4 years ago

(-1, -5) and y= -1/5x + 7. How do I solve this

Mathematics

1 answer:

Anika [276]4 years ago

8 0

Answer:

Using point-slope formula, if you're trying to find a parallel or perpendicular line to it.

Step-by-step explanation:

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Hi again, This is the last time I annoy you guys with this, but I really need help with my last question.

Dominik [7]

It would have a greater slope and perhaps start higher on the y axis.

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the Marked price of an article is rupees 1600 if it is sold for rupees 1420 what is the discount rate

Naya [18.7K]

Answer:

1600-1420= 180

Step-by-step explanation:

Given that

The Marked price of an article is rupees 1600 if it is sold for rupees 1420 then what is the discount rate

1600-1420

=180

then 180 percent is discount

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3 years ago

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Sandy has 17 fewer hockey cards than Al. Al has 55 hockey cards. How many hockey cards does Sandy have?

WARRIOR [948]

S = A - 17
A = 55

S = 55 - 17
S = 38 <=== Sandy has 38 cards

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3 years ago

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What is the answer to question 19 ?

tatyana61 [14]

The answer to question 19 is C

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3 years ago

A cylindrical barrel has a radius of 7.8 m and a height of 8.2 m. Doubling which dimension(s) will quadruple the volume of the b

V125BC [204]

Answer:

Doubling the radius of this cylindrical barrel would quadruple the volume.

Step-by-step explanation:

The volume of a cylinder of radius $r$ and height $h$ is:

$V = \pi \, r^{2}\, h$ .

If radius $r$ stays the same, volume $V$ would be proportional to height $h$ . That is, $V = (\pi\, r^{2})\, h$ . Doubling height $h\!$ would only double $V\!$ .

If height $h$ stays the same, volume $V$ would be proportional to $r^{2}$ , the square of the radius. That is, $V = (\pi\, h)\, r^{2}$ . Doubling radius $r\!$ would quadruple $r^{2}\!$ and thus quadruple $V\!$ as required.

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