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Maksim231197 [3]
3 years ago
15

Line n passes through points (7, 12) and (4, 15). What is the slope of a line that

Mathematics
1 answer:
vitfil [10]3 years ago
3 0
So anytime we have a slope and want to find the slope of a perpendicular line, we just have to remember a perpendicular line's slope is the negative reciprocal (reciprocal means flip the fraction). So if we had a slope of 3/4, the slope perpendicular to it would be - 4/3.


First we need to find our slope, to do this we take the change in y over the change in x like so:

(15-12)/(4-7) = - 3/4

The slope perpendicular to this is 4/3.
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Thank you, please show me the steps.
Lady bird [3.3K]
V=(1/3)hpir^2
d/2=r
2.75/2=1.375
to make volume 4 times more
multiply height by 4 or multiply radius by 2
example
find current cup volume
V=(1/3)2.75pi1.375^2=2.2057291666666pi

if we times height by 4
3.5*4=14
V=(1/3)14pi1.375^2=8.822916666666666666pi

if we times radius by 2
1.375*2=5.5
V=(1/3)3.5pi5.5^2=8.822916666666666666pi


we can show it is 4 times by
8.822916666666666666pi/2.2057291666666pi= 3.99999 close enough
dimentions are

diameter of 2.75in and height of 11in or
 diameter of 5.5in and height of 3.5 in


7 0
3 years ago
The sum of two numbers is 43. The larger number is 21 more than the smaller number. What are the numbers?
german

Answer:

The numbers are 11 and 32.  Add to get a sum of 43, and subtract to get a difference of 21.  

Step-by-step explanation:

5 0
2 years ago
2. If you used the 23 cm basketball as your Moon sphere, how big
castortr0y [4]

Ok so I heard this question a few times already and couldn't remember how it went so I decided to put my brain to the test, I used my algebra to use and complete it.

If the Earth were shrunk down to the size of a basketball (radius:4.69 inches) the Moon would be a tennis ball (radius: 1.2768 inches, to be exact) 23.5 feet away.

The Sun would be a 42.6-foot sphere (source) located 1.7 miles away.

The closest star, Proxima Centauri, would still be 463,151 miles away – almost twice the distance of the actual moon."

6 0
3 years ago
Marvin has a standard deck of cards, what is the probability of 5?
Nonamiya [84]

Answer: 4/52

Step-by-step explanation:

Because thwre are 4, fives in a normal deck so the probability would be 4/52 not simplifyed

5 0
3 years ago
Read 2 more answers
What is an equivalent fraction for 3:11
Dmitry [639]

Answer:

\frac{3}{11}

Step-by-step explanation:

When you have something like that, just think that the first number goes on top and the second number goes on bottom.

8 0
3 years ago
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