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2 years ago

8

What is 0.25 as a percentage

2 answers:

sattari [20]2 years ago

8 0

the awnser is 25% because 0.25 divided by 1 ×100% = 25%

Varvara68 [4.7K]2 years ago

7 0

Answer:

25%

Step-by-step explanation:

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At Norman's Newsstand, 5 magazines cost $20.00. How many magazines could you buy with $44.00?

kobusy [5.1K]

Answer: 11 magazines

Step-by-step explanation:

1) 20/5 = $4 per magazine

2) 44/4 = 11 magazines

8 0

2 years ago

Read 2 more answers

For each of the following vector fields

olga nikolaevna [1]

(A)

$\dfrac{\partial f}{\partial x}=-16x+2y$

$\implies f(x,y)=-8x^2+2xy+g(y)$

$\implies\dfrac{\partial f}{\partial y}=2x+\dfrac{\mathrm dg}{\mathrm dy}=2x+10y$

$\implies\dfrac{\mathrm dg}{\mathrm dy}=10y$

$\implies g(y)=5y^2+C$

$\implies f(x,y)=\boxed{-8x^2+2xy+5y^2+C}$

(B)

$\dfrac{\partial f}{\partial x}=-8y$

$\implies f(x,y)=-8xy+g(y)$

$\implies\dfrac{\partial f}{\partial y}=-8x+\dfrac{\mathrm dg}{\mathrm dy}=-7x$

$\implies \dfrac{\mathrm dg}{\mathrm dy}=x$

But we assume $g(y)$ is a function of $y$ alone, so there is not potential function here.

(C)

$\dfrac{\partial f}{\partial x}=-8\sin y$

$\implies f(x,y)=-8x\sin y+g(x,y)$

$\implies\dfrac{\partial f}{\partial y}=-8x\cos y+\dfrac{\mathrm dg}{\mathrm dy}=4y-8x\cos y$

$\implies\dfrac{\mathrm dg}{\mathrm dy}=4y$

$\implies g(y)=2y^2+C$

$\implies f(x,y)=\boxed{-8x\sin y+2y^2+C}$

For (A) and (C), we have $f(0,0)=0$ , which makes $C=0$ for both.

4 0

3 years ago

Slope =0 through (4,-2)

Yanka [14]

Answer: -4, y = -2 = b.

3 0

2 years ago

A sample proportion of 0.44 is found. To determine the margin of error for this statistic, a simulation of 100 trials is run, ea

salantis [7]

Answer:

margine of error = $\pm$ 0.13

Step-by-step explanation:

given data

sample proportion = 0.44

simulation trials = 100

sample size = 100

point estimate = 0.44

minimum sample proportion = 0.32

maximum sample proportion = 0.50

solution

we will get here first z score that is express as

$z = \frac{x-\mu }{\sigma }$ ............1

here x = 0.32and 0.50

$\mu = 0.44\\\sigma = \frac{x(max) - x(min)}{4} \\\sigma = \frac{0.50 - 0.32)}{4} = 0.045$

so z will be

$z1 = \frac{0.50 - 0.44 }{0.045 } = 1.35\\z2 = \frac{0.32 - 0.44 }{0.045 } = -2.66$

so now we get here margin of error that is express as

margin of error = $\pm \ z \times \sqrt{\frac{p(1-p)}{n}}$ ................2

we use here z heighervalue

margin of error = $\pm \ 2.66 \times \sqrt{\frac{0.44(1-0.44)}{100}}$

margine of error = $\pm$ 0.13

8 0

3 years ago

Read 2 more answers

How do u solve this?

Nostrana [21]

9x² + 12x - 6 = x² - 7
Take the ones on the right to the left

9x² - x² + 12x -6 + 7 = 0

8x² + 12x + 1 = 0

4 0

3 years ago