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quester [9]
2 years ago
8

30 POINTS. Please simplify this with all steps

0" id="TexFormula1" title="( \frac{5i^3t^4}{7})-2 " alt="( \frac{5i^3t^4}{7})-2 " align="absmiddle" class="latex-formula">
Mathematics
2 answers:
lesantik [10]2 years ago
8 0
Simplify the following:
(5 i^3 t^4)/7 - 2
i^3 = i^2×i = (-1) i = -i:
(5×-i t^4)/7 - 2
Put each term in (5 (-i) t^4)/7 - 2 over the common denominator 7:
(5 (-i) t^4)/7 - 2 = (-5 i t^4)/7 - 14/7:
(-5 i t^4)/7 - 14/7
(-5 i t^4)/7 - 14/7 = (-5 i t^4 - 14)/7:
Answer:  (-5 i t^4 - 14)/7
Brrunno [24]2 years ago
3 0
I^3= -1 
\frac{5i^{3}t^{4}  }{7} = -\frac{5it^4}{7}

\frac{5i^{3}t^{4} }{7} = -\frac{5it^4}{7} = answer-2- \frac{5t^4}{7}i
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Answer:

\frac{4}{9}

Step-by-step explanation:

To find this probability, we have to know:

  • How many numbers are there in between 5 and 8 inclusive?
  • How many total numbers are there?

We simply divide the first answer by the second one and get our probability.

So, the numbers are 5,6,7,8 ----- that is 4 numbers

How many numbers are there in total?  That is:

0, 1, 2, 3, 4, 5, 6, 7, 8, or 9  ------- 9 numbers

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3 years ago
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alexgriva [62]

Answer:

The slope of a line that is perpendicular to the line

shown in the graph is = 4

Hence, option 'd' is true.

Step-by-step explanation:

From the line equation, let us take two points

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  • (4, 1)

Finding the slope between two points

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(0,\:2\right),\:\left(x_2,\:y_2\right)=\left(4,\:1\right)

m=\frac{1-2}{4-0}

m=-\frac{1}{4}

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line, so

The slope of the perpendicular line will be:

-\frac{1}{-\frac{1}{4}}=4

Thus, the slope of a line that is perpendicular to the line

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Hence, option 'd' is true.

5 0
3 years ago
Please help. Don’t understand this math problem!!!
Fittoniya [83]

Answer:

1). Option (C)

2). Option (A). degree of 3 = 0

Step-by-step explanation:

A polynomial having one term is called 'Monomial' in algebraic terms.

3 is a number that is a polynomial with a single term.

Therefore, the given expression is a polynomial.

Hence Option (C) is the answer.

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Therefore, degree of the polynomial is 0.

Option (A). degree of the polynomial = 0

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Answer:

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Step-by-step explanation:

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