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3 years ago

What is √4 times 8 divided by 4?

Mathematics

2 answers:

d1i1m1o1n [39]3 years ago

6 0

The answer would be:
8 × 4 = 32
32 ÷ 4 = 8

Lyrx [107]3 years ago

5 0

You first have to do the square root of 4 witch is 2.
Then Solve!
2 * 8 = 16
16/ 4 = 4
So the final answer is 4!
Hope this Helped!

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X+½x+7y=0 what is the value of y=?

Ganezh [65]

Answer:

$\frac{-3x}{14}$

Step-by-step explanation:

$x+\frac{1}{2}x+7y = 0\\$

$1.5x + 7y = 0$

$7y = -1.5x$

$y = \frac{-1.5x}{7}$

$= \frac{-3x}{14}$

Hope this helps :)

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2 years ago

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Neko [114]

Answer:

Step-by-step explanation:

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notsponge [240]

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3 years ago

WRITE AN EQUATION THAT MODELS EACH STATEMENT :

enot [183]

Step-by-step explanation:

Take John's sister's age as "x"

So, so twice his sister's age means = 2x

And 5 years more, means = 2x + 5

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5 0

2 years ago

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A student believes that less than 50% of students at his college receive financial aid. A random sample of 120 students was take

marusya05 [52]

Answer:

p= 0.9995 and we can conclude that students receiving aid is more than 50% according to the sample results in 2% significance level.

Step-by-step explanation:

$H_{0}$ : less than or equal 50% of students at his college receive financial aid

$H_{a}$ : more than 50% of students receive financial aid.

According to the nul hypothesis we assume a normal distribution with proportion 50%.

z-score of sample proportion can be calculated using the formula:

z= $\frac{X-M}{\frac{s}{\sqrt{N} } }$ where

X is the sample proportion (0.65)
M is the null hypothesis proportion (0.5)
s is the standard deviation of the sample ( $\sqrt{0.5*(1-0.5)}$ )
N is the sample size (120)

then z= $\frac{0.65-0.50}{\frac{\sqrt{0.25}}{\sqrt{120} } }$ ≈ 3,29

thus p= 0.9995 and since p<0.02 (2%), we reject the null hypothesis.

4 0

2 years ago