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3 years ago

-0.28764 . . . is: rational irrational

Mathematics

2 answers:

zhuklara [117]3 years ago

7 0

Answer:

Step-by-step explanation:

IT is a rational number because an irrational number cannot be expressed as a fraction.

egoroff_w [7]3 years ago

7 0

Answer:

Irrational

Step-by-step explanation:

It is irrational because it continues on.

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.<br> Simplify the expression.<br><br> (7 – c)(–1)

Ganezh [65]

For this, you use the Law of Distribution and multiply -1 by all terms in the parentheses. 7 • -1 = -7; -c • -1 = c. Then you combine them, but since c is a variable, -7 + c is the most simplified it can get. I hope this helped!

7 0

3 years ago

Which equation represents a line which is perpendicular to the line y = -x + 8?

natima [27]

Two lines are perpendicular between each other if their slopes fulfills the following property

$m_1m_2=-1$

where m1 and m2 represents the slopes of line 1 an 2, respectively.

To find the slope of a line we can write it in the form slope-intercept form

$y=mx+b$

Our original line is

$y=-\frac{1}{8}x+8$

Then its slope is

$m_1=-\frac{1}{8}$

Now we have to find the slope of the second line. Using the first property,

$\begin{gathered} m_1m_2=-1_{} \\ -\frac{1}{8}m_2=-1_{} \\ m_2=(-1)(-8) \\ m_2=8 \end{gathered}$

Then the second line has to have a slope of 8.

The options given to us are:

$\begin{gathered} x+8y=8 \\ x-8y=-56 \\ 8x+y=5 \\ y-8x=4 \end{gathered}$

Then we have to determine which of these options have a slope of 8. To do that we write them in the slope-intercept form:

$\begin{gathered} x+8y=8\rightarrow y=-\frac{1}{8}x+1 \\ x-8y=-56\rightarrow y=\frac{1}{8}x+7 \\ 8x+y=5\rightarrow y=-8x+5 \\ y-8x=4\rightarrow y=8x+4 \end{gathered}$

Once we have the options in the right form, we note that the only one of them that has a slope of 8 is the last one.

Then the line perpendicular to the original one is

$y-8x=4$

8 0

1 year ago

Can you guys help with my math this is a huge grade as well :D

Softa [21]

answer

A .

Step-by-step explanation:

why cause she flipped it once than three more times and a shows four and 3 +1 = 4

7 0

3 years ago

Read 2 more answers

A package of 3 notebooks cost $5.46. At that rate, how much money would a package of 5 notebooks cost?

castortr0y [4]

5.46 ÷ 3 = 1.82
1.82 x 5 = 9.1
The answer is "9.10"

4 0

4 years ago

Write three different complex fractions that simplify to 1/4

andreyandreev [35.5K]

A complex fraction means that there must be a fraction in the numerator or denomenator or both

so

some are

$\frac{\frac{1}{8}}{\frac{1}{2}}$
$\frac{\frac{3}{8}}{\frac{3}{2}}$
$\frac{\frac{7}{8}}{\frac{7}{2}}$

3 0

4 years ago