9 − 4i)(2 + 5i)= 18+45i-8i-20i²= 18+20+37i= 38+37i

lara [203]4 years ago
5 0

Answer:

38 + 37i

Step-by-step explanation:

(9 − 4i)(2 + 5i)

FOIL

first: 9*2 = 18

Outer: 9*5i = 45i

inner: -4i * 2 = -8i

last : -4i * 5i = -20i^2 = -20(-1) = 20

Combine together

18+45i-8i +20

38 + 37i

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Hello from MrBillDoesMath!

Answer:

108 cm^2

Discussion:

The area of the logo  =

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I  = (1/2) h ( b1 + b2)            h = altitude, b1, b2 = bases

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  = (1/2) 6 ( 18)

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II  = (1/2) b h

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I will give brainliest to whoever helps me with this question. Also, if you could please explain to me how you solved it I would
Diano4ka-milaya [45]
Answer- 971.76 yd^3 (btw I used pi not 3.14)
Explanation:
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Next solve for the volume of the sphere
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The last step it to subtract the volume of the sphere from the volume of the cone
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