3 years ago

Which statement correctly describes the expression (-70)(-6)?

Mathematics

2 answers:

ddd [48]3 years ago

4 0

The answer is A because the factors are both negative

EastWind [94]3 years ago

3 0

Answer: the answer is letter A

Step-by-step explanation:

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SOLVE THE EQUATION SHOW YOUR WORK 3x = 45

Hunter-Best [27]

Answer:

x = 15

Step-by-step explanation:

3x = 45

x = 45/3

x = 15

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3 years ago

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Which fraction do you multiply by to simplify 5/ 4 - 3i ?

Rzqust [24]

So I assume
$\frac{5}{4-3i}$

If so. Let us begin.

$\mathrm{Multiply\:by\:the\:conjugate}\:\frac{4+3i}{4+3i} \ \textgreater \ \frac{5\left(4+3i\right)}{\left(4-3i\right)\left(4+3i\right)} \ \textgreater \ \left(4-3i\right)\left(4+3i\right)$

$\mathrm{Apply\:complex\:arithmetic\:rule}:\ \left(a+bi\right)\left(a-bi\right)=a^2+b^2$
$Where\;a=4,\:b=-3 \ \textgreater \ 4^2+\left(-3\right)^2 \ \textgreater \ Refine \ \textgreater \ 25$

$\frac{5\left(4+3i\right)}{25} \ \textgreater \ \mathrm{Cancel\:the\:common\:factor:}\:5 \ \textgreater \ \frac{4+3i}{5}$

$Group\:the\:real\:part\:and\:the\:imaginary\:part\:of\:the\:complex\:number$
$\frac{4}{5}+\frac{3}{5}i\;is\;our\;answer!$

Hope this helps!

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3 years ago

What quadrant is the ordered pair (2,-3) in?

Neko [114]

Answer:

quadrant 4

Step-by-step explanation:

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''Write an equation for line ` l `.''

lawyer [7]

Y=4 I’m pretty sure

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3 years ago

Find the area 9cm 8cm 13cm 9cm 11cm

Viktor [21]

Answer:

460

Step-by-step explanation: multiply all numbers to get your answer

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3 years ago