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4 years ago

How do you convert a percent into a decimal?

1 answer:

8 0

To do so, you would want to move the percents' decimal to the left twice. For example, to turn 75% to a decimal, you would move the decimal to the left twice turning 75% into 0.75

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Suppose y=3t+5 and x=21t^2. Write a function of f(x) that determines y in terms of x. (Assume that t≥0)

Vadim26 [7]

Answer:

$y=\sqrt{\dfrac{3}{7}x}+5$

Step-by-step explanation:

Suppose $y=3t+5$ and $x=21t^2.$

Express t from the first equation:

$3t=y-5\\ \\t=\dfrac{y-5}{3}$

Substitute it into the second equation:

$x=21\left(\dfrac{y-5}{3}\right)^2\\ \\x=21\cdot\dfrac{(y-5)^2}{9}\\ \\(y-5)^2=\dfrac{9}{21}x\\ \\y-5=\pm \sqrt{\dfrac{3}{7}x}$

Since $t\ge 0,$ then $y-5\ge 0,$ so

$y-5=\sqrt{\dfrac{3}{7}x}\\ \\y=\sqrt{\dfrac{3}{7}x}+5$

7 0

3 years ago

Find dy/dx by implicit differentiation and evaluate the derivative at the given point.

Ray Of Light [21]

So, we have xy=35
Since that, the first thing you should do is to differentiate with respect to x
(look at the pic. 1), as you can see this is simply 1, which means you have to simplify
Then we need to perform solving for for dy/dx as we are about to get the derivative of y with respect to x. pic.2
Get back to the oroginal function, now we can substitute this for y to get the func which will depend only on x pic.3
Then pic.4

5 0

4 years ago

Hello, is there anyone here a pharmacy technician?

RoseWind [281]

No i am not i hope that you find who you are looking for.

4 0

3 years ago

Which of the following is a factor of 10x2 − 19x + 6?

motikmotik

10x2-19x+6
-19x+20+6
-19x+26
No factor

D. None of the above

3 0

3 years ago

2x + 3 = 5 what does x equal?

Delvig [45]

Answer:

x=1

2x+3=5

-3 -3

now the three gets canceled and 5-3 is 2

2x=2

now divide 2 on both sides

2x÷2=2÷2

x=1

3 0

3 years ago