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Olenka [21]
2 years ago
5

What number is equivalent to -21

Mathematics
2 answers:
Maksim231197 [3]2 years ago
8 0

Well, -21=x if x=-21 so that -21=-21 is true.

Natasha_Volkova [10]2 years ago
6 0
-21/1 could be the answer since it equals -21 but idk for sure. sorry
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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!
3 0
3 years ago
What is the name of an equivalent name for 96
Aleksandr-060686 [28]
For this case we have the following number:
 96
 We can rewrite this number in an equivalent way.
 For example, we can use words to rewrite the number.
 We have then:
 96 = ninety six
 Answer:
 
the name of an equivalent name for 96 is:
 
Ninety-six
8 0
3 years ago
Read 2 more answers
What is 9. 24 repeating as a mixed number in simplest form?
Serga [27]

The recurring decimal number 9.2424... expressed in mixed number is 9\frac{24}{99}

In the given decimal number, 2 is the digit at the tenth place and 4 is the digit at the hundredth place.

The fraction part \frac{24}{99} in the simplest form is \frac{8}{33}

The whole number part is 9.

Therefore, the number 9.2424... as a mixed number in the simplest form is 9\frac{8}{33}

3 0
3 years ago
Which equation is the inverse of y=100-x2
postnew [5]

Answer:

f^-1(x)=100-x

Step-by-step explanation:


4 0
2 years ago
Read 2 more answers
PLEASE HELP
Nookie1986 [14]

For the square with side length n, the diagonal measures:

d = \sqrt{2} *n

<h3>How to get the length of the diagonal?</h3>

The sidelength of the square is n, and we want to get the length of the diagonal d.

Notice that the diagonal is the hypotenuse of a right triangle whose catheti measure n.

Then we can use the Pythagorean theorem, which says that the square of the hypotenuse is equal to the sum of the squares of the cathetus;

d^2 = n^2 + n^2\\\\d^2 = 2n^2\\\\d = \sqrt{2n^2} \\\\d = \sqrt{2}*n

That is the length of the diagonal.

If you want to learn more about right triangles:

brainly.com/question/2217700

#SPJ1

6 0
1 year ago
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