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harkovskaia [24]
3 years ago
14

Find the value of x^2 + 1 divided by x^2 if x-1 divided by x =5

Mathematics
1 answer:
MrRa [10]3 years ago
6 0

Answer:

x^2+1/x^2

(x+1/x)^2 = x^2+1/x^2 +2

(5)^2 = x^2+1/x^2 + 2

25 = x^2+1/x^2 + 2

25-2 = x^2+1/x^2

23 = x^2+1/x^2

Step-by-step explanation:

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Suppose you earn 6 dollars per hour at your part-time job. What will your new hourly rate be after a 2.5 percent raise? Why
icang [17]

#1: Change 2.5 percent to a decimal.

This is how you change 2.5 into a decimal:  By dividing by 100.

2.5 divided by 100 = 0.025

#2: Multiply 6 by 0.025.

6 x 0.025 = 0.15

#3: Last but not least, add 0.15 and 6

6 + 0.15 = 6.15

The answer you are looking for would be 6.15 dollars.

= $6.15

Hope this helps!-Aparri

7 0
3 years ago
A car purchased for $34,000 is expected to lose value, or depreciate, at a rate of 6% per year. Using x for years and y for the
lilavasa [31]
The equation is y=34000(1-0.06)ˣ.

It will take nearly 8 years for the car to lose enough value to be worth less than $21,000.

Using 21,000 for y, we have
21000=34000(1-0.06)ˣ
21000=34000(0.94)ˣ

Dividing both sides by 34000:
21000/34000 = 34000(0.94)ˣ/34000
(21/34) = 0.94ˣ

Using logarithms to solve this,
\log_{0.94}(\frac{21}{34})=x
\\x=7.79 \approx8
7 0
3 years ago
Factor completely <img src="https://tex.z-dn.net/?f=3x%5E3-3x%5E2-18x" id="TexFormula1" title="3x^3-3x^2-18x" alt="3x^3-3x^2-18x
Sever21 [200]

Answer:

The answer is 3x(x - 3)(x + 2)

Step-by-step explanation:

3x³ - 3x² - 18x

<u>Factor out 3x from the expression</u>

We have

3x ( x² - x - 6)

<u>Solve</u><u> the terms in the bracket</u>

We have

3x ( x² + 2x - 3x - 6)

<u>Factor out x the expression in the bracket</u>

We have

3x ( x ( x + 2) - 3( x + 2) )

<u>Factor out x + 2 from the expression in the bracket</u>

We have the final answer as

<h3>3x ( x - 3) (x + 2)</h3>

Hope this helps you.

5 0
3 years ago
If A D and C F, which additional statement does NOT allow you to conclude that AABC = ADEF?
FrozenT [24]

Answer:

B

Step-by-step explanation:

i think its b because all the other answers are talking about the sides but b is talking about the angles which in the question it states angles (A,D,C, and F) so going off an educated guess i would say the answer is b i dont know  if its correct or not though.

7 0
2 years ago
What is the simplified form of 3x - 6/ x -2 ?
nlexa [21]
3x-6/x-2
3(x-2)/x-2
3

3 is the simplified form 
5 0
2 years ago
Read 2 more answers
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