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Rashid [163]
2 years ago
8

. HELP HELP HELP PLSSSSS

Mathematics
1 answer:
baherus [9]2 years ago
3 0

Answer:

the answer is D, (-2,4)

Step-by-step explanation:

Hope this helps!❆

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Find [4(cos15° + isin15°)]^3 and express it in a + bi form.
AleksandrR [38]

Answer:

see explanation

Step-by-step explanation:

Using De Moivre's theorem

Given

[ 4(cos15° + isin15° ) ]³, then

= 4³ [ cos(3 × 15°) + isin(3 × 15°) ]

= 64 (cos45° + isin45° )

= 64 (\frac{\sqrt{2} }{2} + \frac{\sqrt{2} }{2} i )

= 64 (\frac{\sqrt{2} }{2} (1 + i) )

= 32\sqrt{2} (1 + i)

= 32\sqrt{2} + 32\sqrt{2} i

5 0
3 years ago
X=8,2x+y=12 solve by substitution show work
son4ous [18]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Let's substitute the value of x as 8 in the given equation to find the value of y ~

  • \sf2x + y = 12

  • \sf(2 \times 8) + y = 12

  • \sf16 + y = 12

  • \sf y = 12 - 16

  • \sf y =  - 4

6 0
2 years ago
The inverse of g(x) is a function
7nadin3 [17]

Answer:

yes because u can use g times any thing to get the right answer

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
1 in/2.54 cm = 90 in/? cm
nirvana33 [79]
1/2.54 = 90/x

Cross multiply
(1)x = (2.54)(90)

x would equal 228.6

The answer would be 90 in/ 228.6 cm.
7 0
3 years ago
(t^-4)^-9t^2 <br><br> A)t^26<br> B)t^-26<br> C)t^38<br> D)t^-38
Arisa [49]
The relevant rules of exponents are
.. (t^a)^b = t^(a·b)
.. t^a·t^b = t^(a+b)

You have
.. (t^-4)^-9·t^2
.. = t^((-4)*(-9) +2)
.. = t^38 . . . . . . . . . . . selection C
4 0
4 years ago
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