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3 years ago

HELP ASAP Which pair shows equivalent expressions?

Mathematics

1 answer:

vladimir1956 [14]3 years ago

6 0

Answer:

Tha awnser is B.

Step-by-step explanation:

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What is the midpoint between -2-3i and 3+9i

Svetlanka [38]

Answer:

1/2 + 3i is the midpoint between -2-3i and 3+9i.

Step-by-step explanation:

Given the complex number

-2-3i

3+9i

The formula to find the midpoint of two complex number (a + bi) and (c + di) is:

$M=\frac{\left(a+c\right)}{2}+\frac{\left(b+d\right)i}{2}$

$M=\frac{\left(-2+3\right)}{2}+\frac{\left(-3+\left(9\right)\right)i}{2}$

$M=\frac{-2+3+\left(-3+9\right)i}{2}$

$M=\frac{1+6i}{2}$

$M=\frac{1}{2}+3i$

Therefore, 1/2 + 3i is the midpoint between -2-3i and 3+9i.

3 0

3 years ago

HELP DUE IN 15 MINS!

boyakko [2]

Answer:

r = $2\sqrt{5}$

$(x - 3)^{2} + ( y - 2)^{2} = 20$

Is this a live test question or a homework question?

Step-by-step explanation:

the radius is the distance between (3, 2) and (5, -2)

$r^{2}$ = ${(3 - 5)^{2} + (2 + 2)^{2} }$

= $(-2)^{2} + 4^{2}$

= 4 + 16 = 20

r = $\sqrt{20 } = 2\sqrt{5}$

Equation of circle: $(x - 3)^{2} + ( y - 2)^{2} = 20$

8 0

2 years ago

Read 2 more answers

Please I really need help <br> This is my last point <br> Show workings please

KiRa [710]

Step-by-step explanation:

By rotating a figure,

The length of its sides remain the same.

Therefore line AB = line A'B'.

=> 5x - 14 = 4x + 4

=> x = 18

Hence, line AB = 5(18) - 14 = 76.

7 0

3 years ago

Read 2 more answers

Evaluate the following:81¾

Olin [163]

Answer:

81 $\frac{3}{4}$

Step-by-step explanation:

Sorry this question does not sense..... 81 $\frac{3}{4}$ is evaluated

maybe I don't understand the terminology

5 0

3 years ago

If 6 identical articles can be bought for 2<br>17<br>Find the cost of each article.

Romashka-Z-Leto [24]

Answer:

The answer would be 0.36

Step-by-step explanation:

3 0

3 years ago