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Vilka [71]
3 years ago
13

Find the equation of the line passing through the point (–1, 5) and perpendicular to the line y = – 3x + 4.

Mathematics
1 answer:
dsp733 years ago
3 0

9514 1404 393

Answer:

  A)  3y = x + 16

Step-by-step explanation:

The equation of a perpendicular line can be found by swapping the x- and y-coefficients and negating one of them. The constant will be chosen to match the given point.

Swapping coefficients, we get ...

  -3y = x + c

Negating the y-coefficient gives ...

  3y = x + c

Filling in the given point, we have ...

  3(5) = -1 + c

  16 = c

The equation of the perpendicular line can be written as ...

  3y = x + 16 . . . . matches choice A

_____

Note that choice A is the only equation that gives a line with positive slope. The given equation has negative slope, so its perpendicular must have positive slope.

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You purchase a television anda blu-ray palter together for $1,759. The blue-ray player, by itself, cost $469. How much did the t
satela [25.4K]
Both together cost $1759.
That means that sum of the two prices is $1759.
The operation that is the opposite of addition is subtraction.
We subtract $469 from $1759 to find the price of the televition.

$1759 - $469 =

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$1759 - $469 = $1290

Answer: The price of the television is $1290.


7 0
3 years ago
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The original price of a skateboard, not including tax, was $96. Charlie bought the skateboard on sale, and he saved 30% off of t
Juli2301 [7.4K]

Answer:

The sale price was $67.20

Step-by-step explanation:

The sale price is 30% less than the original price.  Symbolically,

Sale price:  (100% less 30%) of $96, or

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The sale price was $67.20

6 0
2 years ago
Someone help please
Pachacha [2.7K]

Answer:

Step-by-step explanation:

Vertics= 6

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5 0
2 years ago
9-19 can somebody explain how to do one of them (not the answer) but how to work them out and the answer
Jet001 [13]

Answer: I’ll give you an example of how to do it by solving number 9 - h^2 + 8h + 16

Step-by-step explanation:

Step 1: Find two numbers that when you multiply them it gives you the first term’s coefficient multiplied by the last term’s coefficient (1x16 = 16) and when you add them it gives you the second term’s coefficient (8). The numbers in this case are positive 4 and positive 4.

Step 2: Create two parenthesis with the letter accompanied by the numbers. (h + 4)•(h+4). And that’s how you factor.

In case the first term is elevated to the third you will have to take out GCF (greatest common factor) first. If the numbers are too high like in the exercise number 15 you can also take out GCF and it will make it a lot easier to solve. Sometimes what you write on the parenthesis in the step 2 can be simplified, if that’s so then you would have to do it in order to get the correct answer.

Hope this helps you.

3 0
2 years ago
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Is the following shape a right triangle? How do you know?
Marat540 [252]

Answer:

Yes

Step-by-step explanation:

A has a right angle because A on the triangle is turned at a 90 degree angle.

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2 years ago
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