2 years ago

Solve each quadratic equation by factoring. 1] x^2+24=11x 2] 2x^2+12x-14=0

Mathematics

1 answer:

slavikrds [6]2 years ago

3 0

1] x=3 and x=8

2] x=-7 and x=1

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Answer:

B) 1/4

Step-by-step explanation:

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3 years ago

Ronald and Tim did their laundry today. Ronald does laundry every 6 days and Tom does laundry every 9 days. How many days will i

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Least common multiple question

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3 years ago

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aleksley [76]

Answer:

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2 years ago

Read 2 more answers

Convert the complex number z = 4 - 10i from rectangular form to polar form.

mrs_skeptik [129]

ANSWER

$r = 2 \sqrt{29} ( \cos(292 \degree) + \sin(292 \degree))$

EXPLANATION

The polar form of a complex number ,

$z = x + yi$

is given by:

$z = r( \cos( \theta) + i \sin( \theta) )$

where

$r = \sqrt{ {x}^{2} + {y}^{2} }$

The given complex number is:

$z = 4 - 10i$

$r = \sqrt{ {4}^{2} + {( - 10)}^{2} }$

$r = \sqrt{16 + 100}$

$r = \sqrt{116} = 2 \sqrt{29}$

And

$\theta= \tan^{ - 1}(\frac{ y}{x} )$

$\theta= \tan^{ - 1}(\frac{ - 10}{4} )$

$\theta= 292 \degree$

Hence the polar form is :

$r = 2 \sqrt{29} ( \cos(292 \degree) + \sin(292 \degree))$

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2 years ago

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Gnoma [55]

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f(s) = s^3

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2 years ago