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3 years ago

Pls, help due in 30 mins!! it is math.

Mathematics

2 answers:

taurus [48]3 years ago

8 0

Answer:

2. scale factor 2 | x = 4.5

3. scale factor 1.5 | x = 12

Step-by-step explanation:

Darya [45]3 years ago

4 0

X=4.5 I can show work

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Find the quotient of these Complex Numbers. <br><br><br> (5-i) / (3+2i)

JulsSmile [24]

Let the given complex number

z = x + ix = $\dfrac{5-i}{3+2i}$

We have to find the standard form of complex number.

Solution:

∴ x + iy = $\dfrac{5-i}{3+2i}$

Rationalising numerator part of complex number, we get

x + iy = $\dfrac{5-i}{3+2i}\times \dfrac{3-2i}{3-2i}$

⇒ x + iy = $\dfrac{(5-i)(3-2i)}{3^2-(2i)^2}$

Using the algebraic identity:

(a + b)(a - b) = $a^{2}$ - $b^{2}$

⇒ x + iy = $\dfrac{15-10i-3i+2i^2}{9-4i^2}$

⇒ x + iy = $\dfrac{15-13i+2(-1)}{9-4(-1)}$ [ ∵ $i^{2} =-1$ ]

⇒ x + iy = $\dfrac{15-2-13i}{9+4}$

⇒ x + iy = $\dfrac{13-13i}{13}$

⇒ x + iy = $\dfrac{13(1-i)}{13}$

⇒ x + iy = 1 - i

Thus, the given complex number in standard form as "1 - i".

5 0

3 years ago

Can someone double check me???

kvv77 [185]

You’re correct I think

8 0

3 years ago

2/3 as afraction with a denominator of 6

yanalaym [24]

Answer:

4/6

Step-by-step explanation:

3 x 2 = 6

2 x 2 = 4

2/3 = 4/6

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3 years ago

Which of these four sets of side lengths will form a right triangle?

Kay [80]

Set 4 is the correct answer because if you multiply 10 by 10 + 20 times 20, you will get 400 and when you multiply 30 by 30 you also get 400 which is equal to 400 there for you answer would be set 4.

Hope I helped if I did click the thx button ;)

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3 years ago

Read 2 more answers

A rectangle has a height of 3 and a width of 2x^2+3x-5

Ivan

Answer:

Step-by-step explanation:

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3 years ago