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quester [9]
3 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]3 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]3 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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QRINC offered new employees a starting salary of $34,862 in 2013. What would a comparable starting salary have been in 2003?
Vlad1618 [11]

Complete Question

Table of Annual CPI values

2003-184.00            

2004-188.90

2005-195.3

2006-201.6

2007-207.342

2008-215.303

2009-214.537

2010-218.056

2011-224.939

2012-229.594

2013-232.957

2014-236.736

QRINC offered new employees a starting salary of $34,862 in 2013. What would a comparable starting salary have been in 2003?

Answer:

C=27535.5881128

Step-by-step explanation:

From the question we are told that

CPI for 2003(index)=2003-184.00  

CPI for 2013(index)=2013-232.957  

Starting salary in 2013 at $34,862

Generally  comparable starting salary C is given as

   C=\frac{starting salary}{CPI for 2013(index} *CPI for 2003(index)

   C=\frac{34,862}{232.957} *184

Therefore C the comparable starting salary is givrn to be

   C=27535.5881128

   C=27536 appro

8 0
3 years ago
You decided to throw a fair die four times.
Finger [1]

Answer:

If all you care about is whether you roll 2 or not, you get a Binomial distribution with an individual success probability 1/6. The probability of rolling 2 at least two times, is the same as the probability of not rolling 2 at zero or one time.

the answer is, 1 - bin(k=0, n=4, r=1/6) - bin(k=1, n=4, r=1/6). This evaluates to about 13%, just like your result (you just computed all three outcomes satisfying the proposition rather than the two that didn’t).

Step-by-step explanation:

7 0
2 years ago
Factor the following trinomial.<br> 2x^2+11x – 21
SSSSS [86.1K]

Answer:

(2x - 3) (x + 7) or at least thats what I got

6 0
3 years ago
Round to the nearest 10.<br> 473 <br>91<br>889<br> 124​
Novosadov [1.4K]

470

90

890

120

hope this helped :)

please mark as brainliest !!

3 0
3 years ago
Read 2 more answers
Pls help ill give a 100 jusrt answer these question and ill even give brainliest
mojhsa [17]

Answer:

That is a lot of questions to answer. But I will try.

5)

a) 6 square units

b) 5/6

Second picture

1. Area = 6

2. Area = 4.5

3. Area = 20

4. Area = 9

5. Area = 17.5

Third picture

a) 8 units because if you move the bottom triangle to the top of the other triangle it makes a rectangle with height of 2 and length of 4.

I'm sorry I have to go I would love to finish this but I hope what I gave helps you!

8 0
3 years ago
Read 2 more answers
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