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3 years ago

HEEEEEELP !

Mathematics

1 answer:

iogann1982 [59]3 years ago

6 0

If you meant to write y=23x-4 then none of the lines are perpendicular.

I suspect you intended y=2/3x-4, then line D, y=-3/2x-4 is perpendicular.

For any line y=mx+b, you have to "invert" m to get a perpendicular line. Inverting in this case means: flip numerator and denominator and add a minus sign.

So 2/3 becomes -3/2, hence answer D.

The 'inverted' m is called the opposite reciprocal. That's your word of the day.

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The given line segment has a midpoint at (3, 1).

rodikova [14]

Answer:c

Step-by-step explanation:

4 0

3 years ago

A bicycle tire has a radius of 11 inches. To the nearest inch, how far does the tire travel when it makes 7 revolutions?

jok3333 [9.3K]

Answer:

d = 483.56 inches

Step-by-step explanation:

We have,

Radius of a bicycle tire is 11 inches. It is required to find the distance traveled by the distance covered by the tire when it makes 7 revolutions. One revolution means the circumference of circle. So,

$C=2\pi r\\\\C=2\times 3.14\times 11\\\\C=69.08\ \text{inches}$

In 7 revolution, it will cover a distance of 7C i.e.

$C=69.08\times 7\\\\C=483.56\ \text{inches}$

So, the tire will cover a distance of 483.56 inches in 7 revolutions

8 0

3 years ago

Which expression is equivalent to (see attachment)

Kobotan [32]

Answer:

see below

Step-by-step explanation:

8 can be factored from each of the terms of the sum. (It's the distributive property.)

8·0 + 8·1 + 8·2 + ... + 8·26 + 8·27

= 8·(0 +1 +2 + ... +26 +27)

8 0

3 years ago

Find the measure of ∠BAC. Create another angle with the same measure. Measure the new angle to verify that it has the same angle

Strike441 [17]

Answer:

The position and orientation of the new angle may vary, but it should have the same angle measure as ∠BAC

.Step-by-step explanation:

4 0

3 years ago

What is the domain and range

Rainbow [258]

Well, keep in mind that the domain of a function is the entire set of possible values of the independent variable. To make it more clear, the domain is the set of all possible x-values, which will make the function work, and with real y-values as the output. So, the range would be the set of all of the second elements of an ordered pair (y-coordinates).

If you made a T chart like the picture you have above, you would have to put x (age of person) and y (books read).

So,

x = age of person

y = books read

4 0

3 years ago