3 years ago

WILL MARK BRAINLIEST

Mathematics

1 answer:

il63 [147K]3 years ago

8 0

Answer:

1) c 2)c 3)b

Step-by-step explanation:

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frozen [14]

$\sqrt{-4}$ can also be written as 2i
where i = √-1

$\frac{2i}{4-2-3i} = \frac{2i}{2-3i}$

Rationalizing denominator,

$\frac{2i(2+3i)}{(2-3i)(2+3i)} = \frac{4i-6}{4+9} = \frac{4i-6}{13}$

8 0

2 years ago

425 is what percent of 1700

IgorLugansk [536]

Find 425/1700 as a decimal fraction, and then mult. the result by 100%:

425
-------- * 100% = 25% (answer)
1700

4 0

3 years ago

7 men have 7 wives.

serg [7]

Answer:

98 is your answer

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Whichhhhh oneeeeeeeeeeeee

Nostrana [21]

Answer:

Step-by-step explanation:

the slope of A is 1/2 which is greater than that of B

6 0

2 years ago

Explain how you got the answer

Gnoma [55]

Answer:

$\huge\boxed{Center = (3,3),Radius = 2\sqrt{15} }$

Step-by-step explanation:

Given equation is

$x^2 + y^2 -6x-6y -42 = 0$

Adding 42 to both sides

$x^2 + y^2 -6x-6y = 42\\$

Completing squares

$x^2 -6x+y^2 -6x = 42\\(x)^2 - 2(x)(3) +y^2 - 2(y)(3) = 42$

Adding (3)² => 9 and (3)² => 9 to both sides

$(x-3)^2+(y-3)^2 = 42+9+9\\(x-3)^2 + (y-3)^2 = 60\\(x-3)^2 (y-3)^2 = (2{\sqrt{15})^2}$

Comparing it with $(x-h)^2+(y-k)^2 = r^2$ where Center = (h,k) and Radius = r

We get:

Center = (3,3)

Radius = $2\sqrt{15}$

7 0

3 years ago