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3 years ago

line p contains the points (9,7) and (13,5). which equation represents a line perpendicular to line p?

Mathematics

1 answer:

Effectus [21]3 years ago

4 0

Answer:

y = 2x + 3

Step-by-step explanation:

As we go from (9,7) to (13,5), x increases by 4 and y decreases by 2. Thus, the slope of line p is m = rise/run = -2/4, or m = -1/2.

A line perpendicular to p will have a slope that is the negative reciprocal of the slope of p: -1 / {-1/2}, or m = 2.

One example of such a perpendicular line is y = 2x + 3. Here I borrowed the slope m and invented the y-intercept, b.

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F (x) = -2x² + 6x + 1<br><br> Find f (-6)

butalik [34]

Answer:

-2(-6)^2 + 6(-6) + 1

-72 -36+1 = -107

6 0

3 years ago

In a school library, 7/12 of the books are about science. Of the science books, 2/3 are about mammals. What fraction of the tota

Pavel [41]

The fraction of the total books about mammals is 7/18

Let the total number of books in the school be 1 whole , ie 12/12( since we are dealing with fractions)

Number of science books =7/12

Number of mammals books =2/3 of science books

=2/3 x 7/12=14/36 = 7/18

Since the total books are 12/12 which is also =1 whole

Then the fraction of total books that are about mammals are 7/18 x 1 whole =7/18

See related answer here: brainly.com/question/18443368

4 0

2 years ago

Name three collinear points.<br> Type your answer as follows:

Natali5045456 [20]

Answer:

A, B, E

Step-by-step explanation:

Three or more points are said to be collinear, if they lie on a single straight line

3 0

3 years ago

What choice is equivalent to the quotient when x>0? [Photo attached]

MakcuM [25]

Answer:

D) 5√x / 4

Step-by-step explanation:

√50x^3 / √32x^2

= (5x√2x) / (4x√2)

= 5/4 √(2x/2)

= 5/4 (√x)

= 5√x / 4

3 0

3 years ago

Read 2 more answers

What is the value of X ? 4/5×-1/10 equals 310

Romashka-Z-Leto [24]

Answer:

387.625

Step-by-step explanation:

I'm not completely sure what that last number is supposed to be but if it is $\frac{4}{5}x -\frac{1}{10} =310$ , then the answer above is correct.

First, you create common denominators:

$\frac{8}{10}x -\frac{1}{10} =310$

Then you can get rid of the denominator by multiplying both sides by 10:

$8x -1 =3100$

Then add one to both sides to isolate x:

$8x = 3101$

Lastly, divide by 8:

$x = 387.625$

5 0

3 years ago