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Scilla [17]
4 years ago
9

What do the following equations represent 4x-2y=-5 and 16x-8y=-2

Mathematics
2 answers:
Alborosie4 years ago
8 0

Answer:

The answer to your question is:   B = parallel lines

Step-by-step explanation:

Data

          4x - 2y = - 5   (I)

         16x - 8y = -2    (II)

Find the slopes of both lines

(I)        4x - 2y = -5

          - 2y = - 4x - 5

            y = -4/-2 x - 5/-2

           y = 2x + 5/2                   slope = 2

(II)      16x  - 8y = -2

         - 8y = -16x - 2

          y = -16/-8 x - 2/-8

          y = 2x + 1/4                    slope = 2

As the slopes are the same, they are parallel lines.

Svetach [21]4 years ago
6 0

Answer:

they are perpendicular lines

Step-by-step explanation:

i just answered this

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A furniture store pays a wholesale price for a mattress. Then, the store marks up the retail price to 150% of the wholesale pric
slega [8]
Part A:

Given that <span>the mattress is sold for 50% off of the retail price, let the retail price of the mattress be x, then

50% of x = 1200
⇒ 0.5x = 1200
⇒ x = 1200 / 0.5 = 2400

Therefore, </span><span>the retail price of the mattress, before the discount is $2,400.



Part B:

Given that </span><span>the store marks up the retail price to 150% of the wholesale price. Let the whole sale price be p, then

(100% + 150%) of p = 2400
250% of p = 2400
2.5p = 2400
p = 2400 / 2.5 = 960.

Therefore, </span><span>the wholesale price, before the markup was $960</span>
3 0
3 years ago
Find the range for the domain {-3, 1,4.5} f(x) = 2x
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Answer:

Step-by-step explanation:

f(x) = 2x2

Range = {f(-3), f(1), f(4), f(5)} = {18, 2, 32, 50}

5 0
3 years ago
X^2 + 2x + 5 find the zeros
Dvinal [7]

Answer:

Step-by-step explanation:

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8 0
3 years ago
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3 years ago
Evaluate the expression when a= 4, b= - 2, and c= 7 - -&gt; 5a - 9 (b - c)
ollegr [7]

Answer:

65

Step-by-step explanation:

Given the following question:

5a-9(b-c)
a = 4
b = 2
c = 7

In order to find the answer, we need to substitute the variables with the numbers given, and then solve using PEMDAS.

5\times4-9\times(2-7)
2-7=-5
5\times4-9\times-5
5\times4=20
20-9\times-5
9\times-5=-45
20--45
20+45=65
=65

Hope this helps.

8 0
2 years ago
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