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Travka [436]
3 years ago
5

Can someone please tell me the steps to find a number four?

Mathematics
2 answers:
Delicious77 [7]3 years ago
5 0
The answer is 21. 
I am not sure if you're looking for the answer, or the steps... get back to me foor help. 

ki77a [65]3 years ago
5 0
21 is correct I hope you pass
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Y = (1/4)x^2 - (1/2)lnx..over the interval (1, 7e) ...what is the arc length ?
xenn [34]
So, f[x] = 1/4x^2 - 1/2Ln(x) 
<span>thus f'[x] = 1/4*2x - 1/2*(1/x) = x/2 - 1/2x </span>
<span>thus f'[x]^2 = (x^2)/4 - 2*(x/2)*(1/2x) + 1/(4x^2) = (x^2)/4 - 1/2 + 1/(4x^2) </span>
<span>thus f'[x]^2 + 1 = (x^2)/4 + 1/2 + 1/(4x^2) = (x/2 + 1/2x)^2 </span>
<span>thus Sqrt[...] = (x/2 + 1/2x) </span>
6 0
3 years ago
What is the value of 5k + m when k = -3 and m = -<br> -9?<br> A. -60<br> B. -30<br> C.-24<br> D. -6
sladkih [1.3K]

Answer:

C. -24

Step-by-step explanation:

5k + m \\ k =  - 3 \\ m =  - 9

Plug in values into the given equation

5( - 3) + ( - 9) \\  - 15 - 9 \\  =  - 24

6 0
3 years ago
PLEASE HELP!!! which expression is equivalent to (3x)^4
dolphi86 [110]
The answer is b because youre multiplying 3 and 4 but the 4 stays in the same spot!
7 0
3 years ago
Question 3 (2 marks)
Sav [38]

Answer:

$3385 per week

Step-by-step explanation:

so, he gets $370 plus 4.5% of what he is selling.

$67000 = 100% of selling

1% = 100%/100 = 67000/100 = $670

4.5% = 1% × 4.5 = 670 × 4.5 = $3015

so, he gets $370 + $3015 = $3385 per week

7 0
2 years ago
27 red bikes out of 33 bikes
aalyn [17]

Answer:

6bikes

Step-by-step explanation:

Simple

<h2>#hope</h2>

........ ..........

4 0
2 years ago
Read 2 more answers
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