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3 years ago

Solve for n. –9n − 1 = –10n

Mathematics

2 answers:

mario62 [17]3 years ago

7 0

Answer:

n = -1

Step-by-step explanation:

-9n - 1 = -10n

+9n +9n

-1 = n

givi [52]3 years ago

6 0

Answer:

n=1

Step-by-step explanation:

Let's solve your equation step-by-step.

−9n−1=−10n

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What undefined terms are needed to define a line segment?

Kisachek [45]

I think it would be B but not 100% sure

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3 years ago

The wheeling Bridge of west virginia is about 307 .8 meters long. If you walk with a stride about 7/10 meter, about how many ste

Anuta_ua [19.1K]

Answer:

440 I believe is the answer

Step-by-step explanation:

307.8 divided by( 7/10), which gets you 439.714285714. But you round up because if you round down, it would not be enough steps :)

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3 years ago

Match each of the following complex numbers with its equivalent expression.

Yanka [14]

Answer:

Therefore

$i^{110}=-1$

$i^{92}=1$

$i^{245}=i$

$i^{347}=-i$

Step-by-step explanation:

Complex Number :

A complex number is a number that can be expressed in the form

$a + bi$

where a and b are real numbers, and

' i ' is called an imaginary number.

The value of i is given as

$i=\sqrt{-1}$

Squaring both the side we get

$i^{2}=(\sqrt{-1})^{2}\\\therefore i^{2}=-1$

Therefore on substituting we get

For i^110

$i^{110}=(i^{2})^{55}=(-1)^{55}=-1$

Similarly for i^92

$i^{92}=(i^{2})^{46}=(-1)^{46}=1$

Similarly for i^245

$i^{245}=(i^{2})^{122}\times i=(-1)^{122}\times i=1\times i =i$

Similarly for i^347

$i^{347}=(i^{2})^{173}\times i=(-1)^{173}\times i=-1\times i =-i$

Therefore

$i^{110}=-1$

$i^{92}=1$

$i^{245}=i$

$i^{347}=-i$

6 0

3 years ago

Lines that never intersect are perpendicular True or False

Arada [10]

Hey there!

The answer is false. Two lines that intersect and form right angles are called perpendicular lines.

Hope this helps!

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3 years ago

What is the solution to -6(3a+4)=3a-3

stich3 [128]

Answer:

a = -1

Step-by-step explanation:

-6(3a+4) = 3a-3

-18a-24 = 3a-3

-24+3 = 3a+18a

21a = -21

a = -21 ÷ 21

a = -1

6 0

2 years ago