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3 years ago

What is 4,069.44 rounded to the nearest hundredth

Mathematics

2 answers:

dangina [55]3 years ago

8 0

The answer would be 4,069.40

Dmitry_Shevchenko [17]3 years ago

3 0

4,069.44 is already rounded to the nearest hundredth.

The period represents the ones place, so the number to the right of it represents the tenth place, and next that is the hundredth, and so forth.

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Find the equation of the line which passes through the point (7,2) and is perpendicular to y=5x-2

MariettaO [177]

Answer:

$\displaystyle y=-\frac{1}{5}x+\frac{17}{5}$

Step-by-step explanation:

<u>Equation of a line</u>

A line can be represented by an equation of the form

$y=mx+b$

Where x is the independent variable, m is the slope of the line, b is the y-intercept and y is the dependent variable.

We need to find the equation of the line passing through the point (7,2) and is perpendicular to the line y=5x-2.

Two lines with slopes m1 and m2 are perpendicular if:

$m_1.m_2=-1$

The given line has a slope m1=5, thus the slope of our required line is:

$\displaystyle m_2=-\frac{1}{m_1}=-\frac{1}{5}$

The equation of the line now can be expressed as:

$\displaystyle y=-\frac{1}{5}x+b$

We need to find the value of b, which can be done by using the point (7,2):

$\displaystyle 2=-\frac{1}{5}*7+b$

Operating:

$\displaystyle 2=-\frac{7}{5}+b$

Multiplying by 5:

$10=-7+5b$

Operating:

$10+7=5b$

Solving for b:

$\displaystyle b=\frac{17}{5}$

The equation of the line is:

$\boxed{\displaystyle y=-\frac{1}{5}x+\frac{17}{5}}$

7 0

3 years ago

The use of the internet is constantly growing. How many randomly selected adults must be surveyed to estimate the percentage of

Alika [10]

Out of those 2 answers I believe your answer would be B only because 81% of Americans in the us have a phone and 35% of people in the us check there phone more than 50 times per day

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2 years ago

What would be the missing angle?

Korvikt [17]

x = 60°

180 - 120 = 60

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3 years ago

Please help with these question, giving brainliest :)

garri49 [273]

Answer:

Step-by-step explanation:

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2 years ago

What is the sum of 2^5 and 7^2? Write the answer in the ordinary form.

posledela

Answer:

It's 81

Step-by-step explanation:

2^5 is 2*2*2*2*2 or 32

7^2 is 7*7 or 49

Add them together... 81

5 0

2 years ago