2 years ago

Find the diameter of a circle with an

Mathematics

1 answer:

hjlf2 years ago

4 0

Answer: 832

Step-by-step explanation:

trust i got correct

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Which quadratic equation has the roots -1+4i and -1-4i

AysviL [449]

Answer:

Step-by-step explanation:

Solve the quadratic in answer choice C using the quadratic formula:

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}$ .

Here a=1, b=2, and c=17.

Substitute and you'll have:

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a} =\frac{-2+/-\sqrt{(-2)^2-4(1)(17)} }{2(1)}=\frac{-2+/-\sqrt{4-68}}{2)}$

$\frac{-2+/-\sqrt{-64} }{2}=\frac{-2+/-8i }{2}=-1+/- 4i$

6 0

3 years ago

A tablet computer costs $189.69 including tax. It is marked up 30%.

Alina [70]

The correct answer is D. $246.6
(It is actually $246.597 but that is rounded to 246.6)
$189.69 x .3 = 56.907
$189.69 + $56.907 = $246.597

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3 years ago

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Our answer should be a complex number in the form a +bi where a and b are real numbers.

Otrada [13]

Answer:

16 +88i

Step-by-step explanation:

8 x (11i + 2 ) =

Distribute

8*11i + 8*2

88i +16

Writing in the proper form

16 +88i

6 0

3 years ago

What is 1574/15 redused

r-ruslan [8.4K]

Answer:

104 14/15

Step-by-step explanation:

15 goes into 1574 104 times and you have 14 remaining so you have 104 with a remaining fraction of 14/15.

3 0

3 years ago

Solve for

lakkis [162]

Answer:

Step-by-step explanation:

this is so simple

4 0

2 years ago

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