Insert three arthimetic means between 4 and 10

Mathematics

2 answers:

lapo4ka [179]3 years ago

7 0

Yes I work this out so yea you divide idk

olchik [2.2K]3 years ago

3 0

Answer:

dtyururututitigifijugugyf

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What is the rate of change of the water level , in feet per hour

miskamm [114]

A; rate of change is the same as slope, so, using the slope formula, $m= \frac{y_{2} - y\1_{1} }{ x_{2} - x_{1} }$ , where $m$ is the slope and $x_{1}$ , $x_{2}$ , $y_{1}$ , and $y_{2}$ are the $x$ and $y$ values.

Plug in $2$ points for $x$ and $y$ , water level being the $y$ and time being the $x$ since we're looking for the answer in ft/hr-- you can choose any two, but from the same row.

$m= \frac{ 30-50}{4-0}$
$m= \frac{-20}{4}$
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3 years ago

Substract 8 times the sum of a and b from 9y

erastovalidia [21]

Answer:

Step-by-step explanation:

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2 years ago

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What is the y-intercept of the function f(x) = 2x – 3 + 6? Round to two decimal places.

valina [46]

Y-intercept is where the graph intercepts/crosses the y-axis. So where x = 0
f(0) = 2(0) - 3 + 6
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3 years ago

The income distribution in a county is a normal distribution with a mean income of $10,000. The top 2.5% of the wage earners ear

earnstyle [38]

Answer:

84% of the wage earners earn less than $14,000 each.

Step-by-step explanation:

The Empirical Rule (68-95-99.7%)-

According to this around 95% of the data will fall within two standard deviations of the mean.

As the bell curve is symmetrical, so the remaining 5% will be divided into 2 equal parts. So 2.5% will be above 2 standard deviation and 2.5% will be below 2 standard deviation.

As it is given that, the top 2.5% of the wage earners earn $18,000 or more, so 18,000 is 2 standard deviation away from the mean 10,000.

i.e $2\sigma=18000-10000=8000$