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3 years ago

(12,-1),(-2,-3) What is the finding slope?

Mathematics

2 answers:

ddd [48]3 years ago

7 0

Answer:

The slope is 1/7 or m=1/7

Step-by-step explanation:

-3-(-1)/-2-12

-3+1/-2-12

-2/-14

1/7

viktelen [127]3 years ago

5 0

Answer: 7

Step-by-step explanation:

m = -14 / -2 = 7

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Plz help me and answer!

Yuri [45]

Answer:

(3,4)

Step-by-step explanation:

A function can't have the x repeat so the only possible answer is (3,4)

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3 years ago

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A particle moves on the hyperbola xy=18 for time t≥0 seconds. At a certain instant, y=6 and dydt=8. What is x that this instant?

professor190 [17]

Answer:

The value of x at this instant is 3.

Step-by-step explanation:

Let $x\cdot y = 18$ , we get an additional equation by implicit differentiation:

$x\cdot \frac{dy}{dt}+y\cdot \frac{dx}{dt} = 0$ (1)

From the first equation we find that:

$x = \frac{18}{y}$ (2)

By applying (2) in (1), we get the resulting expression:

$\frac{18}{y}\cdot \frac{dy}{dt}+y\cdot \frac{dx}{dt} = 0$ (3)

$y\cdot \frac{dx}{dt}=-\frac{18}{y}\cdot \frac{dy}{dt}$

$\frac{dx}{dt} = -\frac{18}{y^{2}} \cdot \frac{dy}{dt}$

If we know that $y = 6$ and $\frac{dy}{dt} = 8$ , then the first derivative of x in time is:

$\frac{dx}{dt} = -\frac{18}{6^{2}} \cdot (8)$

$\frac{dx}{dt} = -4$

From (1) we determine the value of x at this instant:

$x\cdot \frac{dy}{dt} = -y\cdot \frac{dx}{dt}$

$x = -y\cdot \left(\frac{\frac{dx}{dt} }{\frac{dy}{dt} } \right)$

$x = -6\cdot \left(\frac{-4}{8} \right)$

$x = 3$

The value of x at this instant is 3.

4 0

3 years ago

A recipe uses 1/2 tablespoon of sugar for every 1 1/2 cups of oatmeal. How many tablespoons are used for each cup of oatmeal?

DochEvi [55]

1/2 = 1/1/2 cups
1 cup = 1/3 tablespoons

i am a mathematics teacher. if anything to ask please pm me

6 0

3 years ago

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Robert rented a web address for his company's website. His contract required a fee of $25 a month for the web address. However,

Kazeer [188]

Answer: $20.59

Step-by-step explanation:

0.13 * 6 = 0.78

25 - 0.78 = 24.22

85% * 24.22 = 20.59

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3 years ago

All of the following represent the same expression except

yanalaym [24]

Answer:

-8(a)(6)

Step-by-step explanation:

in this expression there is not a second variable, instead it's 6. so if it were to be correct it would be -8(a)(b) but since they put 6 instead of b it's not correct

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3 years ago

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