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3 years ago

Omain of y = x+7 +5?

Mathematics

2 answers:

AURORKA [14]3 years ago

6 0

Answer:

trying to unlock something

IgorLugansk [536]3 years ago

6 0

Answer:

all real numbers

Step-by-step explanation:

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Plzzzzzzzz help fast im slow

zmey [24]

Answer:

Step-by-step explanation:

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2 years ago

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Last month, Carla’s neighbors paid her to take care of their cat when they went on vacation.she spent $4 of her earnings on an a

kap26 [50]

Answer:

she got 27 dollars

Step-by-step explanation:

when u add $4 and $14 u get $18.then add the 9 dollars she had left and u will get 27 dollars.

Hope this is a clear description

7 0

2 years ago

A cube has side length 0.7 metres.

Nadya [2.5K]

Answer:

2.94

Step-by-step explanation:

Area of one plane moultyply by number of planes

0.7*0.7*6

=2.94

7 0

3 years ago

Where is the axis on a quadrant

dezoksy [38]

Answer:

x axis and y axis divide the coordinate plane into four quadrants.

Step-by-step explanation:

If one coordinate is zero, then the point is located on the x-axis or the y-axis. If y coordinate is zero, then the point is located on the y-axis. If both coordinates are zero, then the point represents the origin.

8 0

4 years ago

The Ohio Department of Agriculture tested 203 fuel samples across the state in 1999 for accuracy of the reported octane level. F

OlgaM077 [116]

Answer:

The Sample size is 1918.89035

Step-by-step explanation:

Consider the provided information.

It is given that 14 out of 105 samples failed.

Therefore p = 14/105 = 0.13 3... and q=1-0.133=0.867

Samples would be needed to create a 99 percent confidence interval.

Subtract the confidence level from 1, then divide by two.

$\frac{(1 -0.99)}{2}=0.005$

By standard normal table z=2.5758≈2.58

Calculate the sample size as:

$n=\frac{z^2pq}{e^2}$

Where, e is the margin of error,

Substitute the respective values.

$n=\frac{(2.58)^2(0.133)(0.867)}{(0.02)^2}=1918.89$

Hence, the Sample size is 1918.89035

4 0

3 years ago